1082 lines
34 KiB
C
1082 lines
34 KiB
C
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/* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
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Copyright 2007-2024 Thomas Schmitt, <scdbackup@gmx.net>
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Provided under GPL version 2 or later.
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This file contains the implementation of actions which compare or update
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files between disk filesystem and ISO filesystem.
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*/
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#ifdef HAVE_CONFIG_H
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#include "../config.h"
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#endif
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#include <ctype.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <time.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <pwd.h>
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#include <grp.h>
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/* O_BINARY is needed for Cygwin but undefined elsewhere */
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#include "xorriso.h"
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#include "xorriso_private.h"
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#include "xorrisoburn.h"
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/*
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@param result Bitfield indicationg type of mismatch
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bit11= cannot open regular disk file
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bit12= cannot open iso file
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bit13= early eof of disk file
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bit14= early eof of iso file
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bit15= content bytes differ
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@param flag bit0= mtimes of both file objects are equal
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bit29= do not issue pacifier messages
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bit31= do not issue result messages
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@return >0 ok , <=0 error
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*/
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int Xorriso_compare_2_contents(struct XorrisO *xorriso, char *common_adr,
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char *disk_adr, off_t disk_size,
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off_t offset, off_t bytes,
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char *iso_adr, off_t iso_size,
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int *result, int flag)
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{
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int fd1= -1, ret, r1, r2, done, wanted, i, was_error= 0, use_md5= 0;
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void *stream2= NULL;
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off_t r1count= 0, r2count= 0, diffcount= 0, first_diff= -1;
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char *respt, *buf1= NULL, *buf2= NULL, offset_text[80];
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char disk_md5[16], iso_md5[16];
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void *ctx= NULL;
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int buf_size= 32 * 1024;
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double dcount;
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Xorriso_alloc_meM(buf1, char, buf_size);
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Xorriso_alloc_meM(buf2, char, buf_size);
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respt= xorriso->result_line;
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fd1= open(disk_adr, O_RDONLY | O_BINARY);
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if(fd1==-1) {
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sprintf(respt, "- %s (DISK) : cannot open() : %s\n",
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disk_adr, strerror(errno));
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cannot_address:;
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= 2048;
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{ret= 0; goto ex;}
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}
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if(offset>0)
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if(lseek(fd1, offset, SEEK_SET)==-1) {
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sprintf(respt, "- %s (DISK) : cannot lseek(%.f) : %s\n",
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disk_adr, (double) offset, strerror(errno));
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close(fd1);
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goto cannot_address;
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}
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if(xorriso->do_md5 & 16) {
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use_md5= 1;
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ret= Xorriso_is_plain_image_file(xorriso, NULL, iso_adr, 0);
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if(ret <= 0)
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ret= 0; /* (reverse) filtered files are likely not to match their MD5 */
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else
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ret= Xorriso_get_md5(xorriso, NULL, iso_adr, iso_md5, 1);
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if(ret <= 0)
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use_md5= 0;
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else {
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ret= Xorriso_md5_start(xorriso, &ctx, 0);
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if(ret <= 0)
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use_md5= 0;
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}
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}
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if (! use_md5) {
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ret= Xorriso_iso_file_open(xorriso, iso_adr, NULL, &stream2, 0);
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if(ret<=0) {
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sprintf(respt, "- %s (ISO) : cannot open() file in ISO image\n",iso_adr);
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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close(fd1);
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(*result)|= 4096;
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{ret= 0; goto ex;}
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}
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}
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done= 0;
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while(!done) {
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wanted= buf_size;
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if(r1count+offset+wanted>disk_size)
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wanted= disk_size-r1count-offset;
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if(r1count+wanted>bytes)
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wanted= bytes-r1count;
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r1= 0;
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while(wanted>0) {
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ret= read(fd1, buf1, wanted);
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if(ret<=0)
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break;
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wanted-= ret;
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r1+= ret;
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}
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wanted= buf_size;
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if(r2count+wanted>iso_size)
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wanted= iso_size-r2count;
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/*
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if(r2count+wanted>bytes)
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wanted= bytes-r2count;
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*/
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if(use_md5)
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r2= r1;
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else if(wanted>0)
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r2= Xorriso_iso_file_read(xorriso, stream2, buf2, wanted, 0);
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else
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r2= 0;
