Fix send to properly wait while long transmits are in progress

[mirror_edk2.git] / StdLib / BsdSocketLib / getprotoent.c

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