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Bug fix: cdrskin SIGSEGV if track source was added when no drive was available

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This commit is contained in:
Thomas Schmitt 2012-04-04 10:10:55 +00:00
parent 7a7591aec5
commit 564ccc36f5
2 changed files with 31 additions and 3 deletions
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32
cdrskin/cdrskin.c
View File

@ -1341,8 +1341,13 @@ int Cdrtrack_open_source_path(struct CdrtracK *track, int *fd, int flag)
else {
*fd= -1;
Cdrskin_get_device_adr(track->boss,&device_adr,&raw_adr,
&no_convert_fs_adr,0);
ret= Cdrskin_get_device_adr(track->boss,&device_adr,&raw_adr,
&no_convert_fs_adr,0);
if(ret <= 0) {
fprintf(stderr,
"cdrskin: FATAL : No drive found. Cannot prepare track.\n");
return(0);
}
/*
fprintf(stderr,
"cdrskin: DEBUG : device_adr='%s' , raw_adr='%s' , ncfs=%d\n",
@ -3706,12 +3711,25 @@ int Cdrskin_destroy(struct CdrskiN **o, int flag)
}
int Cdrskin_assert_driveno(struct CdrskiN *skin, int flag)
{
if(skin->driveno < 0 || (unsigned int) skin->driveno >= skin->n_drives) {
fprintf(stderr,
"cdrskin: FATAL : No drive found. Cannot perform desired operation.\n");
return(0);
}
return(1);
}
/** Return the addresses of the drive. device_adr is the libburn persistent
address of the drive, raw_adr is the address as given by the user.
*/
int Cdrskin_get_device_adr(struct CdrskiN *skin,
char **device_adr, char **raw_adr, int *no_convert_fs_adr, int flag)
{
if(skin->driveno < 0 || (unsigned int) skin->driveno >= skin->n_drives)
return(0);
burn_drive_get_adr(&skin->drives[skin->driveno],skin->device_adr);
*device_adr= skin->device_adr;
*raw_adr= skin->preskin->raw_device_adr;
@ -3782,6 +3800,10 @@ int Cdrskin_attach_fifo(struct CdrskiN *skin, int flag)
int profile_number;
char profile_name[80];
ret= Cdrskin_assert_driveno(skin, 0);
if(ret <= 0)
return(ret);
/* Refuse here and thus use libburn fifo only with single track, non-CD */
ret= burn_disc_get_profile(skin->drives[skin->driveno].drive,
&profile_number, profile_name);
@ -3960,6 +3982,9 @@ int Cdrskin_grab_drive(struct CdrskiN *skin, int flag)
drive= NULL;
skin->grabbed_drive= drive;
} else {
ret= Cdrskin_assert_driveno(skin, 0);
if(ret <= 0)
return(ret);
drive= skin->drives[skin->driveno].drive;
skin->grabbed_drive= drive;
}
@ -8720,12 +8745,15 @@ int Cdrskin_create(struct CdrskiN **o, struct CdrpreskiN **preskin,
{*exit_value= 2; goto ex;}
}
skin->n_drives= 1;
skin->driveno= 0;
burn_drive_release(skin->drives[0].drive, 0);
} else {
while (!burn_drive_scan(&(skin->drives), &(skin->n_drives))) {
usleep(20000);
/* >>> ??? set a timeout ? */
}
if(skin->n_drives <= 0)
skin->driveno= -1;
}
burn_msgs_set_severities(skin->preskin->queue_severity,

2
cdrskin/cdrskin_timestamp.h
View File

@ -1 +1 @@
#define Cdrskin_timestamP "2012.04.02.172347"
#define Cdrskin_timestamP "2012.04.04.100754"