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From abroekh...@apache.org
Subject svn commit: r1528071 [2/3] - in /incubator/celix/trunk: cmake/ doap/ examples/ examples/mongoose/private/include/ examples/mongoose/private/src/ examples/osgi-in-action/chapter04-correct-lookup/private/src/ framework/ framework/public/include/ utils/
Date Tue, 01 Oct 2013 12:47:43 GMT
Modified: incubator/celix/trunk/examples/mongoose/private/src/mongoose.c
URL: http://svn.apache.org/viewvc/incubator/celix/trunk/examples/mongoose/private/src/mongoose.c?rev=1528071&r1=1528070&r2=1528071&view=diff
==============================================================================
--- incubator/celix/trunk/examples/mongoose/private/src/mongoose.c (original)
+++ incubator/celix/trunk/examples/mongoose/private/src/mongoose.c Tue Oct  1 12:47:43 2013
@@ -1,4066 +1,4066 @@
-// Copyright (c) 2004-2010 Sergey Lyubka
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-#if defined(_WIN32)
-#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005
-#else
-#define _XOPEN_SOURCE 600 // For flockfile() on Linux
-#define _LARGEFILE_SOURCE // Enable 64-bit file offsets
-#endif
-
-#ifndef _WIN32_WCE // Some ANSI #includes are not available on Windows CE
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <signal.h>
-#include <fcntl.h>
-#endif // !_WIN32_WCE
-
-#include <time.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <limits.h>
-#include <stddef.h>
-#include <stdio.h>
-
-#if defined(_WIN32)  // Windows specific #includes and #defines
-#define _WIN32_WINNT 0x0400 // To make it link in VS2005
-#include <windows.h>
-
-#ifndef PATH_MAX
-#define PATH_MAX MAX_PATH
-#endif
-
-#ifndef _WIN32_WCE
-#include <process.h>
-#include <direct.h>
-#include <io.h>
-#else // _WIN32_WCE
-#include <winsock2.h>
-#define NO_CGI // WinCE has no pipes
-
-typedef long off_t;
-#define BUFSIZ  4096
-
-#define errno   GetLastError()
-#define strerror(x)  _ultoa(x, (char *) _alloca(sizeof(x) *3 ), 10)
-#endif // _WIN32_WCE
-
-#define MAKEUQUAD(lo, hi) ((uint64_t)(((uint32_t)(lo)) | \
-      ((uint64_t)((uint32_t)(hi))) << 32))
-#define RATE_DIFF 10000000 // 100 nsecs
-#define EPOCH_DIFF MAKEUQUAD(0xd53e8000, 0x019db1de)
-#define SYS2UNIX_TIME(lo, hi) \
-  (time_t) ((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF)
-
-// Visual Studio 6 does not know __func__ or __FUNCTION__
-// The rest of MS compilers use __FUNCTION__, not C99 __func__
-// Also use _strtoui64 on modern M$ compilers
-#if defined(_MSC_VER) && _MSC_VER < 1300
-#define STRX(x) #x
-#define STR(x) STRX(x)
-#define __func__ "line " STR(__LINE__)
-#define strtoull(x, y, z) strtoul(x, y, z)
-#define strtoll(x, y, z) strtol(x, y, z)
-#else
-#define __func__  __FUNCTION__
-#define strtoull(x, y, z) _strtoui64(x, y, z)
-#define strtoll(x, y, z) _strtoi64(x, y, z)
-#endif // _MSC_VER
-
-#define ERRNO   GetLastError()
-#define NO_SOCKLEN_T
-#define SSL_LIB   "ssleay32.dll"
-#define CRYPTO_LIB  "libeay32.dll"
-#define DIRSEP '\\'
-#define IS_DIRSEP_CHAR(c) ((c) == '/' || (c) == '\\')
-#define O_NONBLOCK  0
-#if !defined(EWOULDBLOCK)
-#define EWOULDBLOCK  WSAEWOULDBLOCK
-#endif // !EWOULDBLOCK
-#define _POSIX_
-#define INT64_FMT  "I64d"
-
-#define WINCDECL __cdecl
-#define SHUT_WR 1
-#define snprintf _snprintf
-#define vsnprintf _vsnprintf
-#define sleep(x) Sleep((x) * 1000)
-
-#define pipe(x) _pipe(x, BUFSIZ, _O_BINARY)
-#define popen(x, y) _popen(x, y)
-#define pclose(x) _pclose(x)
-#define close(x) _close(x)
-#define dlsym(x,y) GetProcAddress((HINSTANCE) (x), (y))
-#define RTLD_LAZY  0
-#define fseeko(x, y, z) fseek((x), (y), (z))
-#define fdopen(x, y) _fdopen((x), (y))
-#define write(x, y, z) _write((x), (y), (unsigned) z)
-#define read(x, y, z) _read((x), (y), (unsigned) z)
-#define flockfile(x) (void) 0
-#define funlockfile(x) (void) 0
-
-#if !defined(fileno)
-#define fileno(x) _fileno(x)
-#endif // !fileno MINGW #defines fileno
-
-typedef HANDLE pthread_mutex_t;
-typedef struct {HANDLE signal, broadcast;} pthread_cond_t;
-typedef DWORD pthread_t;
-#define pid_t HANDLE // MINGW typedefs pid_t to int. Using #define here.
-
-struct timespec {
-  long tv_nsec;
-  long tv_sec;
-};
-
-static int pthread_mutex_lock(pthread_mutex_t *);
-static int pthread_mutex_unlock(pthread_mutex_t *);
-static FILE *mg_fopen(const char *path, const char *mode);
-
-#if defined(HAVE_STDINT)
-#include <stdint.h>
-#else
-typedef unsigned int  uint32_t;
-typedef unsigned short  uint16_t;
-typedef unsigned __int64 uint64_t;
-typedef __int64   int64_t;
-#define INT64_MAX  9223372036854775807
-#endif // HAVE_STDINT
-
-// POSIX dirent interface
-struct dirent {
-  char d_name[PATH_MAX];
-};
-
-typedef struct DIR {
-  HANDLE   handle;
-  WIN32_FIND_DATAW info;
-  struct dirent  result;
-} DIR;
-
-#else    // UNIX  specific
-#include <sys/wait.h>
-#include <sys/socket.h>
-#include <sys/select.h>
-#include <sys/mman.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/time.h>
-#include <stdint.h>
-#include <inttypes.h>
-#include <netdb.h>
-
-#include <pwd.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <dlfcn.h>
-#include <pthread.h>
-#if defined(__MACH__)
-#define SSL_LIB   "libssl.dylib"
-#define CRYPTO_LIB  "libcrypto.dylib"
-#else
-#define SSL_LIB   "libssl.so"
-#define CRYPTO_LIB  "libcrypto.so"
-#endif
-#define DIRSEP   '/'
-#define IS_DIRSEP_CHAR(c) ((c) == '/')
-#define O_BINARY  0
-#define closesocket(a) close(a)
-#define mg_fopen(x, y) fopen(x, y)
-#define mg_mkdir(x, y) mkdir(x, y)
-#define mg_remove(x) remove(x)
-#define mg_rename(x, y) rename(x, y)
-#define ERRNO errno
-#define INVALID_SOCKET (-1)
-#define INT64_FMT PRId64
-typedef int SOCKET;
-#define WINCDECL
-
-#endif // End of Windows and UNIX specific includes
-
-#include "mongoose.h"
-
-#define MONGOOSE_VERSION "2.11"
-#define PASSWORDS_FILE_NAME ".htpasswd"
-#define CGI_ENVIRONMENT_SIZE 4096
-#define MAX_CGI_ENVIR_VARS 64
-#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
-
-#if defined(DEBUG)
-#define DEBUG_TRACE(x) do { \
-  flockfile(stdout); \
-  printf("*** %lu.%p.%s.%d: ", \
-         (unsigned long) time(NULL), (void *) pthread_self(), \
-         __func__, __LINE__); \
-  printf x; \
-  putchar('\n'); \
-  fflush(stdout); \
-  funlockfile(stdout); \
-} while (0)
-#else
-#define DEBUG_TRACE(x)
-#endif // DEBUG
-
-// Darwin prior to 7.0 and Win32 do not have socklen_t
-#ifdef NO_SOCKLEN_T
-typedef int socklen_t;
-#endif // NO_SOCKLEN_T
-
-typedef void * (*mg_thread_func_pt)(void *);
-
-static const char *http_500_error = "Internal Server Error";
-
-// Snatched from OpenSSL includes. I put the prototypes here to be independent
-// from the OpenSSL source installation. Having this, mongoose + SSL can be
-// built on any system with binary SSL libraries installed.
-typedef struct ssl_st SSL;
-typedef struct ssl_method_st SSL_METHOD;
-typedef struct ssl_ctx_st SSL_CTX;
-
-#define SSL_ERROR_WANT_READ 2
-#define SSL_ERROR_WANT_WRITE 3
-#define SSL_FILETYPE_PEM 1
-#define CRYPTO_LOCK  1
-
-#if defined(NO_SSL_DL)
-extern void SSL_free(SSL *);
-extern int SSL_accept(SSL *);
-extern int SSL_connect(SSL *);
-extern int SSL_read(SSL *, void *, int);
-extern int SSL_write(SSL *, const void *, int);
-extern int SSL_get_error(const SSL *, int);
-extern int SSL_set_fd(SSL *, int);
-extern SSL *SSL_new(SSL_CTX *);
-extern SSL_CTX *SSL_CTX_new(SSL_METHOD *);
-extern SSL_METHOD *SSLv23_server_method(void);
-extern int SSL_library_init(void);
-extern void SSL_load_error_strings(void);
-extern int SSL_CTX_use_PrivateKey_file(SSL_CTX *, const char *, int);
-extern int SSL_CTX_use_certificate_file(SSL_CTX *, const char *, int);
-extern int SSL_CTX_use_certificate_chain_file(SSL_CTX *, const char *);
-extern void SSL_CTX_set_default_passwd_cb(SSL_CTX *, mg_callback_pt);
-extern void SSL_CTX_free(SSL_CTX *);
-extern unsigned long ERR_get_error(void);
-extern char *ERR_error_string(unsigned long, char *);
-extern int CRYPTO_num_locks(void);
-extern void CRYPTO_set_locking_callback(void (*)(int, int, const char *, int));
-extern void CRYPTO_set_id_callback(unsigned long (*)(void));
-#else
-// Dynamically loaded SSL functionality
-struct ssl_func {
-  const char *name;   // SSL function name
-  void  (*ptr)(void); // Function pointer
-};
-
-#define SSL_free (* (void (*)(SSL *)) ssl_sw[0].ptr)
-#define SSL_accept (* (int (*)(SSL *)) ssl_sw[1].ptr)
-#define SSL_connect (* (int (*)(SSL *)) ssl_sw[2].ptr)
-#define SSL_read (* (int (*)(SSL *, void *, int)) ssl_sw[3].ptr)
-#define SSL_write (* (int (*)(SSL *, const void *,int)) ssl_sw[4].ptr)
-#define SSL_get_error (* (int (*)(SSL *, int)) ssl_sw[5])
-#define SSL_set_fd (* (int (*)(SSL *, SOCKET)) ssl_sw[6].ptr)
-#define SSL_new (* (SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)
-#define SSL_CTX_new (* (SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)
-#define SSLv23_server_method (* (SSL_METHOD * (*)(void)) ssl_sw[9].ptr)
-#define SSL_library_init (* (int (*)(void)) ssl_sw[10].ptr)
-#define SSL_CTX_use_PrivateKey_file (* (int (*)(SSL_CTX *, \
-        const char *, int)) ssl_sw[11].ptr)
-#define SSL_CTX_use_certificate_file (* (int (*)(SSL_CTX *, \
-        const char *, int)) ssl_sw[12].ptr)
-#define SSL_CTX_set_default_passwd_cb \
-  (* (void (*)(SSL_CTX *, mg_callback_pt)) ssl_sw[13].ptr)
-#define SSL_CTX_free (* (void (*)(SSL_CTX *)) ssl_sw[14].ptr)
-#define SSL_load_error_strings (* (void (*)(void)) ssl_sw[15].ptr)
-#define SSL_CTX_use_certificate_chain_file \
-  (* (int (*)(SSL_CTX *, const char *)) ssl_sw[16].ptr)
-
-#define CRYPTO_num_locks (* (int (*)(void)) crypto_sw[0].ptr)
-#define CRYPTO_set_locking_callback \
-  (* (void (*)(void (*)(int, int, const char *, int))) crypto_sw[1].ptr)
-#define CRYPTO_set_id_callback \
-  (* (void (*)(unsigned long (*)(void))) crypto_sw[2].ptr)
-#define ERR_get_error (* (unsigned long (*)(void)) ssl_sw[3].ptr)
-#define ERR_error_string (* (char * (*)(unsigned long, char *)) ssl_sw[4].ptr)
-
-// set_ssl_option() function updates this array.
