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libisoburn/xorriso/disk_ops.c

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/* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
Copyright 2007-2024 Thomas Schmitt, <scdbackup@gmx.net>
Provided under GPL version 2 or later.
This file contains the implementation of actions on onjects of disk
filesystems.
*/
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include <ctype.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <time.h>
#include <fcntl.h>
#include <errno.h>
#include <pwd.h>
#include <grp.h>
/* O_BINARY is needed for Cygwin but undefined elsewhere */
#ifndef O_BINARY
#define O_BINARY 0
#endif
#include "xorriso.h"
#include "xorriso_private.h"
#include "xorrisoburn.h"
/* @param flag bit0= simple readlink(): no normalization, no multi-hop
bit1= this is potentially a recursion
*/
int Xorriso_resolve_link(struct XorrisO *xorriso, char *link_path,
char result_path[SfileadrL], int flag)
{
ssize_t l;
struct stat stbuf;
int link_count= 0, ret, show_errno= 0;
char *buf= NULL, *dirbuf= NULL, *lpt, *spt;
static int link_limit= 100;
if(flag & 1) {
xorriso->resolve_link_rec_count++;
if(xorriso->resolve_link_rec_count > xorriso->resolve_link_rec_limit) {
Xorriso_msgs_submit(xorriso, 0, link_path, 0, "ERRFILE", 0);
sprintf(xorriso->info_text, "Too many link recursions before : ");
Text_shellsafe(link_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, show_errno,
"FAILURE", 0);
{ret= 0; goto ex;}
}
} else
xorriso->resolve_link_rec_count= 0;
Xorriso_alloc_meM(buf, char, SfileadrL);
Xorriso_alloc_meM(dirbuf, char, SfileadrL);
if(!(flag&1))
if(stat(link_path, &stbuf)==-1)
if(errno==ELOOP) {
show_errno= errno;
goto too_many_hops;
}
lpt= link_path;
while(1) {
l= readlink(lpt, buf, SfileadrL-1);
if(l==-1) {
handle_error:;
Xorriso_msgs_submit(xorriso, 0, link_path, 0, "ERRFILE", 0);
sprintf(xorriso->info_text, "Cannot obtain link target of : ");
Text_shellsafe(link_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE",0);
handle_abort:;
if(strcmp(lpt, link_path)!=0) {
sprintf(xorriso->info_text,
"Problem occurred with intermediate path : ");
Text_shellsafe(lpt, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
}
{ret= 0; goto ex;}
}
buf[l]= 0;
if(l==0) {
Xorriso_msgs_submit(xorriso, 0, link_path, 0, "ERRFILE", 0);
sprintf(xorriso->info_text, "Empty link target with : ");
Text_shellsafe(link_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
goto handle_abort;
}
if(flag&1) {
strcpy(result_path, buf);
{ret= 1; goto ex;}
}
/* normalize relative to disk_path */
if(Sfile_str(dirbuf, lpt, 0)<=0)
{ret= -1; goto ex;}
while(1) {
spt= strrchr(dirbuf,'/');
if(spt!=NULL) {
*spt= 0;
if(*(spt+1)!=0)
break;
} else
break;
}
ret= Xorriso_normalize_img_path(xorriso, dirbuf, buf, result_path, 2|4);
if(ret<=0) {
goto ex;
}
if(lstat(result_path, &stbuf)==-1) {
lpt= result_path;
goto handle_error;
}
if(!S_ISLNK(stbuf.st_mode))
break;
lpt= result_path;
link_count++;
if(link_count>link_limit) {
too_many_hops:;
Xorriso_msgs_submit(xorriso, 0, link_path, 0, "ERRFILE", 0);
sprintf(xorriso->info_text, "Too many link hops with : ");
Text_shellsafe(link_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, show_errno,
"FAILURE", 0);
{ret= 0; goto ex;}
}
}
ret= 1;
ex:;
Xorriso_free_meM(buf);
Xorriso_free_meM(dirbuf);
if(xorriso->resolve_link_rec_count > 0)
xorriso->resolve_link_rec_count--;
return(ret);
}
int Xorriso_convert_uidstring(struct XorrisO *xorriso, char *uid_string,
uid_t *uid, int flag)
{
double num= 0.0;
char text[80];
struct passwd *pwd;
sscanf(uid_string, "%lf", &num);
sprintf(text,"%.f",num);
if(strcmp(text,uid_string)==0) {
*uid= num;
return(1);
}
pwd= getpwnam(uid_string);
if(pwd==NULL) {
sprintf(xorriso->info_text, "-uid: Not a known user: '%s'", uid_string);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
return(0);
}
*uid= pwd->pw_uid;
return(1);
}
int Xorriso_convert_gidstring(struct XorrisO *xorriso, char *gid_string,
gid_t *gid, int flag)
{
double num= 0.0;
char text[80];
struct group *grp;
sscanf(gid_string, "%lf", &num);
sprintf(text,"%.f",num);
if(strcmp(text,gid_string)==0) {
*gid= num;
return(1);
}
grp= getgrnam(gid_string);
if(grp==NULL) {
sprintf(xorriso->info_text, "-gid: Not a known group: '%s'", gid_string);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
return(0);
}
*gid= grp->gr_gid;
return(1);
}
int Xorriso_convert_modstring(struct XorrisO *xorriso, char *cmd, char *mode,
mode_t *mode_and, mode_t *mode_or, int flag)
{
int who_val= 0;
char *mpt, *vpt, *opt;
unsigned int num= 0;
mode_t mode_val,mask;
*mode_and= ~0;
*mode_or= 0;
if(mode[0]=='0') {
*mode_and= 0;
sscanf(mode,"%o",&num);
*mode_or= num;
} else if(strchr(mode,'+')!=NULL || strchr(mode,'-')!=NULL
|| strchr(mode,'=')!=NULL) {
/* [ugoa][+-][rwxst] */;
for(mpt= mode; mpt!=NULL; mpt= strchr(mpt, ',')) {
if(*mpt==',')
mpt++;
if(strlen(mpt)<2)
goto unrecognizable;
who_val= 0;
for(vpt= mpt; *vpt!='+' && *vpt!='-' && *vpt!='='; vpt++) {
if(*vpt=='u')
who_val|= 4;
else if(*vpt=='g')
who_val|= 2;
else if(*vpt=='o')
who_val|= 1;
else if(*vpt=='a')
who_val|= 7;
else
goto unrecognizable;
}
opt= vpt;
mode_val= 0;
for(vpt= opt+1; *vpt!=0 && *vpt!=','; vpt++) {
if(*vpt=='r') {
if(who_val&4)
mode_val|= S_IRUSR;
if(who_val&2)
mode_val|= S_IRGRP;
if(who_val&1)
mode_val|= S_IROTH;
} else if(*vpt=='w') {
if(who_val&4)
mode_val|= S_IWUSR;
if(who_val&2)
mode_val|= S_IWGRP;
if(who_val&1)
mode_val|= S_IWOTH;
} else if(*vpt=='x') {
if(who_val&4)
mode_val|= S_IXUSR;
if(who_val&2)
mode_val|= S_IXGRP;
if(who_val&1)
mode_val|= S_IXOTH;
} else if(*vpt=='s') {
if(who_val&4)
mode_val|= S_ISUID;
if(who_val&2)
mode_val|= S_ISGID;
} else if(*vpt=='t') {
if(who_val&1)
mode_val|= S_ISVTX;
} else
goto unrecognizable;
}
if(*opt=='+') {
(*mode_or)|= mode_val;
} else if(*opt=='=') {
mask= 0;
if(who_val&1)
mask|= S_IRWXO|S_ISVTX;
if(who_val&2)
mask|= S_IRWXG|S_ISGID;
if(who_val&4)
mask|= S_IRWXU|S_ISUID;
(*mode_and)&= ~(mask);
(*mode_or)= ((*mode_or) & ~mask) | mode_val;
} else if(*opt=='-') {
(*mode_or)&= ~mode_val;
(*mode_and)&= ~mode_val;
}
}
} else {
unrecognizable:;
sprintf(xorriso->info_text,
"%s: Unrecognizable or faulty permission mode ", cmd);
Text_shellsafe(mode, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
return(0);
}
return(1);
}
/* @param flag bit0= for Xorriso_msgs_submit: use pager
bit1= do not issue warnings
bit2= warn about dangling link
bit3= report sorry if dangling link
*/
int Xorriso_hop_link(struct XorrisO *xorriso, char *link_path,
struct LinkiteM **link_stack, struct stat *stbuf, int flag)
{
int ret;
char *severity;
struct LinkiteM *litm;
if(*link_stack != NULL) {
if(Linkitem_get_link_count(*link_stack, 0) >= xorriso->follow_link_limit) {
sprintf(xorriso->info_text,
"Too many symbolic links in single tree branch at : ");
Text_shellsafe(link_path, xorriso->info_text, 1);
if(!(flag&2))
