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-rw-r--r--libbb/procps.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/libbb/procps.c b/libbb/procps.c
index 52203ee9a..2581d03b2 100644
--- a/libbb/procps.c
+++ b/libbb/procps.c
@@ -35,6 +35,7 @@ void clear_username_cache(void)
clear_cache(&groupname);
}
+#if 0 /* more generic, but we don't need that yet */
/* Returns -N-1 if not found. */
/* cp->cache[N] is allocated and must be filled in this case */
static int get_cached(cache_t *cp, unsigned id)
@@ -48,25 +49,28 @@ static int get_cached(cache_t *cp, unsigned id)
cp->cache[i++].id = id;
return -i;
}
+#endif
+
+typedef char* ug_func(char *name, long uid, int bufsize);
+static char* get_cached(cache_t *cp, unsigned id, ug_func* fp)
+{
+ int i;
+ for (i = 0; i < cp->size; i++)
+ if (cp->cache[i].id == id)
+ return cp->cache[i].name;
+ i = cp->size++;
+ cp->cache = xrealloc(cp->cache, cp->size * sizeof(*cp->cache));
+ cp->cache[i].id = id;
+ fp(cp->cache[i].name, id, sizeof(cp->cache[i].name));
+ return cp->cache[i].name;
+}
const char* get_cached_username(uid_t uid)
{
- int i = get_cached(&username, uid);
- if (i < 0) {
- i = -i - 1;
- bb_getpwuid(username.cache[i].name, uid,
- sizeof(username.cache[i].name));
- }
- return username.cache[i].name;
+ return get_cached(&username, uid, bb_getpwuid);
}
-const char* get_cached_groupname(uid_t uid)
+const char* get_cached_groupname(gid_t gid)
{
- int i = get_cached(&groupname, uid);
- if (i < 0) {
- i = -i - 1;
- bb_getgrgid(groupname.cache[i].name, uid,
- sizeof(groupname.cache[i].name));
- }
- return username.cache[i].name;
+ return get_cached(&groupname, gid, bb_getgrgid);
}