File indexing completed on 2024-05-12 04:51:15

 /*
     SPDX-License-Identifier: GPL-2.0-or-later
     SPDX-FileCopyrightText: 2002 Szombathelyi Gy �rgy <gyurco@users.sourceforge.net>
 */
 
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
 #include "isofs.h"
 #include "rock.h"
 
 
 
 /* internal function from the linux kernel (isofs fs) */
 static time_t getisotime(int year,int month,int day,int hour,
                          int minute,int second,int tz) {
 
     int days, i;
     time_t crtime;
 
     year-=1970;
 
     if (year < 0) {
         crtime = 0;
     } else {
         int monlen[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
 
         days = year * 365;
         if (year > 2)
             days += (year+1) / 4;
         for (i = 1; i < month; ++i)
             days += monlen[i-1];
         if (((year+2) % 4) == 0 && month > 2)
             days++;
         days += day - 1;
         crtime = ((((days * 24) + hour) * 60 + minute) * 60)
             + second;
 
         /* sign extend */
         if (tz & 0x80)
             tz |= (-1 << 8);
 
         /*
          * The timezone offset is unreliable on some disks,
          * so we make a sanity check.  In no case is it ever
          * more than 13 hours from GMT, which is 52*15min.
          * The time is always stored in localtime with the
          * timezone offset being what get added to GMT to
          * get to localtime.  Thus we need to subtract the offset
          * to get to true GMT, which is what we store the time
          * as internally.  On the local system, the user may set
          * their timezone any way they wish, of course, so GMT
          * gets converted back to localtime on the receiving
          * system.
          *
          * NOTE: mkisofs in versions prior to mkisofs-1.10 had
          * the sign wrong on the timezone offset.  This has now
          * been corrected there too, but if you are getting screwy
          * results this may be the explanation.  If enough people
          * complain, a user configuration option could be added
          * to add the timezone offset in with the wrong sign
          * for 'compatibility' with older discs, but I cannot see how
          * it will matter that much.
          *
          * Thanks to kuhlmav@elec.canterbury.ac.nz (Volker Kuhlmann)
          * for pointing out the sign error.
          */
         if (-52 <= tz && tz <= 52)
             crtime -= tz * 15 * 60;
     }
     return crtime;
 
 }
 
 /**
  * Returns the Unix from the ISO9660 9.1.5 time format
  */
 time_t isodate_915(char * p, int hs) {
 
     return getisotime(1900+p[0],p[1],p[2],p[3],p[4],p[5],hs==0 ? p[6] : 0);
 }
 
 /**
  * Returns the Unix from the ISO9660 8.4.26.1 time format
  * BUG: hundredth of seconds are ignored, because Unix time_t has one second
  * resolution (I think it's no problem at all)
  */
 time_t isodate_84261(char * p, int hs) {
     int year,month,day,hour,minute,second;
     year=(p[0]-'0')*1000 + (p[1]-'0')*100 + (p[2]-'0')*10 + p[3]-'0';
     month=(p[4]-'0')*10 + (p[5]-'0');
     day=(p[6]-'0')*10 + (p[7]-'0');
     hour=(p[8]-'0')*10 + (p[9]-'0');
     minute=(p[10]-'0')*10 + (p[11]-'0');
     second=(p[12]-'0')*10 + (p[13]-'0');
     return getisotime(year,month,day,hour,minute,second,hs==0 ? p[16] : 0);
 }
 
 void FreeBootTable(boot_head *boot) {
     boot_entry *be,*next;
 
     be=boot->defentry;
     while (be) {
         next=be->next;
         free(be);
         be=next;
     }
     boot->defentry=NULL;
 }
 
 int BootImageSize(readfunc*,int media,sector_t,int len,void*) {
     int ret;
 
     switch(media & 0xf) {
         case 0:
             ret=len; /* No emulation */
             break;
         case 1:
             ret=80*2*15; /* 1.2 MB */
             break;
         case 2:
             ret=80*2*18; /* 1.44 MB */
             break;
         case 3:
             ret=80*2*36; /* 2.88 MB */
             break;
         case 4:
             /* FIXME!!! */
             ret=len; /* Hard Disk */
             break;
         default:
             ret=len;
     }
     return ret;
 }
 
