hellerve/cd_check
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Updated for better error messages

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This commit is contained in:
Veit Heller
2014-12-17 13:55:06 +01:00
parent ca5fa0bc0e
commit 383e922d22
4 changed files with 43 additions and 22 deletions
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16
src/cd_check_read_toc.c
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@@ -6,26 +6,30 @@
#include <fcntl.h>
#include <linux/cdrom.h>
const char* program_name;
static inline void die(int code, const char* message){
fprintf(stderr, "%s\n", message);
fprintf(stderr, "%s: %s\n", program_name, message);
exit(code);
}
int main(){
int main(int argc, char** argv){
register int fd;
register unsigned char i;
struct cdrom_tochdr toc_hdr;
struct cdrom_tocentry toc_entry;
program_name = argv[0];
if((fd = open("/dev/cdrom", O_RDONLY)) == -1){
if(errno == ENOMEDIUM)
die(127, "cd_check_read_toc: No CD in drive");
die(127, "No CD in drive");
else
die(127, "cd_check_read_toc: Cannot open /dev/cdrom");
die(127, "Cannot open /dev/cdrom");
}
if(ioctl(fd, CDROMREADTOCHDR, &toc_hdr) == -1)
die(127, "cd_check_read_toc: Cannot get header");
die(127, "Cannot get header");
printf("First track: %d\nLast track: %d\n\n trackno) length\n",
toc_hdr.cdth_trk0, toc_hdr.cdth_trk1);
@@ -35,7 +39,7 @@ int main(){
toc_entry.cdte_format = CDROM_MSF;
if(ioctl(fd, CDROMREADTOCENTRY, &toc_entry) == -1)
die(127, "cd_check_read_toc: Cannot get table of contents");
die(127, "Cannot get table of contents");
printf(" %2d)\t%02d:%02d.%02d\n", i, toc_entry.cdte_addr.msf.minute,
toc_entry.cdte_addr.msf.second,