1 /* $NetBSD: getservent_r.c,v 1.5 2005/04/18 19:39:45 kleink Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #include <sys/types.h> 34 35 #if defined(LIBC_SCCS) && !defined(lint) 36 #if 0 37 static char sccsid[] = "@(#)getservent.c 8.1 (Berkeley) 6/4/93"; 38 #else 39 __RCSID("$NetBSD: getservent_r.c,v 1.5 2005/04/18 19:39:45 kleink Exp $"); 40 #endif 41 #endif /* LIBC_SCCS and not lint */ 42 43 #include <netdb.h> 44 #include <errno.h> 45 #include <stdio.h> 46 #include <string.h> 47 #include <stdlib.h> 48 #include <netinet/in.h> 49 50 #include "servent.h" 51 52 void 53 setservent_r(int f, struct servent_data *sd) 54 { 55 if (sd->fp == NULL) 56 sd->fp = fopen(_PATH_SERVICES, "r"); 57 else 58 rewind(sd->fp); 59 sd->stayopen |= f; 60 } 61 62 void 63 endservent_r(struct servent_data *sd) 64 { 65 if (sd->fp) { 66 (void)fclose(sd->fp); 67 sd->fp = NULL; 68 } 69 if (sd->aliases) { 70 free(sd->aliases); 71 sd->aliases = NULL; 72 sd->maxaliases = 0; 73 } 74 if (sd->line) { 75 free(sd->line); 76 sd->line = NULL; 77 } 78 sd->stayopen = 0; 79 } 80 81 struct servent * 82 getservent_r(struct servent *sp, struct servent_data *sd) 83 { 84 char *p, *cp, **q; 85 size_t i = 0; 86 int oerrno; 87 88 if (sd->fp == NULL && (sd->fp = fopen(_PATH_SERVICES, "r")) == NULL) 89 return NULL; 90 91 for (;;) { 92 if (sd->line) 93 free(sd->line); 94 // sd->line = fparseln(sd->fp, NULL, NULL, NULL, FPARSELN_UNESCALL); 95 fprintf(stderr, "*** FIX ME! getservent_r() is going to fail!!!\n"); 96 sd->line = NULL; 97 if (sd->line == NULL) 98 return NULL; 99 sp->s_name = p = sd->line; 100 p = strpbrk(p, " \t"); 101 if (p == NULL) 102 continue; 103 *p++ = '\0'; 104 while (*p == ' ' || *p == '\t') 105 p++; 106 cp = strpbrk(p, ",/"); 107 if (cp == NULL) 108 continue; 109 *cp++ = '\0'; 110 sp->s_port = htons((u_short)atoi(p)); 111 sp->s_proto = cp; 112 if (sd->aliases == NULL) { 113 sd->maxaliases = 10; 114 sd->aliases = malloc(sd->maxaliases * sizeof(char *)); 115 if (sd->aliases == NULL) { 116 oerrno = errno; 117 endservent_r(sd); 118 errno = oerrno; 119 return NULL; 120 } 121 } 122 q = sp->s_aliases = sd->aliases; 123 cp = strpbrk(cp, " \t"); 124 if (cp != NULL) 125 *cp++ = '\0'; 126 while (cp && *cp) { 127 if (*cp == ' ' || *cp == '\t') { 128 cp++; 129 continue; 130 } 131 if (i == sd->maxaliases - 2) { 132 sd->maxaliases *= 2; 133 q = realloc(q, 134 sd->maxaliases * sizeof(char *)); 135 if (q == NULL) { 136 oerrno = errno; 137 endservent_r(sd); 138 errno = oerrno; 139 return NULL; 140 } 141 sp->s_aliases = sd->aliases = q; 142 } 143 q[i++] = cp; 144 cp = strpbrk(cp, " \t"); 145 if (cp != NULL) 146 *cp++ = '\0'; 147 } 148 q[i] = NULL; 149 return sp; 150 } 151 } 152