 static boot_entry *CreateBootEntry(char *be) {
     boot_entry *entry;
 
     entry = (boot_entry*) malloc(sizeof(boot_entry));
     if (!entry) return NULL;
     memset(entry, 0, sizeof(boot_entry));
     memcpy(entry->data,be,0x20);
     return entry;
 }
 
 int ReadBootTable(readfunc *read,sector_t sector, boot_head *head, void *udata) {
 
     char buf[2048], *c, *be;
     int i,end=0;
     unsigned short sum;
     boot_entry *defcur=NULL,*deflast=NULL;
     struct validation_entry *ventry=NULL;
 
     head->sections=NULL;
     head->defentry=NULL;
     while (1) {
         be = (char*) &buf;
         if ( read(be, sector, 1, udata) != 1 ) goto err;
 
         /* first entry needs to be a validation entry */
         if (!ventry) {
             ventry=(struct validation_entry *) be;
             if ( isonum_711(ventry->type) !=1 ) goto err;
             sum=0;
             c = (char*) ventry;
             for (i=0;i<16;++i) { sum += isonum_721(c); c+=2; }
             if (sum) goto err;
             memcpy(&head->ventry,be,0x20);
             be += 0x20;
         }
 
         while (!end && (be < (buf+1))) {
             switch (isonum_711(be)) {
                 case 0x88:
                     defcur=CreateBootEntry(be);
                     if (!defcur) goto err;
                     if (deflast)
                         deflast->next=defcur;
                     else
                         head->defentry=defcur;
                     defcur->prev=deflast;
                     deflast=defcur;
                     break;
                 case 0x90:
                 case 0x91:
                     break;
                 default:
                     end=1;
                     break;
             }
             be += 0x20;
         }
         if (end) break;
 
         sector ++;
     }
 
     return 0;
 
 err:
     FreeBootTable(head);
     return -1;
 }
 
 
 /**
  * Creates the linked list of the volume descriptors
  */
 iso_vol_desc *ReadISO9660(readfunc *read,sector_t sector,void *udata) {
 
     int i;
     struct iso_volume_descriptor buf;
     iso_vol_desc *first=NULL,*current=NULL,*prev=NULL;
 
     for (i=0;i<100;i++) {
         if (read( (char*) &buf, sector+i+16, 1, udata) != 1 ) {
             FreeISO9660(first);
             return NULL;
         }
         if (!memcmp(ISO_STANDARD_ID,&buf.id,5)) {
             switch ( isonum_711(&buf.type[0]) ) {
 
                 case ISO_VD_BOOT:
                 case ISO_VD_PRIMARY:
                 case ISO_VD_SUPPLEMENTARY:
                     current=(iso_vol_desc*) malloc(sizeof(iso_vol_desc));
                     if (!current) {
                         FreeISO9660(first);
                         return NULL;
                     }
                     current->prev=prev;
                     current->next=NULL;
                     if (prev) prev->next=current;
                     memcpy(&(current->data),&buf,2048);
                     if (!first) first=current;
                     prev=current;
                     break;
 
                 case ISO_VD_END:
                     return first;
                     break;
             }
         } else if (!memcmp(HS_STANDARD_ID,(struct hs_volume_descriptor*) &buf,5)) {
             /* High Sierra format not supported (yet) */
         }
     }
 
     return first;
 }
 
 /**
  * Frees the linked list of volume descriptors
  */
 void FreeISO9660(iso_vol_desc *data) {
 
     iso_vol_desc *current;
 
 
     while (data) {
         current=data;
         data=current->next;
         free(current);
     }
 }
 
