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From Ralph Ritoch <rrit...@gmail.com>
Subject Re: apr_pstrdup(r->connection->pool, "http"); // returning 0?
Date Fri, 15 Nov 2013 12:26:43 GMT
This issue has been resolved.  The problem was revealed by the compiler
warnings...

./mod_pikevm.c:117: warning: implicit declaration of function ‘apr_pstrdup’

The solution was to add #include "apr_strings.h" to mod_pikevm.c

Best Regards,
  Ralph Ritoch


On Fri, Nov 15, 2013 at 7:04 PM, Ralph Ritoch <rritoch@gmail.com> wrote:

> Hi,
>
> Does anyone know why apr_pstrdup(r->connection->pool, "http"); would be
> returning 0x0?
>
> It is causing a segfault in the module I'm developing
>
> @
> https://github.com/rritoch/PikeVM/blob/master/root/boot/system-1.1/apache/src/mod_pikevm.c#L585
>
> Here is the relevant gdb output....
>
> 581         ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
> (gdb) n
> 585         uri->scheme = apr_pstrdup(r->connection->pool, "http");
> (gdb) p status
> No symbol "status" in current context.
> (gdb) p uri->scheme
> $1 = 0x0
> (gdb) p uri
> $2 = (apr_uri_t *) 0x7ffff832c198
> (gdb) p r->connection->pool
> $3 = (apr_pool_t *) 0x7ffff832b4e8
> (gdb) n
> 588         ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
> (gdb) p uri->scheme
> $4 = 0x0(gdb) s
> ap_log_error (file=0x7fffed888a0a "./mod_pikevm.c", line=588, level=7,
>     status=0, s=0x7ffff8212880, fmt=0x7fffed888b6e "pikevm: %s: Scheme set
> %s")
>     at /usr/src/debug/httpd-2.2.15/server/log.c:711
> 711     {
> (gdb) n
> 714         va_start(args, fmt);
> (gdb) n
> 715         log_error_core(file, line, level, status, s, NULL, NULL, NULL,
> fmt, args);
> (gdb) n
> 714         va_start(args, fmt);
> (gdb) n
> 715         log_error_core(file, line, level, status, s, NULL, NULL, NULL,
> fmt, args);
> (gdb) n
> 714         va_start(args, fmt);
> (gdb) n
> 715         log_error_core(file, line, level, status, s, NULL, NULL, NULL,
> fmt, args);
> (gdb) n
>
> Program received signal SIGSEGV, Segmentation fault.
> __strlen_sse2 () at ../sysdeps/x86_64/strlen.S:32
> 32              movdqu  (%rdi), %xmm1
> (gdb)
>
>
>
> Any assistance that you can provide would be appreciated.
>
> Best Regards,
>     Ralph Ritoch
>
>
>
>

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