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33 * @(#)getservent.c 8.1 (Berkeley) 6/4/93
34 * $DragonFly: src/lib/libcr/net/Attic/getservent.c,v 1.5 2004/10/25 19:38:25 drhodus Exp $
37 #include <sys/types.h>
38 #include <sys/socket.h>
45 #include <rpcsvc/yp_prot.h>
46 #include <rpcsvc/ypclnt.h>
47 static int serv_stepping_yp = 0;
48 extern int _yp_check ( char ** );
54 static FILE *servf = NULL;
55 static char line[BUFSIZ+1];
56 static struct servent serv;
57 static char *serv_aliases[MAXALIASES];
61 char *___getservbyname_yp = NULL;
62 char *___getservbyproto_yp = NULL;
63 int ___getservbyport_yp = 0;
64 static char *yp_domain = NULL;
67 _getservbyport_yp(line)
72 char buf[YPMAXRECORD + 2];
75 snprintf(buf, sizeof(buf), "%d/%s", ntohs(___getservbyport_yp),
76 ___getservbyproto_yp);
78 ___getservbyport_yp = 0;
79 ___getservbyproto_yp = NULL;
82 if(yp_get_default_domain(&yp_domain))
87 * We have to be a little flexible here. Ideally you're supposed
88 * to have both a services.byname and a services.byport map, but
89 * some systems have only services.byname. FreeBSD cheats a little
90 * by putting the services.byport information in the same map as
91 * services.byname so that either case will work. We allow for both
92 * possibilities here: if there is no services.byport map, we try
93 * services.byname instead.
95 if ((rv = yp_match(yp_domain, "services.byport", buf, strlen(buf),
96 &result, &resultlen))) {
97 if (rv == YPERR_MAP) {
98 if (yp_match(yp_domain, "services.byname", buf,
99 strlen(buf), &result, &resultlen))
105 /* getservent() expects lines terminated with \n -- make it happy */
106 snprintf(line, BUFSIZ, "%.*s\n", resultlen, result);
113 _getservbyname_yp(line)
118 char buf[YPMAXRECORD + 2];
121 if(yp_get_default_domain(&yp_domain))
125 snprintf(buf, sizeof(buf), "%s/%s", ___getservbyname_yp,
126 ___getservbyproto_yp);
128 ___getservbyname_yp = 0;
129 ___getservbyproto_yp = NULL;
131 if (yp_match(yp_domain, "services.byname", buf, strlen(buf),
132 &result, &resultlen)) {
136 /* getservent() expects lines terminated with \n -- make it happy */
137 snprintf(line, BUFSIZ, "%.*s\n", resultlen, result);
147 static char *key = NULL;
149 char *lastkey, *result;
154 if(yp_get_default_domain(&yp_domain))
158 if (!serv_stepping_yp) {
161 if ((rv = yp_first(yp_domain, "services.byname", &key, &keylen,
162 &result, &resultlen))) {
163 serv_stepping_yp = 0;
166 serv_stepping_yp = 1;
169 rv = yp_next(yp_domain, "services.byname", key, keylen, &key,
170 &keylen, &result, &resultlen);
173 serv_stepping_yp = 0;
178 /* getservent() expects lines terminated with \n -- make it happy */
179 snprintf(line, BUFSIZ, "%.*s\n", resultlen, result);
192 servf = fopen(_PATH_SERVICES, "r" );
215 if (serv_stepping_yp && _getservent_yp(line)) {
221 if (servf == NULL && (servf = fopen(_PATH_SERVICES, "r" )) == NULL)
224 if ((p = fgets(line, BUFSIZ, servf)) == NULL)
227 if (*p == '+' && _yp_check(NULL)) {
228 if (___getservbyname_yp != NULL) {
229 if (!_getservbyname_yp(line))
232 else if (___getservbyport_yp != 0) {
233 if (!_getservbyport_yp(line))
236 else if (!_getservent_yp(line))
243 cp = strpbrk(p, "#\n");
248 p = strpbrk(p, " \t");
252 while (*p == ' ' || *p == '\t')
254 cp = strpbrk(p, ",/");
258 serv.s_port = htons((u_short)atoi(p));
260 q = serv.s_aliases = serv_aliases;
261 cp = strpbrk(cp, " \t");
265 if (*cp == ' ' || *cp == '\t') {
269 if (q < &serv_aliases[MAXALIASES - 1])
271 cp = strpbrk(cp, " \t");