 /**
  * Frees the strings in 'rrentry'
  */
 void FreeRR(rr_entry *rrentry) {
     if (rrentry->name) {
         free(rrentry->name);
         rrentry->name=NULL;
     }
     if (rrentry->sl) {
         free(rrentry->sl);
         rrentry->sl = NULL;
     }
 }
 
 int str_nappend(char **d, char *s, int n) 
 {
     int i = 0;
     char *c;
 
     while (i < n && s[i]) i++;
     i++;
     if (*d) i += (strlen(*d) + 1);
     c = (char*) malloc(i);
     if (!c) return -ENOMEM;
     if (*d) {
         strcpy(c, *d);
         strncat(c, s, n);
 
         free(*d);
     } else
         strncpy(c, s, n);
     c[i - 1] = 0;
     *d = c;
     return 0;
 }
 
 static int str_append(char **d, const char *s) {
     int i;
     char *c;
 
     i=strlen(s)+1;
     if (*d) i+=(strlen(*d)+1);
     c=(char*) malloc(i);
     if (!c) return -ENOMEM;
     if (*d) {
         strcpy(c,*d);
         strcat(c,s);
         free(*d);
     } else
         strcpy(c,s);
     c[i-1]=0;
     *d=c;
     return 0;
 }
 
 #define rrtlen(c) (((unsigned char) c & 0x80) ? 17 : 7)
 #define rrctime(f,c) ((unsigned char) f & 0x80) ? isodate_84261(c,0) : isodate_915(c,0)
 /**
  * Parses the System Use area and fills rr_entry with values
  */
 int ParseRR(struct iso_directory_record *idr, rr_entry *rrentry) {
 
     int suspoffs,susplen,i,f,ret=0;
     char *r, *c;
     struct rock_ridge *rr;
 
     suspoffs=33+isonum_711(idr->name_len);
     if (!(isonum_711(idr->name_len) & 1)) suspoffs++;
     susplen=isonum_711(idr->length)-suspoffs;
     r= & (((char*) idr)[suspoffs]);
     rr = (struct rock_ridge*) r;
 
     memset(rrentry,0,sizeof(rr_entry));
     rrentry->len = sizeof(rr_entry);
 
     while (susplen > 0) {
         if (isonum_711(&rr->len) > susplen || rr->len == 0) break;
         if (rr->signature[0]=='N' && rr->signature[1]=='M') {
             if (!(rr->u.NM.flags & 0x26) && rr->len>5 && !rrentry->name) {
 
                 if (str_nappend(&rrentry->name,rr->u.NM.name,isonum_711(&rr->len)-5)) {
                     FreeRR(rrentry); return -ENOMEM;
                 }
                 ret++;
             }
         } else if (rr->signature[0]=='P' && rr->signature[1]=='X' &&
             (isonum_711(&rr->len)==44 || isonum_711(&rr->len)==36)) {
                 rrentry->mode=isonum_733(rr->u.PX.mode);
                 rrentry->nlink=isonum_733(rr->u.PX.n_links);
                 rrentry->uid=isonum_733(rr->u.PX.uid);
                 rrentry->gid=isonum_733(rr->u.PX.gid);
                 if (isonum_711(&rr->len)==44) rrentry->serno=isonum_733(rr->u.PX.serno);
                 ret++;
         } else if (rr->signature[0]=='P' && rr->signature[1]=='N' &&
             isonum_711(&rr->len)==20) {
                 rrentry->dev_major=isonum_733(rr->u.PN.dev_high);
                 rrentry->dev_minor=isonum_733(rr->u.PN.dev_low);
                 ret++;
         } else if (rr->signature[0]=='P' && rr->signature[1]=='L' &&
             isonum_711(&rr->len)==12) {
                 rrentry->pl=isonum_733(rr->u.PL.location);
                 ret++;
         } else if (rr->signature[0]=='C' && rr->signature[1]=='L' &&
             isonum_711(&rr->len)==12) {
                 rrentry->cl=isonum_733(rr->u.CL.location);
                 ret++;
         } else if (rr->signature[0]=='R' && rr->signature[1]=='E' &&
             isonum_711(&rr->len)==4) {
                 rrentry->re=1;
                 ret++;
         } else if (rr->signature[0]=='S' && rr->signature[1]=='L' &&
             isonum_711(&rr->len)>7) {
             i = isonum_711(&rr->len)-5;
             c = (char*) rr;
             c += 5;
             while (i>0) {
                 switch(c[0] & ~1) {
                     case 0x2:
                         if (str_append(&rrentry->sl,".")) {
                             FreeRR(rrentry); return -ENOMEM;
                         }
                         break;
                     case 0x4:
                         if (str_append(&rrentry->sl,"..")) {
                             FreeRR(rrentry); return -ENOMEM;
                         }
                         break;
                 }
                 if ( (c[0] & 0x08) == 0x08 || (c[1] && rrentry->sl &&
                      strlen(rrentry->sl)>1) ) {
                     if (str_append(&rrentry->sl,"/")) {
                         FreeRR(rrentry); return -ENOMEM;
                     }
                 }
 
