1 files changed, 121 insertions, 0 deletions
diff --git a/inet/getservent.c b/inet/getservent.c
new file mode 100644
index 0000000000..6bee5d3a8b
--- /dev/null
+++ b/inet/getservent.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)getservent.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define	MAXALIASES	35
+
+static FILE *servf = NULL;
+static char line[BUFSIZ+1];
+static struct servent serv;
+static char *serv_aliases[MAXALIASES];
+int _serv_stayopen;
+
+void
+setservent(f)
+	int f;
+{
+	if (servf == NULL)
+		servf = fopen(_PATH_SERVICES, "r" );
+	else
+		rewind(servf);
+	_serv_stayopen |= f;
+}
+
+void
+endservent()
+{
+	if (servf) {
+		fclose(servf);
+		servf = NULL;
+	}
+	_serv_stayopen = 0;
+}
+
+struct servent *
+getservent()
+{
+	char *p;
+	register char *cp, **q;
+
+	if (servf == NULL && (servf = fopen(_PATH_SERVICES, "r" )) == NULL)
+		return (NULL);
+again:
+	if ((p = fgets(line, BUFSIZ, servf)) == NULL)
+		return (NULL);
+	if (*p == '#')
+		goto again;
+	cp = strpbrk(p, "#\n");
+	if (cp == NULL)
+		goto again;
+	*cp = '\0';
+	serv.s_name = p;
+	p = strpbrk(p, " \t");
+	if (p == NULL)
+		goto again;
+	*p++ = '\0';
+	while (*p == ' ' || *p == '\t')
+		p++;
+	cp = strpbrk(p, ",/");
+	if (cp == NULL)
+		goto again;
+	*cp++ = '\0';
+	serv.s_port = htons((u_short)atoi(p));
+	serv.s_proto = cp;
+	q = serv.s_aliases = serv_aliases;
+	cp = strpbrk(cp, " \t");
+	if (cp != NULL)
+		*cp++ = '\0';
+	while (cp && *cp) {
+		if (*cp == ' ' || *cp == '\t') {
+			cp++;
+			continue;
+		}
+		if (q < &serv_aliases[MAXALIASES - 1])
+			*q++ = cp;
+		cp = strpbrk(cp, " \t");
+		if (cp != NULL)
+			*cp++ = '\0';
+	}
+	*q = NULL;
+	return (&serv);
+}