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#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(__APPLE__)
# define COMMON_DIGEST_FOR_OPENSSL
# include <CommonCrypto/CommonDigest.h>
# define SHA1 CC_SHA1
#else
# include <openssl/md5.h>
#endif
#define CHUNK 512
int main(int argc, const char *argv[])
{
MD5_CTX context;
unsigned char digest[16];
char *md5 = (char*)malloc(33);
const char *filename = argv[1];
FILE *file = fopen(filename, "r");
char buffer[CHUNK];
size_t nread;
if (file) {
MD5_Init(&context);
while( (nread = fread(buffer, 1, sizeof(buffer), file)) > 0) {
MD5_Update(&context, buffer, nread);
}
MD5_Final(digest, &context);
for (int i = 0; i < 16; ++i) {
sprintf(&md5[i*2], "%02x", (unsigned int)digest[i]);
}
printf("%s (%s) = %s\n", "MD5", filename, md5);
return 0;
}
return 1;
}
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