                 if ((unsigned char)c[1]>0) {
                     if (str_nappend(&rrentry->sl,c+2,(unsigned char)c[1])) {
                         FreeRR(rrentry); return -ENOMEM;
                     }
                 }
                 i -= ((unsigned char)c[1] + 2);
                 c += ((unsigned char)c[1] + 2);
             }
             ret++;
         } else if (rr->signature[0]=='T' && rr->signature[1]=='F' &&
             isonum_711(&rr->len)>5) {
 
             i = isonum_711(&rr->len)-5;
             f = rr->u.TF.flags;
             c = (char*) rr;
             c += 5;
 
             while (i >= rrtlen(f)) {
                 if (f & 1) {
                     rrentry->t_creat=rrctime(f,c);
                     f &= ~1;
                 } else if (f & 2) {
                     rrentry->rr_st_mtime=rrctime(f,c);
                     f &= ~2;
                 } else if (f & 4) {
                     rrentry->rr_st_atime=rrctime(f,c);
                     f &= ~4;
                 } else if (f & 8) {
                     rrentry->rr_st_ctime=rrctime(f,c);
                     f &= ~8;
                 } else if (f & 16) {
                     rrentry->t_backup=rrctime(f,c);
                     f &= ~16;
                 } else if (f & 32) {
                     rrentry->t_expire=rrctime(f,c);
                     f &= ~32;
                 } else if (f & 64) {
                     rrentry->t_effect=rrctime(f,c);
                     f &= ~64;
                 }
 
                 i -= rrtlen(f);
                 c += rrtlen(f);
             }
             ret++;
 
         } else if (rr->signature[0]=='Z' && rr->signature[1]=='F' &&
             isonum_711(&rr->len)==16) {
                 /* Linux-specific extension: transparent decompression */
                 rrentry->z_algo[0]=rr->u.ZF.algorithm[0];
                 rrentry->z_algo[1]=rr->u.ZF.algorithm[1];
                 rrentry->z_params[0]=rr->u.ZF.parms[0];
                 rrentry->z_params[1]=rr->u.ZF.parms[1];
                 rrentry->z_size=isonum_733(rr->u.ZF.real_size);
                 ret++;
         } else {
 /*          printf("SUSP sign: %c%c\n",rr->signature[0],rr->signature[1]); */
         }
 
         susplen -= isonum_711(&rr->len);
         r += isonum_711(&rr->len);
         rr = (struct rock_ridge*) r;
     }
 
     return ret;
 }
 
 /**
  * Iterates over the directory entries. The directory is in 'buf',
  * the size of the directory is 'size'. 'callback' is called for each
  * directory entry with the parameter 'udata'.
  */
 int ProcessDir(readfunc *read,int extent,int size,dircallback *callback,void *udata) {
 
     int pos=0,ret=0,siz;
     char *buf;
     struct iso_directory_record *idr;
 
     if (size & 2047) {
         siz=((size>>11)+1)<<11;
     } else {
         siz=size;
     }
 
     buf=(char*) malloc(siz);
     if (!buf) return -ENOMEM;
     if (read(buf,extent,siz>>11,udata)!=siz>>11) {
         free(buf);
         return -EIO;
     }
 
     while (size>0) {
         idr=(struct iso_directory_record*) &buf[pos];
         if (isonum_711(idr->length)==0) {
             size-=(2048 - (pos & 0x7ff));
             if (size<=2) break;
             pos+=0x800;
             pos&=0xfffff800;
             idr=(struct iso_directory_record*) &buf[pos];
         }
         pos+=isonum_711(idr->length);
         pos+=isonum_711(idr->ext_attr_length);
         size-=isonum_711(idr->length);
         size-=isonum_711(idr->ext_attr_length);
         if (size<0) break;
 