-// It loads SSL library dynamically and changes NULLs to the actual addresses
-// of respective functions. The macros above (like SSL_connect()) are really
-// just calling these functions indirectly via the pointer.
-static struct ssl_func ssl_sw[] = {
-  {"SSL_free",   NULL},
-  {"SSL_accept",   NULL},
-  {"SSL_connect",   NULL},
-  {"SSL_read",   NULL},
-  {"SSL_write",   NULL},
-  {"SSL_get_error",  NULL},
-  {"SSL_set_fd",   NULL},
-  {"SSL_new",   NULL},
-  {"SSL_CTX_new",   NULL},
-  {"SSLv23_server_method", NULL},
-  {"SSL_library_init",  NULL},
-  {"SSL_CTX_use_PrivateKey_file", NULL},
-  {"SSL_CTX_use_certificate_file",NULL},
-  {"SSL_CTX_set_default_passwd_cb",NULL},
-  {"SSL_CTX_free",  NULL},
-  {"SSL_load_error_strings", NULL},
-  {"SSL_CTX_use_certificate_chain_file", NULL},
-  {NULL,    NULL}
-};
-
-// Similar array as ssl_sw. These functions could be located in different lib.
-static struct ssl_func crypto_sw[] = {
-  {"CRYPTO_num_locks",  NULL},
-  {"CRYPTO_set_locking_callback", NULL},
-  {"CRYPTO_set_id_callback", NULL},
-  {"ERR_get_error",  NULL},
-  {"ERR_error_string", NULL},
-  {NULL,    NULL}
-};
-#endif // NO_SSL_DL
-
-static const char *month_names[] = {
-  "Jan", "Feb", "Mar", "Apr", "May", "Jun",
-  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-};
-
-// Unified socket address. For IPv6 support, add IPv6 address structure
-// in the union u.
-struct usa {
-  socklen_t len;
-  union {
-    struct sockaddr sa;
-    struct sockaddr_in sin;
-  } u;
-};
-
-// Describes a string (chunk of memory).
-struct vec {
-  const char *ptr;
-  size_t len;
-};
-
-// Structure used by mg_stat() function. Uses 64 bit file length.
-struct mgstat {
-  int is_directory;  // Directory marker
-  int64_t size;      // File size
-  time_t mtime;      // Modification time
-};
-
-// Describes listening socket, or socket which was accept()-ed by the master
-// thread and queued for future handling by the worker thread.
-struct socket {
-  struct socket *next;  // Linkage
-  SOCKET sock;          // Listening socket
-  struct usa lsa;       // Local socket address
-  struct usa rsa;       // Remote socket address
-  int is_ssl;           // Is socket SSL-ed
-  int is_proxy;
-};
-
-enum {
-  CGI_EXTENSIONS, CGI_ENVIRONMENT, PUT_DELETE_PASSWORDS_FILE, CGI_INTERPRETER,
-  PROTECT_URI, AUTHENTICATION_DOMAIN, SSI_EXTENSIONS, ACCESS_LOG_FILE,
-  SSL_CHAIN_FILE, ENABLE_DIRECTORY_LISTING, ERROR_LOG_FILE,
-  GLOBAL_PASSWORDS_FILE, INDEX_FILES,
-  ENABLE_KEEP_ALIVE, ACCESS_CONTROL_LIST, MAX_REQUEST_SIZE,
-  EXTRA_MIME_TYPES, LISTENING_PORTS,
-  DOCUMENT_ROOT, SSL_CERTIFICATE, NUM_THREADS, RUN_AS_USER,
-  NUM_OPTIONS
-};
-
-static const char *config_options[] = {
-  "C", "cgi_extensions", ".cgi,.pl,.php",
-  "E", "cgi_environment", NULL,
-  "G", "put_delete_passwords_file", NULL,
-  "I", "cgi_interpreter", NULL,
-  "P", "protect_uri", NULL,
-  "R", "authentication_domain", "mydomain.com",
-  "S", "ssi_extensions", ".shtml,.shtm",
-  "a", "access_log_file", NULL,
-  "c", "ssl_chain_file", NULL,
-  "d", "enable_directory_listing", "yes",
-  "e", "error_log_file", NULL,
-  "g", "global_passwords_file", NULL,
-  "i", "index_files", "index.html,index.htm,index.cgi",
-  "k", "enable_keep_alive", "no",
-  "l", "access_control_list", NULL,
-  "M", "max_request_size", "16384",
-  "m", "extra_mime_types", NULL,
-  "p", "listening_ports", "8080",
-  "r", "document_root",  ".",
-  "s", "ssl_certificate", NULL,
-  "t", "num_threads", "10",
-  "u", "run_as_user", NULL,
-  NULL
-};
-#define ENTRIES_PER_CONFIG_OPTION 3
-
-struct mg_context {
-  int stop_flag;                // Should we stop event loop
-  SSL_CTX *ssl_ctx;             // SSL context
-  char *config[NUM_OPTIONS];    // Mongoose configuration parameters
-  mg_callback_pt user_callback;  // User-defined callback function
-
-  struct socket *listening_sockets;
-
-  int num_threads;           // Number of threads
-  pthread_mutex_t mutex;     // Protects (max|num)_threads
-  pthread_cond_t  cond;      // Condvar for tracking workers terminations
-
-  struct socket queue[20];   // Accepted sockets
-  int sq_head;               // Head of the socket queue
-  int sq_tail;               // Tail of the socket queue
-  pthread_cond_t sq_full;    // Singaled when socket is produced
-  pthread_cond_t sq_empty;   // Signaled when socket is consumed
-};
-
-struct mg_connection {
-  struct mg_connection *peer; // Remote target in proxy mode
-  struct mg_request_info request_info;
-  struct mg_context *ctx;
-  SSL *ssl;                   // SSL descriptor
-  struct socket client;       // Connected client
-  time_t birth_time;          // Time connection was accepted
-  int64_t num_bytes_sent;     // Total bytes sent to client
-  int64_t content_len;        // Content-Length header value
-  int64_t consumed_content;   // How many bytes of content is already read
-  char *buf;                  // Buffer for received data
-  int buf_size;               // Buffer size
-  int request_len;            // Size of the request + headers in a buffer
-  int data_len;               // Total size of data in a buffer
-};
-
-const char **mg_get_valid_option_names(void) {
-  return config_options;
-}
-
-static void *call_user(struct mg_connection *conn, enum mg_event event) {
-  return conn->ctx->user_callback == NULL ? NULL :
-    conn->ctx->user_callback(event, conn, &conn->request_info);
-}
-
-static int get_option_index(const char *name) {
-  int i;
-
-  for (i = 0; config_options[i] != NULL; i += ENTRIES_PER_CONFIG_OPTION) {
-    if (strcmp(config_options[i], name) == 0 ||
-        strcmp(config_options[i + 1], name) == 0) {
-      return i / ENTRIES_PER_CONFIG_OPTION;
-    }
-  }
-  return -1;
-}
-
-const char *mg_get_option(const struct mg_context *ctx, const char *name) {
-  int i;
-  if ((i = get_option_index(name)) == -1) {
-    return NULL;
-  } else if (ctx->config[i] == NULL) {
-    return "";
-  } else {
-    return ctx->config[i];
-  }
-}
-
-// Print error message to the opened error log stream.
-static void cry(struct mg_connection *conn, const char *fmt, ...) {
-  char buf[BUFSIZ];
-  va_list ap;
-  FILE *fp;
-  time_t timestamp;
-
-  va_start(ap, fmt);
-  (void) vsnprintf(buf, sizeof(buf), fmt, ap);
-  va_end(ap);
-
-  // Do not lock when getting the callback value, here and below.
-  // I suppose this is fine, since function cannot disappear in the
-  // same way string option can.
-  conn->request_info.log_message = buf;
-  if (call_user(conn, MG_EVENT_LOG) == NULL) {
-    fp = conn->ctx->config[ERROR_LOG_FILE] == NULL ? NULL :
-      mg_fopen(conn->ctx->config[ERROR_LOG_FILE], "a+");
-
-    if (fp != NULL) {
-      flockfile(fp);
-      timestamp = time(NULL);
-
-      (void) fprintf(fp,
-          "[%010lu] [error] [client %s] ",
-          (unsigned long) timestamp,
-          inet_ntoa(conn->client.rsa.u.sin.sin_addr));
-
-      if (conn->request_info.request_method != NULL) {
-        (void) fprintf(fp, "%s %s: ",
-            conn->request_info.request_method,
-            conn->request_info.uri);
-      }
-
-      (void) fprintf(fp, "%s", buf);
-      fputc('\n', fp);
-      funlockfile(fp);
-      if (fp != stderr) {
-        fclose(fp);
-      }
-    }
-  }
-  conn->request_info.log_message = NULL;
-}
-
-// Return OpenSSL error message
-static const char *ssl_error(void) {
-  unsigned long err;
-  err = ERR_get_error();
-  return err == 0 ? "" : ERR_error_string(err, NULL);
-}
-
-// Return fake connection structure. Used for logging, if connection
-// is not applicable at the moment of logging.
-static struct mg_connection *fc(struct mg_context *ctx) {
-  static struct mg_connection fake_connection;
-  fake_connection.ctx = ctx;
-  return &fake_connection;
-}
-
-const char *mg_version(void) {
-  return MONGOOSE_VERSION;
-}
-
-static void mg_strlcpy(register char *dst, register const char *src, size_t n) {
-  for (; *src != '\0' && n > 1; n--) {
-    *dst++ = *src++;
-  }
-  *dst = '\0';
-}
-
-static int lowercase(const char *s) {
-  return tolower(* (unsigned char *) s);
-}
-
-static int mg_strncasecmp(const char *s1, const char *s2, size_t len) {
-  int diff = 0;
-
-  if (len > 0)
-    do {
-      diff = lowercase(s1++) - lowercase(s2++);
-    } while (diff == 0 && s1[-1] != '\0' && --len > 0);
-
-  return diff;
-}
-
-static int mg_strcasecmp(const char *s1, const char *s2) {
-  int diff;
-
-  do {
-    diff = lowercase(s1++) - lowercase(s2++);
-  } while (diff == 0 && s1[-1] != '\0');
-
-  return diff;
-}
-
-static char * mg_strndup(const char *ptr, size_t len) {
-  char *p;
-
-  if ((p = (char *) malloc(len + 1)) != NULL) {
-    mg_strlcpy(p, ptr, len + 1);
-  }
-
-  return p;
-}
-
-static char * mg_strdup(const char *str) {
-  return mg_strndup(str, strlen(str));
-}
-
-// Like snprintf(), but never returns negative value, or the value
-// that is larger than a supplied buffer.
-// Thanks to Adam Zeldis to pointing snprintf()-caused vulnerability
-// in his audit report.
-static int mg_vsnprintf(struct mg_connection *conn, char *buf, size_t buflen,
-                        const char *fmt, va_list ap) {
-  int n;
-
-  if (buflen == 0)
-    return 0;
-
-  n = vsnprintf(buf, buflen, fmt, ap);
-
-  if (n < 0) {
-    cry(conn, "vsnprintf error");
-    n = 0;
-  } else if (n >= (int) buflen) {
-    cry(conn, "truncating vsnprintf buffer: [%.*s]",
-        n > 200 ? 200 : n, buf);
-    n = (int) buflen - 1;
-  }
-  buf[n] = '\0';
-
-  return n;
-}
-
-static int mg_snprintf(struct mg_connection *conn, char *buf, size_t buflen,
-                       const char *fmt, ...) {
-  va_list ap;
-  int n;
-
-  va_start(ap, fmt);
-  n = mg_vsnprintf(conn, buf, buflen, fmt, ap);
-  va_end(ap);
-
-  return n;
-}
-
-// Skip the characters until one of the delimiters characters found.
-// 0-terminate resulting word. Skip the rest of the delimiters if any.
-// Advance pointer to buffer to the next word. Return found 0-terminated word.
