mirror of https://github.com/BOINC/boinc.git
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
#include <stdio.h>
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#include "md5.h"
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#include "md5_file.h"
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#include "error_numbers.h"
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int md5_file(char* path, char* output, double& nbytes) {
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unsigned char buf[4096];
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unsigned char binout[16];
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FILE* f;
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md5_state_t state;
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int i, n;
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if(path==NULL) {
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fprintf(stderr, "error: md5_file: unexpected NULL pointer path\n");
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return ERR_NULL;
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}
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if(output==NULL) {
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fprintf(stderr, "error: md5_file: unexpected NULL pointer output\n");
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return ERR_NULL;
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}
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nbytes = 0;
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f = fopen(path, "rb");
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if (!f) {
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fprintf(stderr, "md5_file: can't open %s\n", path);
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perror("md5_file");
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return -1;
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}
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md5_init(&state);
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while (1) {
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n = fread(buf, 1, 4096, f);
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if (n<=0) break;
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nbytes += n;
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md5_append(&state, buf, n);
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}
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md5_finish(&state, binout);
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for (i=0; i<16; i++) {
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sprintf(output+2*i, "%02x", binout[i]);
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}
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output[32] = 0;
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fclose(f);
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return 0;
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}
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int md5_block(unsigned char* data, int nbytes, char* output) {
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unsigned char binout[16];
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int i;
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if(data==NULL) {
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fprintf(stderr, "error: md5_block: unexpected NULL pointer data\n");
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return ERR_NULL;
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}
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if(nbytes<0) {
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fprintf(stderr, "error: md5_block: negative nbytes\n");
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return ERR_NEG;
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}
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if(output==NULL) {
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fprintf(stderr, "error: md5_block: unexpected NULL pointer output\n");
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return ERR_NULL;
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}
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md5_state_t state;
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md5_init(&state);
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md5_append(&state, data, nbytes);
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md5_finish(&state, binout);
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for (i=0; i<16; i++) {
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sprintf(output+2*i, "%02x", binout[i]);
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}
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output[32] = 0;
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return 0;
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}
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