Enabled osirrox of more file types, curbed with device files
This commit is contained in:
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4f1456769f
commit
50a0258a78
@ -1596,18 +1596,31 @@ pseudo-drives or as log files.
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But its alter ego, osirrox, is able to extract file objects
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from ISO images and to create, overwrite, or delete file objects on disk.
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.TP
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\fB\-osirrox\fR "on"|"off"
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\fB\-osirrox\fR "on"|"device_files"|"off"
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Setting "off" disables disk filesystem manipulations. This is the default
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unless the program was started with leafname "osirrox". Elsewise
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the capability to restore files can be enabled explicitly by -osirrox "on".
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.br
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To enable restoring of special files by "device_files" is potentially
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dangerous.
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The meaning of the number st_rdev (see man 2 stat) depends much on the
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operating system. Best is to restore device files only to the same system
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from where they were copied. If not enabled, device files in the ISO image
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are ignored during restore operations.
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.br
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Due to a bug of previous versions, device files from previous sessions might
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have been altered to major=0, minor=1. So this combination does not get
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restored.
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.TP
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\fB\-cpx\fR iso_rr_path [***] disk_path
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Extract regular files from the ISO image and store them under the address given
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by disk_path. If more then one iso_rr_path is given then disk_path must be
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a directory or non-existent. In the latter case it gets created and the
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extracted files get installed in it with the same leafnames.
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Extract single leaf file objects from the ISO image and store them under
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the address given by disk_path. If more then one iso_rr_path is given then
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disk_path must be a directory or non-existent. In the latter case it gets
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created. The extracted files get installed in it with the same leafnames.
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.br
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Missing directory components in disk_path will get created, if possible.
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Disk file exclusions are in effect. If this is undesired then perform
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-not_mgt "off" first.
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.TP
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.B Command compatibility emulations:
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.PP
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@ -3823,8 +3823,10 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
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Xorriso_status_result(xorriso,filter,fp,flag&2);
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}
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is_default= !(xorriso->allow_restore);
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sprintf(line,"-osirrox %s\n", xorriso->allow_restore ? "on" : "off");
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is_default= (xorriso->allow_restore==0);
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sprintf(line,"-osirrox %s\n",
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xorriso->allow_restore ? xorriso->allow_restore==2 ? "device_files" : "on"
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: "off");
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if(!(is_default && no_defaults))
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Xorriso_status_result(xorriso,filter,fp,flag&2);
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@ -5996,7 +5998,8 @@ int Xorriso__mode_to_perms(mode_t st_mode, char perms[10], int flag)
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int Xorriso_format_ls_l(struct XorrisO *xorriso, struct stat *stbuf, int flag)
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{
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char *rpt, perms[10];
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int show_major_minor= 0;
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char *rpt, perms[10], mm_text[80];
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mode_t st_mode;
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rpt= xorriso->result_line;
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@ -6009,11 +6012,13 @@ int Xorriso_format_ls_l(struct XorrisO *xorriso, struct stat *stbuf, int flag)
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strcat(rpt, "-");
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else if(S_ISLNK(st_mode))
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strcat(rpt, "l");
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else if(S_ISBLK(st_mode))
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else if(S_ISBLK(st_mode)) {
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strcat(rpt, "b");
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else if(S_ISCHR(st_mode))
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show_major_minor= 1;
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} else if(S_ISCHR(st_mode)) {
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strcat(rpt, "c");
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else if(S_ISFIFO(st_mode))
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show_major_minor= 1;
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} else if(S_ISFIFO(st_mode))
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strcat(rpt, "p");
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else if(S_ISSOCK(st_mode))
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strcat(rpt, "s");
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@ -6027,6 +6032,11 @@ int Xorriso_format_ls_l(struct XorrisO *xorriso, struct stat *stbuf, int flag)
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sprintf(rpt+strlen(rpt), "%-8lu ", (unsigned long) stbuf->st_uid);
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sprintf(rpt+strlen(rpt), "%-8lu ", (unsigned long) stbuf->st_gid);
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if(show_major_minor) {
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sprintf(mm_text, "%d,%d", (int) ((stbuf->st_rdev>>8)&0xfff),
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(int) (((stbuf->st_rdev&~0xfffff)>>12) | (stbuf->st_rdev&0xff)));
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sprintf(rpt+strlen(rpt), "%8s ", mm_text);