         if (isonum_711(idr->length)
 <33 ||
             isonum_711(idr->length)<33+isonum_711(idr->name_len)) {
             /* Invalid directory entry */
             continue;
         }
         if ((ret=callback(idr,udata))) break;
     }
 
     free(buf);
     return ret;
 }
 
 /**
  * returns the joliet level from the volume descriptor
  */
 int JolietLevel(struct iso_volume_descriptor *ivd) {
     int ret=0;
     struct iso_supplementary_descriptor *isd;
 
     isd = (struct iso_supplementary_descriptor *) ivd;
 
     if (isonum_711(ivd->type)==ISO_VD_SUPPLEMENTARY) {
         if (isd->escape[0]==0x25 &&
             isd->escape[1]==0x2f) {
 
             switch (isd->escape[2]) {
                 case 0x40:
                     ret=1;
                     break;
                 case 0x43:
                     ret=2;
                     break;
                 case 0x45:
                     ret=3;
                     break;
             }
         }
     }
     return ret;
 }
 
 /********************************************************************/
 #if 0
 
 #include <time.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <iconv.h>
 
 int level=0,joliet=0,dirs,files;
 iconv_t iconv_d;
 int fd;
 
 int readf(char *buf, int start, int len,void *udata) {
     int ret;
 
     if ((ret=lseek(fd, start << 11, SEEK_SET))<0) return ret;
     ret=read(fd, buf, len << 11);
     if (ret<0) return ret;
     return (ret >> 11);
 }
 
 void dumpchars(char *c,int len) {
     while (len>0) {
         printf("%c",*c);
         len--;
         c++;
     }
 }
 
 void sp(int num) {
     int i;
     for (i=0;i<num*5;i++) { printf(" "); };
 }
 
 void dumpflags(char flags) {
     if (flags & 1) printf("HIDDEN ");
     if (flags & 2) printf("DIR ");
     if (flags & 4) printf("ASF ");
 }
 
 void dumpjoliet(char *c,int len) {
 
     char outbuf[255];
     size_t out;
     int ret;
     char *outptr;
 
     outptr=(char*) &outbuf;
     out=255;
     if ((iconv(iconv_d,&c,&len,&outptr,&out))<0) {
         printf("conversion error=%d",errno);
         return;
     }
     ret=255-out;
     dumpchars((char*) &outbuf,ret);
 }
 
 void dumpchardesc(char *c,int len) {
 
     if (joliet)
         dumpjoliet(c,len);
     else {
         dumpchars(c,len);
     }
 }
 
 void dumpiso915time(char *t, int hs) {
 
     time_t time;
     char *c;
 
     time=isodate_915(t,hs);
     c=(char*) ctime(&time);
     if (c && c[strlen(c)-1]==0x0a) c[strlen(c)-1]=0;
     if (c) printf("%s",c);
 }
 
 void dumpiso84261time(char *t, int hs) {
 
     time_t time;
     char *c;
 
     time=isodate_84261(t,hs);
     c=(char*) ctime(&time);
     if (c && c[strlen(c)-1]==0x0a) c[strlen(c)-1]=0;
     if (c) printf("%s",c);
 }
 
 void dumpdirrec(struct iso_directory_record *dir) {
 
     if (isonum_711(dir->name_len)==1) {
         switch (dir->name[0]) {
         case 0:
             printf(".");
             break;
         case 1:
             printf("..");
             break;
         default:
             printf("%c",dir->name[0]);
             break;
         }
     }
     dumpchardesc(dir->name,isonum_711(dir->name_len));
     printf(" size=%d",isonum_733(dir->size));
     printf(" extent=%d ",isonum_733(dir->extent));
     dumpflags(isonum_711(dir->flags));
     dumpiso915time((char*) &(dir->date),0);
 }
 
