moparisthebest/curl
1
0
Fork 0
mirror of https://github.com/moparisthebest/curl synced 2024-12-21 23:58:49 -05:00
Code Issues Releases Wiki Activity

examples/getinmemory.c: abort the transfer if not enough memory

Browse Source 
No more use exit(3) but instead tell libcurl that no byte has been
written to let it return a `CURLE_WRITE_ERROR`. In addition, check
curl easy handle return code.
This commit is contained in:
Cédric Deltheil 2013-02-24 18:17:30 +01:00 committed by Daniel Stenberg
parent cb07bca689
commit 6645d2ae8f
1 changed files with 24 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
docs/examples/getinmemory.c
View File

@ -42,10 +42,10 @@ WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
mem->memory = realloc(mem->memory, mem->size + realsize + 1);
if (mem->memory == NULL) {
if(mem->memory == NULL) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
exit(EXIT_FAILURE);
return 0;
}
memcpy(&(mem->memory[mem->size]), contents, realsize);
@ -59,6 +59,7 @@ WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
int main(void)
{
CURL *curl_handle;
CURLcode res;
struct MemoryStruct chunk;
@ -84,24 +85,31 @@ int main(void)
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
/* get it! */
curl_easy_perform(curl_handle);
res = curl_easy_perform(curl_handle);
/* check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
else {
/*
* Now, our chunk.memory points to a memory block that is chunk.size
* bytes big and contains the remote file.
*
* Do something nice with it!
*
* You should be aware of the fact that at this point we might have an
* allocated data block, and nothing has yet deallocated that data. So when
* you're done with it, you should free() it as a nice application.
*/
printf("%lu bytes retrieved\n", (long)chunk.size);
}
/* cleanup curl stuff */
curl_easy_cleanup(curl_handle);
/*
* Now, our chunk.memory points to a memory block that is chunk.size
* bytes big and contains the remote file.
*
* Do something nice with it!
*
* You should be aware of the fact that at this point we might have an
* allocated data block, and nothing has yet deallocated that data. So when
* you're done with it, you should free() it as a nice application.
*/
printf("%lu bytes retrieved\n", (long)chunk.size);
if(chunk.memory)
free(chunk.memory);