Annotation of embedaddon/sudo/plugins/sudoers/hexchar.c, revision 1.1
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"
! 24: #include "error.h"
! 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: }
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