Implemented resolving of softlinks (ticket 33)
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@ -163,11 +163,13 @@ or
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#ifdef Cdrskin_libburn_0_2_3
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#define Cdrskin_libburn_versioN "0.2.3"
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#define Cdrskin_libburn_from_pykix_svN 1
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#define Cdrskin_libburn_has_is_enumerablE 1
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#endif
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#ifndef Cdrskin_libburn_versioN
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#define Cdrskin_libburn_versioN "0.2.3"
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#define Cdrskin_libburn_from_pykix_svN 1
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#define Cdrskin_libburn_has_is_enumerablE 1
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#endif
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#ifdef Cdrskin_libburn_from_pykix_svN
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@ -247,7 +249,6 @@ or
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#include <stdio.h>
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#include <assert.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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@ -1153,6 +1154,9 @@ struct CdrpreskiN {
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/** Wether an option is given which needs a full bus scan */
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int no_whitelist;
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/** Wether the translated device address shall follow softlinks */
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int no_follow_links;
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/** Wether bus scans shall exit!=0 if no drive was found */
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int scan_demands_drive;
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@ -1206,6 +1210,7 @@ int Cdrpreskin_new(struct CdrpreskiN **preskin, int flag)
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o->allow_setuid= 0;
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o->allow_fd_source= 0;
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o->no_whitelist= 0;
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o->no_follow_links= 0;
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o->scan_demands_drive= 0;
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o->abort_on_busy_drive= 0;
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o->drive_exclusive= 1;
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@ -1250,6 +1255,37 @@ int Cdrpreskin_destroy(struct CdrpreskiN **preskin, int flag)
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}
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/** Evaluate wether the given address would surely be enumerated by libburn */
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int Cdrpreskin__is_enumerable_adr(char *adr, int flag)
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{
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#ifdef Cdrskin_libburn_has_is_enumerablE
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int ret;
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ret= burn_drive_is_enumerable_adr(adr);
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return(!!ret);
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#else
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int i;
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char dev[80];
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for(i=0;i<32;i++) {
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sprintf(dev,"/dev/sg%d",i);
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if(strcmp(adr,dev)==0)
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return(1);
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}
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for(i=0;i<26;i++) {
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sprintf(dev,"/dev/hd%c",'a'+i);
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if(strcmp(adr,dev)==0)
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return(1);
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}
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return(0);
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#endif
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}
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/** Convert a cdrecord-style device address into a libburn device address or
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into a libburn drive number. It depends on the "scsibus" number of the
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cdrecord-style address which kind of libburn address emerges:
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@ -1352,8 +1388,10 @@ return:
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2 end program run (--help)
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*/
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{
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int i,ret,bragg_with_audio= 0;
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char *value_pt;
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int i,k,ret,bragg_with_audio= 0;
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char *value_pt,link_adr[Cdrskin_strleN+1];
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char link_target[Cdrskin_strleN+1];
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struct stat stbuf;
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#ifndef Cdrskin_extra_leaN
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if(argc>1)
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@ -1564,6 +1602,7 @@ set_dev:;
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" --ignore_signals try to ignore any signals rather than to abort\n");
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printf(" --no_abort_handler exit even if the drive is in busy state\n");
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printf(" --no_blank_appendable refuse to blank appendable CD-RW\n");
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printf(" --no_follow_links with dev= do not resolve symbolic links\n");
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printf(
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" --no_rc as first argument: do not read startup files\n");
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printf(
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@ -1670,6 +1709,9 @@ see_cdrskin_eng_html:;
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} else if(strcmp(argv[i],"--no_abort_handler")==0) {
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o->abort_handler= 0;
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} else if(strcmp(argv[i],"--no_follow_links")==0) {
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o->no_follow_links= 0;
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} else if(strcmp(argv[i],"--no_rc")==0) {
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if(i!=1)
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fprintf(stderr,
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@ -1748,6 +1790,33 @@ dev_too_long:;
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{ret= 0; goto ex;}
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}
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}
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if(!o->no_follow_links) {
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strcpy(link_adr,o->device_adr);
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while(lstat(link_adr,&stbuf)!=-1) {
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if(Cdrpreskin__is_enumerable_adr(link_adr,0))
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break;
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if((stbuf.st_mode&S_IFMT)!=S_IFLNK)
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break;
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ret= readlink(link_adr,link_target,Cdrskin_strleN+1);