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0,"WARNING",flag&1);
return(0);
}
}
ret= stat(link_path, stbuf);
if(ret == -1) {
if(flag & (4 | 8)) {
if(flag & 8)
severity= "SORRY";
else
severity= "WARNING";
sprintf(xorriso->info_text, "Non-existing link target with : ");
Text_shellsafe(link_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, severity,
flag & 1);
}
return(0);
}
ret= Linkitem_find(*link_stack, stbuf->st_dev, stbuf->st_ino, &litm, 0);
if(ret>0) {
sprintf(xorriso->info_text, "Detected symbolic link loop around : ");
Text_shellsafe(link_path, xorriso->info_text, 1);
if(!(flag&2))
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", flag&1);
return(0);
}
ret= Linkitem_new(&litm, link_path, stbuf->st_dev, stbuf->st_ino,
*link_stack, 0);
if(ret<=0) {
sprintf(xorriso->info_text,
"Cannot add new item to link loop prevention stack");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", flag&1);
return(-1);
}
*link_stack= litm;
return(1);
}
/* @param flag bit0= do not only sum up sizes but also print subdirs
bit1= this is a recursion
bit2= do not report result by Xorriso_result()
@return <=0 error , 1 ok , 2 could not open directory
*/
int Xorriso_show_dux_subs(struct XorrisO *xorriso,
char *abs_path, char *rel_path, off_t *size,
off_t boss_mem,
struct LinkiteM *link_stack,
int flag)
{
int i, ret, no_sort= 0, filec= 0, l, j, fc, no_dive, is_link;
char **filev= NULL, *namept;
off_t sub_size, report_size, mem= 0;
struct DirseQ *dirseq= NULL;
struct stat stbuf;
dev_t dir_dev;
struct LinkiteM *own_link_stack;
char *path= NULL, *show_path= NULL, *name= NULL, *sfe= NULL;
own_link_stack= link_stack;
namept= name;
*size= 0;
Xorriso_alloc_meM(sfe, char, 5 * SfileadrL);
Xorriso_alloc_meM(path, char, SfileadrL);
Xorriso_alloc_meM(show_path, char, SfileadrL);
Xorriso_alloc_meM(name, char, SfileadrL);
if(lstat(abs_path, &stbuf)==-1)
{ret= 2; goto ex;}
dir_dev= stbuf.st_dev;
if(S_ISLNK(stbuf.st_mode)) {
if(!(xorriso->do_follow_links || (xorriso->do_follow_param && !(flag&2))))
{ret= 2; goto ex;}
if(stat(abs_path, &stbuf)==-1)
{ret= 2; goto ex;}
if(dir_dev != stbuf.st_dev &&
!(xorriso->do_follow_mount || (xorriso->do_follow_param && !(flag&2))))
{ret= 2; goto ex;}
}
ret= Dirseq_new(&dirseq, abs_path, 1);
if(ret<0) {
sprintf(xorriso->info_text, "Cannot obtain disk directory iterator");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
{ret= -1; goto ex;}
}
if(ret==0)
{ret= 2; goto ex;}
while(1) {
Linkitem_reset_stack(&own_link_stack, link_stack, 0);
ret= Dirseq_next_adr(dirseq,name,0);
if(ret<0)
goto ex;
if(ret==0)
break;
sub_size= 0;
strcpy(show_path, rel_path);
if(Sfile_add_to_path(show_path, name, 0)<=0)
goto much_too_long;
strcpy(path, abs_path);
if(Sfile_add_to_path(path, name, 0)<=0) {
much_too_long:;
Xorriso_much_too_long(xorriso, strlen(path)+strlen(name)+1, 2);
{ret= -1; goto ex;}
}
no_dive= 0;
ret= lstat(path, &stbuf);
if(ret==-1)
continue;
is_link= S_ISLNK(stbuf.st_mode);
if(is_link && xorriso->do_follow_links) {
ret= Xorriso_hop_link(xorriso, path, &own_link_stack, &stbuf, 1);
if(ret<0)
{ret= -1; goto ex;}
if(ret!=1)
no_dive= 1;
}
if(!S_ISDIR(stbuf.st_mode))
no_dive= 1;
if(dir_dev != stbuf.st_dev && !xorriso->do_follow_mount)
no_dive= 1;
if(!no_dive) {
filec++;
l= strlen(rel_path)+1;
mem+= l;
if(l % sizeof(char *))
mem+= sizeof(char *)-(l % sizeof(char *));
if(flag&1) /* diving and counting is done further below */
continue;
ret= Xorriso_show_dux_subs(xorriso, path, show_path, &sub_size, boss_mem,
own_link_stack,2);
if(ret<0)
goto ex;
if(ret==0)
continue;
}
/*
sub_size+= stbuf.st_size+strlen(name)+1;
*/
sub_size+= stbuf.st_size+2048;
if(sub_size>0)
(*size)+= sub_size;
}
if(filec<=0 || !(flag&1))
{ret= 1; goto ex;}
/* Try to get a sorted list of directory names */
mem+= (filec+1)*sizeof(char *);
ret= Xorriso_check_temp_mem_limit(xorriso, mem+boss_mem, 2);
if(ret<0)
goto ex;
Dirseq_rewind(dirseq, 0);
if(ret==0) {
no_sort_possible:;
no_sort= 1;
} else {
filev= (char **) calloc(filec+1, sizeof(char *));
if(filev==NULL)
goto no_sort_possible;
else {
for(i= 0; i<filec; i++)
filev[i]= NULL;
fc= 0;
while(1) {
ret= Dirseq_next_adr(dirseq,name,0);
if(ret<0)
goto ex;
if(ret==0)
break;
strcpy(path, abs_path);
if(Sfile_add_to_path(path, name, 0)<=0)
goto much_too_long;
ret= lstat(path,&stbuf);
if(ret==-1)
continue;
is_link= S_ISLNK(stbuf.st_mode);
if(is_link && xorriso->do_follow_links) {
ret= stat(path,&stbuf);
if(ret==-1)
continue;
}
if(!S_ISDIR(stbuf.st_mode))
continue;
if(dir_dev != stbuf.st_dev && !xorriso->do_follow_mount)
continue;
if(fc>=filec) { /* Number of files changed (or programming error) */
revoke_sorting:;
for(j=0; j<fc; j++)
free((char *) filev[j]);
free((char *) filev);
filev= NULL;
goto no_sort_possible;
}
filev[fc]= strdup(name);
if(filev[fc]==NULL)
goto revoke_sorting;
fc++;
}
filec= fc;
if(filec>1)
Sort_argv(filec, filev, 0);
}
}
for(i= 0; (no_sort || i<filec) && !(xorriso->request_to_abort); i++) {
Linkitem_reset_stack(&own_link_stack, link_stack, 0);
if(no_sort) {
ret= Dirseq_next_adr(dirseq,name,0);
if(ret<0)
goto ex;
if(ret==0)
break;
} else
namept= filev[i];
sub_size= 0;
strcpy(show_path, rel_path);
if(Sfile_add_to_path(show_path, namept, 0)<=0)
goto much_too_long;
strcpy(path, abs_path);
if(Sfile_add_to_path(path, namept, 0)<=0)
goto much_too_long;
no_dive= 0;
ret= lstat(path,&stbuf);
if(ret==-1)
continue;
is_link= S_ISLNK(stbuf.st_mode);
if(is_link && xorriso->do_follow_links) {
ret= Xorriso_hop_link(xorriso, path, &own_link_stack, &stbuf, 1);
if(ret<0)
{ret= -1; goto ex;}
if(ret!=1)
continue;
}
if(!S_ISDIR(stbuf.st_mode))
continue;
if(dir_dev == stbuf.st_dev || xorriso->do_follow_mount) {
ret= Xorriso_show_dux_subs(xorriso, path, show_path, &sub_size,
boss_mem+mem, own_link_stack, 2|(flag&1));
if(ret<0)
goto ex;
}
/*
sub_size+= stbuf.st_size+strlen(namept)+1;
*/
sub_size+= stbuf.st_size+2048;
if(sub_size>0)
(*size)+= sub_size;
report_size= sub_size/1024;
if(report_size*1024<sub_size)
report_size++;
if(!(flag & 4)) {
if(xorriso->sh_style_result)
sprintf(xorriso->result_line, "%-7.f ",(double) (report_size));
else
sprintf(xorriso->result_line, "%7.f ",(double) (report_size));
sprintf(xorriso->result_line+strlen(xorriso->result_line), "%s\n",
Xorriso_esc_filepath(xorriso,show_path, sfe, 0));
Xorriso_result(xorriso, 0);
}
}
ret= 1;
ex:;
Xorriso_free_meM(sfe);
Xorriso_free_meM(path);
Xorriso_free_meM(show_path);
Xorriso_free_meM(name);
Linkitem_reset_stack(&own_link_stack, link_stack, 0);
Dirseq_destroy(&dirseq, 0);
if(filev!=NULL) {
for(i=0; i<filec; i++)
if(filev[i]!=NULL)
free((char *) filev[i]);
free((char *) filev);
}
return(ret);
}
/* @param flag bit1= add '+' to perms
bit2-7: hidden_state :
bit2= hide in ISO/RR
bit3= hide in Joliet
bit4= hide in HFS+
*/
int Xorriso__mode_to_perms(mode_t st_mode, char perms[11], int flag)
{
int hidden_state;
strcpy(perms,"--------- ");
if(st_mode&S_IRUSR) perms[0]= 'r';
