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fanotify.7: Minor code typesetting fix-ups 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2019-06-08 09:34:45 +02:00
parent 87d12b1b2f
commit 5ff63f5163
1 changed files with 22 additions and 21 deletions
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43
man7/fanotify.7
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@ -405,7 +405,7 @@ also contains a
field.
In the current implementation, the value of
.I len
is always (event_len - FAN_EVENT_METADATA_LEN).
is always (event_len \- FAN_EVENT_METADATA_LEN).
.TP
.I fsid
This is a unique identifier of the filesystem containing the object
@ -771,7 +771,7 @@ Listening for events.
FAN_CREATE | FAN_ONDIR (subdirectory created): Directory /home/user has been modified.
All events processed successfully. Program exiting.
$ mkdir -p /home/user/testing
$ mkdir \-p /home/user/testing
.EE
.in
.SS Program source: fanotify_example.c
@ -787,7 +787,7 @@ $ mkdir -p /home/user/testing
#include <sys/fanotify.h>
#include <unistd.h>
/* Read all available fanotify events from the file descriptor 'fd' */
/* Read all available fanotify events from the file descriptor \(aqfd\(aq */
static void
handle_events(int fd)
@ -868,7 +868,7 @@ handle_events(int fd)
exit(EXIT_FAILURE);
}
path[path_len] = '\e0';
path[path_len] = \(aq\e0\(aq;
printf("File %s\en", path);
/* Close the file descriptor of the event */
@ -954,7 +954,7 @@ main(int argc, char *argv[])
/* Console input is available: empty stdin and quit */
while (read(STDIN_FILENO, &buf, 1) > 0 && buf != '\en')
while (read(STDIN_FILENO, &buf, 1) > 0 && buf != \(aq\en\(aq)
continue;
break;
}
@ -1002,7 +1002,7 @@ int main(int argc, char **argv)
struct fanotify_event_info_fid *fid;
if (argc != 2) {
fprintf(stderr, "Invalid number of command line arguments.\\n");
fprintf(stderr, "Invalid number of command line arguments.\e\n");
exit(EXIT_FAILURE);
}
@ -1010,7 +1010,7 @@ int main(int argc, char **argv)
so that program can receive fid events. */
fd = fanotify_init(FAN_CLASS_NOTIF | FAN_REPORT_FID, 0);
if (fd == -1) {
if (fd == \-1) {
perror("fanotify_init");
exit(EXIT_FAILURE);
}
@ -1020,17 +1020,17 @@ int main(int argc, char **argv)
ret = fanotify_mark(fd, FAN_MARK_ADD | FAN_MARK_ONLYDIR,
FAN_CREATE | FAN_ONDIR,
AT_FDCWD, argv[1]);
if (ret == -1) {
if (ret == \-1) {
perror("fanotify_mark");
exit(EXIT_FAILURE);
}
printf("Listening for events.\\n");
printf("Listening for events.\e\n");
/* Read events from the event queue into a buffer */
len = read(fd, (void *) &events_buf, sizeof(events_buf));
if (len == -1 && errno != EAGAIN) {
if (len == \-1 && errno != EAGAIN) {
perror("read");
exit(EXIT_FAILURE);
}
@ -1046,7 +1046,7 @@ int main(int argc, char **argv)
/* 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");
fprintf(stderr, "Received unexpected event info type.\e\n");
exit(EXIT_FAILURE);
}
@ -1058,17 +1058,17 @@ int main(int argc, char **argv)
/* 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
an event you can use the struct file_handle that\(aqs provided
within the fanotify_event_info_fid in conjunction with the
open_by_handle_at(2) system call. A check for -ESTALE is done
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");
if (ret == \-1 && errno == ESTALE) {
printf("File handle is no longer valid. File has been deleted\e\n");
continue;
} else if (ret == -1) {
} else if (ret == \-1) {
perror("open_by_handle_at");
exit(EXIT_FAILURE);
}
@ -1077,20 +1077,21 @@ int main(int argc, char **argv)
/* Retrieve and print the path of the modified dentry */
path_len = readlink(procfd_path, path, sizeof(path) - 1);
if (path_len == -1) {
path_len = readlink(procfd_path, path, sizeof(path) \- 1);
if (path_len == \-1) {
perror("readlink");
exit(EXIT_FAILURE);
}
path[path_len] = '\\0';
printf("Directory '%s' has been modified.\\n", path);
path[path_len] = \(aq\e\0\(aq;
printf("Directory \(aq%s\(aq has been modified.\e\n", path);
/* Close associated file descriptor for this event */
close(event_fd);
}
printf("All events processed successfully. Program exiting.\\n");
printf("All events processed successfully. Program exiting.\e\n");
exit(EXIT_SUCCESS);
}
.EE