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Learned how to inquire size of disk-like FreeBSD devices

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This commit is contained in:
Thomas Schmitt
2010-01-21 10:46:04 +00:00
parent 95865ee34d
commit da1d260753
3 changed files with 43 additions and 7 deletions
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14
libburn/sg-freebsd.c
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@ -17,10 +17,12 @@
#include <err.h> /* XXX */
/* ts A70909 */
#include <sys/statvfs.h>
/* ts B00121 */
#include <sys/disk.h> /* DIOCGMEDIASIZE */
#include "transport.h"
#include "drive.h"
@ -910,6 +912,7 @@ int burn_os_stdio_capacity(char *path, off_t *bytes)
char testpath[4096], *cpt;
long blocks;
off_t add_size = 0;
int fd, ret;
testpath[0] = 0;
blocks = *bytes / 512;
@ -944,6 +947,15 @@ int burn_os_stdio_capacity(char *path, off_t *bytes)
#endif /* Libburn_if_this_was_linuX */
} else if(S_ISCHR(stbuf.st_mode)) {
fd = open(path, O_RDONLY);
if (fd == -1)
return -2;
ret = ioctl(fd, DIOCGMEDIASIZE, &add_size);
close(fd);
if (ret == -1)
return -2;
*bytes = add_size;
} else if(S_ISREG(stbuf.st_mode)) {
add_size = stbuf.st_blocks * (off_t) 512;
strcpy(testpath, path);