romenskiy2012/curl
1
0
Fork 0
mirror of https://github.com/curl/curl.git synced 2026-06-17 00:05:39 +03:00
Code Issues Projects Releases Packages Wiki Activity

vtls: fix default SSL backend as a fallback

Browse source 
- Use build-time CURL_DEFAULT_SSL_BACKEND as a fallback when environment
  variable CURL_SSL_BACKEND contains a backend that is unavailable.

Prior to this change if CURL_SSL_BACKEND was set then
CURL_DEFAULT_SSL_BACKEND was ignored even if the backend of the former
was unavailable. In that case libcurl would instead select the first
available backend in the list of backends.

Bug: https://github.com/curl/curl/issues/16076#issuecomment-2617354254
Reported-by: Jeroen Ooms

Closes https://github.com/curl/curl/pull/16108
This commit is contained in:
Jay Satiro 2025-01-27 23:48:18 -05:00
parent 4f99efb192
commit e2ec7bf1b4
1 changed files with 16 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

26
lib/vtls/vtls.c
View file

@ -1113,8 +1113,8 @@ static size_t multissl_version(char *buffer, size_t size)
static int multissl_setup(const struct Curl_ssl *backend)
{
const char *env;
char *env_tmp;
int i;
char *env;
if(Curl_ssl != &Curl_ssl_multi)
return 1;
@ -1127,25 +1127,31 @@ static int multissl_setup(const struct Curl_ssl *backend)
if(!available_backends[0])
return 1;
env = env_tmp = curl_getenv("CURL_SSL_BACKEND");
#ifdef CURL_DEFAULT_SSL_BACKEND
if(!env)
env = CURL_DEFAULT_SSL_BACKEND;
#endif
env = curl_getenv("CURL_SSL_BACKEND");
if(env) {
int i;
for(i = 0; available_backends[i]; i++) {
if(strcasecompare(env, available_backends[i]->info.name)) {
Curl_ssl = available_backends[i];
free(env_tmp);
free(env);
return 0;
}
}
}
#ifdef CURL_DEFAULT_SSL_BACKEND
for(i = 0; available_backends[i]; i++) {
if(strcasecompare(CURL_DEFAULT_SSL_BACKEND,
available_backends[i]->info.name)) {
Curl_ssl = available_backends[i];
free(env);
return 0;
}
}
#endif
/* Fall back to first available backend */
Curl_ssl = available_backends[0];
free(env_tmp);
free(env);
return 0;
}