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if(r1<0 || r2<0)
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was_error= 1;
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if(r1<=0 && r2<=0)
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break;
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if(r1<=0) {
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if(r1<0)
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r1= 0;
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if(disk_size > r1count + r1 + offset) {
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sprintf(respt, "- %s (DISK) : early EOF after %.f bytes\n",
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disk_adr, (double) r1count);
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= 8196;
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}
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(*result)|= (1<<15);
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}
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r1count+= r1;
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if(r2<=0 || r2<r1) {
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if(r2<0)
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r2= 0;
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if(iso_size > r2count + r2) {
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sprintf(respt, "- %s (ISO) : early EOF after %.f bytes\n",
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iso_adr, (double) r2count);
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= (1<<14);
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}
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(*result)|= (1<<15);
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done= 1;
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}
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if(r2>r1) {
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if(disk_size > r1count + r1 + offset) {
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sprintf(respt, "- %s (DISK) : early EOF after %.f bytes\n",
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disk_adr, (double) r1count);
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= 8196;
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}
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(*result)|= (1<<15);
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done= 1;
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}
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r2count+= r2;
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if(r1>r2)
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r1= r2;
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if(use_md5) {
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Xorriso_md5_compute(xorriso, ctx, buf1, r1, 0);
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} else {
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for(i= 0; i<r1; i++) {
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if(buf1[i]!=buf2[i]) {
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if(first_diff<0)
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first_diff= r1count - r1 + i;
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diffcount++;
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}
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}
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}
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if(!(flag&(1<<29))) {
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xorriso->pacifier_count+= r1;
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xorriso->pacifier_byte_count+= r1;
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if(flag&(1u<<31))
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Xorriso_pacifier_callback(xorriso, "content bytes read",
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xorriso->pacifier_count, 0, "", 8);
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else
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Xorriso_pacifier_callback(xorriso, "bytes", xorriso->pacifier_count, 0,
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"", 8 | 1<<6);
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}
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}
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if(use_md5) {
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ret= Xorriso_md5_end(xorriso, &ctx, disk_md5, 0);
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if(ret <= 0) {
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*result |= (1 << 15);
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ret= -1; goto ex;
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}
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for(i= 0; i < 16; i++)
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if(iso_md5[i] != disk_md5[i])
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break;
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if(i < 16 ) {
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offset_text[0]= 0;
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if(offset>0)
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sprintf(offset_text, "%.f+", (double) offset);
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sprintf(respt, "%s %s : differs by MD5 sums.\n",
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common_adr, (flag&1 ? "CONTENT": "content"));
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= (1<<15);
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}
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} else if(diffcount>0 || r1count!=r2count) {
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if(first_diff<0)
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first_diff= (r1count>r2count ? r2count : r1count);
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offset_text[0]= 0;
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if(offset>0)
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sprintf(offset_text, "%.f+", (double) offset);
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if(r1count > r2count)
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dcount= diffcount + (r1count - r2count);
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else
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dcount= diffcount + (r2count - r1count);
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sprintf(respt, "%s %s : differs by at least %.f bytes. First at %s%.f\n",
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common_adr, (flag&1 ? "CONTENT": "content"),
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dcount, offset_text, (double) first_diff);
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= (1<<15);
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}
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if(fd1!=-1)
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close(fd1);
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if(! use_md5)
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Xorriso_iso_file_close(xorriso, &stream2, 0);
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if(was_error)
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{ret= -1; goto ex;}
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ret= 1;
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ex:;
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if(ctx != NULL)
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Xorriso_md5_end(xorriso, &ctx, disk_md5, 0);
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Xorriso_free_meM(buf1);
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Xorriso_free_meM(buf2);
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return(ret);
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}
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/*
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@param result Bitfield indicationg type of mismatch
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bit0= disk_adr not existing
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bit1= iso_adr not existing
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bit2= access permissions
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bit3= file type
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bit4= user id
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bit5= group id
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bit6= minor, major with device file
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bit7= size
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bit8= mtime
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bit9= atime
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bit10= ctime
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bit11= cannot open regular disk file
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bit12= cannot open iso file