if(st_mode&S_IWUSR) perms[1]= 'w';
if(st_mode&S_IXUSR) perms[2]= 'x';
if(st_mode&S_ISUID) {
if(st_mode&S_IXUSR)
perms[2]= 's';
else
perms[2]= 'S';
}
if(st_mode&S_IRGRP) perms[3]= 'r';
if(st_mode&S_IWGRP) perms[4]= 'w';
if(st_mode&S_IXGRP) perms[5]= 'x';
if(st_mode&S_ISGID) {
if(st_mode&S_IXGRP)
perms[5]= 's';
else
perms[5]= 'S';
}
if(st_mode&S_IROTH) perms[6]= 'r';
if(st_mode&S_IWOTH) perms[7]= 'w';
if(st_mode&S_IXOTH) perms[8]= 'x';
if(st_mode&S_ISVTX) {
if(st_mode&S_IXOTH)
perms[8]= 't';
else
perms[8]= 'T';
}
hidden_state= (flag >> 2) & 63;
if(hidden_state == 1)
perms[9]= 'I';
else if(hidden_state == 2)
perms[9]= 'J';
else if(hidden_state == 4)
perms[9]= 'A';
else if(hidden_state)
perms[9]= 'H';
if(flag & 2) {
if(hidden_state)
perms[9]= tolower(perms[9]);
else
perms[9]= '+';
}
return(1);
}
/* @param flag bit0= recognize Xorriso_IFBOOT as file type
bit1= add '+' to perms
bit2-7: hidden_state :
bit2= hide in ISO/RR
bit3= hide in Joliet
bit4= hide in HFS+
*/
int Xorriso_format_ls_l(struct XorrisO *xorriso, struct stat *stbuf, int flag)
{
int show_major_minor= 0, high_shift= 0, high_mask= 0;
char *rpt, perms[11], mm_text[80];
mode_t st_mode;
dev_t dev, major, minor;
rpt= xorriso->result_line;
rpt[0]= 0;
st_mode= stbuf->st_mode;
if(S_ISDIR(st_mode))
strcat(rpt, "d");
else if(S_ISREG(st_mode)) {
strcat(rpt, "-");
} else if(S_ISLNK(st_mode))
strcat(rpt, "l");
else if(S_ISBLK(st_mode)) {
strcat(rpt, "b");
show_major_minor= 1;
} else if(S_ISCHR(st_mode)) {
strcat(rpt, "c");
show_major_minor= 1;
} else if(S_ISFIFO(st_mode))
strcat(rpt, "p");
else if(S_ISSOCK(st_mode))
strcat(rpt, "s");
else if((flag & 1) && (st_mode & S_IFMT) == Xorriso_IFBOOT)
strcat(rpt, "e");
else
strcat(rpt, "?");
Xorriso__mode_to_perms(st_mode, perms, flag & (2 | 252));
strcat(rpt, perms);
sprintf(rpt+strlen(rpt)," %3u ",(unsigned int) stbuf->st_nlink);
sprintf(rpt+strlen(rpt), "%-8lu ", (unsigned long) stbuf->st_uid);
sprintf(rpt+strlen(rpt), "%-8lu ", (unsigned long) stbuf->st_gid);
if(show_major_minor) {
dev= stbuf->st_rdev;
/* according to /usr/include/sys/sysmacros.h : gnu_dev_major(),_minor()
>>> but this looks as if it should go to some system dependency
>>> in FreeBSD dev_t is 32 bit
*/
if(sizeof(dev_t) > 4) {
high_shift= 32;
high_mask= ~0xfff;
}
major= (((dev >> 8) & 0xfff) |
((unsigned int) (dev >> high_shift) & high_mask))
& 0xffffffff;
minor= (((dev & 0xff) | ((unsigned int) (dev >> 12) & ~0xff))) & 0xffffffff;
sprintf(mm_text, "%u,%u", (unsigned int) major, (unsigned int) minor);
sprintf(rpt+strlen(rpt), "%8s ", mm_text);
} else
sprintf(rpt+strlen(rpt), "%8.f ", (double) stbuf->st_size);
Ftimetxt(stbuf->st_mtime, rpt+strlen(rpt), 0);
strcat(rpt, " ");
return(1);
}
struct DirentrY {
char *adr;
struct DirentrY *next;
};
int Xorriso_sorted_dir_x(struct XorrisO *xorriso, char *dir_path,
int *filec, char ***filev, off_t boss_mem, int flag)
{
int count= 0, ret;
char *name= NULL;
struct DirseQ *dirseq= NULL;
off_t mem;
struct DirentrY *last= NULL, *current= NULL;
Xorriso_alloc_meM(name, char, SfileadrL);
*filec= 0;
*filev= NULL;
mem= boss_mem;
ret= Dirseq_new(&dirseq, dir_path, 1);
if(ret<=0)
goto ex;
while(1) { /* loop over directory content */
ret= Dirseq_next_adr(dirseq,name,0);
if(ret==0)
break;
if(ret<0)
goto ex;
mem+= strlen(name)+8+sizeof(struct DirentrY)+sizeof(char *);
if(mem>xorriso->temp_mem_limit)
{ret= 0; goto ex;}
current= (struct DirentrY *) calloc(1, sizeof(struct DirentrY));
if(current==NULL) {
Xorriso_no_malloc_memory(xorriso, NULL, 0);
{ret= -1; goto ex;}
}
current->adr= NULL;
current->next= last;
last= current;
last->adr= strdup(name);
if(last->adr==NULL) {
Xorriso_no_malloc_memory(xorriso, NULL, 0);
{ret= -1; goto ex;}
}
count++;
}
*filec= count;
if(count==0)
{ret= 1; goto ex;}
(*filev)= (char **) calloc(count, sizeof(char *));
if(*filev==NULL) {
Xorriso_no_malloc_memory(xorriso, NULL, 0);
{ret= -1; goto ex; }
}
count= 0;
for(current= last; current!=NULL; current= last) {
last= current->next;
(*filev)[count++]= current->adr;
free((char *) current);
}
Sort_argv(*filec, *filev, 0);
ret= 1;
ex:;
for(current= last; current!=NULL; current= last) {
last= current->next;
free(current->adr);
free((char *) current);
}
Xorriso_free_meM(name);
Dirseq_destroy(&dirseq, 0);
return(ret);
}
/* @param flag bit0= long format
bit1= do not print count of nodes
bit2= du format
bit3= print directories as themselves (ls -d)
*/
int Xorriso_lsx_filev(struct XorrisO *xorriso, char *wd,
int filec, char **filev, off_t boss_mem, int flag)
{
int i, ret, was_error= 0, dfilec= 0, pass, passes;
char *path= NULL, *acl_text= NULL;
char *rpt, *link_target= NULL, **dfilev= NULL;
off_t size;
struct stat stbuf;
Xorriso_alloc_meM(path, char, SfileadrL);
Xorriso_alloc_meM(link_target, char, SfileadrL);
rpt= xorriso->result_line;
Sort_argv(filec, filev, 0);
/* Count valid nodes, warn of invalid ones */
for(i= 0; i<filec; i++) {
ret= Xorriso_make_abs_adr(xorriso, wd, filev[i], path, 1|2|4|8);
if(ret<=0) {
was_error++;
continue;
}
ret= lstat(path, &stbuf);
if(ret==-1) {
sprintf(xorriso->info_text, "Not found in local filesystem: ");
Text_shellsafe(path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 1);
was_error++;
continue;
}
}
if((flag&8) && !(flag&(2|4))) {
sprintf(xorriso->info_text,"Valid local files found: %d\n",filec-was_error);
Xorriso_info(xorriso,1);
if(filec-was_error<=0)
{ret= !was_error; goto ex;}
}
passes= 1+!(flag&(4|8));
for(pass= 0; pass<passes; pass++)
for(i= 0; i<filec && !(xorriso->request_to_abort); i++) {
ret= Xorriso_make_abs_adr(xorriso, wd, filev[i], path, 1|2|4);
if(ret<=0)
continue;
ret= lstat(path, &stbuf);
if(ret==-1)
continue;
if(S_ISLNK(stbuf.st_mode) &&
(xorriso->do_follow_links || xorriso->do_follow_param)) {
ret= stat(path, &stbuf);
if(ret==-1)
ret= lstat(path, &stbuf);
if(ret==-1)
continue;
}
if(S_ISDIR(stbuf.st_mode) && !(flag&(4|8))) {
if(pass==0)
continue;
if(filec>1) {
strcpy(xorriso->result_line, "\n");
Xorriso_result(xorriso,0);
Xorriso_esc_filepath(xorriso,filev[i], xorriso->result_line, 0);
strcat(xorriso->result_line, ":\n");
Xorriso_result(xorriso,0);
}
ret= Xorriso_sorted_dir_x(xorriso, path, &dfilec, &dfilev, boss_mem, 0);
if(ret<=0) {
/* >>> DirseQ loop and single item Xorriso_lsx_filev() */;
} else {
if(flag&1) {
sprintf(xorriso->result_line, "total %d\n", dfilec);
Xorriso_result(xorriso,0);
}
Xorriso_lsx_filev(xorriso, path,
dfilec, dfilev, boss_mem, (flag&1)|2|8);
}
if(dfilec>0)
Sfile_destroy_argv(&dfilec, &dfilev, 0);
continue;
} else
if(pass>0)
continue;
link_target[0]= 0;
rpt[0]= 0;
if((flag&5)==1) {
Xorriso_local_getfacl(xorriso, path, &acl_text, 16);
ret= Xorriso_format_ls_l(xorriso, &stbuf, (acl_text != NULL) << 1);
Xorriso_local_getfacl(xorriso, path, &acl_text, 1 << 15);
if(ret<=0)
continue;
if(S_ISLNK(stbuf.st_mode)) {
ret= Xorriso_resolve_link(xorriso, path, link_target, 1);
if(ret<=0)
link_target[0]= 0;
}
} else if(flag&4) { /* -dux or -dusx */
