httpd-modules-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Simone Caruso <i...@simonecaruso.com>
Subject Re: I don't understand apr_array_push
Date Wed, 26 Jan 2011 15:53:43 GMT
On 26/01/2011 16:28, Simone Caruso wrote:
> Hi list,
>
> i can't understand the reason i can't read from an "apr array", my code is like this:
>
> //The 2 arrays, now working on reqc->aliases
> reqc->aliases = (apr_array_header_t *)apr_array_make(r->pool, 5, sizeof(alias_t));
> reqc->redirects = (apr_array_header_t *)apr_array_make(r->pool, 5, sizeof(alias_t));
>
> while (attributes[i]) {
> if (strcasecmp (attributes[i], "apacheServerName") == 0) {
> reqc->name = apr_pstrdup (r->pool, vals[i]);
> } else if (strcasecmp (attributes[i], "apacheServerAdmin") == 0) {
> reqc->admin = apr_pstrdup (r->pool, vals[i]);
> } else if (strcasecmp (attributes[i], "apacheDocumentRoot") == 0) {
> reqc->docroot = apr_pstrdup (r->pool, vals[i]);
> } else if (strcasecmp (attributes[i], "apacheScriptAlias") == 0) {
> cur = strstr(vals[i], " ");
> if(cur - vals[i] > 1 ){
> tmp = apr_palloc(r->pool, sizeof(char)*strlen(vals[i]));
> strcpy(tmp, vals[i]);
> tok = NULL;
> alias = apr_array_push(reqc->aliases);//HERE THE PUSH
> alias->src = apr_strtok((char *)tmp , " ", &tok);
> alias->dst = apr_strtok(NULL, " ", &tok);
> alias->iscgi = 1;
> isalias = 1;
> }else{
> ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, r,
> "[mod_vhost_ldap_ng.c]: Wrong apacheScriptAlias paramter: %s", vals[i]);
> }
> } else if (strcasecmp (attributes[i], "apacheAlias") == 0) {
> cur = strstr(vals[i], " ");
> if(cur - vals[i] > 1 ){
> tmp = apr_palloc(r->pool, sizeof(char)*strlen(vals[i]));
> strcpy(tmp, vals[i]);
> tok = NULL;
> alias = apr_array_push(reqc->aliases); //HERE THE PUSH
> alias->src = apr_strtok((char *)vals[i] , " ", &tok);
> alias->dst = apr_strtok(NULL, " ", &tok);
> alias->iscgi = 0;
> isalias = 1;
>
>
> Now i need to read the array (i read mod_alias.c):
> for(k = 0; k < reqc->aliases->nelts ; k++){
> alias = (alias_t *)&reqc->aliases->elts[k];
> isalias = alias_matches(r->uri, alias->src);
> if(isalias > 0)
> break;
> }
>
>
> I don't understand why, when k=2, alias structure is filled with wrong addresses:
>
> (gdb)
> 658 isalias = alias_matches(r->uri, alias->src);
> (gdb)
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007fc350e6784f in alias_matches (uri=0x94f820 "/",
> alias_fakename=0xda000000000094ff <Address 0xda000000000094ff out of bounds>)
>
>
> I tried a for like this without success (like mod_alias.c):
> for(k = 0; k < reqc->aliases->nelts -1 ; ++k){
>
>
> Any idea?
> thanks!
>
>

Ehm.. i solved the problem in this way:
alias_t *aliasp = (alias_t *)reqc->aliases->elts;
for(k = 0; k < reqc->aliases->nelts ; k++){
	alias = (alias_t *) &aliasp[k];
	isalias = alias_matches(r->uri, alias->src);
	if(isalias > 0)
		break;

Thanks anyway!

-- 
Simone Caruso
IT Consultant
+39 349 65 90 805
p.iva: 03045250838

Mime
View raw message