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bit13= early eof of disk file
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bit14= early eof of iso file
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bit15= content bytes differ
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bit16= symbolic link on disk pointing to dir, dir in iso
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bit17= file chunks detected and compared
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bit18= incomplete chunk collection encountered
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bit19= ACL differs (this condition sets also bit2)
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bit20= xattr differ
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bit21= mismatch of recorded dev,inode
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bit22= no recorded dev,inode found in node
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bit23= timestamps younger than xorriso->isofs_st_in
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bit24= hardlink split
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bit25= hardlink fusion
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bit26= Linux file attribute mismatch
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@param flag bit0= compare atime
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bit1= compare ctime
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bit2= check only existence of both file objects
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count one or both missing as "difference"
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bit26= do not issue message about missing disk file
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bit27= for Xorriso_path_is_excluded(): bit0
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bit28= examine eventual disk_path link target rather than link
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bit29= do not issue pacifier messages
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bit30= omit adr_common_tail in report messages
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bit31= do not issue result messages
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@return 1=files match properly , 0=difference detected , -1=error
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*/
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int Xorriso_compare_2_files(struct XorrisO *xorriso, char *disk_adr,
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char *iso_adr, char *adr_common_tail,
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int *result, int flag)
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{
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struct stat s1, s2, stbuf;
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int ret, missing= 0, is_split= 0, i, was_error= 0, diff_count= 0;
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int content_shortcut= 0, mask, max_bit;
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char *respt;
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char *a= NULL;
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char ttx1[40], ttx2[40], *lfa_text= NULL;
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char *a1_acl= NULL, *a2_acl= NULL, *d1_acl= NULL, *d2_acl= NULL;
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char *attrlist1= NULL, *attrlist2= NULL;
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struct SplitparT *split_parts= NULL;
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int split_count= 0;
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time_t stamp;
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uint64_t lfa_flags1, lfa_flags2;
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char *part_path= NULL, *part_name;
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int partno, total_parts= 0;
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off_t offset, bytes, total_bytes;
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Xorriso_alloc_meM(a, char, 5*SfileadrL);
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Xorriso_alloc_meM(part_path, char, SfileadrL);
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*result= 0;
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respt= xorriso->result_line;
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if(!(xorriso->disk_excl_mode&8)) {
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ret= Xorriso_path_is_excluded(xorriso, disk_adr, 2 | !!(flag&(1<<27)));
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if(ret>0) {
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strcpy(respt, "? ");
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Text_shellsafe(disk_adr, respt, 1);
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sprintf(respt + strlen(respt), " (DISK) : excluded by %s\n",
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(ret==1 ? "-not_paths" : "-not_leaf"));
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if(! (flag & ((1u << 31) | (1 << 26))))
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Xorriso_result(xorriso,0);
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missing= 1;
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(*result)|= 1;
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}
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}
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if(!missing) {
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if(flag&(1<<28))
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ret= stat(disk_adr, &s1);
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else
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ret= lstat(disk_adr, &s1);
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if(ret==-1) {
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strcpy(respt, "? ");
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Text_shellsafe(disk_adr, respt, 1);
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sprintf(respt + strlen(respt),
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" (DISK) : cannot lstat() : %s\n", strerror(errno));
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if(! (flag & ((1u << 31) | (1 << 26))))
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Xorriso_result(xorriso,0);
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missing= 1;
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(*result)|= 1;
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}
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}
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if(missing)
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strcpy(a, "?");
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else
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strcpy(a, Ftypetxt(s1.st_mode, 1));
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strcat(a, " ");
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if(adr_common_tail[0])
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Text_shellsafe(adr_common_tail, a, 1);
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else {
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Text_shellsafe(disk_adr, a+strlen(a), 0);
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strcat(a, " (DISK)");
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/*
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strcat(a, "'.'");
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*/
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}
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strcat(a, " :");
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if(flag&(1<<30))
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a[0]= 0;
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ret= Xorriso_iso_lstat(xorriso, iso_adr, &s2, 0);
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if(ret<0) {
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strcpy(respt, "? ");
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Text_shellsafe(iso_adr, respt, 1);
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strcat(respt, " (ISO) : cannot find this file in ISO image\n");
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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missing= 1;
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(*result)|= 2;
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}
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if((flag&4)||missing)
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{ret= !missing; goto ex;}
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|
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/* Splitfile parts */
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if((S_ISREG(s1.st_mode) || S_ISBLK(s1.st_mode)) && S_ISDIR(s2.st_mode)) {