 void dumprrentry(rr_entry *rr) {
     printf("  NM=[%s] uid=%d gid=%d nlink=%d mode=%o ",
         rr->name,rr->uid,rr->gid,rr->nlink,rr->mode);
     if (S_ISCHR(rr->mode) || S_ISBLK(rr->mode))
         printf("major=%d minor=%d ",rr->dev_major,rr->dev_minor);
     if (rr->mode & S_IFLNK && rr->sl) printf("slink=%s ",rr->sl);
 /*
     printf("\n");
     if (rr->t_creat) printf("t_creat: %s",ctime(&rr->t_creat));
     if (rr->rr_st_mtime) printf("rr_st_mtime: %s",ctime(&rr->rr_st_mtime));
     if (rr->rr_st_atime) printf("rr_st_atime: %s",ctime(&rr->rr_st_atime));
     if (rr->rr_st_ctime) printf("rr_st_ctime: %s",ctime(&rr->rr_st_ctime));
     if (rr->t_backup) printf("t_backup: %s",ctime(&rr->t_backup));
     if (rr->t_expire) printf("t_expire: %s",ctime(&rr->t_expire));
     if (rr->t_effect) printf("t_effect: %s",ctime(&rr->t_effect));
 */
 }
 
 void dumpsusp(char *c, int len) {
     dumpchars(c,len);
 }
 
 void dumpboot(struct el_torito_boot_descriptor *ebd) {
     printf("version: %d\n",isonum_711(ebd->version));
     printf("system id: ");dumpchars(ebd->system_id,ISODCL(8,39));printf("\n");
     printf("boot catalog start: %d\n",isonum_731(ebd->boot_catalog));
 }
 
 void dumpdefentry(struct default_entry *de) {
     printf("Default entry: \n");
     printf("  bootid=%x\n",isonum_711(de->bootid));
     printf("  media emulation=%d (",isonum_711(de->media));
     switch(isonum_711(de->media) & 0xf) {
         case 0:
             printf("No emulation");
             break;
         case 1:
             printf("1.2 Mb floppy");
             break;
         case 2:
             printf("1.44 Mb floppy");
             break;
         case 3:
             printf("2.88 Mb floppy");
             break;
         case 4:
             printf("Hard Disk");
             break;
         default:
             printf("Unknown/Invalid");
             break;
     }
     printf(")\n");
     printf("  loadseg=%d\n",isonum_721(de->loadseg));
     printf("  systype=%d\n",isonum_711(de->systype));
     printf("  start lba=%d count=%d\n",isonum_731(de->start),
         isonum_721(de->seccount));
 }
 
 void dumpbootcat(boot_head *bh) {
     boot_entry *be;
 
     printf("System id: ");dumpchars(bh->ventry.id,ISODCL(28,5));printf("\n");
     be=bh->defentry;
     while (be) {
         dumpdefentry(be->data);
         be=be->next;
     }
 }
 
 void dumpdesc(struct iso_primary_descriptor *ipd) {
 
     printf("system id: ");dumpchardesc(ipd->system_id,ISODCL(9,40));printf("\n");
     printf("volume id: ");dumpchardesc(ipd->volume_id,ISODCL(41,72));printf("\n");
     printf("volume space size: %d\n",isonum_733(ipd->volume_space_size));
     printf("volume set size: %d\n",isonum_723(ipd->volume_set_size));
     printf("volume seq num: %d\n",isonum_723(ipd->volume_set_size));
     printf("logical block size: %d\n",isonum_723(ipd->logical_block_size));
     printf("path table size: %d\n",isonum_733(ipd->path_table_size));
     printf("location of type_l path table: %d\n",isonum_731(ipd->type_l_path_table));
     printf("location of optional type_l path table: %d\n",isonum_731(ipd->opt_type_l_path_table));
     printf("location of type_m path table: %d\n",isonum_732(ipd->type_m_path_table));
     printf("location of optional type_m path table: %d\n",isonum_732(ipd->opt_type_m_path_table));
 /*
     printf("Root dir record:\n");dumpdirrec((struct iso_directory_record*) &ipd->root_directory_record);
 */
     printf("Volume set id: ");dumpchardesc(ipd->volume_set_id,ISODCL(191,318));printf("\n");
     printf("Publisher id: ");dumpchardesc(ipd->publisher_id,ISODCL(319,446));printf("\n");
     printf("Preparer id: ");dumpchardesc(ipd->preparer_id,ISODCL(447,574));printf("\n");
     printf("Application id: ");dumpchardesc(ipd->application_id,ISODCL(575,702));printf("\n");
     printf("Copyright id: ");dumpchardesc(ipd->copyright_file_id,ISODCL(703,739));printf("\n");
     printf("Abstract file id: ");dumpchardesc(ipd->abstract_file_id,ISODCL(740,776));printf("\n");
     printf("Bibliographic file id: ");dumpchardesc(ipd->bibliographic_file_id,ISODCL(777,813));printf("\n");
     printf("Volume creation date: ");dumpiso84261time(ipd->creation_date,0);printf("\n");
     printf("Volume modification date: ");dumpiso84261time(ipd->modification_date,0);printf("\n");
     printf("Volume expiration date: ");dumpiso84261time(ipd->expiration_date,0);printf("\n");
     printf("Volume effective date: ");dumpiso84261time(ipd->effective_date,0);printf("\n");
     printf("File structure version: %d\n",isonum_711(ipd->file_structure_version));
 }
 