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} else
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sprintf(rpt+strlen(rpt), "%8.f ", (double) stbuf->st_size);
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Ftimetxt(stbuf->st_mtime, rpt+strlen(rpt), 0);
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@ -7975,7 +7985,7 @@ int Xorriso_option_blank(struct XorrisO *xorriso, char *mode, int flag)
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if(ret<=0)
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return(2);
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if(strcmp(mode, "as_needed")==0)
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if(strcmp(mode, "as_needed")==0 || mode[0]==0)
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as_needed= 1;
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else if(strcmp(mode, "all")==0 || strcmp(mode, "full")==0)
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mode_flag= 0;
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@ -8008,9 +8018,7 @@ unusable_index:;
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if(idx<0 || idx>255)
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goto unusable_index;
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mode_flag|= (idx<<8);
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} else if(mode[0]==0)
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mode_flag= !(flag&1);
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else {
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} else {
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sprintf(xorriso->info_text,
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"%s: Unknown %s mode '%s'",
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cmd, ((flag&1) ? "-format" : "-blank"), mode);
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@ -8669,6 +8677,7 @@ problem_handler:;
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continue;
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goto ex;
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}
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if(xorriso->pacifier_count>0)
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Xorriso_pacifier_callback(xorriso, "files copied", xorriso->pacifier_count,
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xorriso->pacifier_total, "", 1);
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ret= !was_failure;
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@ -9589,12 +9598,12 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
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" Like -compare but affecting all files below directories.",
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"",
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"Restore options (copying file objects from ISO image to disk filesystem):",
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" -osirrox \"on\"|\"off\"",
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" -osirrox \"on\"|\"device_files\"|\"off\"",
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" By default \"off\" the inverse operation of xorriso from ISO",
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" image to disk filesystem is disabled. \"on\" allows xorriso",
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" to create, overwrite, delete files in the disk filesystem.",
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" -cpx iso_rr_path [***] disk_path",
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" Copy regular files from ISO image to disk filesystem.",
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" Copy leaf file objects from ISO image to disk filesystem.",
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"",
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"Compatibility emulation (argument list may be ended by --):",
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" -as mkisofs [-help|-o|-R|-J|-V|-P|-f|-graft-points|-path-list|pathspecs]",
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@ -10473,6 +10482,8 @@ int Xorriso_option_osirrox(struct XorrisO *xorriso, char *mode, int flag)
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{
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if(strcmp(mode, "off")==0)
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xorriso->allow_restore= 0;
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else if(strcmp(mode, "device_files")==0)
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xorriso->allow_restore= 2;
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else if(strcmp(mode, "on")==0 || mode[0]==0)
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xorriso->allow_restore= 1;
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else {
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@ -158,7 +158,7 @@ struct XorrisO { /* the global context of xorriso */
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/* XORRISO options */
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int allow_graft_points;
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int allow_restore;
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int allow_restore; /* 0= disallowed, 1=allowed, 2=device files allowed */
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int dialog;
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@ -1 +1 @@
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#define Xorriso_timestamP "2008.05.22.210835"
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#define Xorriso_timestamP "2008.05.24.092546"
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@ -1474,6 +1474,87 @@ int Xorriso_get_node_by_path(struct XorrisO *xorriso,
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}
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/* <<< this is not safe
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#define Xorriso_can_get_dev_T 1
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#define Xorriso_get_dev_by_botcH 1
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*/
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#ifndef Xorriso_can_get_dev_T
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#ifdef Xorriso_standalonE
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/* this is safe */
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#define Xorriso_can_get_dev_T 1
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#define Xorriso_get_dev_by_botcH 1
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#endif /* Xorriso_standalonE */
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#endif /* Xorriso_can_get_dev_T */
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/* @param flag bit0= do not complain about being unable to retrieve info
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*/
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int Xorriso_node_get_dev(struct XorrisO *xorriso, IsoNode *node,
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char *path, dev_t *dev, int flag)
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{
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#ifdef Xorriso_can_get_dev_T
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/* >>> insert future API call here and remove botch below */
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/* <<< */
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#ifdef Xorriso_get_dev_by_botcH
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/* Drilling a hole into libisofs-0.6.4 in order to substitute for the lack
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of an API call which returns the dev_t number of a IsoSpecial (block or
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character device).
