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-rw-r--r--pw/pw_group.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/pw/pw_group.c b/pw/pw_group.c
index 391e477..b20ce88 100644
--- a/pw/pw_group.c
+++ b/pw/pw_group.c
@@ -51,6 +51,7 @@ int
pw_group(struct userconf * cnf, int mode, struct cargs * args)
{
int rc;
+ struct carg *a_newname = getarg(args, 'l');
struct carg *a_name = getarg(args, 'n');
struct carg *a_gid = getarg(args, 'g');
struct carg *arg;
@@ -66,6 +67,11 @@ pw_group(struct userconf * cnf, int mode, struct cargs * args)
NULL
};
+ if (a_gid != NULL) {
+ if (strspn(a_gid->val, "0123456789") != strlen(a_gid->val))
+ errx(EX_USAGE, "-g expects a number");
+ }
+
if (mode == M_LOCK || mode == M_UNLOCK)
errx(EX_USAGE, "'lock' command is not available for groups");
@@ -140,8 +146,8 @@ pw_group(struct userconf * cnf, int mode, struct cargs * args)
if (a_gid)
grp->gr_gid = (gid_t) atoi(a_gid->val);
- if ((arg = getarg(args, 'l')) != NULL)
- grp->gr_name = pw_checkname((u_char *)arg->val, 0);
+ if (a_newname != NULL)
+ grp->gr_name = pw_checkname((u_char *)a_newname->val, 0);
} else {
if (a_name == NULL) /* Required */
errx(EX_DATAERR, "group name required");
@@ -270,8 +276,10 @@ pw_group(struct userconf * cnf, int mode, struct cargs * args)
warn("group update");
return EX_IOERR;
}
+
+ arg = a_newname != NULL ? a_newname : a_name;
/* grp may have been invalidated */
- if ((grp = GETGRNAM(a_name->val)) == NULL)
+ if ((grp = GETGRNAM(arg->val)) == NULL)
errx(EX_SOFTWARE, "group disappeared during update");
pw_log(cnf, mode, W_GROUP, "%s(%ld)", grp->gr_name, (long) grp->gr_gid);