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fix unbounded write of sprintf

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Buffer write operations that do not control the length of data written
may overflow. Fix by replacing sprintf() with snprintf().
This commit is contained in:
Mingjie Shen
2024-03-23 22:03:02 -04:00
committed by Cameron Gutman
parent 014af67397
commit 274d3db34d
2 changed files with 5 additions and 5 deletions
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6
src/config.c
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@@ -411,11 +411,11 @@ void config_parse(int argc, char* argv[], PCONFIGURATION config) {
struct passwd *pw = getpwuid(getuid());
const char *dir;
if ((dir = getenv("XDG_CACHE_DIR")) != NULL)
sprintf(config->key_dir, "%s" MOONLIGHT_PATH, dir);
snprintf(config->key_dir, sizeof(config->key_dir), "%s" MOONLIGHT_PATH, dir);
else if ((dir = getenv("HOME")) != NULL)
sprintf(config->key_dir, "%s" DEFAULT_CACHE_DIR MOONLIGHT_PATH, dir);
snprintf(config->key_dir, sizeof(config->key_dir), "%s" DEFAULT_CACHE_DIR MOONLIGHT_PATH, dir);
else
sprintf(config->key_dir, "%s" DEFAULT_CACHE_DIR MOONLIGHT_PATH, pw->pw_dir);
snprintf(config->key_dir, sizeof(config->key_dir), "%s" DEFAULT_CACHE_DIR MOONLIGHT_PATH, pw->pw_dir);
}
if (config->stream.bitrate == -1) {