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Annotation of embedaddon/axTLS/httpd/htpasswd.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (c) Cameron Rich
                      3:  * 
                      4:  * All rights reserved.
                      5:  * 
                      6:  * Redistribution and use in source and binary forms, with or without 
                      7:  * modification, are permitted provided that the following conditions are met:
                      8:  *
                      9:  * * Redistributions of source code must retain the above copyright notice, 
                     10:  *   this list of conditions and the following disclaimer.
                     11:  * * Redistributions in binary form must reproduce the above copyright notice, 
                     12:  *   this list of conditions and the following disclaimer in the documentation 
                     13:  *   and/or other materials provided with the distribution.
                     14:  * * Neither the name of the axTLS project nor the names of its contributors 
                     15:  *   may be used to endorse or promote products derived from this software 
                     16:  *   without specific prior written permission.
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
                     19:  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
                     20:  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
                     21:  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
                     22:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
                     23:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
                     24:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
                     25:  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
                     26:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
                     27:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
                     28:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     29:  */
                     30: 
                     31: #include <stdio.h>
                     32: #include <string.h>
                     33: #include <stdlib.h>
                     34: #include "os_port.h"
                     35: #include "ssl.h"
                     36: 
                     37: int tfd;
                     38: 
                     39: void base64_encode(const uint8_t *in, size_t inlen, char *out, size_t outlen)
                     40: {
                     41:     static const char b64str[64] =
                     42:             "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
                     43: 
                     44:     while (inlen && outlen)
                     45:     {
                     46:         *out++ = b64str[(in[0] >> 2) & 0x3f];
                     47:         if (!--outlen)
                     48:             break;
                     49: 
                     50:         *out++ = b64str[((in[0] << 4)
                     51:                 + (--inlen ? in[1] >> 4 : 0)) & 0x3f];
                     52:         if (!--outlen)
                     53:             break;
                     54:         *out++ = (inlen
                     55:              ? b64str[((in[1] << 2)
                     56:                  + (--inlen ? in[2] >> 6 : 0))
                     57:              & 0x3f]
                     58:              : '=');
                     59:         if (!--outlen)
                     60:             break;
                     61:         *out++ = inlen ? b64str[in[2] & 0x3f] : '=';
                     62:         if (!--outlen)
                     63:             break;
                     64:         if (inlen)
                     65:             inlen--;
                     66:         if (inlen)
                     67:             in += 3;
                     68:     }
                     69: 
                     70:     if (outlen)
                     71:         *out = '\0';
                     72: }
                     73: 
                     74: static void usage(void) 
                     75: {
                     76:     fprintf(stderr,"Usage: htpasswd username\n");
                     77:     exit(1);
                     78: }
                     79: 
                     80: #ifdef WIN32
                     81: static char * getpass(const char *prompt)
                     82: {
                     83:     static char buf[127];
                     84:     FILE *fp = stdin;
                     85: 
                     86:     printf(prompt); TTY_FLUSH();
                     87: #if 0
                     88:     fp = fopen("/dev/tty", "w");
                     89:     if (fp == NULL) 
                     90:     {
                     91:         printf("null\n"); TTY_FLUSH();
                     92:         fp = stdin;
                     93:     }
                     94: #endif
                     95: 
                     96:     fgets(buf, sizeof(buf), fp);
                     97:     while (buf[strlen(buf)-1] < ' ') 
                     98:         buf[strlen(buf)-1] = '\0';
                     99: 
                    100:     //if (fp != stdin) 
                    101:     //    fclose(fp);
                    102:     return buf;
                    103: }
                    104: #endif
                    105: 
                    106: int main(int argc, char *argv[]) 
                    107: {
                    108:     char* pw;
                    109:     uint8_t md5_salt[MD5_SIZE], md5_pass[MD5_SIZE];
                    110:     char b64_salt[MD5_SIZE+10], b64_pass[MD5_SIZE+10];
                    111:     MD5_CTX ctx;
                    112: 
                    113:     if (argc != 2)
                    114:         usage();
                    115: 
                    116:     pw = strdup(getpass("New password:"));
                    117:     if (strcmp(pw, getpass("Re-type new password:")) != 0)
                    118:     {
                    119:         fprintf(stderr, "They don't match, sorry.\n" );
                    120:         exit(1);
                    121:     }
                    122: 
                    123:     RNG_initialize();
                    124:     get_random(MD5_SIZE, md5_salt);
                    125:     RNG_terminate();
                    126:     base64_encode(md5_salt, MD5_SIZE, b64_salt, sizeof(b64_salt));
                    127: 
                    128:     MD5_Init(&ctx);
                    129:     MD5_Update(&ctx, md5_salt, MD5_SIZE);
                    130:     MD5_Update(&ctx, (uint8_t *)pw, strlen(pw));
                    131:     MD5_Final(md5_pass, &ctx);
                    132:     base64_encode(md5_pass, MD5_SIZE, b64_pass, sizeof(b64_pass));
                    133: 
                    134:     printf("Add the following to your '.htpasswd' file\n");
                    135:     printf("%s:%s$%s\n", argv[1], b64_salt, b64_pass);
                    136:     return 0;
                    137: }