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*/
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/* These are clones from libisofs/node.h */
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typedef struct iso_extended_info IsoExtendedInfo_0_6_4_xorrisO;
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struct Iso_Node_0_6_4_xorrisO
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{
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int refcount;
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enum IsoNodeType type;
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char *name;
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mode_t mode;
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uid_t uid;
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gid_t gid;
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time_t atime;
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time_t mtime;
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time_t ctime;
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int hidden;
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IsoDir *parent;
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IsoNode *next;
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IsoExtendedInfo_0_6_4_xorrisO *xinfo;
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};
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struct Iso_Special_0_6_4_xorrisO
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{
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struct Iso_Node_0_6_4_xorrisO node;
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dev_t dev;
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};
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*dev= ((struct Iso_Special_0_6_4_xorrisO *) node)->dev;
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return(1);
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#endif /* Xorriso_get_dev_by_botcH */
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#else /* Xorriso_can_get_dev_T */
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char sfe[SfileadrL];
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if(flag&1)
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return(0);
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sprintf(xorriso->info_text,
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"Cannot obtain device major,minor from ISO image file %s",
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Text_shellsafe(path, sfe, 0));
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Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
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return(0);
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#endif /* ! Xorriso_can_get_dev_T */
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}
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/* @param flag bit0= *node is already valid
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bit1= add extra block for size estimation
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*/
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@ -1505,11 +1586,13 @@ int Xorriso_fake_stbuf(struct XorrisO *xorriso, char *path, struct stat *stbuf,
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stbuf->st_mode|= S_IFREG;
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else if(LIBISO_ISLNK(*node))
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stbuf->st_mode|= S_IFLNK;
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else if(LIBISO_ISCHR(*node))
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else if(LIBISO_ISCHR(*node)) {
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stbuf->st_mode|= S_IFCHR;
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else if(LIBISO_ISBLK(*node))
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Xorriso_node_get_dev(xorriso, *node, path, &(stbuf->st_rdev), 1);
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} else if(LIBISO_ISBLK(*node)) {
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stbuf->st_mode|= S_IFBLK;
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else if(LIBISO_ISFIFO(*node))
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Xorriso_node_get_dev(xorriso, *node, path, &(stbuf->st_rdev), 1);
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} else if(LIBISO_ISFIFO(*node))
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stbuf->st_mode|= S_IFIFO;
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else if(LIBISO_ISSOCK(*node))
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stbuf->st_mode|= S_IFSOCK;
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@ -1524,8 +1607,6 @@ int Xorriso_fake_stbuf(struct XorrisO *xorriso, char *path, struct stat *stbuf,
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stbuf->st_uid= iso_node_get_uid(*node);
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stbuf->st_gid= iso_node_get_gid(*node);
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/* >>> stbuf->st_rdev */
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if(LIBISO_ISREG(*node))
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stbuf->st_size= iso_file_get_size((IsoFile *) *node)+ (2048 * !!(flag&2));
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else
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@ -2439,16 +2520,22 @@ int Xorriso_restore_implict_properties(struct XorrisO *xorriso, IsoDir *dir,
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#endif /* Osirrox_not_yeT */
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/* @param flag bit0= minimal transfer: access permissions only
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@return <0 severe error , 0 failure , 1 success
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/* @param flag bit0= Minimal transfer: access permissions only
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bit2= This is not a parameter. Do not report if ignored
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@return <0 severe error , 0 failure , 1 success ,
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2 regularly not installed (disallowed device, UNIX domain socket)
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*/
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int Xorriso_tree_restore_node(struct XorrisO *xorriso, IsoNode *node,
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char *img_path, char *disk_path, int flag)
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{
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int ret= 0, write_fd= -1, wanted, wret;
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char *what= "[unknown filetype]", sfe[5*SfileadrL], buf[32*1024];
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char *what= "[unknown filetype]", sfe[5*SfileadrL], sfe2[5*SfileadrL];
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char buf[32*1024];
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char *link_target;
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off_t todo, size;
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void *stream2= NULL;
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void *data_stream= NULL;
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mode_t mode;
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dev_t dev= 0;
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if(LIBISO_ISDIR(node)) {
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what= "directory";
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@ -2456,8 +2543,10 @@ int Xorriso_tree_restore_node(struct XorrisO *xorriso, IsoNode *node,
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} else if(LIBISO_ISREG(node)) {
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what= "regular file";
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/* >>> need to exploit node rather than img_path */
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ret= Xorriso_iso_file_open(xorriso, img_path, &stream2, 0);
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ret= Xorriso_iso_file_open(xorriso, img_path, &data_stream, 0);
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if(ret<=0)
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goto ex;
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write_fd= open(disk_path,O_WRONLY|O_EXCL|O_CREAT);
