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Diffstat (limited to 'lib/libc/gen/getpwent.c')
-rw-r--r--lib/libc/gen/getpwent.c288
1 files changed, 278 insertions, 10 deletions
diff --git a/lib/libc/gen/getpwent.c b/lib/libc/gen/getpwent.c
index fe1b19cc2563..93a09ee52ff6 100644
--- a/lib/libc/gen/getpwent.c
+++ b/lib/libc/gen/getpwent.c
@@ -32,7 +32,8 @@
*/
#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)getpwent.c 5.21 (Berkeley) 3/14/91";
+/*static char *sccsid = "from: @(#)getpwent.c 5.21 (Berkeley) 3/14/91";*/
+static char *rcsid = "$Id: getpwent.c,v 1.4 1994/01/11 19:00:58 nate Exp $";
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
@@ -46,6 +47,12 @@ static char sccsid[] = "@(#)getpwent.c 5.21 (Berkeley) 3/14/91";
#include <stdlib.h>
#include <string.h>
#include <limits.h>
+#ifdef YP
+#include <stdio.h>
+#include <rpc/rpc.h>
+#include <rpcsvc/yp_prot.h>
+#include <rpcsvc/ypclnt.h>
+#endif
static struct passwd _pw_passwd; /* password structure */
static DB *_pw_db; /* password database */
@@ -53,21 +60,142 @@ static int _pw_keynum; /* key counter */
static int _pw_stayopen; /* keep fd's open */
static int __hashpw(), __initdb();
+#ifdef YP
+static char *__ypcurrent, *__ypdomain;
+static int __ypcurrentlen, __ypmode=0;
+static char line[1024];
+
+static int
+__ypparse(pw, s)
+struct passwd *pw;
+char *s;
+{
+ char *bp, *cp;
+
+ bp = s;
+ pw->pw_name = strsep(&bp, ":\n");
+ pw->pw_passwd = strsep(&bp, ":\n");
+ if (!(cp = strsep(&bp, ":\n")))
+ return 1;
+ pw->pw_uid = atoi(cp);
+ if (!(cp = strsep(&bp, ":\n")))
+ return 0;
+ pw->pw_gid = atoi(cp);
+ pw->pw_change = 0;
+ pw->pw_class = "";
+ pw->pw_gecos = strsep(&bp, ":\n");
+ pw->pw_dir = strsep(&bp, ":\n");
+ pw->pw_shell = strsep(&bp, ":\n");
+ pw->pw_expire = 0;
+ return 0;
+}
+#endif
+
struct passwd *
getpwent()
{
DBT key;
char bf[sizeof(_pw_keynum) + 1];
+#ifdef YP
+ char *bp, *cp;
+#endif
if (!_pw_db && !__initdb())
return((struct passwd *)NULL);
+#ifdef YP
+again:
+ if(__ypmode) {
+ char *key, *data;
+ int keylen, datalen;
+ int r;
+
+ if(!__ypdomain) {
+ if( _yp_check(&__ypdomain) == 0) {
+ __ypmode = 0;
+ goto again;
+ }
+ }
+ if(__ypcurrent) {
+ r = yp_next(__ypdomain, "passwd.byname",
+ __ypcurrent, __ypcurrentlen,
+ &key, &keylen, &data, &datalen);
+ free(__ypcurrent);
+ __ypcurrent = NULL;
+ /*printf("yp_next %d\n", r);*/
+ switch(r) {
+ case 0:
+ break;
+ default:
+ __ypcurrent = NULL;
+ __ypmode = 0;
+ free(data);
+ data = NULL;
+ goto again;
+ }
+ __ypcurrent = key;
+ __ypcurrentlen = keylen;
+ bcopy(data, line, datalen);
+ free(data);
+ data = NULL;
+ } else {
+ r = yp_first(__ypdomain, "passwd.byname",
+ &__ypcurrent, &__ypcurrentlen,
+ &data, &datalen);
+ /*printf("yp_first %d\n", r);*/
+ switch(r) {
+ case 0:
+ break;
+ default:
+ __ypmode = 0;
+ free(data);
+ goto again;
+ }
+ bcopy(data, line, datalen);
+ free(data);
+ data = NULL;
+ }
+ line[datalen] = '\0';
+ /*printf("line = %s\n", line);*/
+ bp = line;
+ goto parse;
+ }
+#endif
+
