slstatus/components/hostname.c

/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

#include "../util.h"

const char *
hostname(void)
{
	if (gethostname(buf, sizeof(buf)) < 0) {
		fprintf(stderr, "gethostbyname: %s\n", strerror(errno));
		return NULL;
	}

	return buf;
}
Added LICENSE statements to all source files 2017-09-17 16:45:03 +01:00			`/* See LICENSE file for copyright and license details. */`
Format error messages properly Make use of strerror(errno) and format all errors equally: function ['parameters']: error message 2018-03-28 18:46:27 +01:00			`#include <errno.h>`
Get rid of err.h as it is not portable Replace warn() and warnx() with fprintf() and add <stdio.h> where necessary. 2018-03-28 17:26:56 +01:00			`#include <stdio.h>`
Format error messages properly Make use of strerror(errno) and format all errors equally: function ['parameters']: error message 2018-03-28 18:46:27 +01:00			`#include <string.h>`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 15:18:17 +01:00			`#include <unistd.h>`

Move components into dedicated subdirectory This brings us a lot more tidiness. 2017-09-24 14:33:01 +01:00			`#include "../util.h"`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 15:18:17 +01:00
			`const char *`
			`hostname(void)`
			`{`
Fix coding style - Use block for single statement ifs - Keep lines to reasonable length (current debate as to reasonable) - When functions return -1 for error test against 0 not -1 - Do not indent cases another level - Do not test against NULL and 0 explicitly - Use tabs for indentation, use spaces for alignment 2018-05-06 21:28:56 +01:00			`if (gethostname(buf, sizeof(buf)) < 0) {`
Format error messages properly Make use of strerror(errno) and format all errors equally: function ['parameters']: error message 2018-03-28 18:46:27 +01:00			`fprintf(stderr, "gethostbyname: %s\n", strerror(errno));`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 15:18:17 +01:00			`return NULL;`
			`}`

			`return buf;`
			`}`