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is_split= Xorriso_identify_split(xorriso, iso_adr, NULL, &split_parts,
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&split_count, &s2, 0);
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if(is_split>0)
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(*result)|= (1<<17);
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else
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is_split= 0;
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}
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/* Attributes */
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if(s1.st_mode != s2.st_mode) {
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if((s1.st_mode&~S_IFMT)!=(s2.st_mode&~S_IFMT)) {
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sprintf(respt, "%s st_mode : %7.7o <> %7.7o\n",
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a, (unsigned int) (s1.st_mode & ~S_IFMT),
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(unsigned int) (s2.st_mode & ~S_IFMT));
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= 4;
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}
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|
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if((s1.st_mode&S_IFMT)!=(s2.st_mode&S_IFMT)) {
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sprintf(respt, "%s type : %s <> %s\n",
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a, Ftypetxt(s1.st_mode, 0), Ftypetxt(s2.st_mode, 0));
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if(!(flag&(1u<<31)))
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Xorriso_result(xorriso,0);
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(*result)|= 8;
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if((s1.st_mode&S_IFMT) == S_IFLNK) {
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/* check whether link target type matches */
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ret= stat(disk_adr, &stbuf);
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if(ret!=-1)
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if(S_ISDIR(stbuf.st_mode) && S_ISDIR(s2.st_mode))
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(*result)|= (1<<16);
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}
|
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}
|
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}
|
|
|
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/* ACL */
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if(xorriso->do_aaip & 3) {
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Xorriso_local_getfacl(xorriso, disk_adr, &a1_acl,
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16 | ((flag & (1 << 28)) >> 23));
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if(S_ISDIR(s1.st_mode))
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Xorriso_local_getfacl(xorriso, disk_adr, &d1_acl, 1);
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ret= Xorriso_getfacl(xorriso, NULL, iso_adr, &a2_acl, 1 | 4 | 16);
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if(ret < 0)
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goto ex;
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if(S_ISDIR(s1.st_mode)) {
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ret= Xorriso_getfacl(xorriso, NULL, iso_adr, &d2_acl, 1 | 8);
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if(ret < 0)
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goto ex;
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}
|
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ret= Compare_text_lines(a1_acl, a2_acl, &diff_count, 0);
|
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if(ret < 0)
|
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goto ex;
|
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if(ret == 0)
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(*result)|= 4 | (1 << 19);
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ret= Compare_text_lines(d1_acl, d2_acl, &diff_count, 1);
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if(ret < 0)
|
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goto ex;
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if(ret == 0)
|
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(*result)|= 4 | (1 << 19);
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if((*result) & (1 << 19)) {
|
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sprintf(respt, "%s ACL : %d difference%s\n",
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a, diff_count, diff_count == 1 ? "" : "s");
|
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if(!(flag&(1u<<31)))
|
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Xorriso_result(xorriso,0);
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}
|
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}
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|
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/* xattr */
|
|
if(xorriso->do_aaip & 12) {
|
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ret= Xorriso_getfattr(xorriso, NULL, disk_adr, &attrlist1,
|
|
1 | 2 | ((flag & (1 << 28)) >> 23));
|
|
if(ret < 0)
|
|
goto ex;
|
|
ret= Xorriso_getfattr(xorriso, NULL, iso_adr, &attrlist2, 1);
|
|
if(ret < 0)
|
|
goto ex;
|
|
ret= Compare_text_lines(attrlist1, attrlist2, &diff_count, 0);
|
|
if(ret < 0)
|
|
goto ex;
|
|
if(ret == 0) {
|
|
(*result)|= (1 << 20);
|
|
sprintf(respt, "%s xattr : %d difference%s\n",
|
|
a, diff_count, diff_count == 1 ? "" : "s");
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
}
|
|
}
|
|
|
|
/* lfa_flags */
|
|
if(xorriso->do_aaip & (3 << 11)) {
|
|
ret= Xorriso_get_lfa_flags(xorriso, NULL, disk_adr, &lfa_flags1, &max_bit,
|
|
2 | ((flag & (1 << 28)) >> 23));
|
|
if(ret < 0)
|
|
goto ex;
|
|
ret= Xorriso_get_lfa_flags(xorriso, NULL, iso_adr, &lfa_flags2, &max_bit,
|
|
0);
|
|
if(ret < 0)
|
|
goto ex;
|
|
if(lfa_flags1 != lfa_flags2) {
|
|
(*result)|= (1 << 26);
|
|
Xorriso_encode_lfa_flags(xorriso, lfa_flags1, &lfa_text, 1);
|
|
if(lfa_text != NULL) {
|
|
sprintf(respt, "%s lsattr : %s <> ", a, lfa_text);
|
|
free(lfa_text);
|
|
}
|
|
Xorriso_encode_lfa_flags(xorriso, lfa_flags2, &lfa_text, 1);
|
|
if(lfa_text != NULL) {
|
|
sprintf(respt + strlen(respt), "%s", lfa_text);
|
|
free(lfa_text);
|
|
}
|
|
Xorriso_encode_lfa_flags(xorriso, lfa_flags1 ^ lfa_flags2, &lfa_text, 0);
|
|
if(lfa_text != NULL) {
|
|
sprintf(respt + strlen(respt), " diff= %s", lfa_text);
|
|
free(lfa_text);
|
|
}
|
|
strcat(respt, "\n");
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
}
|
|
}
|
|
|
|
if(s1.st_uid != s2.st_uid) {
|
|
sprintf(respt, "%s st_uid : %lu <> %lu\n", a,
|
|
(unsigned long) s1.st_uid, (unsigned long) s2.st_uid);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= 16;
|
|
}
|
|
if(s1.st_gid != s2.st_gid) {
|
|
sprintf(respt, "%s st_gid : %lu <> %lu\n", a,
|
|
(unsigned long) s1.st_gid, (unsigned long) s2.st_gid);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= 32;
|
|
}
|
|
if((S_ISCHR(s1.st_mode) && S_ISCHR(s2.st_mode)) ||
|
|
(S_ISBLK(s1.st_mode) && S_ISBLK(s2.st_mode))) {
|
|
if(s1.st_rdev != s2.st_rdev) {
|
|
sprintf(respt, "%s %s st_rdev : %lu <> %lu\n", a,
|
|
(S_ISCHR(s1.st_mode) ? "S_IFCHR" : "S_IFBLK"),
|
|
(unsigned long) s1.st_rdev, (unsigned long) s1.st_rdev);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= 64;
|
|
}
|
|
}
|
|
if((!(xorriso->do_aaip & 32)) &&
|
|
S_ISREG(s2.st_mode) && s1.st_size != s2.st_size) {
|
|
sprintf(respt, "%s st_size : %.f <> %.f diff= %.f\n",
|
|
a, (double) s1.st_size, (double) s2.st_size,
|
|
((double) s1.st_size) - (double) s2.st_size);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= 128;
|
|
}
|
|
if(s1.st_mtime != s2.st_mtime) {
|
|
sprintf(respt, "%s st_mtime : %s <> %s diff= %.f s\n",
|
|
a, Ftimetxt(s1.st_mtime, ttx1, 0),
|
|
Ftimetxt(s2.st_mtime, ttx2, 0),
|
|
((double) s1.st_mtime) - (double) s2.st_mtime);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= 256;
|
|
}
|
|
if(flag&1) {
|
|
if(s1.st_atime != s2.st_atime) {
|
|
sprintf(respt, "%s st_atime : %s <> %s diff= %.f s\n",
|
|
a, Ftimetxt(s1.st_atime, ttx1, 0),
|
|
Ftimetxt(s2.st_atime, ttx2, 0),
|
|
((double) s1.st_atime) - (double) s2.st_atime);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= 512;
|
|
}
|
|
}
|
|
if(flag&2) {
|
|
if(s1.st_ctime != s2.st_ctime) {
|
|
sprintf(respt, "%s st_ctime : %s <> %s diff= %.f s\n",
|
|
a, Ftimetxt(s1.st_ctime, ttx1, 0),
|
|
Ftimetxt(s2.st_ctime, ttx2, 0),
|
|
((double) s1.st_ctime) - (double) s2.st_ctime);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= 1024;
|
|
}
|
|
}
|
|
if(xorriso->isofs_st_in > 0 &&
|
|
(xorriso->isofs_st_in <= s2.st_mtime ||
|
|
((flag & 1) && xorriso->isofs_st_in <= s2.st_atime) ||
|
|
((flag & 2) && xorriso->isofs_st_in <= s2.st_ctime)))
|
|
(*result)|= 1 << 23;
|
|
|
|
if((xorriso->do_aaip & 32) || !(xorriso->ino_behavior & 2)) {
|
|
/* dev,inode comparison.
|
|
For skipping content comparison or for hardlink detection.
