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| Rev | Author | Line No. | Line |
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| 8436 | maxcodehac | 1 | /* |
| 2 | jbig2dec |
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| 3 | |||
| 4 | Copyright (C) 2001-2005 Artifex Software, Inc. |
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| 5 | |||
| 6 | This software is distributed under license and may not |
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| 7 | be copied, modified or distributed except as expressly |
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| 8 | authorized under the terms of the license contained in |
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| 9 | the file LICENSE in this distribution. |
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| 10 | |||
| 11 | For further licensing information refer to http://artifex.com/ or |
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| 12 | contact Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134, |
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| 13 | San Rafael, CA 94903, U.S.A., +1(415)492-9861. |
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| 14 | */ |
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| 15 | |||
| 16 | #ifdef HAVE_CONFIG_H |
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| 17 | #include "config.h" |
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| 18 | #endif |
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| 19 | |||
| 20 | #include |
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| 21 | |||
| 22 | /* replacement for broken memcmp() */ |
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| 23 | |||
| 24 | /* |
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| 25 | * compares two byte strings 'a' and 'b', both assumed to be 'len' bytes long |
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| 26 | * returns zero if the two strings are identical, otherwise returns -1 or 1 |
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| 27 | * depending on the relative magnitude of the first differing elements, |
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| 28 | * considered as unsigned chars |
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| 29 | */ |
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| 30 | |||
| 31 | int memcmp(const void *b1, const void *b2, size_t len) |
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| 32 | { |
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| 33 | unsigned char *a, *b; |
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| 34 | size_t i; |
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| 35 | |||
| 36 | a = (unsigned char *)b1; |
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| 37 | b = (unsigned char *)b2; |
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| 38 | for(i = 0; i < len; i++) { |
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| 39 | if (*a != *b) { |
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| 40 | /* strings differ */ |
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| 41 | return (*a < *b) ? -1 : 1; |
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| 42 | } |
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| 43 | a++; |
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| 44 | b++; |
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| 45 | } |
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| 46 | |||
| 47 | /* strings match */ |
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| 48 | return 0; |
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| 49 | } |