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attempt to fix or allow further detection of an elusive icc SIGSEGV

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This commit is contained in:
Yang Tse 2008-10-13 06:23:42 +00:00
parent c3a959cc37
commit d6114165d3
1 changed files with 25 additions and 13 deletions
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38
lib/hostip.c
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@ -726,6 +726,8 @@ void Curl_freeaddrinfo(Curl_addrinfo *ai)
/* walk over the list and free all entries */
while(ai) {
next = ai->ai_next;
if(ai->ai_addr)
free(ai->ai_addr);
if(ai->ai_canonname)
free(ai->ai_canonname);
free(ai);
@ -851,14 +853,15 @@ Curl_addrinfo *Curl_he2ai(const struct hostent *he, int port)
#ifdef CURLRES_IPV6
struct sockaddr_in6 *addr6;
#endif /* CURLRES_IPV6 */
CURLcode result = CURLE_OK;
int i;
struct in_addr *curr;
char *curr;
if(!he)
/* no input == no output! */
return NULL;
for(i=0; (curr = (struct in_addr *)he->h_addr_list[i]) != NULL; i++) {
for(i=0; (curr = he->h_addr_list[i]) != NULL; i++) {
int ss_size;
#ifdef CURLRES_IPV6
@ -868,10 +871,21 @@ Curl_addrinfo *Curl_he2ai(const struct hostent *he, int port)
#endif /* CURLRES_IPV6 */
ss_size = sizeof (struct sockaddr_in);
ai = calloc(1, sizeof(Curl_addrinfo) + ss_size);
if(!ai)
if((ai = calloc(1, sizeof(Curl_addrinfo))) == NULL) {
result = CURLE_OUT_OF_MEMORY;
break;
}
if((ai->ai_canonname = strdup(he->h_name)) == NULL) {
result = CURLE_OUT_OF_MEMORY;
free(ai);
break;
}
if((ai->ai_addr = calloc(1, ss_size)) == NULL) {
result = CURLE_OUT_OF_MEMORY;
free(ai->ai_canonname);
free(ai);
break;
}
if(!firstai)
/* store the pointer we want to return from this function */
@ -888,12 +902,6 @@ Curl_addrinfo *Curl_he2ai(const struct hostent *he, int port)
ai->ai_socktype = SOCK_STREAM;
ai->ai_addrlen = ss_size;
/* make the ai_addr point to the address immediately following this struct
and use that area to store the address */
ai->ai_addr = (struct sockaddr *) ((char*)ai + sizeof(Curl_addrinfo));
/* need to free this eventually */
ai->ai_canonname = strdup(he->h_name);
/* leave the rest of the struct filled with zero */
@ -901,7 +909,7 @@ Curl_addrinfo *Curl_he2ai(const struct hostent *he, int port)
case AF_INET:
addr = (struct sockaddr_in *)ai->ai_addr; /* storage area for this info */
memcpy((char *)&(addr->sin_addr), curr, sizeof(struct in_addr));
memcpy(&addr->sin_addr, curr, sizeof(struct in_addr));
addr->sin_family = (unsigned short)(he->h_addrtype);
addr->sin_port = htons((unsigned short)port);
break;
@ -910,7 +918,7 @@ Curl_addrinfo *Curl_he2ai(const struct hostent *he, int port)
case AF_INET6:
addr6 = (struct sockaddr_in6 *)ai->ai_addr; /* storage area for this info */
memcpy((char *)&(addr6->sin6_addr), curr, sizeof(struct in6_addr));
memcpy(&addr6->sin6_addr, curr, sizeof(struct in6_addr));
addr6->sin6_family = (unsigned short)(he->h_addrtype);
addr6->sin6_port = htons((unsigned short)port);
break;
@ -919,6 +927,10 @@ Curl_addrinfo *Curl_he2ai(const struct hostent *he, int port)
prevai = ai;
}
if(result != CURLE_OK)
Curl_freeaddrinfo(firstai);
return firstai;
}