-static char *skip(char **buf, const char *delimiters) {
-  char *p, *begin_word, *end_word, *end_delimiters;
-
-  begin_word = *buf;
-  end_word = begin_word + strcspn(begin_word, delimiters);
-  end_delimiters = end_word + strspn(end_word, delimiters);
-
-  for (p = end_word; p < end_delimiters; p++) {
-    *p = '\0';
-  }
-
-  *buf = end_delimiters;
-
-  return begin_word;
-}
-
-// Return HTTP header value, or NULL if not found.
-static const char *get_header(const struct mg_request_info *ri,
-                              const char *name) {
-  int i;
-
-  for (i = 0; i < ri->num_headers; i++)
-    if (!mg_strcasecmp(name, ri->http_headers[i].name))
-      return ri->http_headers[i].value;
-
-  return NULL;
-}
-
-const char *mg_get_header(const struct mg_connection *conn, const char *name) {
-  return get_header(&conn->request_info, name);
-}
-
-// A helper function for traversing comma separated list of values.
-// It returns a list pointer shifted to the next value, of NULL if the end
-// of the list found.
-// Value is stored in val vector. If value has form "x=y", then eq_val
-// vector is initialized to point to the "y" part, and val vector length
-// is adjusted to point only to "x".
-static const char *next_option(const char *list, struct vec *val,
-                               struct vec *eq_val) {
-  if (list == NULL || *list == '\0') {
-    /* End of the list */
-    list = NULL;
-  } else {
-    val->ptr = list;
-    if ((list = strchr(val->ptr, ',')) != NULL) {
-      /* Comma found. Store length and shift the list ptr */
-      val->len = list - val->ptr;
-      list++;
-    } else {
-      /* This value is the last one */
-      list = val->ptr + strlen(val->ptr);
-      val->len = list - val->ptr;
-    }
-
-    if (eq_val != NULL) {
-      /*
-       * Value has form "x=y", adjust pointers and lengths
-       * so that val points to "x", and eq_val points to "y".
-       */
-      eq_val->len = 0;
-      eq_val->ptr = memchr(val->ptr, '=', val->len);
-      if (eq_val->ptr != NULL) {
-        eq_val->ptr++;  /* Skip over '=' character */
-        eq_val->len = val->ptr + val->len - eq_val->ptr;
-        val->len = (eq_val->ptr - val->ptr) - 1;
-      }
-    }
-  }
-
-  return list;
-}
-
-#if !defined(NO_CGI)
-static int match_extension(const char *path, const char *ext_list) {
-  struct vec ext_vec;
-  size_t path_len;
-
-  path_len = strlen(path);
-
-  while ((ext_list = next_option(ext_list, &ext_vec, NULL)) != NULL)
-    if (ext_vec.len < path_len &&
-        mg_strncasecmp(path + path_len - ext_vec.len,
-          ext_vec.ptr, ext_vec.len) == 0)
-      return 1;
-
-  return 0;
-}
-#endif // !NO_CGI
-
-// HTTP 1.1 assumes keep alive if "Connection:" header is not set
-// This function must tolerate situations when connection info is not
-// set up, for example if request parsing failed.
-static int should_keep_alive(const struct mg_connection *conn) {
-  const char *http_version = conn->request_info.http_version;
-  const char *header = mg_get_header(conn, "Connection");
-  return (header == NULL && http_version && !strcmp(http_version, "1.1")) ||
-      (header != NULL && !strcmp(header, "keep-alive"));
-}
-
-static const char *suggest_connection_header(const struct mg_connection *conn) {
-  return should_keep_alive(conn) ? "keep-alive" : "close";
-}
-
-static void send_http_error(struct mg_connection *conn, int status,
-                            const char *reason, const char *fmt, ...) {
-  char buf[BUFSIZ];
-  va_list ap;
-  int len;
-
-  conn->request_info.status_code = status;
-
-  if (call_user(conn, MG_HTTP_ERROR) == NULL) {
-    buf[0] = '\0';
-    len = 0;
-
-    /* Errors 1xx, 204 and 304 MUST NOT send a body */
-    if (status > 199 && status != 204 && status != 304) {
-      len = mg_snprintf(conn, buf, sizeof(buf), "Error %d: %s", status, reason);
-      cry(conn, "%s", buf);
-      buf[len++] = '\n';
-
-      va_start(ap, fmt);
-      len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len, fmt, ap);
-      va_end(ap);
-    }
-    DEBUG_TRACE(("[%s]", buf));
-
-    mg_printf(conn, "HTTP/1.1 %d %s\r\n"
-              "Content-Type: text/plain\r\n"
-              "Content-Length: %d\r\n"
-              "Connection: %s\r\n\r\n", status, reason, len,
-              suggest_connection_header(conn));
-    conn->num_bytes_sent += mg_printf(conn, "%s", buf);
-  }
-}
-
-#ifdef _WIN32
-static int pthread_mutex_init(pthread_mutex_t *mutex, void *unused) {
-  unused = NULL;
-  *mutex = CreateMutex(NULL, FALSE, NULL);
-  return *mutex == NULL ? -1 : 0;
-}
-
-static int pthread_mutex_destroy(pthread_mutex_t *mutex) {
-  return CloseHandle(*mutex) == 0 ? -1 : 0;
-}
-
-static int pthread_mutex_lock(pthread_mutex_t *mutex) {
-  return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
-}
-
-static int pthread_mutex_unlock(pthread_mutex_t *mutex) {
-  return ReleaseMutex(*mutex) == 0 ? -1 : 0;
-}
-
-static int pthread_cond_init(pthread_cond_t *cv, const void *unused) {
-  unused = NULL;
-  cv->signal = CreateEvent(NULL, FALSE, FALSE, NULL);
-  cv->broadcast = CreateEvent(NULL, TRUE, FALSE, NULL);
-  return cv->signal != NULL && cv->broadcast != NULL ? 0 : -1;
-}
-
-static int pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex) {
-  HANDLE handles[] = {cv->signal, cv->broadcast};
-  ReleaseMutex(*mutex);
-  WaitForMultipleObjects(2, handles, FALSE, INFINITE);
-  return ReleaseMutex(*mutex) == 0 ? -1 : 0;
-}
-
-static int pthread_cond_signal(pthread_cond_t *cv) {
-  return SetEvent(cv->signal) == 0 ? -1 : 0;
-}
-
-static int pthread_cond_broadcast(pthread_cond_t *cv) {
-  // Implementation with PulseEvent() has race condition, see
-  // http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
-  return PulseEvent(cv->broadcast) == 0 ? -1 : 0;
-}
-
-static int pthread_cond_destroy(pthread_cond_t *cv) {
-  return CloseHandle(cv->signal) && CloseHandle(cv->broadcast) ? 0 : -1;
-}
-
-static pthread_t pthread_self(void) {
-  return GetCurrentThreadId();
-}
-
-// For Windows, change all slashes to backslashes in path names.
-static void change_slashes_to_backslashes(char *path) {
-  int i;
-
-  for (i = 0; path[i] != '\0'; i++) {
-    if (path[i] == '/')
-      path[i] = '\\';
-    // i > 0 check is to preserve UNC paths, like \\server\file.txt
-    if (path[i] == '\\' && i > 0)
-      while (path[i + 1] == '\\' || path[i + 1] == '/')
-        (void) memmove(path + i + 1,
-            path + i + 2, strlen(path + i + 1));
-  }
-}
-
-// Encode 'path' which is assumed UTF-8 string, into UNICODE string.
-// wbuf and wbuf_len is a target buffer and its length.
-static void to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len) {
-  char buf[PATH_MAX], *p;
-
-  mg_strlcpy(buf, path, sizeof(buf));
-  change_slashes_to_backslashes(buf);
-
-  // Point p to the end of the file name
-  p = buf + strlen(buf) - 1;
-
-  // Trim trailing backslash character
-  while (p > buf && *p == '\\' && p[-1] != ':') {
-    *p-- = '\0';
-  }
-
-   // Protect from CGI code disclosure.
-   // This is very nasty hole. Windows happily opens files with
-   // some garbage in the end of file name. So fopen("a.cgi    ", "r")
-   // actually opens "a.cgi", and does not return an error!
-  if (*p == 0x20 ||               // No space at the end
-      (*p == 0x2e && p > buf) ||  // No '.' but allow '.' as full path
-      *p == 0x2b ||               // No '+'
-      (*p & ~0x7f)) {             // And generally no non-ascii chars
-    (void) fprintf(stderr, "Rejecting suspicious path: [%s]", buf);
-    buf[0] = '\0';
-  }
-
-  (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
-}
-
-#if defined(_WIN32_WCE)
-static time_t time(time_t *ptime) {
-  time_t t;
-  SYSTEMTIME st;
-  FILETIME ft;
-
-  GetSystemTime(&st);
-  SystemTimeToFileTime(&st, &ft);
-  t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
-
-  if (ptime != NULL) {
-    *ptime = t;
-  }
-
-  return t;
-}
-
-static time_t mktime(struct tm *ptm) {
-  SYSTEMTIME st;
-  FILETIME ft, lft;
-
-  st.wYear = ptm->tm_year + 1900;
-  st.wMonth = ptm->tm_mon + 1;
-  st.wDay = ptm->tm_mday;
-  st.wHour = ptm->tm_hour;
-  st.wMinute = ptm->tm_min;
-  st.wSecond = ptm->tm_sec;
-  st.wMilliseconds = 0;
-
-  SystemTimeToFileTime(&st, &ft);
-  LocalFileTimeToFileTime(&ft, &lft);
-  return (time_t) ((MAKEUQUAD(lft.dwLowDateTime, lft.dwHighDateTime) -
-                    EPOCH_DIFF) / RATE_DIFF);
-}
-
-static struct tm *localtime(const time_t *ptime, struct tm *ptm) {
-  int64_t t = ((int64_t) *ptime) * RATE_DIFF + EPOCH_DIFF;
-  FILETIME ft, lft;
-  SYSTEMTIME st;
-  TIME_ZONE_INFORMATION tzinfo;
-
-  if (ptm == NULL) {
-    return NULL;
-  }
-
-  * (int64_t *) &ft = t;
-  FileTimeToLocalFileTime(&ft, &lft);
-  FileTimeToSystemTime(&lft, &st);
-  ptm->tm_year = st.wYear - 1900;
-  ptm->tm_mon = st.wMonth - 1;
-  ptm->tm_wday = st.wDayOfWeek;
-  ptm->tm_mday = st.wDay;
-  ptm->tm_hour = st.wHour;
-  ptm->tm_min = st.wMinute;
-  ptm->tm_sec = st.wSecond;
-  ptm->tm_yday = 0; // hope nobody uses this
-  ptm->tm_isdst =
-    GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_DAYLIGHT ? 1 : 0;
-
-  return ptm;
-}
-
-static size_t strftime(char *dst, size_t dst_size, const char *fmt,
-                       const struct tm *tm) {
-  (void) snprintf(dst, dst_size, "implement strftime() for WinCE");
-  return 0;
-}
-#endif
-
-static int mg_rename(const char* oldname, const char* newname) {
-  wchar_t woldbuf[PATH_MAX];
-  wchar_t wnewbuf[PATH_MAX];
-
-  to_unicode(oldname, woldbuf, ARRAY_SIZE(woldbuf));
-  to_unicode(newname, wnewbuf, ARRAY_SIZE(wnewbuf));
-
-  return MoveFileW(woldbuf, wnewbuf) ? 0 : -1;
-}
-
-
-static FILE *mg_fopen(const char *path, const char *mode) {
-  wchar_t wbuf[PATH_MAX], wmode[20];
-
-  to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
-  MultiByteToWideChar(CP_UTF8, 0, mode, -1, wmode, ARRAY_SIZE(wmode));
-
-  return _wfopen(wbuf, wmode);
-}
-
-static int mg_stat(const char *path, struct mgstat *stp) {
-  int ok = -1; // Error
-  wchar_t wbuf[PATH_MAX];
-  WIN32_FILE_ATTRIBUTE_DATA info;
-
-  to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
-
-  if (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0) {
-    stp->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
-    stp->mtime = SYS2UNIX_TIME(info.ftLastWriteTime.dwLowDateTime,
-                               info.ftLastWriteTime.dwHighDateTime);
-    stp->is_directory =
-      info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
-    ok = 0;  // Success
-  }
-
-  return ok;
-}
-
-static int mg_remove(const char *path) {
-  wchar_t wbuf[PATH_MAX];
-  to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
-  return DeleteFileW(wbuf) ? 0 : -1;
-}
-
-static int mg_mkdir(const char *path, int mode) {
-  char buf[PATH_MAX];
-  wchar_t wbuf[PATH_MAX];
-
-  mode = 0; // Unused
-  mg_strlcpy(buf, path, sizeof(buf));
-  change_slashes_to_backslashes(buf);
-
-  (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, sizeof(wbuf));
-
-  return CreateDirectoryW(wbuf, NULL) ? 0 : -1;
-}
-
-// Implementation of POSIX opendir/closedir/readdir for Windows.
