Files
finit/src/util.h
T
Joachim Wiberg d331b72dfd Relocate ismnt() and fismnt() to util.c, for sharing with initctl
initctl cannot link with helpers.c, so let's relocate these helper
functions to util.c instead.  Need them to probe for cgroup support.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2022-01-10 20:26:37 +01:00

123 lines
3.2 KiB
C

/* Misc. shared utility functions for initctl, reboot and finit
*
* Copyright (c) 2016-2021 Joachim Wiberg <troglobit@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef FINIT_UTIL_H_
#define FINIT_UTIL_H_
#include "config.h"
#ifdef HAVE_TERMIOS_H
#include <poll.h>
#include <stdio.h>
#include <stdarg.h>
#include <sys/reboot.h>
#include <termios.h>
#endif
#ifndef RB_SW_SUSPEND /* Since Linux 2.5.18, but not in GLIBC until 2.19 */
#define RB_SW_SUSPEND 0xd000fce2
#endif
extern int debug; /* defined in finit or initctl */
extern int ttrows;
extern int ttcols;
extern char *prognm;
/* Define for printheader() from conio.h, used in initctl */
#define SCREEN_WIDTH ttcols
#ifdef _LIBITE_LITE
# include <libite/conio.h>
# include <libite/lite.h>
#else
# include <lite/conio.h>
# include <lite/lite.h>
#endif
char *progname (char *arg0);
char *str (char *fmt, ...);
int fnread (char *buf, size_t len, char *fmt, ...);
int fnwrite (char *value, char *fmt, ...);
int fngetint (char *path, int *val);
int strtobytes (char *arg);
char *sig2str (int sig);
char *code2str (int code);
void do_sleep (unsigned int sec);
long jiffies (void);
char *uptime (long secs, char *buf, size_t len);
char *memsz (uint64_t sz, char *buf, size_t len);
char *sanitize (char *arg, size_t len);
int ismnt (char *file, char *dir, char *mode);
int fismnt (char *dir);
#ifdef HAVE_TERMIOS_H
int ttinit (void);
int ttraw (void);
int ttcooked (void);
#else
#define ttinit() ttcols
#define ttraw() 0
#define ttcooked() 0
#endif
static inline void dbg(char *fmt, ...)
{
va_list ap;
if (!debug)
return;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
static inline char *strterm(char *str, size_t len)
{
str[len - 1] = 0;
return str;
}
/* paste dir/file into buf */
static inline int paste(char *buf, size_t len, const char *dir, const char *file)
{
if (!dir)
dir = "";
if (!file)
file = "";
return snprintf(buf, len, "%s%s%s", dir, fisslashdir(dir) ? "" : "/", file);
}
#endif /* FINIT_UTIL_H_ */
/**
* Local Variables:
* indent-tabs-mode: t
* c-file-style: "linux"
* End:
*/