size= stbuf.st_size;
if(S_ISDIR(stbuf.st_mode)) {
ret= Xorriso_show_dux_subs(xorriso, path, filev[i], &size, boss_mem,
NULL, flag&1);
if(ret<0)
{ret= -1; goto ex;}
if(ret==0)
continue;
}
if(xorriso->sh_style_result)
sprintf(rpt, "%-7.f ",(double) (size/1024));
else
sprintf(rpt, "%7.f ",(double) (size/1024));
}
if(link_target[0]) {
Xorriso_esc_filepath(xorriso,filev[i], xorriso->result_line, 1);
strcat(xorriso->result_line, " -> ");
Xorriso_esc_filepath(xorriso,link_target, xorriso->result_line, 1 | 2);
} else {
Xorriso_esc_filepath(xorriso,filev[i], xorriso->result_line, 1);
}
strcat(xorriso->result_line, "\n");
Xorriso_result(xorriso, 0);
}
ret= !was_error;
ex:;
Xorriso_free_meM(path);
Xorriso_free_meM(link_target);
return(ret);
}
/*
@param flag >>> bit0= remove whole sub tree: rm -r
bit1= remove empty directory: rmdir
bit2= recursion: do not reassure in mode 2 "tree"
bit3= this is for overwriting and not for plain removal
bit4= count deleted files in xorriso->pacifier_count
bit5= with bit0 only remove directory content, not the directory
bit6= permission to call Xorriso_make_accessible()
@return <=0 = error
1 = removed leaf file object
2 = removed directory or tree
3 = did not remove on user revocation
*/
int Xorriso_rmx(struct XorrisO *xorriso, off_t boss_mem, char *path, int flag)
{
int ret, is_dir= 0, made_accessible= 0;
struct stat victim_stbuf;
struct DirseQ *dirseq= NULL;
char *sfe= NULL, *sub_path= NULL;
struct PermiteM *perm_stack_mem;
perm_stack_mem= xorriso->perm_stack;
/* Avoiding large local memory objects in order to save stack space */
sfe= malloc(5*SfileadrL);
sub_path= malloc(2*SfileadrL);
if(sfe==NULL || sub_path==NULL) {
Xorriso_no_malloc_memory(xorriso, &sfe, 0);
{ret= -1; goto ex;}
}
if(Xorriso_much_too_long(xorriso, strlen(path), 0)<=0)
{ret= 0; goto ex;}
ret= lstat(path, &victim_stbuf);
if(ret==-1) {
if((flag & 64) && errno == EACCES) {
ret= Xorriso_make_accessible(xorriso, path, 0);
if(ret < 0)
goto ex;
made_accessible= 1;
ret= lstat(path, &victim_stbuf);
}
if(ret==-1) {
sprintf(xorriso->info_text, "Cannot lstat(%s)",
Text_shellsafe(path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
{ret= 0; goto ex;}
}
}
if(strcmp(path, "/")==0) {
sprintf(xorriso->info_text, "May not delete root directory");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
{ret= 0; goto ex;}
}
if(S_ISDIR(victim_stbuf.st_mode))
is_dir= 1;
if(!is_dir) {
if(flag&2) { /* rmdir */
sprintf(xorriso->info_text, "%s in disk filesystem is not a directory",
Text_shellsafe(path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
} else {
if(flag&1) { /* rm -r */
#ifdef Osirrox_not_yeT
/* >>> */
struct stat *victim_node= NULL;
victim_node= &victim_stbuf;
if((xorriso->do_reassure==1 && !xorriso->request_not_to_ask) ||
(flag&32)) {
/* Iterate over subordinates and delete them */
mem= boss_mem;
ret= Xorriso_findi_iter(xorriso, (IsoDir *) victim_node, &mem,
&iter, &node_array, &node_count, &node_idx,
&node, 1|2);
if(ret<=0) {
cannot_create_iter:;
Xorriso_cannot_create_iter(xorriso, ret, 0);
ret= -1; goto ex;
}
pl= strlen(path);
strcpy(sub_path, path);
if(pl==0 || sub_path[pl-1]!='/') {
sub_path[pl++]= '/';
sub_path[pl]= 0;
}
sub_name= sub_path+pl;
while(1) {
ret= Xorriso_findi_iter(xorriso, (IsoDir *) victim_node, &mem, &iter,
&node_array, &node_count, &node_idx, &node, 0);
if(ret<0)
goto ex;
if(ret==0 || xorriso->request_to_abort)
break;
name= (char *) iso_node_get_name(node);
if(Xorriso_much_too_long(xorriso, pl+1+strlen(name), 0)<=0)
{ret= 0; goto rm_r_problem_handler;}
strcpy(sub_name, name);
ret= Xorriso_rmi(xorriso, iter, mem, sub_path, (flag&(1|2|8|16))|4);
if(ret==3 || ret<=0 || xorriso->request_to_abort) {
rm_r_problem_handler:;
not_removed= 1;
fret= Xorriso_eval_problem_status(xorriso, ret, 1|2);
if(fret<0)
goto dir_not_removed;
}
}
if(flag&32)
{ret= 2; goto ex;}
if(not_removed) {
dir_not_removed:;
sprintf(xorriso->info_text, "Directory not removed: %s",
Text_shellsafe(path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
if(ret>0)
ret= 3;
goto ex;
}
}
#else /* Osirrox_not_yeT */
sprintf(xorriso->info_text, "-rm_rx is not implemented yet");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
#endif /* !Osirrox_not_yeT */
} else {
if(!(flag&2)) { /* not rmdir */
sprintf(xorriso->info_text, "%s in disk filesystem is a directory",
Text_shellsafe(path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
ret= Dirseq_new(&dirseq, path, 1);
if(ret>0) {
ret= Dirseq_next_adr(dirseq, sfe, 0);
if(ret>0) {
sprintf(xorriso->info_text,
"Directory not empty on attempt to delete: %s",
Text_shellsafe(path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
}
}
}
if(xorriso->request_to_abort)
{ret= 3; goto ex;}
ret= Xorriso_reassure_restore(xorriso, path, (flag&(4|8)) | !!is_dir);
if(ret<=0 || ret==3)
goto ex;
if(is_dir)
ret= rmdir(path);
else
ret= unlink(path);
if(ret == -1) {
if((flag & 64) && errno == EACCES && !made_accessible) {
ret= Xorriso_make_accessible(xorriso, path, 0);
if(ret < 0)
goto ex;
made_accessible= 1;
if(is_dir)
ret= rmdir(path);
else
ret= unlink(path);
}
if(ret == -1) {
sprintf(xorriso->info_text, "Cannot delete from disk filesystem %s",
Text_shellsafe(path, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
ret= -1; goto ex;
}
}
if(flag&16)
xorriso->pacifier_count++;
ret= 1+!!is_dir;
ex:;
if(made_accessible)
Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso, 0);
if(sfe!=NULL)
free(sfe);
if(sub_path!=NULL)
free(sub_path);
Dirseq_destroy(&dirseq, 0);
return(ret);
}
/* @param flag bit0= recursion
*/
int Xorriso_findx_action(struct XorrisO *xorriso, struct FindjoB *job,
char *abs_path, char *show_path, int depth, int flag)
{
int ret= 0, type, action= 0, dpl= 0, compare_result, uret;
uid_t user= 0;
gid_t group= 0;
time_t date= 0;
mode_t mode_or= 0, mode_and= ~1;
char *target, *text_2, *wdi_mem= NULL, *disk_prefix, *iso_path= NULL;
char *basename;
struct FindjoB *subjob;
struct stat stbuf;
Xorriso_alloc_meM(iso_path, char, SfileadrL);
action= Findjob_get_action_parms(job, &target, &text_2, &user, &group,
&mode_and, &mode_or, &type, &date, &subjob, 0);
if(action<0)
action= 0;
if(action==15 || action==16 || action==18 || action==19 || action==20) {
/* in_iso , not_in_iso, add_missing , empty_iso_dir , is_full_in_iso */
Findjob_get_start_path(job, &disk_prefix, 0);
if(strncmp(abs_path, disk_prefix, strlen(disk_prefix))!=0)
{ret= -1; goto ex;}
dpl= strlen(disk_prefix);
if(strlen(target)+strlen(abs_path)-dpl >= SfileadrL)
{ret= -1; goto ex;}
if(abs_path[dpl]=='/')
dpl++;
ret= Xorriso_make_abs_adr(xorriso, target, abs_path+dpl, iso_path, 4);
if(ret<=0)
{goto ex;}
}
if(action==15) { /* in_iso */
ret= Xorriso_iso_lstat(xorriso, iso_path, &stbuf, 0);
if(ret<0)
{ret= 1; goto ex;}
Text_shellsafe(show_path, xorriso->result_line, 0);
strcat(xorriso->result_line, "\n");
Xorriso_result(xorriso, 0);
ret= 1;
} else if(action==16) { /* not_in_iso */