-static DIR * opendir(const char *name) {
-  DIR *dir = NULL;
-  wchar_t wpath[PATH_MAX];
-  DWORD attrs;
-
-  if (name == NULL) {
-    SetLastError(ERROR_BAD_ARGUMENTS);
-  } else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
-    SetLastError(ERROR_NOT_ENOUGH_MEMORY);
-  } else {
-    to_unicode(name, wpath, ARRAY_SIZE(wpath));
-    attrs = GetFileAttributesW(wpath);
-    if (attrs != 0xFFFFFFFF &&
-        ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
-      (void) wcscat(wpath, L"\\*");
-      dir->handle = FindFirstFileW(wpath, &dir->info);
-      dir->result.d_name[0] = '\0';
-    } else {
-      free(dir);
-      dir = NULL;
-    }
-  }
-
-  return dir;
-}
-
-static int closedir(DIR *dir) {
-  int result = 0;
-
-  if (dir != NULL) {
-    if (dir->handle != INVALID_HANDLE_VALUE)
-      result = FindClose(dir->handle) ? 0 : -1;
-
-    free(dir);
-  } else {
-    result = -1;
-    SetLastError(ERROR_BAD_ARGUMENTS);
-  }
-
-  return result;
-}
-
-struct dirent * readdir(DIR *dir) {
-  struct dirent *result = 0;
-
-  if (dir) {
-    if (dir->handle != INVALID_HANDLE_VALUE) {
-      result = &dir->result;
-      (void) WideCharToMultiByte(CP_UTF8, 0,
-          dir->info.cFileName, -1, result->d_name,
-          sizeof(result->d_name), NULL, NULL);
-
-      if (!FindNextFileW(dir->handle, &dir->info)) {
-        (void) FindClose(dir->handle);
-        dir->handle = INVALID_HANDLE_VALUE;
-      }
-
-    } else {
-      SetLastError(ERROR_FILE_NOT_FOUND);
-    }
-  } else {
-    SetLastError(ERROR_BAD_ARGUMENTS);
-  }
-
-  return result;
-}
-
-#define set_close_on_exec(fd) // No FD_CLOEXEC on Windows
-
-static int start_thread(struct mg_context *ctx, mg_thread_func_pt func,
-                        void *param) {
-  HANDLE hThread;
-  ctx = NULL; // Unused
-
-  hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) func, param, 0,
-                         NULL);
-  if (hThread != NULL) {
-    (void) CloseHandle(hThread);
-  }
-
-  return hThread == NULL ? -1 : 0;
-}
-
-static HANDLE dlopen(const char *dll_name, int flags) {
-  wchar_t wbuf[PATH_MAX];
-  flags = 0; // Unused
-  to_unicode(dll_name, wbuf, ARRAY_SIZE(wbuf));
-  return LoadLibraryW(wbuf);
-}
-
-#if !defined(NO_CGI)
-#define SIGKILL 0
-static int kill(pid_t pid, int sig_num) {
-  (void) TerminateProcess(pid, sig_num);
-  (void) CloseHandle(pid);
-  return 0;
-}
-
-static pid_t spawn_process(struct mg_connection *conn, const char *prog,
-                           char *envblk, char *envp[], int fd_stdin,
-                           int fd_stdout, const char *dir) {
-  HANDLE me;
-  char *p, *interp, cmdline[PATH_MAX], buf[PATH_MAX];
-  FILE *fp;
-  STARTUPINFOA si;
-  PROCESS_INFORMATION pi;
-
-  envp = NULL; // Unused
-
-  (void) memset(&si, 0, sizeof(si));
-  (void) memset(&pi, 0, sizeof(pi));
-
-  // TODO(lsm): redirect CGI errors to the error log file
-  si.cb  = sizeof(si);
-  si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
-  si.wShowWindow = SW_HIDE;
-
-  me = GetCurrentProcess();
-  (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdin), me,
-      &si.hStdInput, 0, TRUE, DUPLICATE_SAME_ACCESS);
-  (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdout), me,
-      &si.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
-
-  // If CGI file is a script, try to read the interpreter line
-  interp = conn->ctx->config[CGI_INTERPRETER];
-  if (interp == NULL) {
-    buf[2] = '\0';
-    if ((fp = fopen(cmdline, "r")) != NULL) {
-      (void) fgets(buf, sizeof(buf), fp);
-      if (buf[0] != '#' || buf[1] != '!') {
-        // First line does not start with "#!". Do not set interpreter.
-        buf[2] = '\0';
-      } else {
-        // Trim whitespaces in interpreter name
-        for (p = &buf[strlen(buf) - 1]; p > buf && isspace(*p); p--) {
-          *p = '\0';
-        }
-      }
-      (void) fclose(fp);
-    }
-    interp = buf + 2;
-  }
-
-  (void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%s%s%c%s",
-                     interp, interp[0] == '\0' ? "" : " ", dir, DIRSEP, prog);
-
-  DEBUG_TRACE(("Running [%s]", cmdline));
-  if (CreateProcessA(NULL, cmdline, NULL, NULL, TRUE,
-        CREATE_NEW_PROCESS_GROUP, envblk, dir, &si, &pi) == 0) {
-    cry(conn, "%s: CreateProcess(%s): %d",
-        __func__, cmdline, ERRNO);
-    pi.hProcess = (pid_t) -1;
-  } else {
-    (void) close(fd_stdin);
-    (void) close(fd_stdout);
-  }
-
-  (void) CloseHandle(si.hStdOutput);
-  (void) CloseHandle(si.hStdInput);
-  (void) CloseHandle(pi.hThread);
-
-  return (pid_t) pi.hProcess;
-}
-#endif /* !NO_CGI */
-
-static int set_non_blocking_mode(SOCKET sock) {
-  unsigned long on = 1;
-  return ioctlsocket(sock, FIONBIO, &on);
-}
-
-#else
-static int mg_stat(const char *path, struct mgstat *stp) {
-  struct stat st;
-  int ok;
-
-  if (stat(path, &st) == 0) {
-    ok = 0;
-    stp->size = st.st_size;
-    stp->mtime = st.st_mtime;
-    stp->is_directory = S_ISDIR(st.st_mode);
-  } else {
-    ok = -1;
-  }
-
-  return ok;
-}
-
-static void set_close_on_exec(int fd) {
-  (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
-}
-
-static int start_thread(struct mg_context *ctx, mg_thread_func_pt func,
-                        void *param) {
-  pthread_t thread_id;
-  pthread_attr_t attr;
-  int retval;
-
-  (void) pthread_attr_init(&attr);
-  (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-  // TODO(lsm): figure out why mongoose dies on Linux if next line is enabled
-  // (void) pthread_attr_setstacksize(&attr, sizeof(struct mg_connection) * 5);
-
-  if ((retval = pthread_create(&thread_id, &attr, func, param)) != 0) {
-    cry(fc(ctx), "%s: %s", __func__, strerror(retval));
-  }
-
-  return retval;
-}
-
-#ifndef NO_CGI
-static pid_t spawn_process(struct mg_connection *conn, const char *prog,
-                           char *envblk, char *envp[], int fd_stdin,
-                           int fd_stdout, const char *dir) {
-  pid_t pid;
-  const char *interp;
-
-  envblk = NULL; // Unused
-
-  if ((pid = fork()) == -1) {
-    // Parent
-    send_http_error(conn, 500, http_500_error, "fork(): %s", strerror(ERRNO));
-  } else if (pid == 0) {
-    // Child
-    if (chdir(dir) != 0) {
-      cry(conn, "%s: chdir(%s): %s", __func__, dir, strerror(ERRNO));
-    } else if (dup2(fd_stdin, 0) == -1) {
-      cry(conn, "%s: dup2(%d, 0): %s", __func__, fd_stdin, strerror(ERRNO));
-    } else if (dup2(fd_stdout, 1) == -1) {
-      cry(conn, "%s: dup2(%d, 1): %s", __func__, fd_stdout, strerror(ERRNO));
-    } else {
-      (void) dup2(fd_stdout, 2);
-      (void) close(fd_stdin);
-      (void) close(fd_stdout);
-
-      // Execute CGI program. No need to lock: new process
-      interp = conn->ctx->config[CGI_INTERPRETER];
-      if (interp == NULL) {
-        (void) execle(prog, prog, NULL, envp);
-        cry(conn, "%s: execle(%s): %s", __func__, prog, strerror(ERRNO));
-      } else {
-        (void) execle(interp, interp, prog, NULL, envp);
-        cry(conn, "%s: execle(%s %s): %s", __func__, interp, prog,
-            strerror(ERRNO));
-      }
-    }
-    exit(EXIT_FAILURE);
-  } else {
-    // Parent. Close stdio descriptors
-    (void) close(fd_stdin);
-    (void) close(fd_stdout);
-  }
-
-  return pid;
-}
-#endif // !NO_CGI
-
-static int set_non_blocking_mode(SOCKET sock) {
-  int flags;
-
-  flags = fcntl(sock, F_GETFL, 0);
-  (void) fcntl(sock, F_SETFL, flags | O_NONBLOCK);
-
-  return 0;
-}
-#endif // _WIN32
-
-// Write data to the IO channel - opened file descriptor, socket or SSL
-// descriptor. Return number of bytes written.
-static int64_t push(FILE *fp, SOCKET sock, SSL *ssl, const char *buf,
-                    int64_t len) {
-  int64_t sent;
-  int n, k;
-
-  sent = 0;
-  while (sent < len) {
-
-    /* How many bytes we send in this iteration */
-    k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent);
-
-    if (ssl != NULL) {
-      n = SSL_write(ssl, buf + sent, k);
-    } else if (fp != NULL) {
-      n = fwrite(buf + sent, 1, k, fp);
-      if (ferror(fp))
-        n = -1;
-    } else {
-      n = send(sock, buf + sent, k, 0);
-    }
-
-    if (n < 0)
-      break;
-
-    sent += n;
-  }
-
-  return sent;
-}
-
-// Read from IO channel - opened file descriptor, socket, or SSL descriptor.
-// Return number of bytes read.
-static int pull(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int len) {
-  int nread;
-
-  if (ssl != NULL) {
-    nread = SSL_read(ssl, buf, len);
-  } else if (fp != NULL) {
-    nread = fread(buf, 1, (size_t) len, fp);
-    if (ferror(fp))
-      nread = -1;
-  } else {
-    nread = recv(sock, buf, (size_t) len, 0);
-  }
-
-  return nread;
-}
-
-int mg_read(struct mg_connection *conn, void *buf, size_t len) {
-  int n, buffered_len, nread;
-  const char *buffered;
-
-  assert(conn->content_len >= conn->consumed_content);
-  DEBUG_TRACE(("%p %zu %lld %lld", buf, len,
-               conn->content_len, conn->consumed_content));
-  nread = 0;
-  if (strcmp(conn->request_info.request_method, "POST") == 0 &&
-      conn->consumed_content < conn->content_len) {
-
-    // Adjust number of bytes to read.
-    int64_t to_read = conn->content_len - conn->consumed_content;
-    if (to_read < (int64_t) len) {
-      len = (int) to_read;
-    }
-
-    // How many bytes of data we have buffered in the request buffer?
-    buffered = conn->buf + conn->request_len;
-    buffered_len = conn->data_len - conn->request_len;
-    assert(buffered_len >= 0);
-
-    // Return buffered data back if we haven't done that yet.
-    if (conn->consumed_content < (int64_t) buffered_len) {
-      buffered_len -= (int) conn->consumed_content;
-      if (len < (size_t) buffered_len) {
-        buffered_len = len;
-      }
-      memcpy(buf, buffered, buffered_len);
-      len -= buffered_len;
-      buf = (char *) buf + buffered_len;
-      conn->consumed_content += buffered_len;
-      nread = buffered_len;
-    }
-
-    // We have returned all buffered data. Read new data from the remote socket.