|
|
*/
|
|
ret= Xorriso_record_dev_inode(xorriso, "", s1.st_dev, s1.st_ino, NULL,
|
|
iso_adr, 1 | 2 | ((flag & (1 << 28)) >> 23) | (xorriso->do_aaip & 128));
|
|
if(ret < 0) {
|
|
ret= -1; goto ex;
|
|
} else if(ret == 0) { /* match */
|
|
if((xorriso->do_aaip & 64) && S_ISREG(s1.st_mode) && S_ISREG(s2.st_mode)){
|
|
if(xorriso->do_aaip & 32)
|
|
content_shortcut= 1;
|
|
if((*result) & (8 | 128 | 256 | 512 | 1024 | (1 << 23))) {
|
|
(*result)|= (1 << 15); /* content bytes differ */
|
|
if(((*result) & (1 << 23)) &&
|
|
!((*result) & (8 | 128 | 256 | 512 | 1024))) {
|
|
sprintf(respt,
|
|
"%s content : node timestamp younger than image timestamp\n", a);
|
|
if((xorriso->do_aaip & 32) && !(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
stamp= s2.st_mtime;
|
|
if((flag & 1) && s2.st_atime >= stamp)
|
|
stamp= s2.st_atime;
|
|
if((flag & 2) && s2.st_ctime >= stamp)
|
|
stamp= s2.st_ctime;
|
|
sprintf(respt, "%s content : %s > %s diff= %.f s\n",
|
|
a, Ftimetxt(stamp, ttx1, 3 << 1),
|
|
Ftimetxt(xorriso->isofs_st_in, ttx2, 3 << 1),
|
|
((double) stamp) - (double) xorriso->isofs_st_in);
|
|
if((xorriso->do_aaip & 32) && !(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
}
|
|
sprintf(respt,
|
|
"%s content : assuming inequality due to size or timestamps\n", a);
|
|
if((xorriso->do_aaip & 32) && !(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
}
|
|
}
|
|
} else if(ret == 1) { /* mismatch */
|
|
(*result)|= (1 << 21);
|
|
sprintf(respt, "%s dev_ino : differing\n", a);
|
|
if((xorriso->do_aaip & 32) && !(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
|
|
if((xorriso->do_aaip & 64) && S_ISREG(s1.st_mode) && S_ISREG(s2.st_mode)){
|
|
if(xorriso->do_aaip & 32)
|
|
content_shortcut= 1;
|
|
(*result)|= (1 << 15); /* content bytes differ */
|
|
sprintf(respt,
|
|
"%s content : assuming inequality after dev_ino mismatch\n", a);
|
|
if((xorriso->do_aaip & 32) && !(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
}
|
|
} else {
|
|
sprintf(respt, "%s dev_ino : no dev_ino stored with image node\n", a);
|
|
if((xorriso->do_aaip & 32) && !(flag&(1u<<31)))
|
|
Xorriso_result(xorriso,0);
|
|
(*result)|= (1 << 22);
|
|
}
|
|
}
|
|
|
|
if(S_ISREG(s1.st_mode) && S_ISREG(s2.st_mode) && !content_shortcut) {
|
|
/* Content */
|
|
if(is_split) {
|
|
for(i= 0; i<split_count; i++) {
|
|
Splitparts_get(split_parts, i, &part_name, &partno, &total_parts,
|
|
&offset, &bytes, &total_bytes, 0);
|
|
strcpy(part_path, iso_adr);
|
|
if(Sfile_add_to_path(part_path, part_name, 0)<=0) {
|
|
Xorriso_much_too_long(xorriso, strlen(iso_adr)+strlen(part_name)+1,
|
|
2);
|
|
{ret= -1; goto ex;}
|
|
}
|
|
ret= Xorriso_iso_lstat(xorriso, part_path, &stbuf, 0);
|
|
if(ret<0)
|
|
continue;
|
|
ret= Xorriso_compare_2_contents(xorriso, a, disk_adr, s1.st_size,
|
|
offset, bytes,
|
|
part_path, stbuf.st_size, result,
|
|
(s1.st_mtime==s2.st_mtime) | (flag&((1<<29)|(1u<<31))));
|
|
if(ret<0)
|
|
was_error= 1;
|
|
}
|
|
if(total_parts>0 && split_count!=total_parts) {
|
|
sprintf(xorriso->info_text,
|
|
"- %s/* (ISO) : Not all split parts present (%d of %d)\n",
|
|
iso_adr, split_count, total_parts);
|
|
if(!(flag&(1u<<31)))
|
|
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 1);
|
|
(*result)|= 1<<18;
|
|
}
|
|
} else {
|
|
ret= Xorriso_compare_2_contents(xorriso, a, disk_adr, s1.st_size,
|
|
(off_t) 0, s1.st_size,
|
|
iso_adr, s2.st_size, result,
|
|
(s1.st_mtime==s2.st_mtime) | (flag&((1<<29)|(1u<<31))));
|
|
if(ret<0)
|
|
was_error= 1;
|
|
}
|
|
|
|
}
|
|
if(was_error)
|
|
ret= -1;
|
|
else {
|
|
mask= ~((1 << 17) | (1 << 18) | (1 << 22) | (1 << 23));
|
|
if(xorriso->do_aaip & 32)
|
|
mask|= 1 << 22;
|
|
ret= (((*result) & mask)==0);
|
|
}
|
|
ex:;
|
|
