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
userdb_get_random(char * buf,unsigned n)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
userdb_mkmd5pw(const char * buf)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
120