blob: 3836f5e642aa0863d144448b43e64dbae23cc319 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
/* SPDX-License-Identifier: MIT-0 */
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <systemd/sd-bus.h>
int writer_with_negative_errno_return(int fd, sd_bus_error *error) {
const char *message = "Hello, World!\n";
ssize_t n = write(fd, message, strlen(message));
if (n >= 0)
return n; /* On success, return the number of bytes written, possibly 0. */
/* On error, initialize the error structure, and also propagate the errno
* value that write(2) set for us. */
return sd_bus_error_set_errnof(error, errno, "Failed to write to fd %i: %s", fd, strerror(errno));
}
|