if(split_parts!=NULL)
|
|
Splitparts_destroy(&split_parts, split_count, 0);
|
|
Xorriso_local_getfacl(xorriso, disk_adr, &a1_acl, 1 << 15);
|
|
Xorriso_local_getfacl(xorriso, disk_adr, &d1_acl, 1 << 15);
|
|
if(a2_acl != NULL)
|
|
free(a2_acl);
|
|
if(d2_acl != NULL)
|
|
free(d2_acl);
|
|
if(attrlist1 != NULL)
|
|
free(attrlist1);
|
|
if(attrlist2 != NULL)
|
|
free(attrlist2);
|
|
Xorriso_free_meM(part_path);
|
|
Xorriso_free_meM(a);
|
|
return(ret);
|
|
}
|
|
|
|
|
|
int Xorriso_pfx_disk_path(struct XorrisO *xorriso, char *iso_path,
|
|
char *iso_prefix, char *disk_prefix,
|
|
char disk_path[SfileadrL], int flag)
|
|
{
|
|
int ret;
|
|
char *adrc= NULL;
|
|
|
|
Xorriso_alloc_meM(adrc, char, SfileadrL);
|
|
|
|
if(strncmp(iso_path, iso_prefix, strlen(iso_prefix))!=0)
|
|
{ret= -1; goto ex;}
|
|
if(strlen(disk_prefix) + strlen(iso_path) - strlen(iso_prefix)+1 >= SfileadrL)
|
|
{ret= -1; goto ex;}
|
|
if(iso_path[strlen(iso_prefix)] == '/')
|
|
strcpy(adrc, iso_path + strlen(iso_prefix) + 1);
|
|
else
|
|
strcpy(adrc, iso_path + strlen(iso_prefix));
|
|
ret= Xorriso_make_abs_adr(xorriso, disk_prefix, adrc, disk_path, 4 | 8);
|
|
if(ret <= 0)
|
|
goto ex;
|
|
ret= 1;
|
|
ex:;
|
|
Xorriso_free_meM(adrc);
|
|
return(ret);
|
|
}
|
|
|
|
|
|
/* @param boss_iter Opaque handle to be forwarded to actions in ISO image
|
|
Set to NULL if calling this function from outside ISO world
|
|
@param flag bit0= update rather than compare
|
|
bit1= find[ix] is in recursion
|
|
bit2= update_merge : do not delete but mark visited and found
|
|
@return <=0 error, 1= ok , 2= iso_path was deleted
|
|
3=ok, do not dive into directory (e.g. because it is a split file)
|
|
*/
|
|
int Xorriso_find_compare(struct XorrisO *xorriso, void *boss_iter, void *node,
|
|
char *iso_path, char *iso_prefix, char *disk_prefix,
|
|
int flag)
|
|
{
|
|
int ret, result, uret, follow_links, deleted= 0;
|
|
char *disk_path= NULL;
|
|
|
|
Xorriso_alloc_meM(disk_path, char, SfileadrL);
|
|
|
|
ret= Xorriso_pfx_disk_path(xorriso, iso_path, iso_prefix, disk_prefix,
|
|
disk_path, 0);
|
|
if(ret <= 0)
|
|
goto ex;
|
|
|
|
/* compare exclusions against disk_path resp. leaf name */
|
|
if(xorriso->disk_excl_mode&8)
|
|
ret= Xorriso_path_is_excluded(xorriso, disk_path, !(flag&2));
|
|
else
|
|
ret= 0;
|
|
if(ret<0)
|
|
goto ex;
|
|
if(ret>0)
|
|
{ret= 3; goto ex;}
|
|
|
|
follow_links= (xorriso->do_follow_links ||
|
|
(xorriso->do_follow_param && !(flag&2))) <<28;
|
|
ret= Xorriso_compare_2_files(xorriso, disk_path, iso_path, "", &result,
|
|
2 | follow_links | ((!!(flag & 4)) << 26)
|
|
| ((!(flag&2))<<27) | (((unsigned)(flag&1))<<31));
|
|
/* was once: | ((!(flag&1))<<29) */
|
|
if(ret<xorriso->find_compare_result)
|
|
xorriso->find_compare_result= ret;
|
|
if(flag&1) {
|
|
if(ret<0)
|
|
if(Xorriso_eval_problem_status(xorriso, ret, 1|2)<0)
|
|
goto ex;
|
|
if(ret > 0)
|
|
result= 0;
|
|
uret= Xorriso_update_interpreter(xorriso, boss_iter, node, result,
|
|
disk_path, iso_path,
|
|
((flag & 2) << 1) | ((flag & 4) >> 1));
|
|
if(uret<=0)
|
|
ret= 0;
|
|
if(uret==2)
|
|
deleted= 1;
|
|
}
|
|
if(ret<0)
|
|
goto ex;
|
|
if(deleted)
|
|
{ret= 2; goto ex;}
|
|
if(result&(1<<17))
|
|
{ret= 3; goto ex;}
|
|
ex:;
|
|
Xorriso_free_meM(disk_path);
|
|
return(ret);
|
|
}
|
|
|
|
|
|
/* @param boss_iter Opaque handle to be forwarded to actions in ISO image
|
|
Set to NULL if calling this function from outside ISO world
|
|
@param flag bit0= widen hardlink sibling:
|
|
Do not call Xorriso_hardlink_update()
|
|
Overwrite exactly if normal mode would not,
|
|
else do nothing
|
|
bit1= do not delete files which are not found under
|
|
disk_path, but rather mark visited files and mark
|
|
files which were found.
