boinc/lib/md5_file.C

51 lines
1.1 KiB
C

#include <stdio.h>
#include "md5.h"
#include "md5_file.h"
#include "error_numbers.h"
int md5_file(char* path, char* output, double& nbytes) {
unsigned char buf[4096];
unsigned char binout[16];
FILE* f;
md5_state_t state;
int i, n;
nbytes = 0;
f = fopen(path, "rb");
if (!f) {
fprintf(stdout, "md5_file: can't open %s\n", path);
perror("md5_file");
return -1;
}
md5_init(&state);
while (1) {
n = fread(buf, 1, 4096, f);
if (n<=0) break;
nbytes += n;
md5_append(&state, buf, n);
}
md5_finish(&state, binout);
for (i=0; i<16; i++) {
sprintf(output+2*i, "%02x", binout[i]);
}
output[32] = 0;
fclose(f);
return 0;
}
int md5_block(unsigned char* data, int nbytes, char* output) {
unsigned char binout[16];
int i;
md5_state_t state;
md5_init(&state);
md5_append(&state, data, nbytes);
md5_finish(&state, binout);
for (i=0; i<16; i++) {
sprintf(output+2*i, "%02x", binout[i]);
}
output[32] = 0;
return 0;
}