ret= Xorriso_compare_2_files(xorriso, abs_path, iso_path, abs_path+dpl,
&compare_result, 4);
if(ret<xorriso->find_compare_result)
xorriso->find_compare_result= ret;
if(ret>=0)
ret= 1;
} else if(action==18) { /* add_missing */
ret= Xorriso_compare_2_files(xorriso, abs_path, iso_path, abs_path+dpl,
&compare_result, 4|(1u<<31));
if(ret<xorriso->find_compare_result)
xorriso->find_compare_result= ret;
if(ret==0) {
uret= Xorriso_update_interpreter(xorriso, NULL, NULL, compare_result,
abs_path, iso_path, ((flag&1)<<2) | 2);
if(uret<=0)
ret= 0;
}
if(ret>=0)
ret= 1;
} else if(action==19) { /* empty_iso_dir */
ret= Xorriso_iso_lstat(xorriso, iso_path, &stbuf, 0);
if(ret<0)
{ret= 1; goto ex;}
if(!S_ISDIR(stbuf.st_mode))
{ret= 1; goto ex;}
ret= Xorriso_rmi(xorriso, NULL, (off_t) 0, iso_path, 1|32);
if(ret>0) {
sprintf(xorriso->info_text, "Emptied directory ");
Text_shellsafe(iso_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "UPDATE", 0);
}
} else if(action==20) { /* is_full_in_iso */
ret= Xorriso_iso_lstat(xorriso, iso_path, &stbuf, 0);
if(ret<0)
{ret= 1; goto ex;}
if(!S_ISDIR(stbuf.st_mode))
{ret= 1; goto ex;}
wdi_mem= strdup(xorriso->wdi);
if(wdi_mem == NULL) {
Xorriso_no_malloc_memory(xorriso, NULL, 0);
{ret= -1; goto ex;}
}
strcpy(xorriso->wdi, iso_path);
ret= Xorriso_ls(xorriso, 4|8);
strcpy(xorriso->wdi, wdi_mem);
if(ret>0) {
strcpy(xorriso->result_line, "d ");
Text_shellsafe(iso_path, xorriso->result_line, 1);
strcat(xorriso->result_line,
" (ISO) : non-empty directory (would not match mount point)\n");
Xorriso_result(xorriso,0);
}
{ret= 1; goto ex;}
} else if(action == 40) { /* estimate_size */
basename= strrchr(abs_path, '/');
if(basename != NULL)
basename++;
else
basename= abs_path;
ret= lstat(abs_path, &stbuf);
if(ret != -1)
ret= Xorriso_estimate_file_size(xorriso, job, basename, stbuf.st_mode,
stbuf.st_size, 0);
} else if(action == 44) { /* list_extattr */
ret= Xorriso_list_extattr(xorriso, NULL, abs_path, show_path, target, 2);
} else {
Xorriso_esc_filepath(xorriso,show_path, xorriso->result_line, 0);
strcat(xorriso->result_line, "\n");
Xorriso_result(xorriso, 0);
ret= 1;
}
ex:;
if(action==15 || action==16 || action==18 || action==19 || action==20)
if(xorriso->no_volset_present)
xorriso->request_to_abort= 1; /* Need an image. No use to try again. */
if(wdi_mem != NULL)
free(wdi_mem);
Xorriso_free_meM(iso_path);
return(ret);
}
/* @param flag bit0=recursion
*/
int Xorriso_findx(struct XorrisO *xorriso, struct FindjoB *job,
char *abs_dir_parm, char *dir_path,
struct stat *dir_stbuf, int depth,
struct LinkiteM *link_stack, int flag)
{
int ret,is_link, no_dive;
struct DirseQ *dirseq= NULL;
struct stat stbuf;
struct LinkiteM *own_link_stack;
char *abs_dir_path, *namept;
char *name= NULL, *path= NULL, *sfe= NULL;
char *abs_dir_path_data= NULL, *abs_path= NULL;
job->depth= depth;
if(xorriso->request_to_abort)
{ret= 0; goto ex;}
Xorriso_alloc_meM(sfe, char, 5*SfileadrL);
Xorriso_alloc_meM(name, char, SfileadrL);
Xorriso_alloc_meM(path, char, SfileadrL);
Xorriso_alloc_meM(abs_dir_path_data, char, SfileadrL);
Xorriso_alloc_meM(abs_path, char, SfileadrL);
own_link_stack= link_stack;
abs_dir_path= abs_dir_parm;
if(abs_dir_path[0]==0) {
ret= Xorriso_make_abs_adr(xorriso, xorriso->wdx, dir_path,
abs_dir_path_data, 1|2|8);
if(ret<=0)
goto ex;
abs_dir_path= abs_dir_path_data;
ret= Xorriso_path_is_excluded(xorriso, abs_dir_path, !(flag&1));
if(ret<0)
goto ex;
if(ret>0)
{ret= 0; goto ex;}
ret= lstat(abs_dir_path, dir_stbuf);
if(ret==-1)
{ret= 0; goto ex;}
if(S_ISLNK(dir_stbuf->st_mode) &&
(xorriso->do_follow_links || (xorriso->do_follow_param && !(flag&1))))
if(stat(abs_dir_path, &stbuf)!=-1)
if(dir_stbuf->st_dev == stbuf.st_dev ||
(xorriso->do_follow_mount || (xorriso->do_follow_param && !(flag&1))))
memcpy(dir_stbuf, &stbuf, sizeof(struct stat));
namept= strrchr(dir_path, '/');
if(namept==NULL)
namept= dir_path;
else
namept++;
ret= Findjob_test_2(xorriso, job, NULL, namept, dir_path, NULL, dir_stbuf,
0);
if(ret<0)
goto ex;
if(ret>0) {
ret= Xorriso_findx_action(xorriso, job, abs_dir_path, dir_path, depth,
flag&1);
if(xorriso->request_to_abort)
{ret= 0; goto ex;}
if(ret<=0) {
if(Xorriso_eval_problem_status(xorriso, ret, 1|2)<0)
goto ex;
}
}
}
if(xorriso->request_to_abort)
{ret= 1; goto ex;}
if(!S_ISDIR(dir_stbuf->st_mode))
{ret= 2; goto ex;}
ret= Dirseq_new(&dirseq, abs_dir_path, 1);
if(ret<0) {
sprintf(xorriso->info_text, "Cannot obtain disk directory iterator");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
{ret= -1; goto ex;}
}
if(ret==0)
{ret= 2; goto ex;}
job->depth++;
while(!xorriso->request_to_abort) {
Linkitem_reset_stack(&own_link_stack, link_stack, 0);
ret= Dirseq_next_adr(dirseq,name,0);
if(ret==0)
break;
if(ret<0) {
sprintf(xorriso->info_text,"Failed to obtain next directory entry");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
{ret= -1; goto ex;}
}
ret= Xorriso_make_abs_adr(xorriso, abs_dir_path, name, abs_path, 1);
if(ret<=0)
goto ex;
ret= Xorriso_make_abs_adr(xorriso, dir_path, name, path, 4);
if(ret<=0)
goto ex;
ret= Xorriso_path_is_excluded(xorriso, abs_path, 0); /* (is never param) */
if(ret<0)
goto ex;
if(ret>0)
continue;
ret= lstat(abs_path, &stbuf);
if(ret==-1)
continue;
no_dive= 0;
is_link= S_ISLNK(stbuf.st_mode);
if(is_link && xorriso->do_follow_links) {
ret= Xorriso_hop_link(xorriso, abs_path, &own_link_stack, &stbuf, 2);
if(ret<0)
{ret= -1; goto ex;}
if(ret!=1)
no_dive= 1;
}
ret= Findjob_test_2(xorriso, job, NULL, name, path, dir_stbuf, &stbuf, 0);
if(ret<0)
goto ex;
if(ret>0) {
ret= Xorriso_findx_action(xorriso, job, abs_path, path, depth, flag&1);
if(xorriso->request_to_abort)
{ret= 0; goto ex;}
if(ret<=0) {
if(Xorriso_eval_problem_status(xorriso, ret, 1|2)<0)
goto ex;
}
}
if(!S_ISDIR(stbuf.st_mode))
no_dive= 1;
if(dir_stbuf->st_dev != stbuf.st_dev && !xorriso->do_follow_mount)
no_dive= 1;
if(!no_dive) {
ret= Xorriso_findx(xorriso, job, abs_path, path, &stbuf, depth+1,
own_link_stack, flag|1);
if(ret<0)
goto ex;
}
}
ret= 1;
ex:;
job->depth= depth;
Xorriso_free_meM(sfe);
Xorriso_free_meM(name);
Xorriso_free_meM(path);
Xorriso_free_meM(abs_dir_path_data);
Xorriso_free_meM(abs_path);
Dirseq_destroy(&dirseq, 0);
return(ret);
}
/* @param flag bit0= no hardlink reconstruction
bit1= do not set xorriso->node_*_prefixes
bit5= -extract_single: eventually do not insert directory tree
*/
int Xorriso_restore_sorted(struct XorrisO *xorriso, int count,
char **src_array, char **tgt_array,
int *problem_count, int flag)
{
int i, ret, with_node_array= 0, hflag= 0, hret;
*problem_count= 0;
if(!(((xorriso->ino_behavior & 16) && xorriso->do_restore_sort_lba) ||
(xorriso->ino_behavior & 4) || (flag & 1))) {
ret= Xorriso_make_hln_array(xorriso, 0);
if(ret<=0)
goto ex;
}
if(xorriso->do_restore_sort_lba) {
/* Count affected nodes */
Xorriso_destroy_node_array(xorriso, 0);
for(i= 0; i < count; i++) {
