/* Translate UID to a login name or a stringified number,
with cache. */
-char *getuser(uid_t uid)
+char *getuser(uid_t uid, char *name, int len)
{
register struct userid *tail;
struct passwd *pwent;
P(mutex);
for (tail = user_alist; tail; tail = tail->next) {
if (tail->id.u == uid) {
- V(mutex);
- return tail->name;
+ goto uid_done;
}
}
tail = (struct userid *)malloc(sizeof (struct userid));
tail->id.u = uid;
#ifndef HAVE_WIN32
- if (pwent == 0 || strcmp(pwent->pw_name, "????????") == 0) {
+ if (pwent == NULL || strcmp(pwent->pw_name, "????????") == 0) {
sprintf(usernum_string, "%u", (uint32_t)uid);
tail->name = bstrdup(usernum_string);
} else {
/* Add to the head of the list, so most recently used is first. */
tail->next = user_alist;
user_alist = tail;
+
+uid_done:
+ bstrncpy(name, tail->name, len);
V(mutex);
- return tail->name;
+ return name;
}
void free_getuser_cache()
/* Translate GID to a group name or a stringified number,
with cache. */
-char *getgroup(gid_t gid)
+char *getgroup(gid_t gid, char *name, int len)
{
register struct userid *tail;
struct group *grent;
P(mutex);
for (tail = group_alist; tail; tail = tail->next) {
if (tail->id.g == gid) {
- V(mutex);
- return tail->name;
+ goto gid_done;
}
}
tail = (struct userid *)malloc(sizeof (struct userid));
tail->id.g = gid;
#ifndef HAVE_WIN32
- if (grent == 0 || strcmp(grent->gr_name, "????????") == 0) {
+ if (grent == NULL || strcmp(grent->gr_name, "????????") == 0) {
sprintf (groupnum_string, "%u", (uint32_t)gid);
tail->name = bstrdup(groupnum_string);
} else {
/* Add to the head of the list, so most recently used is first. */
tail->next = group_alist;
group_alist = tail;
+
+gid_done:
+ bstrncpy(name, tail->name, len);
V(mutex);
- return tail->name;
+ return name;
}
void free_getgroup_cache()