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failf: use private buffer, don't clobber receive buffer

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This commit is contained in:
Daniel Stenberg 2017-04-25 00:50:21 +02:00
parent b8191e975f
commit f2fadf490f
1 changed files with 7 additions and 8 deletions
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15
lib/sendf.c
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@ -243,21 +243,20 @@ void Curl_failf(struct Curl_easy *data, const char *fmt, ...)
{
va_list ap;
size_t len;
char error[CURL_ERROR_SIZE + 2];
va_start(ap, fmt);
vsnprintf(data->state.buffer, BUFSIZE, fmt, ap);
vsnprintf(error, CURL_ERROR_SIZE, fmt, ap);
len = strlen(error);
if(data->set.errorbuffer && !data->state.errorbuf) {
snprintf(data->set.errorbuffer, CURL_ERROR_SIZE, "%s", data->state.buffer);
strcpy(data->set.errorbuffer, error);
data->state.errorbuf = TRUE; /* wrote error string */
}
if(data->set.verbose) {
len = strlen(data->state.buffer);
if(len < BUFSIZE - 1) {
data->state.buffer[len] = '\n';
data->state.buffer[++len] = '\0';
}
Curl_debug(data, CURLINFO_TEXT, data->state.buffer, len, NULL);
error[len] = '\n';
error[++len] = '\0';
Curl_debug(data, CURLINFO_TEXT, error, len, NULL);
}
va_end(ap);