-    while (len > 0) {
-      n = pull(NULL, conn->client.sock, conn->ssl, (char *) buf, (int) len);
-      if (n <= 0) {
-        break;
-      }
-      buf = (char *) buf + n;
-      conn->consumed_content += n;
-      nread += n;
-      len -= n;
-    }
-  }
-  return nread;
-}
-
-int mg_write(struct mg_connection *conn, const void *buf, size_t len) {
-  return (int) push(NULL, conn->client.sock, conn->ssl,
-      (const char *) buf, (int64_t) len);
-}
-
-int mg_printf(struct mg_connection *conn, const char *fmt, ...) {
-  char buf[BUFSIZ];
-  int len;
-  va_list ap;
-
-  va_start(ap, fmt);
-  len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
-  va_end(ap);
-
-  return mg_write(conn, buf, len);
-}
-
-// URL-decode input buffer into destination buffer.
-// 0-terminate the destination buffer. Return the length of decoded data.
-// form-url-encoded data differs from URI encoding in a way that it
-// uses '+' as character for space, see RFC 1866 section 8.2.1
-// http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
-static size_t url_decode(const char *src, size_t src_len, char *dst,
-                         size_t dst_len, int is_form_url_encoded) {
-  size_t i, j;
-  int a, b;
-#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
-
-  for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
-    if (src[i] == '%' &&
-        isxdigit(* (unsigned char *) (src + i + 1)) &&
-        isxdigit(* (unsigned char *) (src + i + 2))) {
-      a = tolower(* (unsigned char *) (src + i + 1));
-      b = tolower(* (unsigned char *) (src + i + 2));
-      dst[j] = (char) ((HEXTOI(a) << 4) | HEXTOI(b));
-      i += 2;
-    } else if (is_form_url_encoded && src[i] == '+') {
-      dst[j] = ' ';
-    } else {
-      dst[j] = src[i];
-    }
-  }
-
-  dst[j] = '\0'; /* Null-terminate the destination */
-
-  return j;
-}
-
-// Scan given buffer and fetch the value of the given variable.
-// It can be specified in query string, or in the POST data.
-// Return NULL if the variable not found, or allocated 0-terminated value.
-// It is caller's responsibility to free the returned value.
-int mg_get_var(const char *buf, size_t buf_len, const char *name,
-               char *dst, size_t dst_len) {
-  const char *p, *e, *s;
-  size_t name_len, len;
-
-  name_len = strlen(name);
-  e = buf + buf_len;
-  len = -1;
-  dst[0] = '\0';
-
-  // buf is "var1=val1&var2=val2...". Find variable first
-  for (p = buf; p != NULL && p + name_len < e; p++) {
-    if ((p == buf || p[-1] == '&') && p[name_len] == '=' &&
-        !mg_strncasecmp(name, p, name_len)) {
-
-      // Point p to variable value
-      p += name_len + 1;
-
-      // Point s to the end of the value
-      s = (const char *) memchr(p, '&', e - p);
-      if (s == NULL) {
-        s = e;
-      }
-      assert(s >= p);
-
-      // Decode variable into destination buffer
-      if ((size_t) (s - p) < dst_len) {
-        len = url_decode(p, s - p, dst, dst_len, 1);
-      }
-      break;
-    }
-  }
-
-  return len;
-}
-
-int mg_get_cookie(const struct mg_connection *conn, const char *cookie_name,
-                  char *dst, size_t dst_size) {
-  const char *s, *p, *end;
-  int name_len, len = -1;
-
-  dst[0] = '\0';
-  if ((s = mg_get_header(conn, "Cookie")) == NULL) {
-    return 0;
-  }
-
-  name_len = strlen(cookie_name);
-  end = s + strlen(s);
-
-  for (; (s = strstr(s, cookie_name)) != NULL; s += name_len)
-    if (s[name_len] == '=') {
-      s += name_len + 1;
-      if ((p = strchr(s, ' ')) == NULL)
-        p = end;
-      if (p[-1] == ';')
-        p--;
-      if (*s == '"' && p[-1] == '"' && p > s + 1) {
-        s++;
-        p--;
-      }
-      if ((size_t) (p - s) < dst_size) {
-        len = (p - s) + 1;
-        mg_strlcpy(dst, s, len);
-      }
-      break;
-    }
-
-  return len;
-}
-
-// Mongoose allows to specify multiple directories to serve,
-// like /var/www,/~bob=/home/bob. That means that root directory depends on URI.
-// This function returns root dir for given URI.
-static int get_document_root(const struct mg_connection *conn,
-                             struct vec *document_root) {
-  const char *root, *uri;
-  int len_of_matched_uri;
-  struct vec uri_vec, path_vec;
-
-  uri = conn->request_info.uri;
-  len_of_matched_uri = 0;
-  root = next_option(conn->ctx->config[DOCUMENT_ROOT], document_root, NULL);
-
-  while ((root = next_option(root, &uri_vec, &path_vec)) != NULL) {
-    if (memcmp(uri, uri_vec.ptr, uri_vec.len) == 0) {
-      *document_root = path_vec;
-      len_of_matched_uri = uri_vec.len;
-      break;
-    }
-  }
-
-  return len_of_matched_uri;
-}
-
-static void convert_uri_to_file_name(struct mg_connection *conn,
-                                     const char *uri, char *buf,
-                                     size_t buf_len) {
-  struct vec vec;
-  int match_len;
-
-  match_len = get_document_root(conn, &vec);
-  mg_snprintf(conn, buf, buf_len, "%.*s%s", vec.len, vec.ptr, uri + match_len);
-
-#ifdef _WIN32
-  change_slashes_to_backslashes(buf);
-#endif /* _WIN32 */
-
-  DEBUG_TRACE(("[%s] -> [%s], [%.*s]", uri, buf, (int) vec.len, vec.ptr));
-}
-
-static int sslize(struct mg_connection *conn, int (*func)(SSL *)) {
-  return (conn->ssl = SSL_new(conn->ctx->ssl_ctx)) != NULL &&
-    SSL_set_fd(conn->ssl, conn->client.sock) == 1 &&
-    func(conn->ssl) == 1;
-}
-
-struct mg_connection *mg_connect(struct mg_connection *conn,
-                                 const char *host, int port, int use_ssl) {
-  struct mg_connection *newconn = NULL;
-  struct sockaddr_in sin;
-  struct hostent *he;
-  int sock;
-
-  if (conn->ctx->ssl_ctx == NULL && use_ssl) {
-    cry(conn, "%s: SSL is not initialized", __func__);
-  } else if ((he = gethostbyname(host)) == NULL) {
-    cry(conn, "%s: gethostbyname(%s): %s", __func__, host, strerror(ERRNO));
-  } else if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
-    cry(conn, "%s: socket: %s", __func__, strerror(ERRNO));
-  } else {
-    sin.sin_family = AF_INET;
-    sin.sin_port = htons((uint16_t) port);
-    sin.sin_addr = * (struct in_addr *) he->h_addr_list[0];
-    if (connect(sock, (struct sockaddr *) &sin, sizeof(sin)) != 0) {
-      cry(conn, "%s: connect(%s:%d): %s", __func__, host, port,
-          strerror(ERRNO));
-      closesocket(sock);
-    } else if ((newconn = calloc(1, sizeof(*newconn))) == NULL) {
-      cry(conn, "%s: calloc: %s", __func__, strerror(ERRNO));
-      closesocket(sock);
-    } else {
-      newconn->client.sock = sock;
-      newconn->client.rsa.u.sin = sin;
-      if (use_ssl) {
-        sslize(newconn, SSL_connect);
-      }
-    }
-  }
-
-  return newconn;
-}
-
-// Check whether full request is buffered. Return:
-//   -1  if request is malformed
-//    0  if request is not yet fully buffered
-//   >0  actual request length, including last \r\n\r\n
-static int get_request_len(const char *buf, int buflen) {
-  const char *s, *e;
-  int len = 0;
-
-  DEBUG_TRACE(("buf: %p, len: %d", buf, buflen));
-  for (s = buf, e = s + buflen - 1; len <= 0 && s < e; s++)
-    // Control characters are not allowed but >=128 is.
-    if (!isprint(* (unsigned char *) s) && *s != '\r' &&
-        *s != '\n' && * (unsigned char *) s < 128) {
-      len = -1;
-    } else if (s[0] == '\n' && s[1] == '\n') {
-      len = (int) (s - buf) + 2;
-    } else if (s[0] == '\n' && &s[1] < e &&
-        s[1] == '\r' && s[2] == '\n') {
-      len = (int) (s - buf) + 3;
-    }
-
-  return len;
-}
-
-// Convert month to the month number. Return -1 on error, or month number
-static int month_number_to_month_name(const char *s) {
-  size_t i;
-
-  for (i = 0; i < ARRAY_SIZE(month_names); i++)
-    if (!strcmp(s, month_names[i]))
-      return (int) i;
-
-  return -1;
-}
-
-// Parse date-time string, and return the corresponding time_t value
-static time_t parse_date_string(const char *s) {
-  time_t current_time;
-  struct tm tm, *tmp;
-  char mon[32];
-  int sec, min, hour, mday, month, year;
-
-  (void) memset(&tm, 0, sizeof(tm));
-  sec = min = hour = mday = month = year = 0;
-
-  if (((sscanf(s, "%d/%3s/%d %d:%d:%d",
-            &mday, mon, &year, &hour, &min, &sec) == 6) ||
-        (sscanf(s, "%d %3s %d %d:%d:%d",
-                &mday, mon, &year, &hour, &min, &sec) == 6) ||
-        (sscanf(s, "%*3s, %d %3s %d %d:%d:%d",
-                &mday, mon, &year, &hour, &min, &sec) == 6) ||
-        (sscanf(s, "%d-%3s-%d %d:%d:%d",
-                &mday, mon, &year, &hour, &min, &sec) == 6)) &&
-      (month = month_number_to_month_name(mon)) != -1) {
-    tm.tm_mday = mday;
-    tm.tm_mon = month;
-    tm.tm_year = year;
-    tm.tm_hour = hour;
-    tm.tm_min = min;
-    tm.tm_sec = sec;
-  }
-
-  if (tm.tm_year > 1900) {
-    tm.tm_year -= 1900;
-  } else if (tm.tm_year < 70) {
-    tm.tm_year += 100;
-  }
-
-  // Set Daylight Saving Time field
-  current_time = time(NULL);
-  tmp = localtime(&current_time);
-  tm.tm_isdst = tmp->tm_isdst;
-
-  return mktime(&tm);
-}
-
-// Protect against directory disclosure attack by removing '..',
-// excessive '/' and '\' characters
-static void remove_double_dots_and_double_slashes(char *s) {
-  char *p = s;
-
-  while (*s != '\0') {
-    *p++ = *s++;
-    if (s[-1] == '/' || s[-1] == '\\') {
-      // Skip all following slashes and backslashes
-      while (*s == '/' || *s == '\\') {
-        s++;
-      }
-
-      // Skip all double-dots
-      while (*s == '.' && s[1] == '.') {
-        s += 2;
-      }
-    }
-  }
-  *p = '\0';
-}
-
-static const struct {
-  const char *extension;
-  size_t ext_len;
-  const char *mime_type;
-  size_t mime_type_len;
-} builtin_mime_types[] = {
-  {".html", 5, "text/html",   9},
-  {".htm", 4, "text/html",   9},
-  {".shtm", 5, "text/html",   9},
-  {".shtml", 6, "text/html",   9},
-  {".css", 4, "text/css",   8},
-  {".js",  3, "application/x-javascript", 24},
-  {".ico", 4, "image/x-icon",   12},
-  {".gif", 4, "image/gif",   9},
-  {".jpg", 4, "image/jpeg",   10},
-  {".jpeg", 5, "image/jpeg",   10},
-  {".png", 4, "image/png",   9},
-  {".svg", 4, "image/svg+xml",  13},
-  {".torrent", 8, "application/x-bittorrent", 24},
-  {".wav", 4, "audio/x-wav",   11},
-  {".mp3", 4, "audio/x-mp3",   11},
-  {".mid", 4, "audio/mid",   9},
-  {".m3u", 4, "audio/x-mpegurl",  15},
-  {".ram", 4, "audio/x-pn-realaudio",  20},
-  {".xml", 4, "text/xml",   8},
-  {".xslt", 5, "application/xml",  15},
-  {".ra",  3, "audio/x-pn-realaudio",  20},
-  {".doc", 4, "application/msword",  19},
-  {".exe", 4, "application/octet-stream", 24},
-  {".zip", 4, "application/x-zip-compressed", 28},
-  {".xls", 4, "application/excel",  17},
-  {".tgz", 4, "application/x-tar-gz",  20},
-  {".tar", 4, "application/x-tar",  17},
-  {".gz",  3, "application/x-gunzip",  20},
-  {".arj", 4, "application/x-arj-compressed", 28},
-  {".rar", 4, "application/x-arj-compressed", 28},
-  {".rtf", 4, "application/rtf",  15},
-  {".pdf", 4, "application/pdf",  15},
-  {".swf", 4, "application/x-shockwave-flash",29},
-  {".mpg", 4, "video/mpeg",   10},
-  {".mpeg", 5, "video/mpeg",   10},
-  {".asf", 4, "video/x-ms-asf",  14},
-  {".avi", 4, "video/x-msvideo",  15},
-  {".bmp", 4, "image/bmp",   9},
-  {NULL,  0, NULL,    0}
-};
-
-// Look at the "path" extension and figure what mime type it has.