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if(ret>=Cdrskin_strleN) {
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link_too_long:;
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fprintf(stderr,
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"cdrskin: FATAL : Link target address too long (max. %d chars)\n",
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Cdrskin_strleN-1);
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{ret= 0; goto ex;}
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}
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for(k=0;k<ret;k++)
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link_adr[k]= link_target[k];
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link_adr[k]= 0;
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}
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if(strcmp(link_adr,o->device_adr)!=0) {
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fprintf(stderr,"cdrskin: NOTE : Followed link '%s' to target '%s'\n",
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o->device_adr,link_adr);
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if(strlen(link_adr)>=sizeof(o->device_adr))
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goto link_too_long;
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strcpy(o->device_adr,link_adr);
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}
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}
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}
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ex:;
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@ -3615,6 +3684,12 @@ int Cdrskin_eject(struct CdrskiN *skin, int flag)
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if(!skin->do_eject)
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return(1);
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/* not active yet :
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if(skin->n_drives<=skin->driveno)
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return(2);
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*/
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for(i= 0;i<max_try;i++) {
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ret= Cdrskin_grab_drive(skin,2|((i<max_try-1)<<2));
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if(ret>0 || i>=max_try-1)
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@ -4031,6 +4106,9 @@ gracetime_equals:;
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} else if(strcmp(argv[i],"--no_blank_appendable")==0) {
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skin->no_blank_appendable= 1;
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} else if(strcmp(argv[i],"--no_follow_links")==0) {
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/* is handled in Cdrpreskin_setup() */;
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} else if(strcmp(argv[i],"--no_rc")==0) {
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/* is handled in Cdrpreskin_setup() */;
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@ -4226,7 +4304,12 @@ ignore_unknown:;
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printf("cdrskin: will install abort handler in eventual burn loop.\n");
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}
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if(strlen(skin->preskin->raw_device_adr)>0) {
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if(strlen(skin->preskin->raw_device_adr)>0 ||
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strlen(skin->preskin->device_adr)>0) {
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if(strlen(skin->preskin->device_adr)>0)
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ret= Cdrskin_dev_to_driveno(skin,skin->preskin->device_adr,
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&(skin->driveno),0);
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else
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ret= Cdrskin_dev_to_driveno(skin,skin->preskin->raw_device_adr,
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&(skin->driveno),0);
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if(ret<=0)
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@ -663,3 +663,10 @@ int burn_drive_get_adr(struct burn_drive_info *drive_info, char adr[])
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return 1;
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}
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/* ts A60922 ticket 33 */
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/** Evaluate wether the given address would be enumerated by libburn */
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int burn_drive_is_enumerable_adr(char *adr)
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{
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return sg_is_enumerable_adr(adr);
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}
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@ -579,6 +579,11 @@ void burn_drive_info_free(struct burn_drive_info drive_infos[]);
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*/
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int burn_drive_get_adr(struct burn_drive_info *drive_info, char adr[]);
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/* ts A60922 ticket 33 */
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/** Evaluate wether the given address would be enumerated by libburn
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@return 1 means yes, 0 means no */
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int burn_drive_is_enumerable_adr(char *adr);
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/** Grab a drive. This must be done before the drive can be used (for reading,
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writing, etc).
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22
libburn/sg.c
22
libburn/sg.c
@ -56,6 +56,28 @@ static int sgio_test(int fd)
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return ioctl(fd, SG_IO, &s);
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}
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/* ts A60922 ticket 33 */
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int sg_is_enumerable_adr(char *adr)
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{
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char fname[10];
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int i;
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for (i = 0; i < 26; i++) {
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sprintf(fname, "/dev/hd%c", 'a' + i);
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if (strcmp(adr, fname) == 0)
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return 1;
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}
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for (i = 0; i < 32; i++) {
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sprintf(fname, "/dev/sg%d", i);
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if (strcmp(adr, fname) == 0)
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return 1;
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}
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return 0;
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}
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void ata_enumerate(void)
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{
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struct hd_driveid tm;
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@ -9,6 +9,9 @@ struct command;
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enum response
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{ RETRY, FAIL };
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/* ts A60922 ticket 33 */
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int sg_is_enumerable_adr(char *adr);
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void sg_enumerate(void);
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void ata_enumerate(void);
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int sg_grab(struct burn_drive *);
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