libburnia/libisoburn
2
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

New options -mount and -mount_cmd

Browse Source
This commit is contained in:
Thomas Schmitt
2008-12-05 17:17:29 +00:00
parent e7ab799c76
commit 8e131041a4
6 changed files with 564 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

168
xorriso/xorrisoburn.c
View File

@ -20,6 +20,7 @@
#include <time.h>
#include <fcntl.h>
#include <utime.h>
#include <wait.h>
/* for -charset */
#include <iconv.h>
@ -524,7 +525,7 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
dinfo= out_dinfo;
} else if((flag&3)==2 && xorriso->in_drive_handle!=NULL) {
ret= Xorriso_get_drive_handles(xorriso, &in_dinfo, &in_drive,
"on attempt to compare new indev with outdev", 0);
"on attempt to compare new outdev with indev", 0);
if(ret<=0)
goto ex;
ret= burn_drive_equals_adr(in_drive, libburn_adr, 1);
@ -8412,3 +8413,168 @@ int Xorriso_get_relax_text(struct XorrisO *xorriso, char mode[1024],
}
/**
@param flag bit0= print mount command to result channel rather than
performing it
*/
int Xorriso_mount(struct XorrisO *xorriso, char *dev, int adr_mode,
char *adr_value, char *cmd, int flag)
{
int ret, lba, track, session, params_flag= 0, is_safe= 0, is_extra_drive= 0;
int give_up= 0;
char volid[33], *devadr, mount_command[SfileadrL], adr_data[163], *adr_pt;
char *dev_path, libburn_adr[BURN_DRIVE_ADR_LEN + SfileadrL];
char sfe[5 * SfileadrL], *dpt;
struct stat stbuf;
struct burn_drive_info *dinfo= NULL;
struct burn_drive *drive= NULL;
devadr= dev;
adr_pt= adr_value;
if(strcmp(dev, "indev") == 0) {
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to perform -mount \"indev\"", 0);
if(ret<=0)
goto ex;
devadr= xorriso->indev;
if(xorriso->in_drive_handle == xorriso->out_drive_handle)
give_up= 3;
else
give_up= 1;
} else if(strcmp(dev, "outdev") == 0) {
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to perform -mount \"outdev\"",
2);
if(ret<=0)
goto ex;
devadr= xorriso->outdev;
if(xorriso->in_drive_handle == xorriso->out_drive_handle)
give_up= 3;
else
give_up= 2;
} else {
is_extra_drive= 1;
dev_path= dev;
if(strncmp(dev_path, "stdio:", 6) == 0)
dev_path+= 6;
/* do only accept regular files and block devices */
ret= stat(dev_path, &stbuf);
if(ret == -1) {
sprintf(xorriso->info_text, "Cannot determine properties of file %s",
Text_shellsafe(dev_path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
if(!(S_ISREG(stbuf.st_mode) || S_ISBLK(stbuf.st_mode))) {
sprintf(xorriso->info_text,
"File object is not suitable as mount device: %s",
Text_shellsafe(dev_path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
/* Aquire drive as direct libburn address or via stdio: prefix */
ret= burn_drive_convert_fs_adr(dev, libburn_adr);
Xorriso_process_msg_queues(xorriso,0);
if(ret < 0)
{ret= -1; goto ex;}
if(ret == 0 && strncmp(dev, "stdio:", 6) != 0)
sprintf(libburn_adr, "stdio:%s", dev);
ret= isoburn_drive_aquire(&dinfo, libburn_adr, 1);
Xorriso_process_msg_queues(xorriso,0);
if(ret <= 0)
{ret= 0; goto ex;}
drive= dinfo[0].drive;
}
if(adr_mode == 4 && strlen(adr_pt) <= 80) {
ret= Xorriso__bourne_to_reg(adr_pt, adr_data, 0);
if(ret == 1) {
params_flag|= 4;
adr_pt= adr_data;
}
}
ret= isoburn_get_mount_params(drive, adr_mode, adr_pt, &lba, &track,
&session, volid, params_flag);
Xorriso_process_msg_queues(xorriso,0);
if(ret <= 0)
goto ex;
if(session <= 0 || track <= 0 || ret == 2) {
Xorriso_msgs_submit(xorriso, 0,
"-mount : Given address does not point to an ISO 9660 session",
0, "FAILURE", 0);
ret= 0; goto ex;
}
if(strstr(devadr, "stdio:") == devadr)
devadr+= 6;
ret= Xorriso_make_mount_cmd(xorriso, cmd, lba, track, session, volid, devadr,
mount_command, 0);
if(ret <= 0)
goto ex;
if(ret == 2)
is_safe= 1;
if(is_extra_drive) {
isoburn_drive_release(drive, 0);
burn_drive_info_free(dinfo);
drive= NULL;
} else if(give_up > 0 && !(flag & 1)) {
Xorriso_give_up_drive(xorriso, give_up);
if(ret <= 0)
goto ex;
}
Xorriso_process_msg_queues(xorriso,0);
sprintf(xorriso->info_text, "Volume id : %s\n",
Text_shellsafe(volid, sfe, 0));
Xorriso_info(xorriso, 0);
if(flag & 1) {
sprintf(xorriso->result_line, "%s\n", mount_command);
Xorriso_result(xorriso,0);
} else {
sprintf(xorriso->info_text, "Mount command: %s\n", mount_command);
Xorriso_info(xorriso, 0);
if(geteuid() != getuid() || getgid() != getegid()) {
Xorriso_msgs_submit(xorriso, 0,
"-mount : Detected own setuid/gid identity. Will not perform mount command.",
0, "SORRY", 0);
sprintf(xorriso->result_line, "%s\n", mount_command);
Xorriso_result(xorriso,0);
} else if(!is_safe) {
Xorriso_msgs_submit(xorriso, 0,
"-mount : Will not perform mount command which stems from command template.",
0, "SORRY", 0);
sprintf(xorriso->result_line, "%s\n", mount_command);
Xorriso_result(xorriso,0);
} else {
/* >>> find safer way to perform command */;
ret= system(mount_command);
if(WIFEXITED(ret) && WEXITSTATUS(ret) != 0) {
sprintf(xorriso->info_text,
"-mount : mount command failed with exit value %d",
(int) WEXITSTATUS(ret));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
sprintf(xorriso->info_text, "Mounted session %d of device %s",
session, Text_shellsafe(dev_path, sfe, 0));
dpt= strchr(cmd, ':');
if(dpt == NULL)
dpt= cmd;
sprintf(xorriso->info_text + strlen(xorriso->info_text),
" as directory %s\n", Text_shellsafe(dpt + 1, sfe, 0));
Xorriso_info(xorriso, 0);
}
}
ret= 1;
ex:;
if(is_extra_drive && drive != NULL) {
isoburn_drive_release(drive, 0);
burn_drive_info_free(dinfo);
Xorriso_process_msg_queues(xorriso,0);
}
return(ret);
}