author | Markus Bröker <mbroeker@largo.dyndns.tv> |
Tue, 09 Mar 2010 12:58:27 +0100 | |
changeset 122 | 50ba3b0e271a |
parent 121 | fef2ccfa7b12 |
child 136 | d82f65e902d0 |
permissions | -rw-r--r-- |
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/** |
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* lsflib/src/md5sum.c |
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* Copyright (C) 2008 Markus Broeker |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include <openssl/evp.h> |
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#include <lsf/lsf.h> |
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unsigned char *md5sum (char *fname) |
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{ |
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EVP_MD_CTX mdctx; |
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const EVP_MD *md; |
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char line[81]; |
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unsigned char md_value[EVP_MAX_MD_SIZE]; |
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int md_len, i; |
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FILE *f; |
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static unsigned char *value = NULL; |
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OpenSSL_add_all_digests (); |
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if ((f = fopen (fname, "rb")) == NULL) { |
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perror ("FOPEN"); |
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value = malloc (1); |
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value = 0; |
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return value; |
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} |
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if ((md = EVP_get_digestbyname ("md5")) == NULL) { |
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value = malloc (1); |
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value = 0; |
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return value; |
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} |
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EVP_MD_CTX_init (&mdctx); |
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EVP_DigestInit_ex (&mdctx, md, NULL); |
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*line = 0; |
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while ((i = fread (line, 1, 80, f)) != 0) { |
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EVP_DigestUpdate (&mdctx, line, i); |
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} |
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fclose (f); |
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EVP_DigestFinal_ex (&mdctx, md_value, (unsigned int *)&md_len); |
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EVP_MD_CTX_cleanup (&mdctx); |
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value = malloc (md_len + 1); |
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for (i = 0; i < md_len; i++) |
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value[i] = md_value[i]; |
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value[i] = 0; |
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return value; |
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} |