 int mycallb(struct iso_directory_record *idr,void *udata) {
     rr_entry rrentry;
 
     sp(level);dumpdirrec(idr);
     if (level==0) printf(" (Root directory) ");
     printf("\n");
 
     if (ParseRR(idr,&rrentry)>0) {
         sp(level);printf("  ");dumprrentry(&rrentry);printf("\n");
     }
     FreeRR(&rrentry);
     if ( !(idr->flags[0] & 2) ) files++;
     if ( (idr->flags[0] & 2) && (level==0 || isonum_711(idr->name_len)>1) ) {
         level++;
         dirs++;
         ProcessDir(&readf,isonum_733(idr->extent),isonum_733(idr->size),&mycallb,udata);
         level--;
     }
     return 0;
 }
 
 /************************************************/
 
 int main(int argc, char *argv[]) {
 
     int i=1,sector=0;
     iso_vol_desc *desc;
     boot_head boot;
 
     if (argc<2) {
         fprintf(stderr,"\nUsage: %s iso-file-name or device [starting sector]\n\n",argv[0]);
         return 0;
     }
     if (argc>=3) {
         sector=atoi(argv[2]);
         printf("Using starting sector number %d\n",sector);
     }
     fd=open(argv[1],O_RDONLY);
     if (fd<0) {
         fprintf(stderr,"open error\n");
         return -1;
     }
     iconv_d=iconv_open("ISO8859-2","UTF16BE");
     if (iconv_d==0) {
         fprintf(stderr,"iconv open error\n");
         return -1;
     }
 
     desc=ReadISO9660(&readf,sector,NULL);
     if (!desc) {
         printf("No volume descriptors\n");
         return -1;
     }
     while (desc) {
 
         printf("\n\n--------------- Volume descriptor (%d.) type %d: ---------------\n\n",
             i,isonum_711(desc->data.type));
         switch (isonum_711(desc->data.type)) {
             case ISO_VD_BOOT: {
 
                 struct el_torito_boot_descriptor* bootdesc;
                 bootdesc=&(desc->data);
                 dumpboot(bootdesc);
                 if ( !memcmp(EL_TORITO_ID,bootdesc->system_id,ISODCL(8,39)) ) {
 
                     if (ReadBootTable(&readf,isonum_731(bootdesc->boot_catalog),&boot,NULL)) {
                         printf("Boot Catalog Error\n");
                     } else {
                         dumpbootcat(&boot);
                         FreeBootTable(&boot);
                     }
                 }
             }
                 break;
 
             case ISO_VD_PRIMARY:
             case ISO_VD_SUPPLEMENTARY:
                 joliet=0;
                 joliet = JolietLevel(&desc->data);
                 printf("Joliet level: %d\n",joliet);
                 dumpdesc((struct iso_primary_descriptor*) &desc->data);
                 printf("\n\n--------------- Directory structure: -------------------\n\n");
                 dirs=0;files=0;
                 mycallb( &( ((struct iso_primary_descriptor*) &desc->data)->root_directory_record), NULL );
                 printf("\nnumber of directories: %d\n",dirs);
                 printf("\nnumber of files: %d\n",files);
                 break;
 
         }
         desc=desc->next;
         i++;
     }
     iconv_close(iconv_d);
     close(fd);
     FreeISO9660(desc);
     return 0;
 }
 
 #endif