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Make the "uid" and "gid" code better. Now it can detect invalid user

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names/numbers.

Reviewed by:	chris
This commit is contained in:
Brian Feldman 1999-09-03 18:18:46 +00:00
parent 77b3485b11
commit 1efcedf596
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=50851
1 changed files with 20 additions and 4 deletions
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24
sbin/ipfw/ipfw.c
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@ -1273,27 +1273,43 @@ add(ac,av)
while (ac) {
if (!strncmp(*av,"uid",strlen(*av))) {
struct passwd *pwd;
char *end;
uid_t uid;
rule.fw_flg |= IP_FW_F_UID;
ac--; av++;
if (!ac)
show_usage("``uid'' requires argument");
rule.fw_uid = (pwd = getpwnam(*av)) ? pwd->pw_uid
: strtoul(*av, NULL, 0);
uid = strtoul(*av, &end, 0);
if (*end == '\0')
pwd = getpwuid(uid);
else
pwd = getpwnam(*av);
if (pwd == NULL)
show_usage("uid \"%s\" is nonexistant", *av);
rule.fw_uid = pwd->pw_uid;
ac--; av++;
continue;
}
if (!strncmp(*av,"gid",strlen(*av))) {
struct group *grp;
char *end;
gid_t gid;
rule.fw_flg |= IP_FW_F_GID;
ac--; av++;
if (!ac)
show_usage("``gid'' requires argument");
rule.fw_gid = (grp = getgrnam(*av)) ? (gid_t)grp->gr_gid
: strtoul(*av, NULL, 0);
gid = strtoul(*av, &end, 0);
if (*end == '\0')
grp = getgrgid(gid);
else
grp = getgrnam(*av);
if (grp == NULL)
show_usage("gid \"%s\" is nonexistant", *av);
rule.fw_gid = grp->gr_gid;
ac--; av++;
continue;
}