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curl: fix memory leak in OOM in etags logic

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Detected by torture tests

Closes #4706
This commit is contained in:
Daniel Stenberg 2019-12-12 10:38:14 +01:00
parent 4940bb8568
commit 70a6541515
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 9 additions and 10 deletions
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19
src/tool_operate.c
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@ -926,25 +926,25 @@ static CURLcode single_transfer(struct GlobalConfig *global,
/* open file for reading: */
FILE *file = fopen(config->etag_compare_file, FOPEN_READTEXT);
if(!file) {
warnf(
config->global,
"Failed to open %s\n", config->etag_compare_file);
errorf(config->global,
"Failed to open %s\n", config->etag_compare_file);
result = CURLE_READ_ERROR;
break;
}
if((PARAM_OK == file2string(&etag_from_file, file)) &&
etag_from_file)
etag_from_file) {
header = aprintf("If-None-Match: \"%s\"", etag_from_file);
Curl_safefree(etag_from_file);
}
else
header = aprintf("If-None-Match: \"\"");
if(!header) {
warnf(
config->global,
"Failed to allocate memory for custom etag header\n");
if(file)
fclose(file);
errorf(config->global,
"Failed to allocate memory for custom etag header\n");
result = CURLE_OUT_OF_MEMORY;
break;
}
@ -953,7 +953,6 @@ static CURLcode single_transfer(struct GlobalConfig *global,
add2list(&config->headers, header);
Curl_safefree(header);
Curl_safefree(etag_from_file);
if(file) {
fclose(file);