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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>
#include "prism.h"
#include "md5.h"
#include "rfile.h"
#include "compress.h"
static const char hex_str[]= "0123456789abcdef";
int get_file_hash(const char *filename, char *hash)
{
FILE *fp;
MD5_CTX hb;
char buf[16];
int i;
if(filename == NULL || hash == NULL)
return PRET_ERROR;
fp = fopen(filename, "rb");
if(fp == NULL)
return PRET_READERROR;
MD5_Init(&hb);
while((i = fread(buf, sizeof(char), 15, fp)) > 0) {
MD5_Update(&hb, buf, i);
}
fclose(fp);
MD5_Final(buf, &hb);
for(i=0; i<16; i++) {
hash[2*i] = hex_str[buf[i] >> 4];
hash[2*i+1] = hex_str[buf[i] & 0x0F];
}
return PRET_OK;
}
int compress_file(const char *filename, int id, int revision)
{
char *newfile;
/* Arbitrary size... */
newfile = (char *)malloc(128*sizeof(char));
if(newfile == NULL)
return PRET_ERROR;
snprintf(newfile, 128, "%s%s%x.%x", PDB_DIR, DIR_SEP, id, revision);
if(file_compress(filename, newfile) >= 0)
return PRET_OK;
return PRET_GZFAILED;
}
int decompress_file(const char *destination, int id, int revision)
{
char *stored_name;
/* Arbitrary size... */
stored_name = (char *)malloc(128*sizeof(char));
if(stored_name == NULL)
return PRET_ERROR;
snprintf(stored_name, 128, "%s%s%x.%x", PDB_DIR, DIR_SEP, id, revision);
unlink(destination);
if(file_uncompress(stored_name, destination) >= 0)
return PRET_OK;
return PRET_GZFAILED;
}
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