if(src_array[i] == NULL || tgt_array[i] == NULL)
continue;
/* sort_lba : Make directories plus node_array and then
run array extractor (with eventual hardlink detection)
*/
hflag= (1 << 7) | ((!!(flag & 2)) << 9) | (flag & 32);
ret= Xorriso_restore(xorriso, src_array[i], tgt_array[i],
(off_t) 0, (off_t) 0, hflag);
if(ret <= 0) {
(*problem_count)++;
hret= Xorriso_eval_problem_status(xorriso, ret, 1 | 2);
if(hret < 0)
goto ex;
}
with_node_array= 1;
}
}
if(with_node_array) {
/* Allocate and fill node array */
if(xorriso->node_counter <= 0)
{ret= 2; goto ex;}
ret= Xorriso_new_node_array(xorriso, xorriso->temp_mem_limit, 0,
!xorriso->do_restore_sort_lba);
if(ret<=0)
goto ex;
for(i= 0; i < count; i++) {
if(src_array[i] == NULL || tgt_array[i] == NULL)
continue;
ret= Xorriso_restore(xorriso, src_array[i], tgt_array[i],
(off_t) 0, (off_t) 0, (2 << 7) | (flag & 32));
if(ret <= 0) {
(*problem_count)++;
hret= Xorriso_eval_problem_status(xorriso, ret, 1 | 2);
if(hret < 0)
goto ex;
}
}
}
/* Perform restore operations */
if(xorriso->do_restore_sort_lba) {
ret= Xorriso_restore_node_array(xorriso, 0);
if(ret <= 0)
goto ex;
} else {
for(i= 0; i < count; i++) {
if(src_array[i] == NULL || tgt_array[i] == NULL)
continue;
ret= Xorriso_restore(xorriso, src_array[i], tgt_array[i],
(off_t) 0, (off_t) 0, flag & 32);
if(ret <= 0) {
(*problem_count)++;
hret= Xorriso_eval_problem_status(xorriso, ret, 1 | 2);
if(hret < 0)
goto ex;
}
}
}
ret= 1;
ex:;
return(ret);
}
/* @param flag bit0= path is a directory
bit2= recursion: do not reassure in mode 2 "tree"
bit3-7= question text mode
0= plain removal
1= replacing file object
2= overwriting of content, keeping file object
3= appending of content, keeping file object
*/
int Xorriso_reassure_restore(struct XorrisO *xorriso, char *path, int flag)
{
int ret, mode;
mode= (flag >> 3) & 31;
while((xorriso->do_reassure==1 || (xorriso->do_reassure==2 && !(flag&4)))
&& !xorriso->request_not_to_ask) {
/* ls -ld */
Xorriso_lsx_filev(xorriso, xorriso->wdx, 1, &path, (off_t) 0, 1|2|8);
if(flag&1) /* du -s */
Xorriso_lsx_filev(xorriso, xorriso->wdx, 1, &path, (off_t) 0, 2|4);
if(mode == 3)
sprintf(xorriso->info_text,
"File exists. Append content ? n= no, y= yes, x= abort, @= stop asking\n");
else if(mode == 2)
sprintf(xorriso->info_text,
"File exists. Overwrite content ? n= no, y= yes, x= abort, @= stop asking\n");
else if(mode == 1)
sprintf(xorriso->info_text,
"File exists. Remove ? n= keep old, y= remove, x= abort, @= stop asking\n");
else
sprintf(xorriso->info_text,
"Remove above file ? n= keep it, y= remove it, x= abort, @= stop asking\n");
Xorriso_info(xorriso, 4);
ret= Xorriso_request_confirmation(xorriso, 1|2|4|16);
if(ret<=0)
goto ex;
if(xorriso->request_to_abort) {
sprintf(xorriso->info_text,
"File alteration operation aborted by user before file: ");
Text_shellsafe(path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
ret= 3; goto ex;
}
if(ret==3)
continue;
if(ret==6) /* yes */
break;
if(ret==4) { /* yes, do not ask again */
xorriso->request_not_to_ask= 1;
break;
}
if(ret==1) { /* no */
sprintf(xorriso->info_text, "Kept in existing state: ");
Text_shellsafe(path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
ret= 3; goto ex;
}
}
ret= 1;
ex:
return(ret);
}
/* @param flag bit7= return 4 if restore fails from denied permission
do not issue error message
@return <=0 failure , 1 success ,
4 with bit7: permission to create file was denied
*/
int Xorriso_make_tmp_path(struct XorrisO *xorriso, char *orig_path,
char *tmp_path, int *fd, int flag)
{
char *cpt;
cpt= strrchr(orig_path, '/');
if(cpt==NULL)
tmp_path[0]= 0;
else {
strncpy(tmp_path, orig_path, cpt+1-orig_path);
tmp_path[cpt+1-orig_path]= 0;
}
strcat(tmp_path, "_tmp_xorriso_restore_XXXXXX");
*fd= mkstemp(tmp_path);
if(*fd==-1) {
if(errno == EACCES && (flag & 128))
return(4);
strcpy(xorriso->info_text, "Cannot create temporary file : ");
Text_shellsafe(tmp_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
return(0);
}
fchmod(*fd, S_IRUSR|S_IWUSR);
return(1);
}
/* @param flag bit0= change regardless of xorriso->do_auto_chmod
bit1= desired is only rx
@return -1=severe error , -2= cannot chmod, 0= nothing to do, 1 = chmoded
*/
int Xorriso_auto_chmod(struct XorrisO *xorriso, char *disk_path, int flag)
{
int ret, is_link= 0;
char *path_pt, *link_target= NULL;
mode_t mode, desired= S_IRUSR | S_IWUSR | S_IXUSR;
struct stat stbuf;
Xorriso_alloc_meM(link_target, char, SfileadrL);
if(!(xorriso->do_auto_chmod || (flag & 1)))
{ret= 0; goto ex;}
if(flag & 2)
desired &= ~S_IWUSR;
path_pt= disk_path;
ret= lstat(path_pt, &stbuf);
if(ret==-1)
{ret= 0; goto ex;}
if(S_ISLNK(stbuf.st_mode)) {
is_link= 1;
ret= stat(path_pt, &stbuf);
if(ret==-1)
{ret= 0; goto ex;}
}
if(!S_ISDIR(stbuf.st_mode))
{ret= 0; goto ex;}
if(is_link) {
ret= Xorriso_resolve_link(xorriso, path_pt, link_target, 0);
if(ret<=0)
goto ex;
path_pt= link_target;
}
if((stbuf.st_mode & desired) == desired)
{ret= 0; goto ex;}
if(stbuf.st_uid!=geteuid())
{ret= -2; goto ex;}
mode= (stbuf.st_mode | desired) & 07777;
ret= chmod(path_pt, mode);
if(ret==-1) {
sprintf(xorriso->info_text,
"Cannot change access permissions of disk directory: chmod %o ",
(unsigned int) (mode & 07777));
Text_shellsafe(path_pt, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "SORRY", 0);
{ret= -2; goto ex;}
}
ret= Permstack_push(&(xorriso->perm_stack), path_pt, &stbuf, 0);
if(ret<=0)
goto ex;
ret= 1;
ex:;
Xorriso_free_meM(link_target);
return(ret);
}
int Xorriso_make_accessible(struct XorrisO *xorriso, char *disk_path, int flag)
{
int done= 0, ret, just_rx= 2;
char *npt, *apt, *path, *wpt;
Xorriso_alloc_meM(path, char, SfileadrL);
apt= disk_path;
wpt= path;
for(npt= apt; !done; apt= npt + 1) {
npt= strchr(apt, '/');
if(npt == NULL)
break;
if(strchr(npt + 1, '/') == NULL)
just_rx= 0;
strncpy(wpt, apt, npt + 1 - apt);
wpt+= npt + 1 - apt;
*wpt= 0;
ret= Xorriso_auto_chmod(xorriso, path, just_rx);
if(ret == -1)
{ret= -1; goto ex;}
if(ret == -2)
{ret= 0; goto ex;}
}
ret= 1;
ex:
Xorriso_free_meM(path);
return(ret);
}
/* @param flag bit0= prefer to find a match after *img_prefixes
(but deliver img_prefixes if no other can be found)
*/
int Xorriso_make_restore_path(struct XorrisO *xorriso,
struct Xorriso_lsT **img_prefixes, struct Xorriso_lsT **disk_prefixes,
char img_path[SfileadrL], char disk_path[SfileadrL], int flag)
{
int li;
struct Xorriso_lsT *s, *d, *found_s= NULL, *found_d= NULL;
char *ipfx, *dpfx;
/* Obtain disk_path by replacing start piece of img_path */
d= *disk_prefixes;
for(s= *img_prefixes; s != NULL;
s= Xorriso_lst_get_next(s, 0), d= Xorriso_lst_get_next(d, 0)) {
ipfx= Xorriso_lst_get_text(s, 0);
li= strlen(ipfx);
dpfx= Xorriso_lst_get_text(d, 0);
if(li == 1 && ipfx[0] == '/') {
li= 0;
if(img_path[0] != '/')
continue;
} else {
if(strncmp(img_path, ipfx, li) != 0)
continue;
if(img_path[li] != 0 && img_path[li] != '/')
continue;
}
