diff options
Diffstat (limited to 'man4/loop.4')
| -rw-r--r-- | man4/loop.4 | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/man4/loop.4 b/man4/loop.4 index 5f923d1ba..72a243192 100644 --- a/man4/loop.4 +++ b/man4/loop.4 @@ -313,44 +313,44 @@ loopname = /dev/loop5 #include <stdio.h> #include <stdlib.h> #include <unistd.h> - +\& #define errExit(msg) do { perror(msg); exit(EXIT_FAILURE); \e } while (0) - +\& int main(int argc, char *argv[]) { int loopctlfd, loopfd, backingfile; long devnr; char loopname[4096]; - +\& if (argc != 2) { fprintf(stderr, "Usage: %s backing\-file\en", argv[0]); exit(EXIT_FAILURE); } - +\& loopctlfd = open("/dev/loop\-control", O_RDWR); if (loopctlfd == \-1) errExit("open: /dev/loop\-control"); - +\& devnr = ioctl(loopctlfd, LOOP_CTL_GET_FREE); if (devnr == \-1) errExit("ioctl\-LOOP_CTL_GET_FREE"); - +\& sprintf(loopname, "/dev/loop%ld", devnr); printf("loopname = %s\en", loopname); - +\& loopfd = open(loopname, O_RDWR); if (loopfd == \-1) errExit("open: loopname"); - +\& backingfile = open(argv[1], O_RDWR); if (backingfile == \-1) errExit("open: backing\-file"); - +\& if (ioctl(loopfd, LOOP_SET_FD, backingfile) == \-1) errExit("ioctl\-LOOP_SET_FD"); - +\& exit(EXIT_SUCCESS); } .EE |