hellerve/cd_check
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Added a bit of error checking and such

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This commit is contained in:
Veit Heller
2015-01-25 12:29:43 +01:00
parent 383e922d22
commit a98a5c9a23
5 changed files with 32 additions and 23 deletions
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12
src/cd_check_read_toc.c
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@@ -8,7 +8,8 @@
const char* program_name;
static inline void die(int code, const char* message){
static inline void die(int code, const char* message, int fd){
if(fd != -1) close(fd);
fprintf(stderr, "%s: %s\n", program_name, message);
exit(code);
}
@@ -19,17 +20,18 @@ int main(int argc, char** argv){
struct cdrom_tochdr toc_hdr;
struct cdrom_tocentry toc_entry;
if(!argv) die(127, "How did you do that? No argv?", -1);
program_name = argv[0];
if((fd = open("/dev/cdrom", O_RDONLY)) == -1){
if(errno == ENOMEDIUM)
die(127, "No CD in drive");
die(127, "No CD in drive", fd);
else
die(127, "Cannot open /dev/cdrom");
die(127, "Cannot open /dev/cdrom", fd);
}
if(ioctl(fd, CDROMREADTOCHDR, &toc_hdr) == -1)
die(127, "Cannot get header");
die(127, "Cannot get header", fd);
printf("First track: %d\nLast track: %d\n\n trackno) length\n",
toc_hdr.cdth_trk0, toc_hdr.cdth_trk1);
@@ -39,7 +41,7 @@ int main(int argc, char** argv){
toc_entry.cdte_format = CDROM_MSF;
if(ioctl(fd, CDROMREADTOCENTRY, &toc_entry) == -1)
die(127, "Cannot get table of contents");
die(127, "Cannot get table of contents", fd);
printf(" %2d)\t%02d:%02d.%02d\n", i, toc_entry.cdte_addr.msf.minute,
toc_entry.cdte_addr.msf.second,