mirror of
https://github.com/DrBeef/DVR.git
synced 2024-12-21 01:51:11 +00:00
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h> /* exit(), atexit() */
|
|
|
|
#include "p_checksum.h"
|
|
#include "md5.h"
|
|
#include "doomstat.h" /* players{,ingame} */
|
|
#include "lprintf.h"
|
|
|
|
/* forward decls */
|
|
static void p_checksum_cleanup(void);
|
|
void checksum_gamestate(int tic);
|
|
|
|
/* vars */
|
|
static void p_checksum_nop(int tic){} /* do nothing */
|
|
void (*P_Checksum)(int) = p_checksum_nop;
|
|
|
|
/*
|
|
* P_RecordChecksum
|
|
* sets up the file and function pointers to write out checksum data
|
|
*/
|
|
static FILE *outfile = NULL;
|
|
static struct MD5Context md5global;
|
|
|
|
void P_RecordChecksum(const char *file) {
|
|
size_t fnsize;
|
|
|
|
fnsize = strlen(file);
|
|
|
|
/* special case: write to stdout */
|
|
// if(0 == strncmp("-",file,MIN(1,fnsize)))
|
|
// outfile = stdout;
|
|
// else {
|
|
outfile = fopen(file,"wb");
|
|
if(NULL == outfile) {
|
|
I_Error("cannot open %s for writing\n",
|
|
file);
|
|
}
|
|
atexit(p_checksum_cleanup);
|
|
//}
|
|
|
|
MD5Init(&md5global);
|
|
|
|
P_Checksum = checksum_gamestate;
|
|
}
|
|
|
|
void P_ChecksumFinal(void) {
|
|
int i;
|
|
unsigned char digest[16];
|
|
|
|
if (!outfile)
|
|
return;
|
|
|
|
MD5Final(digest, &md5global);
|
|
fprintf(outfile, "final: ");
|
|
for (i=0; i<16; i++)
|
|
fprintf(outfile,"%x", digest[i]);
|
|
fprintf(outfile, "\n");
|
|
MD5Init(&md5global);
|
|
}
|
|
|
|
static void p_checksum_cleanup(void) {
|
|
if (outfile ) // && (outfile != stdout))
|
|
fclose(outfile);
|
|
}
|
|
|
|
/*
|
|
* runs on each tic when recording checksums
|
|
*/
|
|
void checksum_gamestate(int tic) {
|
|
int i;
|
|
struct MD5Context md5ctx;
|
|
unsigned char digest[16];
|
|
char buffer[2048];
|
|
|
|
fprintf(outfile,"%6d, ", tic);
|
|
|
|
/* based on "ArchivePlayers" */
|
|
MD5Init(&md5ctx);
|
|
for (i=0 ; i<MAXPLAYERS ; i++) {
|
|
if (!playeringame[i]) continue;
|
|
|
|
#ifdef HAVE_SNPRINTF
|
|
snprintf (buffer, sizeof(buffer), "%d", players[i].health);
|
|
#else
|
|
sprintf (buffer, "%d", players[i].health);
|
|
#endif
|
|
buffer[sizeof(buffer)-1] = 0;
|
|
|
|
MD5Update(&md5ctx, (md5byte const *)&buffer, strlen(buffer));
|
|
}
|
|
MD5Final(digest, &md5ctx);
|
|
for (i=0; i<16; i++) {
|
|
MD5Update(&md5global, (md5byte const *)&digest[i], sizeof(digest[i]));
|
|
fprintf(outfile,"%x", digest[i]);
|
|
}
|
|
|
|
fprintf(outfile,"\n");
|
|
}
|