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@ -2468,7 +2557,7 @@ int Xorriso_tree_restore_node(struct XorrisO *xorriso, IsoNode *node,
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wanted= sizeof(buf);
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if(wanted>todo)
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wanted= todo;
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ret= Xorriso_iso_file_read(xorriso, stream2, buf, wanted, 0);
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ret= Xorriso_iso_file_read(xorriso, data_stream, buf, wanted, 0);
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if(ret<=0)
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break;
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wret= write(write_fd, buf, ret);
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@ -2484,40 +2573,77 @@ int Xorriso_tree_restore_node(struct XorrisO *xorriso, IsoNode *node,
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}
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close(write_fd);
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write_fd= -1;
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Xorriso_iso_file_close(xorriso, &stream2, 0);
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stream2= NULL;
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Xorriso_iso_file_close(xorriso, &data_stream, 0);
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data_stream= NULL;
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ret= (todo==0);
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} else if(LIBISO_ISLNK(node)) {
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what= "symbolic link";
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goto not_this_type;
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/* >>> restore symbolic link */;
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link_target= (char *) iso_symlink_get_dest((IsoSymlink *) node);
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ret= symlink(link_target, disk_path);
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} else if(LIBISO_ISCHR(node)) {
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what= "character device";
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if(xorriso->allow_restore!=2) {
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ignored:;
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if(!(flag&4)) {
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sprintf(xorriso->info_text, "Ignored file type: %s %s = %s", what,
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Text_shellsafe(img_path,sfe,0), Text_shellsafe(disk_path,sfe2,0));
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Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
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}
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{ret= 2; goto ex;}
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}
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#ifdef Xorriso_can_get_dev_T
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mode= S_IFCHR | 0777;
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ret= Xorriso_node_get_dev(xorriso, node, img_path, &dev, 0);
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if(ret<=0)
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goto ex;
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if(dev == (dev_t) 1) {
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probably_damaged:;
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sprintf(xorriso->info_text,
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"Most probably damaged device file not restored: mknod %s %s 0 1",
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Text_shellsafe(disk_path, sfe, 0), LIBISO_ISCHR(node) ? "c" : "b");
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Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
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ret= 0; goto ex;
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}
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ret= mknod(disk_path, mode, dev);
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#else
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goto not_this_type;
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/* >>> restore character device */;
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#endif
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} else if(LIBISO_ISBLK(node)) {
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what= "block device";
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if(xorriso->allow_restore!=2)
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goto ignored;
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#ifdef Xorriso_can_get_dev_T
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mode= S_IFBLK | 0777;
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ret= Xorriso_node_get_dev(xorriso, node, img_path, &dev, 0);
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if(ret<=0)
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goto ex;
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if(dev == (dev_t) 1)
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goto probably_damaged;
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ret= mknod(disk_path, mode, dev);
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#else
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goto not_this_type;
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/* >>> restore block device */;
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#endif
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} else if(LIBISO_ISFIFO(node)) {
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what= "named pipe";
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goto not_this_type;
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/* >>> restore fifo */;
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mode= S_IFIFO | 0777;
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ret= mknod(disk_path, mode, dev);
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} else if(LIBISO_ISSOCK(node)) {
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what= "";
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/* restoring a socket file makes no sense */;
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what= "unix socket";
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/* Restoring a socket file is not possible. One rather needs to restart
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the service which temporarily created the socket. */
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goto ignored;
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} else {
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#ifndef Xorriso_can_get_dev_T
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not_this_type:;
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#endif
|
||||
sprintf(xorriso->info_text, "Cannot restore file type '%s'", what);
|
||||
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
|
||||
ret= 0; goto ex;
|
||||
@ -2530,11 +2656,15 @@ cannot_restore:;
|
||||
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
|
||||
ret= 0; goto ex;
|
||||
}
|
||||
if(LIBISO_ISLNK(node))
|
||||
ret= 1;
|
||||
else
|
||||
ret= Xorriso_restore_properties(xorriso, disk_path, node, flag&1);
|
||||
ex:;
|
||||
if(write_fd>0)
|
||||
close(write_fd);
|
||||
Xorriso_iso_file_close(xorriso, &stream2, 0);
|
||||
if(data_stream!=NULL)
|
||||
Xorriso_iso_file_close(xorriso, &data_stream, 0);
|
||||
return(ret);
|
||||
}
|
||||
|
||||
@ -2718,14 +2848,15 @@ attach_source:;
|
||||
img_path_pt= img_path;
|
||||
|
||||
ret= Xorriso_tree_restore_node(xorriso, node, img_path_pt, path,
|
||||
!!(flag&64));
|
||||
(flag&4) | !!(flag&64));
|
||||
if(ret<=0) {
|
||||
sprintf(xorriso->info_text, "Restoring failed: %s = %s",
|
||||
Text_shellsafe(img_path,sfe,0), Text_shellsafe(disk_path,sfe2,0));
|
||||
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
|
||||
return(0);
|
||||
}
|
||||
|
||||
if(ret==2)
|
||||
return(3);
|
||||
xorriso->pacifier_count++;
|
||||
if(xorriso->pacifier_count%100 && !(flag&2))
|
||||
Xorriso_pacifier_callback(xorriso, "files restored",
|
||||
|
||||
Loading…
Reference in New Issue
Block a user