[df49c60] | 1 | /* |
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| 2 | * Sun RPC is a product of Sun Microsystems, Inc. and is provided for |
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| 3 | * unrestricted use provided that this legend is included on all tape |
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| 4 | * media and as a part of the software program in whole or part. Users |
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| 5 | * may copy or modify Sun RPC without charge, but are not authorized |
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| 6 | * to license or distribute it to anyone else except as part of a product or |
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| 7 | * program developed by the user or with the express written consent of |
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| 8 | * Sun Microsystems, Inc. |
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| 9 | * |
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| 10 | * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE |
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| 11 | * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR |
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| 12 | * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. |
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| 13 | * |
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| 14 | * Sun RPC is provided with no support and without any obligation on the |
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| 15 | * part of Sun Microsystems, Inc. to assist in its use, correction, |
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| 16 | * modification or enhancement. |
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| 17 | * |
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| 18 | * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE |
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| 19 | * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC |
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| 20 | * OR ANY PART THEREOF. |
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| 21 | * |
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| 22 | * In no event will Sun Microsystems, Inc. be liable for any lost revenue |
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| 23 | * or profits or other special, indirect and consequential damages, even if |
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| 24 | * Sun has been advised of the possibility of such damages. |
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| 25 | * |
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| 26 | * Sun Microsystems, Inc. |
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| 27 | * 2550 Garcia Avenue |
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| 28 | * Mountain View, California 94043 |
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| 29 | */ |
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| 30 | #if !defined(lint) && defined(SCCSIDS) |
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| 31 | static char sccsid[] = "@(#)publickey.c 1.10 91/03/11 Copyr 1986 Sun Micro"; |
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| 32 | #endif |
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| 33 | |
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| 34 | /* |
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| 35 | * publickey.c |
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| 36 | * Copyright (C) 1986, Sun Microsystems, Inc. |
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| 37 | */ |
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| 38 | |
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| 39 | /* |
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| 40 | * Public key lookup routines |
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| 41 | */ |
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| 42 | #include <stdio.h> |
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| 43 | #include <pwd.h> |
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| 44 | #include <rpc/rpc.h> |
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| 45 | #include <rpc/key_prot.h> |
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| 46 | #include <rpcsvc/yp_prot.h> |
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| 47 | #include <rpcsvc/ypclnt.h> |
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| 48 | #include <string.h> |
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| 49 | #include <stdlib.h> |
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| 50 | |
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| 51 | #define PKFILE "/etc/publickey" |
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| 52 | |
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| 53 | /* |
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| 54 | * Hack to let ypserv/rpc.nisd use AUTH_DES. |
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| 55 | */ |
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| 56 | int (*__getpublickey_LOCAL)() = 0; |
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| 57 | |
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| 58 | /* |
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| 59 | * Get somebody's public key |
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| 60 | */ |
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| 61 | int |
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| 62 | __getpublickey_real(netname, publickey) |
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| 63 | char *netname; |
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| 64 | char *publickey; |
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| 65 | { |
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| 66 | char lookup[3 * HEXKEYBYTES]; |
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| 67 | char *p; |
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| 68 | |
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| 69 | if (publickey == NULL) |
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| 70 | return (0); |
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| 71 | if (!getpublicandprivatekey(netname, lookup)) |
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| 72 | return (0); |
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| 73 | p = strchr(lookup, ':'); |
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| 74 | if (p == NULL) { |
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| 75 | return (0); |
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| 76 | } |
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| 77 | *p = '\0'; |
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| 78 | (void) strncpy(publickey, lookup, HEXKEYBYTES); |
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| 79 | publickey[HEXKEYBYTES] = '\0'; |
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| 80 | return (1); |
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| 81 | } |
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| 82 | |
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| 83 | /* |
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| 84 | * reads the file /etc/publickey looking for a + to optionally go to the |
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| 85 | * yellow pages |
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| 86 | */ |
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| 87 | |
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| 88 | int |
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| 89 | getpublicandprivatekey(key, ret) |
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| 90 | char *key; |
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| 91 | char *ret; |
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| 92 | { |
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| 93 | char buf[1024]; /* big enough */ |
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| 94 | char *res; |
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| 95 | FILE *fd; |
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| 96 | char *mkey; |
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| 97 | char *mval; |
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| 98 | |
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| 99 | fd = fopen(PKFILE, "r"); |
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| 100 | if (fd == (FILE *) 0) |
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| 101 | return (0); |
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| 102 | for (;;) { |
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| 103 | res = fgets(buf, 1024, fd); |
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| 104 | if (res == 0) { |
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| 105 | fclose(fd); |
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| 106 | return (0); |
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| 107 | } |
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| 108 | if (res[0] == '#') |
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| 109 | continue; |
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| 110 | else if (res[0] == '+') { |
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| 111 | #ifdef YP |
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| 112 | char *PKMAP = "publickey.byname"; |
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| 113 | char *lookup; |
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| 114 | char *domain; |
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| 115 | int err; |
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| 116 | int len; |
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| 117 | |
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| 118 | err = yp_get_default_domain(&domain); |
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| 119 | if (err) { |
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| 120 | continue; |
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| 121 | } |
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| 122 | lookup = NULL; |
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| 123 | err = yp_match(domain, PKMAP, key, strlen(key), &lookup, &len); |
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| 124 | if (err) { |
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| 125 | #ifdef DEBUG |
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| 126 | fprintf(stderr, "match failed error %d\n", err); |
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| 127 | #endif |
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| 128 | continue; |
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| 129 | } |
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| 130 | lookup[len] = 0; |
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| 131 | strcpy(ret, lookup); |
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| 132 | fclose(fd); |
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| 133 | free(lookup); |
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| 134 | return (2); |
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| 135 | #else /* YP */ |
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| 136 | #ifdef DEBUG |
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| 137 | fprintf(stderr, |
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| 138 | "Bad record in %s '+' -- NIS not supported in this library copy\n", PKFILE); |
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| 139 | #endif /* DEBUG */ |
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| 140 | continue; |
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| 141 | #endif /* YP */ |
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| 142 | } else { |
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| 143 | mkey = strtok(buf, "\t "); |
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| 144 | if (mkey == NULL) { |
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| 145 | fprintf(stderr, |
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| 146 | "Bad record in %s -- %s", PKFILE, buf); |
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| 147 | continue; |
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| 148 | } |
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| 149 | mval = strtok((char *)NULL, " \t#\n"); |
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| 150 | if (mval == NULL) { |
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| 151 | fprintf(stderr, |
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| 152 | "Bad record in %s val problem - %s", PKFILE, buf); |
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| 153 | continue; |
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| 154 | } |
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| 155 | if (strcmp(mkey, key) == 0) { |
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| 156 | strcpy(ret, mval); |
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| 157 | fclose(fd); |
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| 158 | return (1); |
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| 159 | } |
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| 160 | } |
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| 161 | } |
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| 162 | } |
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| 163 | |
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| 164 | int getpublickey(netname, publickey) |
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| 165 | char *netname; |
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| 166 | char *publickey; |
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| 167 | { |
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| 168 | if (__getpublickey_LOCAL != NULL) |
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| 169 | return(__getpublickey_LOCAL(netname, publickey)); |
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| 170 | else |
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| 171 | return(__getpublickey_real(netname, publickey)); |
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| 172 | } |
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