|
|
bit2= -follow: this is not a command parameter
|
|
@return <=0 error, 1= ok , 2= iso_rr_path node object has been deleted ,
|
|
3= no action taken
|
|
*/
|
|
int Xorriso_update_interpreter(struct XorrisO *xorriso,
|
|
void *boss_iter, void *node,
|
|
int compare_result, char *disk_path,
|
|
char *iso_rr_path, int flag)
|
|
{
|
|
int ret= 1, deleted= 0, is_split= 0, i, loop_count, late_hardlink_update= 0;
|
|
struct stat stbuf;
|
|
struct SplitparT *split_parts= NULL;
|
|
int split_count= 0;
|
|
char *part_path= NULL, *part_name;
|
|
int partno, total_parts, new_total_parts, added_overwrote= 0;
|
|
off_t offset, bytes, total_bytes, disk_size, first_bytes, du_size;
|
|
|
|
if((compare_result&3)==3) {
|
|
sprintf(xorriso->info_text, "Missing on disk and in ISO: disk_path ");
|
|
Text_shellsafe(disk_path, xorriso->info_text, 1);
|
|
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 1);
|
|
xorriso->find_compare_result= -1;
|
|
ret= 3; goto ex;
|
|
}
|
|
|
|
Xorriso_alloc_meM(part_path, char, SfileadrL);
|
|
|
|
if((flag & 2) && !(compare_result & 2)) {
|
|
ret= Xorriso_mark_update_merge(xorriso, iso_rr_path, node,
|
|
!(compare_result & 1));
|
|
if(ret <= 0)
|
|
goto ex;
|
|
}
|
|
if(compare_result == 0)
|
|
{ret= 1; goto ex;}
|
|
|
|
if(compare_result&((1<<11)|(1<<13))) {
|
|
if(flag & 1)
|
|
{ret= 3; goto ex;}
|
|
/* cannot open regular disk file, early eof of disk file */
|
|
sprintf(xorriso->info_text, "Problems with reading disk file ");
|
|
Text_shellsafe(disk_path, xorriso->info_text, 1);
|
|
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 1);
|
|
xorriso->find_compare_result= -1;
|
|
ret= 1; goto ex;
|
|
}
|
|
xorriso->info_text[0]= 0;
|
|
is_split= !!(compare_result & (1<<17));
|
|
|
|
if((!(xorriso->ino_behavior & 2)) && (compare_result & (2 | (3 << 21))) &&
|
|
!(flag & 1)) {
|
|
if(compare_result & 2) {
|
|
/* File is not yet in image */
|
|
late_hardlink_update= 1;
|
|
} else {
|
|
/* Hard link relation has changed resp. was not recorded. */
|
|
ret= Xorriso_hardlink_update(xorriso, &compare_result,
|
|
disk_path, iso_rr_path,
|
|
(flag & 4) | ((compare_result >> 21) & 2));
|
|
if(ret < 0)
|
|
goto ex;
|
|
if(ret == 2)
|
|
{ret= 1; goto ex;}
|
|
}
|
|
}
|
|
|
|
if(compare_result&(8|64)) {
|
|
/* file type, minor+major with device file */
|
|
if(flag & 1)
|
|
{ret= 3; goto ex;}
|
|
ret= Xorriso_rmi(xorriso, boss_iter, (off_t) 0, iso_rr_path, 1); /* rm_r */
|
|
if(ret>0) {
|
|
deleted= 1;
|
|
ret= Xorriso_graft_in(xorriso, boss_iter, disk_path, iso_rr_path,
|
|
(off_t) 0, (off_t) 0, 2|(flag&4));
|
|
if(ret <= 0)
|
|
goto ex;
|
|
if(flag & 2) {
|
|
ret= Xorriso_mark_update_merge(xorriso, iso_rr_path, NULL, 1);
|
|
if(ret <= 0)
|
|
goto ex;
|
|
}
|
|
}
|
|
sprintf(xorriso->info_text, "Deleted and re-added ");
|
|
|
|
} else if(compare_result&(1)) {
|
|
delete:;
|
|
/* disk_adr not existing */
|
|
if(!(flag & 2)) {
|
|
ret= Xorriso_rmi(xorriso, boss_iter, (off_t) 0, iso_rr_path, 1);
|
|
deleted= 1;
|
|
sprintf(xorriso->info_text, "Deleted ");
|
|
}
|
|
|
|
} else if(compare_result&(2|128|(1<<12)|(1<<14)|(1<<15))) {
|
|
/* iso_adr not existing, size, cannot open iso file, early eof of iso file
|
|
content bytes differ */
|
|
|
|
if(flag & 1)
|
|
{ret= 3; goto ex;}
|
|
overwrite:;
|
|
if(is_split) {
|
|
ret= Xorriso_identify_split(xorriso, iso_rr_path, NULL,
|
|
&split_parts, &split_count, &stbuf, 0);
|
|
if(ret<=0)
|
|
{ret= -1; goto ex;} /* (should not happen) */
|
|
ret= lstat(disk_path, &stbuf);
|
|
if(ret==-1)
|
|
goto delete;
|
|
disk_size= stbuf.st_size;
|
|
Splitparts_get(split_parts, 0, &part_name, &partno, &total_parts,
|
|
&offset, &first_bytes, &total_bytes, 0);
|
|
new_total_parts= disk_size/first_bytes;
|
|
if(disk_size % first_bytes)
|
|
new_total_parts++;
|
|
|
|
loop_count= split_count;
|
|
/* If disk file grew over part limit and all parts are present:
|
|
add new parts */
|
|
if(new_total_parts > total_parts && split_count == total_parts)
|
|
loop_count= new_total_parts;
|
|
|
|
for(i= 0; i<loop_count; i++) {
|
|
if(i<split_count) {
|
|
/* Delete old part */
|
|
Splitparts_get(split_parts, i, &part_name, &partno, &total_parts,
|
|
&offset, &bytes, &total_bytes, 0);
