Move xgetpwuid() and xgetgrgid() into xwrap.c

2 files changed, 16 insertions, 0 deletions

diff --git a/lib/lib.h b/lib/lib.h
index a0a1c316..e5d4a1d3 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -111,6 +111,8 @@ char *xrealpath(char *path);
 void xchdir(char *path);
 void xmkpath(char *path, int mode);
 void xsetuid(uid_t uid);
+struct passwd *xgetpwuid(uid_t uid);
+struct group *xgetgrgid(gid_t gid);
 char *xreadlink(char *name);
 long xparsetime(char *arg, long units, long *fraction);
 void xpidfile(char *name);
diff --git a/lib/xwrap.c b/lib/xwrap.c
index 98b4300e..71ea9209 100644
--- a/lib/xwrap.c
+++ b/lib/xwrap.c
@@ -399,6 +399,20 @@ void xsetuid(uid_t uid)
   if (setuid(uid)) perror_exit("xsetuid");
 }
 
+struct passwd *xgetpwuid(uid_t uid)
+{
+  struct passwd *pwd = getpwuid(uid);
+  if (!pwd) error_exit(NULL);
+  return pwd;
+}
+
+struct group *xgetgrgid(gid_t gid)
+{
+  struct group *group = getgrgid(gid);
+  if (!group) error_exit(NULL);
+  return group;
+}
+
 // This can return null (meaning file not found).  It just won't return null
 // for memory allocation reasons.
 char *xreadlink(char *name)