if(strlen(dpfx) + strlen(img_path) - li + 1 >= SfileadrL)
return(-1);
if(img_path[li]=='/') {
if(dpfx[0] == '/' && dpfx[1] == 0)
sprintf(disk_path, "/%s", img_path + li + 1);
else
sprintf(disk_path, "%s/%s", dpfx, img_path + li + 1);
} else
strcpy(disk_path, dpfx); /* img_path[li] is 0, img_path equals ipfx */
found_s= s;
found_d= d;
if(s != *img_prefixes || !(flag & 1))
break;
}
*img_prefixes= found_s;
*disk_prefixes= found_d;
return(found_s != NULL);
}
/* @param flag bit0=permission to run Xorriso_make_accessible
*/
int Xorriso_restore_make_hl(struct XorrisO *xorriso,
char *old_path, char *new_path, int flag)
{
int ret;
struct PermiteM *perm_stack_mem;
ret= link(old_path, new_path);
if(ret == 0)
return(1);
if(errno == EACCES && (flag & 1)) {
perm_stack_mem= xorriso->perm_stack;
ret= Xorriso_make_accessible(xorriso, new_path, 0);
if(ret > 0) {
ret= link(old_path, new_path);
if(ret == 0) {
Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso, 0);
return(1);
}
}
Permstack_pop(&(xorriso->perm_stack), perm_stack_mem, xorriso, 0);
}
sprintf(xorriso->info_text, "Hardlinking failed: ");
Text_shellsafe(new_path, xorriso->info_text, 1);
strcat(xorriso->info_text, " -> ");
Text_shellsafe(old_path, xorriso->info_text, 1 | 2);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "WARNING", 0);
return(0);
}
int Xorriso_afile_fopen(struct XorrisO *xorriso,
char *filename, char *mode, FILE **ret_fp, int flag)
/*
bit0= do not print error message on failure
bit1= do not open stdin
*/
{
FILE *fp= NULL;
*ret_fp= NULL;
if(strcmp(filename,"-")==0) {
if(mode[0]=='a' || mode[0]=='w' ||
(mode[0]=='r' && mode[1]=='+') ||
(mode[0]=='r' && mode[1]=='b' && mode[2]=='+'))
fp= stdout;
else if(flag & 2) {
Xorriso_msgs_submit(xorriso, 0, "Not allowed as input path: '-'", 0,
"FAILURE", 0);
return(0);
} else {
Xorriso_msgs_submit(xorriso, 0, "Ready for data at standard input", 0,
"NOTE", 0);
fp= stdin;
}
} else if(strncmp(filename,"tcp:",4)==0){
Xorriso_msgs_submit(xorriso, 0, "TCP/IP service isn't implemented yet.", 0,
"FAILURE", 0);
} else if(strncmp(filename,"file:",5)==0){
fp= fopen(filename+5,mode);
} else {
fp= fopen(filename,mode);
}
if(fp==NULL){
if(!(flag&1)) {
sprintf(xorriso->info_text,
"Failed to open file '%s' in %s mode", filename, mode);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
}
return(0);
}
*ret_fp= fp;
return(1);
}
/*
@param flag bit0= make absolute command paths with known systems
bit1= do not allow prefixes with cmd
bit2= interpret unprefixed cmd as shell:
bit3= do not care for device filetype
*/
int Xorriso_make_mount_cmd(struct XorrisO *xorriso, char *cmd,
off_t lba, int track, int session, char *volid,
char *devadr, char result[SfileadrL], int flag)
{
int ret, reg_file= 0, is_safe= 0, sys_code= 0;
char *form= NULL, session_text[12], track_text[12], lba_text[24];
char *vars[5][2], *sfe= NULL, *volid_sfe= NULL, *cpt, *sysname;
char *cooked_dev= NULL, *eff_dev;
struct stat stbuf;
Xorriso_alloc_meM(form, char, 6 * SfileadrL);
Xorriso_alloc_meM(sfe, char, 5 * SfileadrL);
Xorriso_alloc_meM(volid_sfe, char, 5 * 80 + 1);
Xorriso_alloc_meM(cooked_dev, char, SfileadrL);
if(strlen(cmd) > SfileadrL) {
Xorriso_msgs_submit(xorriso, 0, "Argument much too long", 0, "FAILURE", 0);
{ret= 0; goto ex;}
}
eff_dev= devadr;
ret= stat(devadr, &stbuf);
if(ret != -1 && !(flag & 8))
if(S_ISREG(stbuf.st_mode))
reg_file= 1;
if(strncmp(cmd, "linux:", 6) == 0 && !(flag & 2)) {
cpt= cmd + 6;
sys_code= 1;
} else if(strncmp(cmd, "freebsd:", 8) == 0 && !(flag & 2)) {
cpt= cmd + 8;
sys_code= 2;
} else if(strncmp(cmd, "netbsd:", 7) == 0 && !(flag & 2)) {
cpt= cmd + 7;
sys_code= 3;
} else if(strncmp(cmd, "string:", 7) == 0 && !(flag & 2)) {
cpt= cmd + 7;
strcpy(form, cpt);
} else if(flag & 4) {
cpt= cmd;
strcpy(form, cpt);
} else {
cpt= cmd;
ret= System_uname(&sysname, NULL, NULL, NULL, 0);
if(ret <= 0) {
Xorriso_msgs_submit(xorriso, 0,
"-mount*: Cannot determine current system type",
0, "FAILURE", 0);
{ret= 0; goto ex;}
} else if(strcmp(sysname, "FreeBSD") == 0 ||
strcmp(sysname, "GNU/kFreeBSD") == 0) {
/* "GNU/kFreeBSD" = Debian kfreebsd */
sys_code= 2;
} else if(strcmp(sysname, "NetBSD") == 0) {
sys_code= 3;
} else if(strcmp(sysname, "Linux") == 0) {
sys_code= 1;
} else {
sprintf(xorriso->info_text, "-mount*: Unsupported system type %s",
Text_shellsafe(sysname, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
{ret= 0; goto ex;}
}
}
if(sys_code == 1) { /* GNU/Linux */
sprintf(form,
"%smount -t iso9660 -o %snodev,noexec,nosuid,ro,sbsector=%%sbsector%% %%device%% %s",
(flag & 1 ? "/bin/" : ""),
(reg_file || (xorriso->mount_opts_flag & 1) ? "loop," : ""),
Text_shellsafe(cpt, sfe, 0));
is_safe= 1;
} else if(sys_code == 2 || sys_code == 3) { /* FreeBSD , NetBSD */
if(reg_file) {
/* <<< Considered to create vnode as of
J.R. Oldroyd <fbsd@opal.com>, 20 Nov 2008
but for now refraining from creating that persistent file object
strcpy(form, "n=$(mdconfig -a -t vnode -f %device%)");
sprintf(form + strlen(form),
" && mount -t cd9660 -o noexec,nosuid -s %%sbsector%% /dev/\"$n\" %s",
Text_shellsafe(cmd+8, sfe, 0));
*/
Xorriso_msgs_submit(xorriso, 0,
"Detected regular file as mount device with BSD style command.",
0, "FAILURE", 0);
if(sys_code == 2) {
Xorriso_msgs_submit(xorriso, 0,
"Command mdconfig -a -t vnode -f can create a device node which uses the file",
0, "HINT", 0);
} else {
Xorriso_msgs_submit(xorriso, 0,
"Command vnconfig -c vndX can create a device node which uses the file",
0, "HINT", 0);
}
{ret= 0; goto ex;}
} else {
if(sys_code == 3 && strncmp(devadr, "/dev/rcd", 8) == 0) {
sprintf(cooked_dev, "/dev/cd%s", devadr + 8);
eff_dev= cooked_dev;
}
sprintf(form,
"%smount_cd9660 -o noexec,nosuid -s %%sbsector%% %%device%% %s",
(flag & 1 ? "/sbin/" : ""), Text_shellsafe(cpt, sfe, 0));
}
is_safe= 1;
}
sprintf(session_text, "%d", session);
sprintf(track_text, "%d", track);
sprintf(lba_text, "%.f", (double) lba);
vars[0][0]= "sbsector";
vars[0][1]= lba_text;
vars[1][0]= "track";
vars[1][1]= track_text;
vars[2][0]= "session";
vars[2][1]= session_text;
vars[3][0]= "volid";
vars[3][1]= Text_shellsafe(volid, volid_sfe, 0);
vars[4][0]= "device";
vars[4][1]= Text_shellsafe(eff_dev, sfe, 0);
ret= Sregex_resolve_var(form, vars, 5, "%", "%", "%", result, SfileadrL, 0);
if(ret <= 0)
goto ex;
ret= 1 + is_safe;
ex:;
Xorriso_free_meM(cooked_dev);
Xorriso_free_meM(volid_sfe);
Xorriso_free_meM(sfe);
Xorriso_free_meM(form);
return(ret);
}
int Xorriso_append_scdbackup_record(struct XorrisO *xorriso, int flag)
{
FILE *fp= NULL;
char dummy[81], name[81], timestamp[81], size[81], md5[81];
if(xorriso->scdbackup_tag_written[0] == 0)
return(1);
name[0]= timestamp[0]= size[0]= md5[0]= 0;
sscanf(xorriso->scdbackup_tag_written, "%s %s %s %s %s %s %s",
dummy, dummy, dummy, name, timestamp, size, md5);
sprintf(xorriso->info_text, "scdbackup tag written : %s %s %s %s\n",
name, timestamp, size, md5);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
