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tools/pcmcia/crc32hash.c
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// SPDX-License-Identifier: GPL-2.0-only |
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/* crc32hash.c - derived from linux/lib/crc32.c, GNU GPL v2 */ /* Usage example: $ ./crc32hash "Dual Speed" */ #include <string.h> #include <stdio.h> #include <ctype.h> #include <stdlib.h> |
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static unsigned int crc32(unsigned char const *p, unsigned int len) |
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{ int i; unsigned int crc = 0; while (len--) { crc ^= *p++; for (i = 0; i < 8; i++) crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0); } return crc; } int main(int argc, char **argv) { unsigned int result; if (argc != 2) { printf("no string passed as argument "); return -1; } |
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result = crc32((unsigned char const *)argv[1], strlen(argv[1])); |
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printf("0x%x ", result); return 0; } |