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authorwpaul <wpaul@FreeBSD.org>1995-11-04 19:07:27 +0000
committerwpaul <wpaul@FreeBSD.org>1995-11-04 19:07:27 +0000
commit346ab43d02955c00ee4d34bf243e660871d0500a (patch)
treeda8c30759bbe1a24d7b734ca381a4b2edf5f0a64 /lib/libc/net/getservent.c
parent2437134e80d0f8d6266ecef619b1b69901504e4a (diff)
downloadFreeBSD-src-346ab43d02955c00ee4d34bf243e660871d0500a.zip
FreeBSD-src-346ab43d02955c00ee4d34bf243e660871d0500a.tar.gz
Add NIS support to getservent(3) functions (getservbyport() and getservbyname()
both call getservent() to do most of the work, so we only need to modify this file to take care of everybody). Note that there is only one NIS services map (services.byname) even though there are getservbyname() and getservbyport() library functions.
Diffstat (limited to 'lib/libc/net/getservent.c')
-rw-r--r--lib/libc/net/getservent.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/libc/net/getservent.c b/lib/libc/net/getservent.c
index 6bee5d3..9fb47b6 100644
--- a/lib/libc/net/getservent.c
+++ b/lib/libc/net/getservent.c
@@ -41,6 +41,12 @@ static char sccsid[] = "@(#)getservent.c 8.1 (Berkeley) 6/4/93";
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
+#ifdef YP
+#include <rpc/rpc.h>
+#include <rpcsvc/yp_prot.h>
+#include <rpcsvc/ypclnt.h>
+static int serv_stepping_yp = 0;
+#endif
#define MAXALIASES 35
@@ -50,6 +56,54 @@ static struct servent serv;
static char *serv_aliases[MAXALIASES];
int _serv_stayopen;
+#ifdef YP
+static int
+_getypservent(line)
+ char *line;
+{
+ static char *key = NULL;
+ static int keylen;
+ static char *yp_domain = NULL;
+ char *lastkey, *result;
+ int resultlen;
+ int rv;
+
+ if(!yp_domain) {
+ if(yp_get_default_domain(&yp_domain))
+ return (0);
+ }
+
+ if (!serv_stepping_yp) {
+ if (key)
+ free(key);
+ if ((rv = yp_first(yp_domain, "services.byname", &key, &keylen,
+ &result, &resultlen))) {
+ free(result);
+ serv_stepping_yp = 0;
+ return(0);
+ }
+ serv_stepping_yp = 1;
+ } else {
+ lastkey = key;
+ rv = yp_next(yp_domain, "services.byname", key, keylen, &key,
+ &keylen, &result, &resultlen);
+ free(lastkey);
+ if (rv) {
+ serv_stepping_yp = 0;
+ return (0);
+ }
+ }
+
+ strncpy(line, result, BUFSIZ - 1);
+ /* getservent() expects lines terminated with \n -- make it happy */
+ strcat(line, "\n");
+
+ free(result);
+
+ return(1);
+}
+#endif
+
void
setservent(f)
int f;
@@ -77,11 +131,25 @@ getservent()
char *p;
register char *cp, **q;
+#ifdef YP
+ if (serv_stepping_yp && _getypservent(line)) {
+ p = (char *)&line;
+ goto unpack;
+ }
+tryagain:
+#endif
if (servf == NULL && (servf = fopen(_PATH_SERVICES, "r" )) == NULL)
return (NULL);
again:
if ((p = fgets(line, BUFSIZ, servf)) == NULL)
return (NULL);
+#ifdef YP
+ if (*p == '+') {
+ if (!_getypservent(&line))
+ goto tryagain;
+ }
+unpack:
+#endif
if (*p == '#')
goto again;
cp = strpbrk(p, "#\n");
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