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fanotify.7: Minor fix: format comments consistently 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2019-06-08 09:32:33 +02:00
parent fa6d3b26e1
commit 87d12b1b2f
1 changed files with 14 additions and 9 deletions
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23
man7/fanotify.7
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@ -1007,8 +1007,8 @@ int main(int argc, char **argv)
}
/* Create an fanotify file descriptor with FAN_REPORT_FID as a flag
* so that program can receive fid events.
*/
so that program can receive fid events. */
fd = fanotify_init(FAN_CLASS_NOTIF | FAN_REPORT_FID, 0);
if (fd == -1) {
perror("fanotify_init");
@ -1016,6 +1016,7 @@ int main(int argc, char **argv)
}
/* Place a mark on the filesystem object supplied in argv[1]. */
ret = fanotify_mark(fd, FAN_MARK_ADD | FAN_MARK_ONLYDIR,
FAN_CREATE | FAN_ONDIR,
AT_FDCWD, argv[1]);
@ -1027,6 +1028,7 @@ int main(int argc, char **argv)
printf("Listening for events.\\n");
/* Read events from the event queue into a buffer */
len = read(fd, (void *) &events_buf, sizeof(events_buf));
if (len == -1 && errno != EAGAIN) {
perror("read");
@ -1034,6 +1036,7 @@ int main(int argc, char **argv)
}
/* Process all events within the buffer */
for (metadata = (struct fanotify_event_metadata *) events_buf;
FAN_EVENT_OK(metadata, len);
metadata = FAN_EVENT_NEXT(metadata, len)) {
@ -1041,6 +1044,7 @@ int main(int argc, char **argv)
file_handle = (struct file_handle *) fid->handle;
/* Ensure that the event info is of the correct type */
if (fid->hdr.info_type != FAN_EVENT_INFO_TYPE_FID) {
fprintf(stderr, "Received unexpected event info type.\\n");
exit(EXIT_FAILURE);
@ -1053,13 +1057,13 @@ int main(int argc, char **argv)
printf("FAN_CREATE | FAN_ONDIR (subdirectory created): ");
/* metadata->fd is set to FAN_NOFD when FAN_REPORT_FID is enabled.
* To obtain a file descriptor for the file object corresponding to
* an event you can use the struct file_handle that's provided
* within the fanotify_event_info_fid in conjunction with the
* open_by_handle_at(2) system call. A check for -ESTALE is done
* to accommodate for the situation where the file handle was
* deleted for the object prior to this system call.
*/
To obtain a file descriptor for the file object corresponding to
an event you can use the struct file_handle that's provided
within the fanotify_event_info_fid in conjunction with the
open_by_handle_at(2) system call. A check for -ESTALE is done
to accommodate for the situation where the file handle was
deleted for the object prior to this system call. */
event_fd = open_by_handle_at(AT_FDCWD, file_handle, O_RDONLY);
if (ret == -1 && errno == ESTALE) {
printf("File handle is no longer valid. File has been deleted\\n");
@ -1072,6 +1076,7 @@ int main(int argc, char **argv)
snprintf(procfd_path, sizeof(procfd_path), "/proc/self/fd/%d", event_fd);
/* Retrieve and print the path of the modified dentry */
path_len = readlink(procfd_path, path, sizeof(path) - 1);
if (path_len == -1) {
perror("readlink");