diff options
Diffstat (limited to 'man/man4')
| -rw-r--r-- | man/man4/loop.4 | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/man/man4/loop.4 b/man/man4/loop.4 index 8997a9aca0..a497ab0399 100644 --- a/man/man4/loop.4 +++ b/man/man4/loop.4 @@ -308,6 +308,7 @@ loopname = /dev/loop5 .SS Program source \& .EX +#include <err.h> #include <fcntl.h> #include <linux/loop.h> #include <sys/ioctl.h> @@ -315,9 +316,6 @@ loopname = /dev/loop5 #include <stdlib.h> #include <unistd.h> \& -#define errExit(msg) do { perror(msg); exit(EXIT_FAILURE); \[rs] - } while (0) -\& int main(int argc, char *argv[]) { @@ -332,25 +330,25 @@ main(int argc, char *argv[]) \& loopctlfd = open("/dev/loop\-control", O_RDWR); if (loopctlfd == \-1) - errExit("open: /dev/loop\-control"); + err(EXIT_FAILURE, "open: /dev/loop\-control"); \& devnr = ioctl(loopctlfd, LOOP_CTL_GET_FREE); if (devnr == \-1) - errExit("ioctl\-LOOP_CTL_GET_FREE"); + err(EXIT_FAILURE, "ioctl\-LOOP_CTL_GET_FREE"); \& sprintf(loopname, "/dev/loop%ld", devnr); printf("loopname = %s\[rs]n", loopname); \& loopfd = open(loopname, O_RDWR); if (loopfd == \-1) - errExit("open: loopname"); + err(EXIT_FAILURE, "open: loopname"); \& backingfile = open(argv[1], O_RDWR); if (backingfile == \-1) - errExit("open: backing\-file"); + err(EXIT_FAILURE, "open: backing\-file"); \& if (ioctl(loopfd, LOOP_SET_FD, backingfile) == \-1) - errExit("ioctl\-LOOP_SET_FD"); + err(EXIT_FAILURE, "ioctl\-LOOP_SET_FD"); \& exit(EXIT_SUCCESS); } |