++_pw_keynum;
bf[0] = _PW_KEYBYNUM;
bcopy((char *)&_pw_keynum, bf + 1, sizeof(_pw_keynum));
key.data = (u_char *)bf;
key.size = sizeof(_pw_keynum) + 1;
- return(__hashpw(&key) ? &_pw_passwd : (struct passwd *)NULL);
+ if(__hashpw(&key)) {
+#ifdef YP
+ if(strcmp(_pw_passwd.pw_name, "+") == 0) {
+ __ypmode = 1;
+ goto again;
+ }
+#endif
+ return &_pw_passwd;
+ }
+ return (struct passwd *)NULL;
+
+#ifdef YP
+parse:
+ _pw_passwd.pw_name = strsep(&bp, ":\n");
+ _pw_passwd.pw_passwd = strsep(&bp, ":\n");
+ if (!(cp = strsep(&bp, ":\n")))
+ goto again;
+ _pw_passwd.pw_uid = atoi(cp);
+ if (!(cp = strsep(&bp, ":\n")))
+ goto again;
+ _pw_passwd.pw_gid = atoi(cp);
+ _pw_passwd.pw_change = 0;
+ _pw_passwd.pw_class = "";
+ _pw_passwd.pw_gecos = strsep(&bp, ":\n");
+ _pw_passwd.pw_dir = strsep(&bp, ":\n");
+ _pw_passwd.pw_shell = strsep(&bp, ":\n");
+ _pw_passwd.pw_expire = 0;
+ return &_pw_passwd;
+#endif
}
struct passwd *
@@ -81,6 +209,70 @@ getpwnam(name)
if (!_pw_db && !__initdb())
return((struct passwd *)NULL);
+#ifdef YP
+ bf[0] = _PW_KEYBYNAME;
+ len = strlen("+");
+ bcopy("+", bf + 1, MIN(len, UT_NAMESIZE));
+ key.data = (u_char *)bf;
+ key.size = len + 1;
+
+ /*
+ * If there is a user called "+", then YP is active. In that
+ * case we must sequence through the passwd file in sequence.
+ */
+ if ( __hashpw(&key)) {
+ int r;
+
+ for(_pw_keynum=1; _pw_keynum; _pw_keynum++) {
+ bf[0] = _PW_KEYBYNUM;
+ bcopy((char *)&_pw_keynum, bf + 1, sizeof(_pw_keynum));
+ key.data = (u_char *)bf;
+ key.size = sizeof(_pw_keynum) + 1;
+ if(__hashpw(&key) == 0)
+ break;
+ if(strcmp(_pw_passwd.pw_name, "+") == 0) {
+ if(!__ypdomain) {
+ if(_yp_check(&__ypdomain) == 0) {
+ continue;
+ }
+ }
+ if(__ypcurrent) {
+ free(__ypcurrent);
+ __ypcurrent = NULL;
+ }
+ r = yp_match(__ypdomain, "passwd.byname",
+ name, strlen(name),
+ &__ypcurrent, &__ypcurrentlen);
+ switch(r) {
+ case 0:
+ break;
+ default:
+ free(__ypcurrent);
+ __ypcurrent = NULL;
+ continue;
+ }
+ bcopy(__ypcurrent, line, __ypcurrentlen);
+ line[__ypcurrentlen] = '\0';
+ if(__ypparse(&_pw_passwd, line))
+ continue;
+ }
+ if( strcmp(_pw_passwd.pw_name, name) == 0) {
+ if (!_pw_stayopen) {
+ (void)(_pw_db->close)(_pw_db);
+ _pw_db = (DB *)NULL;
+ }
+ return &_pw_passwd;
+ }
+ continue;
+ }
+ if (!_pw_stayopen) {
+ (void)(_pw_db->close)(_pw_db);
+ _pw_db = (DB *)NULL;
+ }
+ return (struct passwd *)NULL;
+ }
+#endif /* YP */
+
bf[0] = _PW_KEYBYNAME;
len = strlen(name);
bcopy(name, bf + 1, MIN(len, UT_NAMESIZE));
@@ -104,12 +296,78 @@ getpwuid(uid)
#endif
{
DBT key;
- int keyuid, rval;
- char bf[sizeof(keyuid) + 1];
+ char bf[sizeof(_pw_keynum) + 1];
+ int keyuid, rval, len;
if (!_pw_db && !__initdb())
return((struct passwd *)NULL);
+#ifdef YP
+ bf[0] = _PW_KEYBYNAME;
+ len = strlen("+");
+ bcopy("+", bf + 1, MIN(len, UT_NAMESIZE));
+ key.data = (u_char *)bf;
+ key.size = len + 1;
+
+ /*
+ * If there is a user called "+", then YP is active. In that
+ * case we must sequence through the passwd file in sequence.
