| 1 | /* |
| 2 | ** Copyright 2001 Double Precision, Inc. |
| 3 | ** See COPYING for distribution information. |
| 4 | */ |
| 5 | |
| 6 | #if HAVE_CONFIG_H |
| 7 | #include "config.h" |
| 8 | #endif |
| 9 | #include <sys/types.h> |
| 10 | #if HAVE_SYS_STAT_H |
| 11 | #include <sys/stat.h> |
| 12 | #endif |
| 13 | #if HAVE_FCNTL_H |
| 14 | #include <fcntl.h> |
| 15 | #endif |
| 16 | #if HAVE_UNISTD_H |
| 17 | #include <unistd.h> |
| 18 | #endif |
| 19 | #if TIME_WITH_SYS_TIME |
| 20 | #include <sys/time.h> |
| 21 | #include <time.h> |
| 22 | #else |
| 23 | #if HAVE_SYS_TIME_H |
| 24 | #include <sys/time.h> |
| 25 | #else |
| 26 | #include <time.h> |
| 27 | #endif |
| 28 | #endif |
| 29 | #if HAVE_MD5 |
| 30 | #include "md5/md5.h" |
| 31 | #endif |
| 32 | |
| 33 | #include <string.h> |
| 34 | #include <stdio.h> |
| 35 | #include <signal.h> |
| 36 | #include <stdlib.h> |
| 37 | #if HAVE_TERMIOS_H |
| 38 | #include <termios.h> |
| 39 | #endif |
| 40 | #if HAVE_CRYPT_H |
| 41 | #include <crypt.h> |
| 42 | #endif |
| 43 | |
| 44 | #if HAVE_CRYPT |
| 45 | #if NEED_CRYPT_PROTOTYPE |
| 46 | extern char *crypt(const char *, const char *); |
| 47 | #endif |
| 48 | #endif |
| 49 | |
| 50 | char userdb_hex64[]="./0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; |
| 51 | |
| 52 | #ifdef RANDOM |
| 53 | void userdb_get_random(char *buf, unsigned n) |
| 54 | { |
| 55 | int f=open(RANDOM, O_RDONLY); |
| 56 | int l; |
| 57 | |
| 58 | if (f < 0) |
| 59 | { |
| 60 | perror(RANDOM); |
| 61 | exit(1); |
| 62 | } |
| 63 | while (n) |
| 64 | { |
| 65 | l=read(f, buf, n); |
| 66 | if (l < 0) |
| 67 | { |
| 68 | perror("read"); |
| 69 | exit(1); |
| 70 | } |
| 71 | n -= l; |
| 72 | buf += l; |
| 73 | } |
| 74 | close(f); |
| 75 | } |
| 76 | #endif |
| 77 | |
| 78 | #if HAVE_MD5 |
| 79 | char *userdb_mkmd5pw(const char *buf) |
| 80 | { |
| 81 | int i; |
| 82 | char salt[9]; |
| 83 | |
| 84 | salt[8]=0; |
| 85 | #ifdef RANDOM |
| 86 | userdb_get_random(salt, 8); |
| 87 | for (i=0; i<8; i++) |
| 88 | salt[i] = userdb_hex64[salt[i] & 63 ]; |
| 89 | |
| 90 | #else |
| 91 | { |
| 92 | |
| 93 | struct { |
| 94 | #if HAVE_GETTIMEOFDAY |
| 95 | struct timeval tv; |
| 96 | #else |
| 97 | time_t tv; |
| 98 | #endif |
| 99 | pid_t p; |
| 100 | } s; |
| 101 | |
| 102 | MD5_DIGEST d; |
| 103 | #if HAVE_GETTIMEOFDAY |
| 104 | struct timezone tz; |
| 105 | |
| 106 | gettimeofday(&s.tv, &tz); |
| 107 | #else |
| 108 | time(&s.tv); |
| 109 | #endif |
| 110 | s.p=getpid(); |
| 111 | |
| 112 | md5_digest(&s, sizeof(s), d); |
| 113 | for (i=0; i<8; i++) |
| 114 | salt[i]=userdb_hex64[ ((unsigned char *)d)[i] ]; |
| 115 | } |
| 116 | #endif |
| 117 | return (md5_crypt(buf, salt)); |
| 118 | } |
| 119 | #endif |