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Annotation of embedaddon/sudo/plugins/sudoers/hexchar.c, revision 1.1.1.2

1.1       misho       1: /*
                      2:  * Copyright (c) 2013 Todd C. Miller <Todd.Miller@courtesan.com>
                      3:  *
                      4:  * Permission to use, copy, modify, and distribute this software for any
                      5:  * purpose with or without fee is hereby granted, provided that the above
                      6:  * copyright notice and this permission notice appear in all copies.
                      7:  *
                      8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                      9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     15:  */
                     16: 
                     17: #include <config.h>
                     18: 
                     19: #include <sys/types.h>
                     20: #include <stdio.h>
                     21: 
                     22: #include "missing.h"
                     23: #include "sudo_debug.h"
1.1.1.2 ! misho      24: #include "fatal.h"
1.1       misho      25: 
                     26: int
                     27: hexchar(const char *s)
                     28: {
                     29:     unsigned char result[2];
                     30:     int i;
                     31:     debug_decl(hexchar, SUDO_DEBUG_UTIL)
                     32: 
                     33:     for (i = 0; i < 2; i++) {
                     34:        switch (s[i]) {
                     35:        case '0':
                     36:            result[i] = 0;
                     37:            break;
                     38:        case '1':
                     39:            result[i] = 1;
                     40:            break;
                     41:        case '2':
                     42:            result[i] = 2;
                     43:            break;
                     44:        case '3':
                     45:            result[i] = 3;
                     46:            break;
                     47:        case '4':
                     48:            result[i] = 4;
                     49:            break;
                     50:        case '5':
                     51:            result[i] = 5;
                     52:            break;
                     53:        case '6':
                     54:            result[i] = 6;
                     55:            break;
                     56:        case '7':
                     57:            result[i] = 7;
                     58:            break;
                     59:        case '8':
                     60:            result[i] = 8;
                     61:            break;
                     62:        case '9':
                     63:            result[i] = 9;
                     64:            break;
                     65:        case 'A':
                     66:        case 'a':
                     67:            result[i] = 10;
                     68:            break;
                     69:        case 'B':
                     70:        case 'b':
                     71:            result[i] = 11;
                     72:            break;
                     73:        case 'C':
                     74:        case 'c':
                     75:            result[i] = 12;
                     76:            break;
                     77:        case 'D':
                     78:        case 'd':
                     79:            result[i] = 13;
                     80:            break;
                     81:        case 'E':
                     82:        case 'e':
                     83:            result[i] = 14;
                     84:            break;
                     85:        case 'F':
                     86:        case 'f':
                     87:            result[i] = 15;
                     88:            break;
                     89:        default:
                     90:            /* Should not happen. */
                     91:            fatalx("internal error, \\x%s not in proper hex format", s);
                     92:        }
                     93:     }
                     94:     debug_return_int((result[0] << 4) | result[1]);
                     95: }