+ */
+ if ( __hashpw(&key)) {
+ char uidbuf[20];
+ int r;
+
+ for(_pw_keynum=1; _pw_keynum; _pw_keynum++) {
+ bf[0] = _PW_KEYBYNUM;
+ bcopy((char *)&_pw_keynum, bf + 1, sizeof(_pw_keynum));
+ key.data = (u_char *)bf;
+ key.size = sizeof(_pw_keynum) + 1;
+ if(__hashpw(&key) == 0)
+ break;
+ if(strcmp(_pw_passwd.pw_name, "+") == 0) {
+ if(!__ypdomain) {
+ if(_yp_check(&__ypdomain) == 0) {
+ continue;
+ }
+ }
+ if(__ypcurrent) {
+ free(__ypcurrent);
+ __ypcurrent = NULL;
+ }
+ sprintf(uidbuf, "%d", uid);
+ r = yp_match(__ypdomain, "passwd.byuid",
+ uidbuf, strlen(uidbuf),
+ &__ypcurrent, &__ypcurrentlen);
+ switch(r) {
+ case 0:
+ break;
+ default:
+ free(__ypcurrent);
+ __ypcurrent = NULL;
+ continue;
+ }
+ bcopy(__ypcurrent, line, __ypcurrentlen);
+ line[__ypcurrentlen] = '\0';
+ if(__ypparse(&_pw_passwd, line))
+ continue;
+ }
+ if( _pw_passwd.pw_uid == uid) {
+ if (!_pw_stayopen) {
+ (void)(_pw_db->close)(_pw_db);
+ _pw_db = (DB *)NULL;
+ }
+ return &_pw_passwd;
+ }
+ continue;
+ }
+ if (!_pw_stayopen) {
+ (void)(_pw_db->close)(_pw_db);
+ _pw_db = (DB *)NULL;
+ }
+ return (struct passwd *)NULL;
+ }
+#endif /* YP */
+
bf[0] = _PW_KEYBYUID;
keyuid = uid;
bcopy(&keyuid, bf + 1, sizeof(keyuid));
@@ -130,15 +388,19 @@ setpassent(stayopen)
{
_pw_keynum = 0;
_pw_stayopen = stayopen;
+#ifdef YP
+ __ypmode = 0;
+ if(__ypcurrent)
+ free(__ypcurrent);
+ __ypcurrent = NULL;
+#endif
return(1);
}
-int
+void
setpwent()
{
- _pw_keynum = 0;
- _pw_stayopen = 0;
- return(1);
+ (void) setpassent(0);
}
void
@@ -149,9 +411,15 @@ endpwent()
(void)(_pw_db->close)(_pw_db);
_pw_db = (DB *)NULL;
}
+#ifdef YP
+ __ypmode = 0;
+ if(__ypcurrent)
+ free(__ypcurrent);
+ __ypcurrent = NULL;
+#endif
}
-static
+static int
__initdb()
{
static int warned;
@@ -166,7 +434,7 @@ __initdb()
return(0);
}
-static
+static int
__hashpw(key)
DBT *key;
{
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