-// Store mime type in the vector.
-static void get_mime_type(struct mg_context *ctx, const char *path,
-                          struct vec *vec) {
-  struct vec ext_vec, mime_vec;
-  const char *list, *ext;
-  size_t i, path_len;
-
-  path_len = strlen(path);
-
-  // Scan user-defined mime types first, in case user wants to
-  // override default mime types.
-  list = ctx->config[EXTRA_MIME_TYPES];
-  while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
-    // ext now points to the path suffix
-    ext = path + path_len - ext_vec.len;
-    if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
-      *vec = mime_vec;
-      return;
-    }
-  }
-
-  // Now scan built-in mime types
-  for (i = 0; builtin_mime_types[i].extension != NULL; i++) {
-    ext = path + (path_len - builtin_mime_types[i].ext_len);
-    if (path_len > builtin_mime_types[i].ext_len &&
-        mg_strcasecmp(ext, builtin_mime_types[i].extension) == 0) {
-      vec->ptr = builtin_mime_types[i].mime_type;
-      vec->len = builtin_mime_types[i].mime_type_len;
-      return;
-    }
-  }
-
-  // Nothing found. Fall back to "text/plain"
-  vec->ptr = "text/plain";
-  vec->len = 10;
-}
-
-#ifndef HAVE_MD5
-typedef struct MD5Context {
-  uint32_t buf[4];
-  uint32_t bits[2];
-  unsigned char in[64];
-} MD5_CTX;
-
-#if __BYTE_ORDER == 1234
-#define byteReverse(buf, len) // Do nothing
-#else
-static void byteReverse(unsigned char *buf, unsigned longs) {
-  uint32_t t;
-  do {
-    t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
-      ((unsigned) buf[1] << 8 | buf[0]);
-    *(uint32_t *) buf = t;
-    buf += 4;
-  } while (--longs);
-}
-#endif
-
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-#define MD5STEP(f, w, x, y, z, data, s) \
-  ( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )
-
-// Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
-// initialization constants.
-static void MD5Init(MD5_CTX *ctx) {
-  ctx->buf[0] = 0x67452301;
-  ctx->buf[1] = 0xefcdab89;
-  ctx->buf[2] = 0x98badcfe;
-  ctx->buf[3] = 0x10325476;
-
-  ctx->bits[0] = 0;
-  ctx->bits[1] = 0;
-}
-
-static void MD5Transform(uint32_t buf[4], uint32_t const in[16]) {
-  register uint32_t a, b, c, d;
-
-  a = buf[0];
-  b = buf[1];
-  c = buf[2];
-  d = buf[3];
-
-  MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
-  MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
-  MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
-  MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
-  MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
-  MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
-  MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
-  MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
-  MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
-  MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
-  MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
-  MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
-  MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
-  MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
-  MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
-  MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
-  MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
-  MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
-  MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
-  MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
-  MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
-  MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
-  MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
-  MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
-  MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
-  MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
-  MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
-  MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
-  MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
-  MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
-  MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
-  MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
-  MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
-  MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
-  MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
-  MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
-  MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
-  MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
-  MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
-  MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
-  MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
-  MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
-  MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
-  MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
-  MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
-  MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
-  MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
-  MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
-  MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
-  MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
-  MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
-  MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
-  MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
-  MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
-  MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
-  MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
-  MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
-  MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
-  MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
-  MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
-  MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
-  MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
-  MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
-  MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
-  buf[0] += a;
-  buf[1] += b;
-  buf[2] += c;
-  buf[3] += d;
-}
-
-static void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) {
-  uint32_t t;
-
-  t = ctx->bits[0];
-  if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
-    ctx->bits[1]++;
-  ctx->bits[1] += len >> 29;
-
-  t = (t >> 3) & 0x3f;
-
-  if (t) {
-    unsigned char *p = (unsigned char *) ctx->in + t;
-
-    t = 64 - t;
-    if (len < t) {
-      memcpy(p, buf, len);
-      return;
-    }
-    memcpy(p, buf, t);
-    byteReverse(ctx->in, 16);
-    MD5Transform(ctx->buf, (uint32_t *) ctx->in);
-    buf += t;
-    len -= t;
-  }
-
-  while (len >= 64) {
-    memcpy(ctx->in, buf, 64);
-    byteReverse(ctx->in, 16);
-    MD5Transform(ctx->buf, (uint32_t *) ctx->in);
-    buf += 64;
-    len -= 64;
-  }
-
-  memcpy(ctx->in, buf, len);
-}
-
-static void MD5Final(unsigned char digest[16], MD5_CTX *ctx) {
-  unsigned count;
-  unsigned char *p;
-
-  count = (ctx->bits[0] >> 3) & 0x3F;
-
-  p = ctx->in + count;
-  *p++ = 0x80;
-  count = 64 - 1 - count;
-  if (count < 8) {
-    memset(p, 0, count);
-    byteReverse(ctx->in, 16);
-    MD5Transform(ctx->buf, (uint32_t *) ctx->in);
-    memset(ctx->in, 0, 56);
-  } else {
-    memset(p, 0, count - 8);
-  }
-  byteReverse(ctx->in, 14);
-
-  ((uint32_t *) ctx->in)[14] = ctx->bits[0];
-  ((uint32_t *) ctx->in)[15] = ctx->bits[1];
-
-  MD5Transform(ctx->buf, (uint32_t *) ctx->in);
-  byteReverse((unsigned char *) ctx->buf, 4);
-  memcpy(digest, ctx->buf, 16);
-  memset((char *) ctx, 0, sizeof(ctx));
-}
-#endif // !HAVE_MD5
-
-// Stringify binary data. Output buffer must be twice as big as input,
-// because each byte takes 2 bytes in string representation
-static void bin2str(char *to, const unsigned char *p, size_t len) {
-  static const char *hex = "0123456789abcdef";
-
-  for (; len--; p++) {
-    *to++ = hex[p[0] >> 4];
-    *to++ = hex[p[0] & 0x0f];
-  }
-  *to = '\0';
-}
-
-// Return stringified MD5 hash for list of vectors. Buffer must be 33 bytes.
-void mg_md5(char *buf, ...) {
-  unsigned char hash[16];
-  const char *p;
-  va_list ap;
-  MD5_CTX ctx;
-
-  MD5Init(&ctx);
-
-  va_start(ap, buf);
-  while ((p = va_arg(ap, const char *)) != NULL) {
-    MD5Update(&ctx, (unsigned char *) p, (int) strlen(p));
-  }
-  va_end(ap);
-
-  MD5Final(hash, &ctx);
-  bin2str(buf, hash, sizeof(hash));
-}
-
-// Check the user's password, return 1 if OK
-static int check_password(const char *method, const char *ha1, const char *uri,
-                          const char *nonce, const char *nc, const char *cnonce,
-                          const char *qop, const char *response) {
-  char ha2[32 + 1], expected_response[32 + 1];
-
-  // NOTE(lsm): due to a bug in MSIE, we do not compare the URI
-  // TODO(lsm): check for authentication timeout
-  if (// strcmp(dig->uri, c->ouri) != 0 ||
-      strlen(response) != 32
-      // || now - strtoul(dig->nonce, NULL, 10) > 3600
-      ) {
-    return 0;
-  }
-
-  mg_md5(ha2, method, ":", uri, NULL);
-  mg_md5(expected_response, ha1, ":", nonce, ":", nc,
-      ":", cnonce, ":", qop, ":", ha2, NULL);
-
-  return mg_strcasecmp(response, expected_response) == 0;
-}
-
-// Use the global passwords file, if specified by auth_gpass option,
-// or search for .htpasswd in the requested directory.
-static FILE *open_auth_file(struct mg_connection *conn, const char *path) {
-  struct mg_context *ctx = conn->ctx;
-  char name[PATH_MAX];
-  const char *p, *e;
-  struct mgstat st;
-  FILE *fp;
-
-  if (ctx->config[GLOBAL_PASSWORDS_FILE] != NULL) {
-    // Use global passwords file
-    fp =  mg_fopen(ctx->config[GLOBAL_PASSWORDS_FILE], "r");
-    if (fp == NULL)
-      cry(fc(ctx), "fopen(%s): %s",
-          ctx->config[GLOBAL_PASSWORDS_FILE], strerror(ERRNO));
-  } else if (!mg_stat(path, &st) && st.is_directory) {
-    (void) mg_snprintf(conn, name, sizeof(name), "%s%c%s",
-        path, DIRSEP, PASSWORDS_FILE_NAME);
-    fp = mg_fopen(name, "r");
-  } else {
-     // Try to find .htpasswd in requested directory.
-    for (p = path, e = p + strlen(p) - 1; e > p; e--)
-      if (IS_DIRSEP_CHAR(*e))
-        break;
-    (void) mg_snprintf(conn, name, sizeof(name), "%.*s%c%s",
-        (int) (e - p), p, DIRSEP, PASSWORDS_FILE_NAME);
-    fp = mg_fopen(name, "r");
-  }
-
-  return fp;
-}
-
-// Parsed Authorization header
-struct ah {
-  char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
-};
-
-static int parse_auth_header(struct mg_connection *conn, char *buf,
-                             size_t buf_size, struct ah *ah) {
-  char *name, *value, *s;
-  const char *auth_header;
-
-  if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
-      mg_strncasecmp(auth_header, "Digest ", 7) != 0) {
-    return 0;
-  }
-
-  // Make modifiable copy of the auth header
-  (void) mg_strlcpy(buf, auth_header + 7, buf_size);
-
-  s = buf;
-  (void) memset(ah, 0, sizeof(*ah));
-
-  // Gobble initial spaces
-  while (isspace(* (unsigned char *) s)) {
-    s++;
-  }
-
-  // Parse authorization header
-  for (;;) {
-    name = skip(&s, "=");
-    value = skip(&s, " ");
-
-    // Handle commas: Digest username="a", realm="b", ...
-    if (value[strlen(value) - 1] == ',') {
-      value[strlen(value) - 1] = '\0';
-    }
-
-    // Trim double quotes around values
-    if (*value == '"') {
-      value++;
-      value[strlen(value) - 1] = '\0';
-    } else if (*value == '\0') {
-      break;
-    }
-
-    if (!strcmp(name, "username")) {
-      ah->user = value;
-    } else if (!strcmp(name, "cnonce")) {
-      ah->cnonce = value;
-    } else if (!strcmp(name, "response")) {
-      ah->response = value;
-    } else if (!strcmp(name, "uri")) {
-      ah->uri = value;
-    } else if (!strcmp(name, "qop")) {
-      ah->qop = value;
-    } else if (!strcmp(name, "nc")) {
-      ah->nc = value;
-    } else if (!strcmp(name, "nonce")) {
-      ah->nonce = value;
-    }
-  }
-
-  // CGI needs it as REMOTE_USER
-  if (ah->user != NULL) {
-    conn->request_info.remote_user = mg_strdup(ah->user);
-  }
-
-  return 1;
-}
-
-// Authorize against the opened passwords file. Return 1 if authorized.
