Implement exec -user, -group, and -newer. Enable find in defconfig.

2 files changed, 9 insertions, 0 deletions

diff --git a/lib/lib.h b/lib/lib.h
index 521a8d6b..de5f5470 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -119,6 +119,7 @@ void xchroot(char *path);
 struct passwd *xgetpwuid(uid_t uid);
 struct group *xgetgrgid(gid_t gid);
 struct passwd *xgetpwnam(char *name);
+struct group *xgetgrnam(char *name);
 void xsetuser(struct passwd *pwd);
 char *xreadlink(char *name);
 long xparsetime(char *arg, long units, long *fraction);
diff --git a/lib/xwrap.c b/lib/xwrap.c
index 4d8ad711..c9d1876f 100644
--- a/lib/xwrap.c
+++ b/lib/xwrap.c
@@ -455,6 +455,14 @@ struct passwd *xgetpwnam(char *name)
   return up;
 }
 
+struct group *xgetgrnam(char *name)
+{
+  struct group *gr = getgrnam(name);
+
+  if (!gr) perror_exit("group '%s'", name);
+  return gr;
+}
+
 // setuid() can fail (for example, too many processes belonging to that user),
 // which opens a security hole if the process continues as the original user.