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89 lines
2.2 KiB
89 lines
2.2 KiB
/* gcc -O2 -Wall cdromchk.c -o cdromchk
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*
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* --- SDE-COPYRIGHT-NOTE-BEGIN ---
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* This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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*
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* Filename: lib/misc/cdromchk.c
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* Copyright (C) 2008 The OpenSDE Project
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* Copyright (C) 2004 - 2006 The T2 SDE Project
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* Copyright (C) 1998 - 2003 Clifford Wolf
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*
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* More information can be found in the files COPYING and README.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License. A copy of the
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* GNU General Public License can be found in the file COPYING.
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* --- SDE-COPYRIGHT-NOTE-END ---
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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int main(int argc, char ** argv) {
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int cdrom,file;
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char buf1[4096];
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char buf2[4096];
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int rc1,rc2,rc3;
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int c1=0,c2=0;
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if (argc != 3) {
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fprintf(stderr,"Usage: %s <cdrom> <iso-file>\n",argv[0]);
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return 1;
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}
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fprintf(stderr,"Checking CD-ROM ...");
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if ( (cdrom=open(argv[1],O_RDONLY|O_SYNC)) == 0 ) {
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fprintf(stderr,"\n%s: Can't open %s: %s\n",
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argv[0],argv[1],strerror(errno));
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return 1;
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}
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if ( (file=open(argv[2],O_RDONLY)) == 0 ) {
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fprintf(stderr,"\n%s: Can't open %s: %s\n",
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argv[0],argv[2],strerror(errno));
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return 1;
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}
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while ( (rc1=read(file,buf1,4096)) > 0 ) {
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for (rc2=0; rc2 < rc1; rc2+=rc3) {
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rc3=read(cdrom,buf2+rc2,rc1-rc2);
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if (rc3 == -1) {
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fprintf(stderr,"\n%s: cdrom read error: %s\n",
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argv[0],strerror(errno));
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return 1;
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}
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if (rc3 == 0) break;
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}
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if (rc2 != rc1) {
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fprintf(stderr,"\n%s: cdrom read error: %d of "
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"%d bytes\n",argv[0],rc2,rc1);
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return 1;
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}
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if (memcmp(buf1,buf2,rc2)) {\
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fprintf(stderr,"\n%s: cdrom data differs from "
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"the iso file\n",argv[0]);
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return 1;
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}
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c1+=rc2; c2+=rc2;
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if (c1 > (1048576*16)) {
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c1=0;
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fprintf(stderr,".");
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}
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}
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if (rc1 == -1) {
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fprintf(stderr,"\n%s: file read error: %s\n",
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argv[0],strerror(errno));
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return 1;
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}
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fprintf(stderr," OK (%d MB).\n",c2/1048576);
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return 0;
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}
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