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Setting chattr "C" and "i" at their proper times during restoring to disk

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This commit is contained in:
Thomas Schmitt
2024-08-06 21:32:41 +02:00
parent ce66b6a7e4
commit c0ec40c5d2
10 changed files with 417 additions and 174 deletions
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36
xorriso/aux_objects.c
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@@ -42,6 +42,7 @@
#include "xorriso.h"
#include "xorriso_private.h"
#include "xorrisoburn.h"
/* ---------------------------- SplitparT ------------------------- */
@@ -939,10 +940,16 @@ int Linkitem_get_link_count(struct LinkiteM *item, int flag)
struct PermiteM {
char *disk_path;
struct stat stbuf;
int immutable; /* bit0= set chattr immutable bit
bit1= only set immutable bit
*/
struct PermiteM *next;
};
/* @param flag bit0= Linux chattr immutable bit is set
bit1= when popping only set immutable bit
*/
int Permstack_push(struct PermiteM **o, char *disk_path, struct stat *stbuf,
int flag)
{
@@ -953,6 +960,7 @@ int Permstack_push(struct PermiteM **o, char *disk_path, struct stat *stbuf,
return(-1);
m->disk_path= NULL;
memcpy(&(m->stbuf), stbuf, sizeof(struct stat));
m->immutable= flag & 3;
m->next= *o;
m->disk_path= strdup(disk_path);
@@ -971,6 +979,7 @@ failed:;
/* @param flag bit0= minimal transfer: access permissions only
bit1= do not set timestamps
bit2= do not set chattr flag i "immutable"
*/
int Permstack_pop(struct PermiteM **o, struct PermiteM *stopper,
struct XorrisO *xorriso, int flag)
@@ -992,18 +1001,21 @@ int Permstack_pop(struct PermiteM **o, struct PermiteM *stopper,
}
for(m= *o; m!=stopper; m= m_next) {
ret= chmod(m->disk_path, m->stbuf.st_mode);
if(ret==-1) {
if(xorriso!=NULL) {
sprintf(xorriso->info_text,
"Cannot change access permissions of disk directory: chmod %o ",
(unsigned int) (m->stbuf.st_mode & 07777));
Text_shellsafe(m->disk_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",
0);
if(!(m->immutable & 2)) {
ret= chmod(m->disk_path, m->stbuf.st_mode);
if(ret==-1) {
if(xorriso!=NULL) {
sprintf(xorriso->info_text,
"Cannot change access permissions of disk directory: chmod %o ",
(unsigned int) (m->stbuf.st_mode & 07777));
Text_shellsafe(m->disk_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",
0);
}
}
}
if(!(flag&1)) {
if(!((flag & 1) || (m->immutable & 2))) {
ret= chown(m->disk_path, m->stbuf.st_uid, m->stbuf.st_gid);
/* don't complain if it fails */
if(!(flag&2)) {
@@ -1019,6 +1031,10 @@ int Permstack_pop(struct PermiteM **o, struct PermiteM *stopper,
}
}
}
if((m->immutable & 1) && !(flag & 4))
Xorriso_set_local_chattr_i(xorriso, m->disk_path, 0);
m_next= m->next;
free(m->disk_path);
free((char *) m);