-static int authorize(struct mg_connection *conn, FILE *fp) {
-  struct ah ah;
-  char line[256], f_user[256], ha1[256], f_domain[256], buf[BUFSIZ];
-
-  if (!parse_auth_header(conn, buf, sizeof(buf), &ah)) {
-    return 0;
-  }
-
-  // Loop over passwords file
-  while (fgets(line, sizeof(line), fp) != NULL) {
-    if (sscanf(line, "%[^:]:%[^:]:%s", f_user, f_domain, ha1) != 3) {
-      continue;
-    }
-
-    if (!strcmp(ah.user, f_user) &&
-        !strcmp(conn->ctx->config[AUTHENTICATION_DOMAIN], f_domain))
-      return check_password(
-            conn->request_info.request_method,
-            ha1, ah.uri, ah.nonce, ah.nc, ah.cnonce, ah.qop,
-            ah.response);
-  }
-
-  return 0;
-}
-
-// Return 1 if request is authorised, 0 otherwise.
-static int check_authorization(struct mg_connection *conn, const char *path) {
-  FILE *fp;
-  char fname[PATH_MAX];
-  struct vec uri_vec, filename_vec;
-  const char *list;
-  int authorized;
-
-  fp = NULL;
-  authorized = 1;
-
-  list = conn->ctx->config[PROTECT_URI];
-  while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
-    if (!memcmp(conn->request_info.uri, uri_vec.ptr, uri_vec.len)) {
-      (void) mg_snprintf(conn, fname, sizeof(fname), "%.*s",
-          filename_vec.len, filename_vec.ptr);
-      if ((fp = mg_fopen(fname, "r")) == NULL) {
-        cry(conn, "%s: cannot open %s: %s", __func__, fname, strerror(errno));
-      }
-      break;
-    }
-  }
-
-  if (fp == NULL) {
-    fp = open_auth_file(conn, path);
-  }
-
-  if (fp != NULL) {
-    authorized = authorize(conn, fp);
-    (void) fclose(fp);
-  }
-
-  return authorized;
-}
-
-static void send_authorization_request(struct mg_connection *conn) {
-  conn->request_info.status_code = 401;
-  (void) mg_printf(conn,
-      "HTTP/1.1 401 Unauthorized\r\n"
-      "WWW-Authenticate: Digest qop=\"auth\", "
-      "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
-      conn->ctx->config[AUTHENTICATION_DOMAIN],
-      (unsigned long) time(NULL));
-}
-
-static int is_authorized_for_put(struct mg_connection *conn) {
-  FILE *fp;
-  int ret = 0;
-
-  fp = conn->ctx->config[PUT_DELETE_PASSWORDS_FILE] == NULL ? NULL :
-    mg_fopen(conn->ctx->config[PUT_DELETE_PASSWORDS_FILE], "r");
-
-  if (fp != NULL) {
-    ret = authorize(conn, fp);
-    (void) fclose(fp);
-  }
-
-  return ret;
-}
-
-int mg_modify_passwords_file(struct mg_context *ctx, const char *fname,
-                             const char *user, const char *pass) {
-  int found;
-  char line[512], u[512], d[512], ha1[33], tmp[PATH_MAX];
-  const char *domain;
-  FILE *fp, *fp2;
-
-  found = 0;
-  fp = fp2 = NULL;
-  domain = ctx->config[AUTHENTICATION_DOMAIN];
-
-  // Regard empty password as no password - remove user record.
-  if (pass[0] == '\0') {
-    pass = NULL;
-  }
-
-  (void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname);
-
-  // Create the file if does not exist
-  if ((fp = mg_fopen(fname, "a+")) != NULL) {
-    (void) fclose(fp);
-  }
-
-  // Open the given file and temporary file
-  if ((fp = mg_fopen(fname, "r")) == NULL) {
-    cry(fc(ctx), "Cannot open %s: %s", fname, strerror(errno));
-    return 0;
-  } else if ((fp2 = mg_fopen(tmp, "w+")) == NULL) {
-    cry(fc(ctx), "Cannot open %s: %s", tmp, strerror(errno));
-    return 0;
-  }
-
-  // Copy the stuff to temporary file
-  while (fgets(line, sizeof(line), fp) != NULL) {
-    if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2) {
-      continue;
-    }
-
-    if (!strcmp(u, user) && !strcmp(d, domain)) {
-      found++;
-      if (pass != NULL) {
-        mg_md5(ha1, user, ":", domain, ":", pass, NULL);
-        fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
-      }
-    } else {
-      (void) fprintf(fp2, "%s", line);
-    }
-  }
-
-  // If new user, just add it
-  if (!found && pass != NULL) {
-    mg_md5(ha1, user, ":", domain, ":", pass, NULL);
-    (void) fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
-  }
-
-  // Close files
-  (void) fclose(fp);
-  (void) fclose(fp2);
-
-  // Put the temp file in place of real file
-  (void) mg_remove(fname);
-  (void) mg_rename(tmp, fname);
-
-  return 1;
-}
-
-struct de {
-  struct mg_connection *conn;
-  char *file_name;
-  struct mgstat st;
-};
-
-static void url_encode(const char *src, char *dst, size_t dst_len) {
-  static const char *dont_escape = "._-$,;~()";
-  static const char *hex = "0123456789abcdef";
-  const char *end = dst + dst_len - 1;
-
-  for (; *src != '\0' && dst < end; src++, dst++) {
-    if (isalnum(*(unsigned char *) src) ||
-        strchr(dont_escape, * (unsigned char *) src) != NULL) {
-      *dst = *src;
-    } else if (dst + 2 < end) {
-      dst[0] = '%';
-      dst[1] = hex[(* (unsigned char *) src) >> 4];
-      dst[2] = hex[(* (unsigned char *) src) & 0xf];
-      dst += 2;
-    }
-  }
-
-  *dst = '\0';
-}
-
-static void print_dir_entry(struct de *de) {
-  char size[64], mod[64], href[PATH_MAX];
-
-  if (de->st.is_directory) {
-    (void) mg_snprintf(de->conn, size, sizeof(size), "%s", "[DIRECTORY]");
-  } else {
-     // We use (signed) cast below because MSVC 6 compiler cannot
-     // convert unsigned __int64 to double. Sigh.
-    if (de->st.size < 1024) {
-      (void) mg_snprintf(de->conn, size, sizeof(size),
-          "%lu", (unsigned long) de->st.size);
-    } else if (de->st.size < 1024 * 1024) {
-      (void) mg_snprintf(de->conn, size, sizeof(size),
-          "%.1fk", (double) de->st.size / 1024.0);
-    } else if (de->st.size < 1024 * 1024 * 1024) {
-      (void) mg_snprintf(de->conn, size, sizeof(size),
-          "%.1fM", (double) de->st.size / 1048576);
-    } else {
-      (void) mg_snprintf(de->conn, size, sizeof(size),
-          "%.1fG", (double) de->st.size / 1073741824);
-    }
-  }
-  (void) strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M", localtime(&de->st.mtime));
-  url_encode(de->file_name, href, sizeof(href));
-  de->conn->num_bytes_sent += mg_printf(de->conn,
-      "<tr><td><a href=\"%s%s%s\">%s%s</a></td>"
-      "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
-      de->conn->request_info.uri, href, de->st.is_directory ? "/" : "",
-      de->file_name, de->st.is_directory ? "/" : "", mod, size);
-}
-
-// This function is called from send_directory() and used for
-// sorting directory entries by size, or name, or modification time.
-// On windows, __cdecl specification is needed in case if project is built
-// with __stdcall convention. qsort always requires __cdels callback.
-static int WINCDECL compare_dir_entries(const void *p1, const void *p2) {
-  const struct de *a = (struct de *) p1, *b = (struct de *) p2;
-  const char *query_string = a->conn->request_info.query_string;
-  int cmp_result = 0;
-
-  if (query_string == NULL) {
-    query_string = "na";
-  }
-
-  if (a->st.is_directory && !b->st.is_directory) {
-    return -1;  // Always put directories on top
-  } else if (!a->st.is_directory && b->st.is_directory) {
-    return 1;   // Always put directories on top
-  } else if (*query_string == 'n') {
-    cmp_result = strcmp(a->file_name, b->file_name);
-  } else if (*query_string == 's') {
-    cmp_result = a->st.size == b->st.size ? 0 :
-      a->st.size > b->st.size ? 1 : -1;
-  } else if (*query_string == 'd') {
-    cmp_result = a->st.mtime == b->st.mtime ? 0 :
-      a->st.mtime > b->st.mtime ? 1 : -1;
-  }
-
-  return query_string[1] == 'd' ? -cmp_result : cmp_result;
-}
-
-static void handle_directory_request(struct mg_connection *conn,
-                                     const char *dir) {
-  struct dirent *dp;
-  DIR *dirp;
-  struct de *entries = NULL;
-  char path[PATH_MAX];
-  int i, sort_direction, num_entries = 0, arr_size = 128;
-
-  if ((dirp = opendir(dir)) == NULL) {
-    send_http_error(conn, 500, "Cannot open directory",
-        "Error: opendir(%s): %s", path, strerror(ERRNO));
-    return;
-  }
-
-  (void) mg_printf(conn, "%s",
-      "HTTP/1.1 200 OK\r\n"
-      "Connection: close\r\n"
-      "Content-Type: text/html; charset=utf-8\r\n\r\n");
-
-  sort_direction = conn->request_info.query_string != NULL &&
-    conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
-
-  while ((dp = readdir(dirp)) != NULL) {
-
-    // Do not show current dir and passwords file
-    if (!strcmp(dp->d_name, ".") ||
-        !strcmp(dp->d_name, "..") ||
-        !strcmp(dp->d_name, PASSWORDS_FILE_NAME))
-      continue;
-
-    if (entries == NULL || num_entries >= arr_size) {
-      arr_size *= 2;
-      entries = (struct de *) realloc(entries,
-          arr_size * sizeof(entries[0]));
-    }
-
-    if (entries == NULL) {
-      send_http_error(conn, 500, "Cannot open directory",
-          "%s", "Error: cannot allocate memory");
-      return;
-    }
-
-    mg_snprintf(conn, path, sizeof(path), "%s%c%s", dir, DIRSEP, dp->d_name);
-
-    // If we don't memset stat structure to zero, mtime will have
-    // garbage and strftime() will segfault later on in
-    // print_dir_entry(). memset is required only if mg_stat()
-    // fails. For more details, see
-    // http://code.google.com/p/mongoose/issues/detail?id=79
-    if (mg_stat(path, &entries[num_entries].st) != 0) {
-      memset(&entries[num_entries].st, 0, sizeof(entries[num_entries].st));
-    }
-
-    entries[num_entries].conn = conn;
-    entries[num_entries].file_name = mg_strdup(dp->d_name);
-    num_entries++;
-  }
-  (void) closedir(dirp);
-
-  conn->num_bytes_sent += mg_printf(conn,
-      "<html><head><title>Index of %s</title>"
-      "<style>th {text-align: left;}</style></head>"
-      "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
-      "<tr><th><a href=\"?n%c\">Name</a></th>"
-      "<th><a href=\"?d%c\">Modified</a></th>"
-      "<th><a href=\"?s%c\">Size</a></th></tr>"
-      "<tr><td colspan=\"3\"><hr></td></tr>",
-      conn->request_info.uri, conn->request_info.uri,
-      sort_direction, sort_direction, sort_direction);
-
-  // Print first entry - link to a parent directory
-  conn->num_bytes_sent += mg_printf(conn,
-      "<tr><td><a href=\"%s%s\">%s</a></td>"
-      "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
-      conn->request_info.uri, "..", "Parent directory", "-", "-");
-
-  // Sort and print directory entries
-  qsort(entries, num_entries, sizeof(entries[0]), compare_dir_entries);
-  for (i = 0; i < num_entries; i++) {
-    print_dir_entry(&entries[i]);
-    free(entries[i].file_name);
-  }
-  free(entries);
-
-  conn->num_bytes_sent += mg_printf(conn, "%s", "</table></body></html>");
-  conn->request_info.status_code = 200;
-}
-
-// Send len bytes from the opened file to the client.
