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pipewire: impl-module: limit module search depth

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Limit the depth of the recursive search done by `find_module()`
to a sensible amount (at the moment: 8).
This commit is contained in:
Barnabás Pőcze 2021-06-03 16:34:05 +02:00
parent a8428a57b1
commit 576513583b
1 changed files with 7 additions and 5 deletions
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12
src/pipewire/impl-module.c
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@ -51,7 +51,7 @@ struct impl {
/** \endcond */
static char *find_module(const char *path, const char *name)
static char *find_module(const char *path, const char *name, int level)
{
char *filename;
struct dirent *entry;
@ -72,6 +72,8 @@ static char *find_module(const char *path, const char *name)
filename = NULL;
/* now recurse down in subdirectories and look for it there */
if (level <= 0)
return NULL;
dir = opendir(path);
if (dir == NULL) {
@ -91,9 +93,9 @@ static char *find_module(const char *path, const char *name)
if (newpath == NULL)
break;
if (stat(newpath, &s) == 0 && S_ISDIR(s.st_mode)) {
filename = find_module(newpath, name);
}
if (stat(newpath, &s) == 0 && S_ISDIR(s.st_mode))
filename = find_module(newpath, name, level - 1);
free(newpath);
if (filename != NULL)
@ -176,7 +178,7 @@ pw_context_load_module(struct pw_context *context,
pw_log_debug("PIPEWIRE_MODULE_DIR set to: %s", module_dir);
}
filename = find_module(module_dir, name);
filename = find_module(module_dir, name, 8);
if (filename == NULL)
goto error_not_found;