slstatus/components/entropy.c

/* See LICENSE file for copyright and license details. */
#if defined(__linux__)
#include <stdio.h>

#include "../util.h"

const char *
entropy(void)
{
	int num;

	return (pscanf("/proc/sys/kernel/random/entropy_avail", "%d", &num) == 1) ?
	               bprintf("%d", num) : NULL;
}
#endif
Added LICENSE statements to all source files 2017-09-17 15:45:03 +00:00			`/* See LICENSE file for copyright and license details. */`
More robust preprocessor switches Replace #ifdef with #if defined() and #elif with #elif defined() as it should only test if it is defined or not. 2018-03-21 11:21:37 +00:00			`#if defined(__linux__)`
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 14:18:17 +00:00			`#include <stdio.h>`

Move components into dedicated subdirectory This brings us a lot more tidiness. 2017-09-24 13:33:01 +00:00			`#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 14:18:17 +00:00
			`const char *`
			`entropy(void)`
			`{`
			`int num;`

			`return (pscanf("/proc/sys/kernel/random/entropy_avail", "%d", &num) == 1) ?`
			`bprintf("%d", num) : NULL;`
			`}`
Build Linux-only functions only on Linux 2018-03-18 22:26:13 +00:00			`#endif`