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Re-add support for NIS netgroups (heavily modified from patch in PR)

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PR:		bin/112955
Submitted by:	A. Blake Cooper <blake@cluebie.net>
MFC after:	3 weeks
This commit is contained in:
Dag-Erling Smørgrav 2007-05-25 07:50:18 +00:00
parent 6abdc89958
commit ca2ddac328
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=169976
1 changed files with 22 additions and 4 deletions
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26
lib/libpam/modules/pam_login_access/login_access.c
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@ -20,6 +20,7 @@ __FBSDID("$FreeBSD$");
#include <ctype.h>
#include <errno.h>
#include <grp.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -143,11 +144,28 @@ list_match(char *list, const char *item,
/* netgroup_match - match group against machine or user */
static int
netgroup_match(const char *group __unused,
const char *machine __unused, const char *user __unused)
netgroup_match(const char *group, const char *machine, const char *user)
{
syslog(LOG_ERR, "NIS netgroup support not configured");
return 0;
char domain[1024];
unsigned int i;
if (getdomainname(domain, sizeof(domain)) != 0 || *domain == '\0') {
syslog(LOG_ERR, "NIS netgroup support disabled: no NIS domain");
return (NO);
}
/* getdomainname() does not reliably terminate the string */
for (i = 0; i < sizeof(domain); ++i)
if (domain[i] == '\0')
break;
if (i == sizeof(domain)) {
syslog(LOG_ERR, "NIS netgroup support disabled: invalid NIS domain");
return (NO);
}
if (innetgr(group, machine, user, domain) == 1)
return (YES);
return (NO);
}
/* user_match - match a username against one token */