|
|
strcpy(part_path, iso_rr_path);
|
|
if(Sfile_add_to_path(part_path, part_name, 0)<=0) {
|
|
Xorriso_much_too_long(xorriso,
|
|
strlen(iso_rr_path)+strlen(part_path)+1, 2);
|
|
{ret= -1; goto ex;}
|
|
}
|
|
ret= Xorriso_rmi(xorriso, NULL, (off_t) 0, part_path, 1);
|
|
if(ret<=0)
|
|
goto ex;
|
|
deleted= 1;
|
|
} else {
|
|
partno= i+1;
|
|
offset= i*first_bytes;
|
|
bytes= first_bytes;
|
|
}
|
|
if(disk_size<=offset)
|
|
continue;
|
|
/* Insert new part */
|
|
if(strlen(part_path)+160>SfileadrL) {
|
|
Xorriso_much_too_long(xorriso, strlen(part_path)+160, 2);
|
|
ret= 0; goto ex;
|
|
}
|
|
Splitpart__compose(part_path+strlen(iso_rr_path)+1, partno,
|
|
new_total_parts, offset, first_bytes, disk_size, 0);
|
|
ret= Xorriso_graft_in(xorriso, boss_iter, disk_path, part_path,
|
|
offset, bytes, 2|(flag&4)|8|128);
|
|
if(ret<=0)
|
|
goto ex;
|
|
}
|
|
/* Copy file attributes to iso_rr_path, augment r-perms by x-perms */
|
|
ret= Xorriso_copy_properties(xorriso, disk_path, iso_rr_path, 2 | 4);
|
|
if(ret<=0)
|
|
goto ex;
|
|
} else {
|
|
ret= Xorriso_graft_in(xorriso, boss_iter, disk_path, iso_rr_path,
|
|
(off_t) 0, (off_t) 0, 2|(flag&4));
|
|
if(ret>0 && !(compare_result&2))
|
|
deleted= 1;
|
|
}
|
|
if(late_hardlink_update) {
|
|
/* Handle eventual hardlink siblings of newly created file */
|
|
ret= Xorriso_hardlink_update(xorriso, &compare_result,
|
|
disk_path, iso_rr_path, 1 | (flag & 4));
|
|
if(ret < 0)
|
|
goto ex;
|
|
}
|
|
if(flag & 2) {
|
|
ret= Xorriso_mark_update_merge(xorriso, iso_rr_path, NULL, 1);
|
|
if(ret <= 0)
|
|
goto ex;
|
|
}
|
|
if(flag & 1) {
|
|
sprintf(xorriso->info_text, "Widened hard link ");
|
|
} else {
|
|
sprintf(xorriso->info_text, "Added/overwrote ");
|
|
added_overwrote= 1;
|
|
}
|
|
|
|
} else if(compare_result&(4|16|32|256|512|1024|(1<<19)|(1<<20)|(1<<22))) {
|
|
/* access permissions, user id, group id, mtime, atime, ctime, ACL, xattr,
|
|
dev_ino missing */
|
|
|
|
if(flag & 1)
|
|
goto overwrite;
|
|
|
|
if(is_split) {
|
|
ret= Xorriso_identify_split(xorriso, iso_rr_path, NULL,
|
|
&split_parts, &split_count, &stbuf, 0);
|
|
if(ret<=0)
|
|
{ret= -1; goto ex;} /* (should not happen) */
|
|
for(i= 0; i<split_count; i++) {
|
|
Splitparts_get(split_parts, i, &part_name, &partno, &total_parts,
|
|
&offset, &bytes, &total_bytes, 0);
|
|
strcpy(part_path, iso_rr_path);
|
|
if(Sfile_add_to_path(part_path, part_name, 0)<=0) {
|
|
Xorriso_much_too_long(xorriso,
|
|
strlen(iso_rr_path)+strlen(part_path)+1, 2);
|
|
{ret= -1; goto ex;}
|
|
}
|
|
ret= Xorriso_copy_properties(xorriso, disk_path, part_path,
|
|
4 * !(compare_result & (1<<21)));
|
|
/* do not update eventually mismatching dev_ino */
|
|
if(ret<=0)
|
|
goto ex;
|
|
}
|
|
/* Copy file attributes to iso_rr_path, augment r-perms by x-perms */
|
|
ret= Xorriso_copy_properties(xorriso, disk_path, iso_rr_path, 2 | 4);
|
|
if(ret<=0)
|
|
goto ex;
|
|
} else
|
|
ret= Xorriso_copy_properties(xorriso, disk_path, iso_rr_path, 4);
|
|
sprintf(xorriso->info_text, "Adjusted attributes of ");
|
|
|
|
} else if(flag & 1) {
|
|
goto overwrite;
|
|
} else
|
|
ret= 1;
|
|
if(ret>0 && xorriso->info_text[0]) {
|
|
Text_shellsafe(iso_rr_path, xorriso->info_text, 1);
|
|
if(added_overwrote) {
|
|
ret= Xorriso_iso_lstat(xorriso, iso_rr_path, &stbuf, 0);
|
|
if(ret == 0 && S_ISREG(stbuf.st_mode)) {
|
|
strcat(xorriso->info_text, " (");
|
|
Sfile_scale((double) stbuf.st_size,
|
|
xorriso->info_text + strlen(xorriso->info_text), 5, 1e4,
|
|
1 | 2);
|
|
strcat(xorriso->info_text, ")");
|
|
} else if (ret == 0 && S_ISDIR(stbuf.st_mode)) {
|
|
ret= Xorriso_get_dus(xorriso, iso_rr_path, &du_size, (off_t) 0, 0);
|
|
if(ret > 0 && du_size > 0) {
|
|
strcat(xorriso->info_text, " (");
|
|
Sfile_scale((double) du_size,
|
|
xorriso->info_text + strlen(xorriso->info_text), 5, 1e4,
|
|
1 | 2);
|
|
strcat(xorriso->info_text, ")");
|
|
}
|
|
}
|
|
}
|
|
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "UPDATE", 0);
|
|
}
|
|
ret= 1;
|
|
ex:;
|
|
if(split_parts!=NULL)
|
|
Splitparts_destroy(&split_parts, split_count, 0);
|
|
Xorriso_free_meM(part_path);
|
|
if(ret<=0)
|
|
return(ret);
|
|
if(deleted)
|
|
return(2);
|
|
return(ret);
|
|
}
|
|
|