if(xorriso->scdbackup_tag_listname[0]) {
fp= fopen(xorriso->scdbackup_tag_listname, "a");
if(fp==0) {
strcpy(xorriso->info_text, "-scdbackup_tag: Cannot open file ");
Text_shellsafe(xorriso->scdbackup_tag_listname, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
return(0);
}
fprintf(fp, "%s %s %s %s\n", name, timestamp, size, md5);
fclose(fp);
}
return(1);
}
/* @param flag bit0= for append rather than overwrite
*/
int Xorriso_is_concat_target(struct XorrisO *xorriso, char *target,
int *ftype, int *fd, int flag)
{
int ret;
char *why= "";
*ftype= 0;
*fd = -1;
if(strcmp(target, "-") == 0) {
*fd= 1;
*ftype= 8; /* character device */
return(1);
}
*ftype= Sfile_type(target, 1 | 8 | 16);
if(*ftype == -1)
return(2); /* not yet existing regular */
if(*ftype & 1024) {
*fd= Sfile_get_dev_fd_no(target, 0);
*ftype &= ~1024;
}
if(*ftype & 2048) {
why= "fstat(2) returned -1 on file descriptor number.";
goto not_usable;
}
if(*ftype == 3) {
if(!xorriso->do_follow_concat) {
why= "May not follow symbolic link. No -follow \"...:concat:...\".";
goto not_usable;
}
*ftype= Sfile_type(target, 1 | 4 | 8);
if(*ftype == -1)
return(2); /* not yet existing regular */
}
if(*ftype == 2) {
why= "May not write data into a directory.";
goto not_usable;
}
if(*ftype == 0) {
why= "Cannot determine file type.";
goto not_usable;
}
if(*ftype == 7) {
/* >>> what to do with UNIX socket ? */;
why= "Cannot yet handle socket file as target.";
goto not_usable;
}
if(xorriso->do_overwrite != 1 && xorriso->do_overwrite != 2) {
why= "May not alter existing file.";
goto not_usable;
}
ret= Xorriso_reassure_restore(xorriso, target, (2 + (flag & 1)) << 3);
if(ret <= 0 || ret == 0) {
why= "User revoked alteration of existing file.";
goto not_usable;
}
if(*ftype == 1)
return(2); /* existing regular */
if(*ftype == 4 || *ftype == 6 || *ftype == 8)
return(1); /* named pipe, block device, character device */
not_usable:;
sprintf(xorriso->info_text,
"Unsuitable -concat target: ");
Text_shellsafe(target, xorriso->info_text, 1);
sprintf(xorriso->info_text + strlen(xorriso->info_text), ". %s", why);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
return(0);
}
int Xorriso_concat(struct XorrisO *xorriso, char *mode, char *target,
int progc, char **progv,
int filec, char **filev, int flag)
{
int ret, i, fd= -1, target_is_regular= 0, fd_opened= 0, ftype, prog_forked= 0;
int status;
int open_mode= O_WRONLY | O_CREAT;
struct stat stbuf;
pid_t forked_pid;
for(i= 0; i < filec; i++) {
ret= Xorriso_iso_lstat(xorriso, filev[i], &stbuf, 4);
if(ret == -1)
goto ex;
if(!S_ISREG(stbuf.st_mode)) {
sprintf(xorriso->info_text,
"-concat: iso_rr_path is not a regular data file: ");
Text_shellsafe(filev[i], xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
}
if(strcmp(mode, "overwrite") == 0) {
ret= Xorriso_is_concat_target(xorriso, target, &ftype, &fd, 0);
if(ret <= 0)
goto ex;
if(ret == 2) {
target_is_regular= 1;
open_mode |= O_TRUNC;
}
if(fd == -1) {
fd= open(target, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666);
fd_opened= 1;
}
} else if(strcmp(mode, "append") == 0) {
ret= Xorriso_is_concat_target(xorriso, target, &ftype, &fd, 1);
if(ret <= 0)
goto ex;
target_is_regular= (ret == 2);
if(fd == -1) {
fd= open(target, O_WRONLY | O_CREAT | O_BINARY, 0666);
fd_opened= 1;
if(fd != -1 && target_is_regular) {
ret= lseek(fd, (off_t) 0, SEEK_END);
if(ret == -1) {
sprintf(xorriso->info_text,
"-concat append: Cannot lseek(2) to file end of ");
Text_shellsafe(target, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
}
}
} else if(strcmp(mode, "pipe") == 0) {
ret= Xorriso_pipe_open(xorriso, "-concat pipe", progv[0], progc, progv,
"", &fd, &forked_pid, 2 | 8);
if(ret <= 0)
goto ex;
fd_opened= 1;
prog_forked= 1;
} else {
sprintf(xorriso->info_text, "-concat: Unknown mode ");
Text_shellsafe(mode, xorriso->info_text, 1);
strcat(xorriso->info_text, ". Known modes: overwrite, append, pipe");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
if(fd == -1) {
sprintf(xorriso->info_text,
"-concat: Cannot open file handle to ");
Text_shellsafe(target, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
for(i= 0; i < filec; i++) {
ret= Xorriso_iso_file_to_fd(xorriso, filev[i], fd, 0);
if(ret <= 0) {
if(i < filec - 1) {
ret= Xorriso_eval_problem_status(xorriso, ret, 1 | 2);
if(ret < 0) {
sprintf(xorriso->info_text,
"-concat: Aborted although %d files stay unprocessed.",
filec - i + 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
}
}
}
ret= 1;
ex:;
if(fd_opened && fd != -1)
close(fd);
if(prog_forked)
Xorriso_wait_child_end(xorriso, forked_pid, &status, 0);
return(ret);
}
/* flag: bit0= *capacity is a desired value.
Try SEEK_SET with *capacity
bit1= open for writing
return: 0= no random access , -1= cannot open path
1= *capacity is valid
*/
int Xorriso_lseek_capacity(struct XorrisO *xorriso, char *path,
off_t *capacity, int flag)
{
int fd;
off_t seek_result;
if(flag & 2)
fd= open(path, O_WRONLY);
else
fd= open(path, O_RDONLY);
if(fd < 0) {
sprintf(xorriso->info_text,
"Cannot open for determination of random-access capacity: ");
Text_shellsafe(path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
return(-1);
}
if(flag & 1) {
seek_result= lseek(fd, *capacity, SEEK_SET);
} else {
seek_result= lseek(fd, 0, SEEK_END);
}
close(fd);
if(seek_result < 0)
return(0);
*capacity= seek_result;
return(1);
}
/* flag: bit0= *capacity is a desired value.
If SEEK_END fails, try SEEK_SET with *capacity
bit1= open for writing
return: 0= no random access , -1= path does not exist , -2= wrong type
-3= cannot open path
1= *capacity is valid
*/
int Xorriso_determine_capacity(struct XorrisO *xorriso, char *path,
off_t *capacity, char **reason, int flag)
{
int ret;
off_t src_size, src_seek_size= -1;
struct stat stbuf;
if(reason != NULL)
*reason= "offers no random access";
if(lstat(path, &stbuf) == -1) {
*capacity= 0;
if(reason != NULL)
*reason= "does not exist";
return(-1);
}
if(S_ISREG(stbuf.st_mode)) {
src_size= stbuf.st_size;
} else if(!(S_ISDIR(stbuf.st_mode) || S_ISLNK(stbuf.st_mode) ||
S_ISFIFO(stbuf.st_mode) || S_ISSOCK(stbuf.st_mode))) {
ret= Xorriso_lseek_capacity(xorriso, path, &src_size, flag & 2);
if(ret <= 0 || src_size <= 0) {
if(ret == -1 || !(flag & 1)) {
*capacity= 0;
if(ret == -1) {
if(reason != NULL)
*reason= "cannot be opened";
return(-3);
}
return(ret > 0);
}
if(ret > 0)
src_seek_size= 0;
src_size= *capacity;
ret= Xorriso_lseek_capacity(xorriso, path, &src_size, flag & 3);
if(ret <= 0 || src_size < src_seek_size) {
if(src_seek_size == 0) {
src_size= src_seek_size;
} else {
*capacity= 0;
if(ret == -1) {
if(reason != NULL)
*reason= "cannot be opened";
return(-3);
}
return(0);
}
}
}
} else {
*capacity= 0;
if(reason != NULL)
*reason= "is of wrong type";
return(-2);
}
*capacity= src_size;
if(reason != NULL)
*reason= "";
return(1);
}
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