-static void send_file_data(struct mg_connection *conn, FILE *fp, int64_t len) {
-  char buf[BUFSIZ];
-  int to_read, num_read, num_written;
-
-  while (len > 0) {
-    // Calculate how much to read from the file in the buffer
-    to_read = sizeof(buf);
-    if ((int64_t) to_read > len)
-      to_read = (int) len;
-
-    // Read from file, exit the loop on error
-    if ((num_read = fread(buf, 1, to_read, fp)) == 0)
-      break;
-
-    // Send read bytes to the client, exit the loop on error
-    if ((num_written = mg_write(conn, buf, num_read)) != num_read)
-      break;
-
-    // Both read and were successful, adjust counters
-    conn->num_bytes_sent += num_written;
-    len -= num_written;
-  }
-}
-
-static int parse_range_header(const char *header, int64_t *a, int64_t *b) {
-  return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b);
-}
-
-static void handle_file_request(struct mg_connection *conn, const char *path,
-                                struct mgstat *stp) {
-  char date[64], lm[64], etag[64], range[64];
-  const char *fmt = "%a, %d %b %Y %H:%M:%S %Z", *msg = "OK", *hdr;
-  time_t curtime = time(NULL);
-  int64_t cl, r1, r2;
-  struct vec mime_vec;
-  FILE *fp;
-  int n;
-
-  get_mime_type(conn->ctx, path, &mime_vec);
-  cl = stp->size;
-  conn->request_info.status_code = 200;
-  range[0] = '\0';
-
-  if ((fp = mg_fopen(path, "rb")) == NULL) {
-    send_http_error(conn, 500, http_500_error,
-        "fopen(%s): %s", path, strerror(ERRNO));
-    return;
-  }
-  set_close_on_exec(fileno(fp));
-
-  // If Range: header specified, act accordingly
-  r1 = r2 = 0;
-  hdr = mg_get_header(conn, "Range");
-  if (hdr != NULL && (n = parse_range_header(hdr, &r1, &r2)) > 0) {
-    conn->request_info.status_code = 206;
-    (void) fseeko(fp, (off_t) r1, SEEK_SET);
-    cl = n == 2 ? r2 - r1 + 1: cl - r1;
-    (void) mg_snprintf(conn, range, sizeof(range),
-        "Content-Range: bytes "
-        "%" INT64_FMT "-%"
-        INT64_FMT "/%" INT64_FMT "\r\n",
-        r1, r1 + cl - 1, stp->size);
-    msg = "Partial Content";
-  }
-
-  // Prepare Etag, Date, Last-Modified headers
-  (void) strftime(date, sizeof(date), fmt, localtime(&curtime));
-  (void) strftime(lm, sizeof(lm), fmt, localtime(&stp->mtime));
-  (void) mg_snprintf(conn, etag, sizeof(etag), "%lx.%lx",
-      (unsigned long) stp->mtime, (unsigned long) stp->size);
-
-  (void) mg_printf(conn,
-      "HTTP/1.1 %d %s\r\n"
-      "Date: %s\r\n"
-      "Last-Modified: %s\r\n"
-      "Etag: \"%s\"\r\n"
-      "Content-Type: %.*s\r\n"
-      "Content-Length: %" INT64_FMT "\r\n"
-      "Connection: %s\r\n"
-      "Accept-Ranges: bytes\r\n"
-      "%s\r\n",
-      conn->request_info.status_code, msg, date, lm, etag,
-      mime_vec.len, mime_vec.ptr, cl, suggest_connection_header(conn), range);
-
-  if (strcmp(conn->request_info.request_method, "HEAD") != 0) {
-    send_file_data(conn, fp, cl);
-  }
-  (void) fclose(fp);
-}
-
-// Parse HTTP headers from the given buffer, advance buffer to the point
-// where parsing stopped.
-static void parse_http_headers(char **buf, struct mg_request_info *ri) {
-  int i;
-
-  for (i = 0; i < (int) ARRAY_SIZE(ri->http_headers); i++) {
-    ri->http_headers[i].name = skip(buf, ": ");
-    ri->http_headers[i].value = skip(buf, "\r\n");
-    if (ri->http_headers[i].name[0] == '\0')
-      break;
-    ri->num_headers = i + 1;
-  }
-}
-
-static int is_valid_http_method(const char *method) {
-  return !strcmp(method, "GET") || !strcmp(method, "POST") ||
-    !strcmp(method, "HEAD") || !strcmp(method, "CONNECT") ||
-    !strcmp(method, "PUT") || !strcmp(method, "DELETE");
-}
-
-// Parse HTTP request, fill in mg_request_info structure.
-static int parse_http_request(char *buf, struct mg_request_info *ri) {
-  int status = 0;
-
-  // RFC says that all initial whitespaces should be ingored
-  while (*buf != '\0' && isspace(* (unsigned char *) buf)) {
-    buf++;
-  }
-
-  ri->request_method = skip(&buf, " ");
-  ri->uri = skip(&buf, " ");
-  ri->http_version = skip(&buf, "\r\n");
-
-  if (is_valid_http_method(ri->request_method) &&
-      strncmp(ri->http_version, "HTTP/", 5) == 0) {
-    ri->http_version += 5;   /* Skip "HTTP/" */
-    parse_http_headers(&buf, ri);
-    status = 1;
-  }
-
-  return status;
-}
-
-// Keep reading the input (either opened file descriptor fd, or socket sock,
-// or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
-// buffer (which marks the end of HTTP request). Buffer buf may already
-// have some data. The length of the data is stored in nread.
-// Upon every read operation, increase nread by the number of bytes read.
-static int read_request(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int bufsiz,
-                        int *nread) {
-  int n, request_len;
-
-  request_len = 0;
-  while (*nread < bufsiz && request_len == 0) {
-    n = pull(fp, sock, ssl, buf + *nread, bufsiz - *nread);
-    if (n <= 0) {
-      break;
-    } else {
-      *nread += n;
-      request_len = get_request_len(buf, *nread);
-    }
-  }
-
-  return request_len;
-}
-
-// For given directory path, substitute it to valid index file.
-// Return 0 if index file has been found, -1 if not found.
-// If the file is found, it's stats is returned in stp.
-static int substitute_index_file(struct mg_connection *conn, char *path,
-                                 size_t path_len, struct mgstat *stp) {
-  const char *list = conn->ctx->config[INDEX_FILES];
-  struct mgstat st;
-  struct vec filename_vec;
-  size_t n = strlen(path);
-  int found = 0;
-
-  // The 'path' given to us points to the directory. Remove all trailing
-  // directory separator characters from the end of the path, and
-  // then append single directory separator character.
-  while (n > 0 && IS_DIRSEP_CHAR(path[n - 1])) {
-    n--;
-  }
-  path[n] = DIRSEP;
-
-  // Traverse index files list. For each entry, append it to the given
-  // path and see if the file exists. If it exists, break the loop
-  while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
-
-    // Ignore too long entries that may overflow path buffer
-    if (filename_vec.len > path_len - n)
-      continue;
-
-    // Prepare full path to the index file
-    (void) mg_strlcpy(path + n + 1, filename_vec.ptr, filename_vec.len + 1);
-
-    // Does it exist?
-    if (mg_stat(path, &st) == 0) {
-      // Yes it does, break the loop
-      *stp = st;
-      found = 1;
-      break;
-    }
-  }
-
-  // If no index file exists, restore directory path
-  if (!found) {
-    path[n] = '\0';
-  }
-
-  return found;
-}
-
-// Return True if we should reply 304 Not Modified.
-static int is_not_modified(const struct mg_connection *conn,
-                           const struct mgstat *stp) {
-  const char *ims = mg_get_header(conn, "If-Modified-Since");
-  return ims != NULL && stp->mtime <= parse_date_string(ims);
-}
-
-static int forward_body_data(struct mg_connection *conn, FILE *fp,
-                             SOCKET sock, SSL *ssl) {
-  const char *expect, *buffered;
-  char buf[BUFSIZ];
-  int to_read, nread, buffered_len, success = 0;
-
-  expect = mg_get_header(conn, "Expect");
-  assert(fp != NULL);
-
-  if (conn->content_len == -1) {
-    send_http_error(conn, 411, "Length Required", "");
-  } else if (expect != NULL && mg_strcasecmp(expect, "100-continue")) {
-    send_http_error(conn, 417, "Expectation Failed", "");
-  } else {
-    if (expect != NULL) {
-      (void) mg_printf(conn, "%s", "HTTP/1.1 100 Continue\r\n\r\n");
-    }
-
-    buffered = conn->buf + conn->request_len;
-    buffered_len = conn->data_len - conn->request_len;
-    assert(buffered_len >= 0);
-    assert(conn->consumed_content == 0);
-
-    if (buffered_len > 0) {
-      if ((int64_t) buffered_len > conn->content_len) {
-        buffered_len = (int) conn->content_len;
-      }
-      push(fp, sock, ssl, buffered, (int64_t) buffered_len);
-      conn->consumed_content += buffered_len;
-    }
-
-    while (conn->consumed_content < conn->content_len) {
-      to_read = sizeof(buf);
-      if ((int64_t) to_read > conn->content_len - conn->consumed_content) {
-        to_read = (int) (conn->content_len - conn->consumed_content);
-      }
-      nread = pull(NULL, conn->client.sock, conn->ssl, buf, to_read);
-      if (nread <= 0 || push(fp, sock, ssl, buf, nread) != nread) {
-        break;
-      }
-      conn->consumed_content += nread;
-    }
-
-    if (conn->consumed_content == conn->content_len) {
-      success = 1;
-    }
-
-    // Each error code path in this function must send an error
-    if (!success) {
-      send_http_error(conn, 577, http_500_error, "");
-    }
-  }
-
-  return success;
-}
-
-#if !defined(NO_CGI)
-// This structure helps to create an environment for the spawned CGI program.
-// Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
-// last element must be NULL.
-// However, on Windows there is a requirement that all these VARIABLE=VALUE\0
-// strings must reside in a contiguous buffer. The end of the buffer is
-// marked by two '\0' characters.
-// We satisfy both worlds: we create an envp array (which is vars), all
-// entries are actually pointers inside buf.
-struct cgi_env_block {
-  struct mg_connection *conn;
-  char buf[CGI_ENVIRONMENT_SIZE]; // Environment buffer
-  int len; // Space taken
-  char *vars[MAX_CGI_ENVIR_VARS]; // char **envp
-  int nvars; // Number of variables
-};
-
-// Append VARIABLE=VALUE\0 string to the buffer, and add a respective
-// pointer into the vars array.
-static char *addenv(struct cgi_env_block *block, const char *fmt, ...) {
-  int n, space;
-  char *added;
-  va_list ap;
-
-  // Calculate how much space is left in the buffer
-  space = sizeof(block->buf) - block->len - 2;
-  assert(space >= 0);
-
-  // Make a pointer to the free space int the buffer
-  added = block->buf + block->len;
-
-  // Copy VARIABLE=VALUE\0 string into the free space
-  va_start(ap, fmt);
-  n = mg_vsnprintf(block->conn, added, (size_t) space, fmt, ap);
-  va_end(ap);
-
-  // Make sure we do not overflow buffer and the envp array
-  if (n > 0 && n < space &&
-      block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
-    // Append a pointer to the added string into the envp array
-    block->vars[block->nvars++] = block->buf + block->len;
-    // Bump up used length counter. Include \0 terminator
-    block->len += n + 1;
-  }
-
-  return added;
-}
-
-static void prepare_cgi_environment(struct mg_connection *conn,
-                                    const char *prog,
-                                    struct cgi_env_block *blk) {
-  const char *s, *slash;
-  struct vec var_vec, root;
-  char *p;
-  int  i;
-
-  blk->len = blk->nvars = 0;
-  blk->conn = conn;
-
-  get_document_root(conn, &root);
-
-  addenv(blk, "SERVER_NAME=%s", conn->ctx->config[AUTHENTICATION_DOMAIN]);
-  addenv(blk, "SERVER_ROOT=%.*s", root.len, root.ptr);
-  addenv(blk, "DOCUMENT_ROOT=%.*s", root.len, root.ptr);
-
-  // Prepare the environment block
-  addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
-  addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
-  addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP
-  addenv(blk, "SERVER_PORT=%d", ntohs(conn->client.lsa.u.sin.sin_port));
-  addenv(blk, "REQUEST_METHOD=%s", conn->request_info.request_method);
-  addenv(blk, "REMOTE_ADDR=%s",
-      inet_ntoa(conn->client.rsa.u.sin.sin_addr));
-  addenv(blk, "REMOTE_PORT=%d", conn->request_info.remote_port);
-  addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
-
-  // SCRIPT_NAME
-  assert(conn->request_info.uri[0] == '/');
-  slash = strrchr(conn->request_info.uri, '/');
-  if ((s = strrchr(prog, '/')) == NULL)
-    s = prog;
-  addenv(blk, "SCRIPT_NAME=%.*s%s", slash - conn->request_info.uri,
-         conn->request_info.uri, s);
-

[... 5362 lines stripped ...]


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