43318fd0c2
This file contains various preprocessor directed definitions, and other definitions, which most programs need. Signed-off-by: Sami Kerola <kerolasa@iki.fi>
156 lines
3.0 KiB
C
156 lines
3.0 KiB
C
/*
|
|
* Fundamental C definitions.
|
|
*/
|
|
|
|
#ifndef PROCPS_NG_C_H
|
|
#define PROCPS_NG_C_H
|
|
|
|
#include <limits.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#ifdef HAVE_ERR_H
|
|
# include <err.h>
|
|
#endif
|
|
|
|
/*
|
|
* Compiler specific stuff
|
|
*/
|
|
#ifndef __GNUC_PREREQ
|
|
# if defined __GNUC__ && defined __GNUC_MINOR__
|
|
# define __GNUC_PREREQ(maj, min) \
|
|
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
|
|
# else
|
|
# define __GNUC_PREREQ(maj, min) 0
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
* Function attributes
|
|
*/
|
|
#ifndef __ul_alloc_size
|
|
# if __GNUC_PREREQ (4, 3)
|
|
# define __ul_alloc_size(s) __attribute__((alloc_size(s)))
|
|
# else
|
|
# define __ul_alloc_size(s)
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef __ul_calloc_size
|
|
# if __GNUC_PREREQ (4, 3)
|
|
# define __ul_calloc_size(n, s) __attribute__((alloc_size(n, s)))
|
|
# else
|
|
# define __ul_calloc_size(n, s)
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
* Misc
|
|
*/
|
|
#ifndef PATH_MAX
|
|
# define PATH_MAX 4096
|
|
#endif
|
|
|
|
#ifndef TRUE
|
|
# define TRUE 1
|
|
#endif
|
|
|
|
#ifndef FALSE
|
|
# define FALSE 0
|
|
#endif
|
|
|
|
/*
|
|
* Program name.
|
|
*/
|
|
#ifndef HAVE_PROGRAM_INVOCATION_SHORT_NAME
|
|
# ifdef HAVE___PROGNAME
|
|
extern char *__progname;
|
|
# define program_invocation_short_name __progname
|
|
# else
|
|
# ifdef HAVE_GETEXECNAME
|
|
# define program_invocation_short_name \
|
|
prog_inv_sh_nm_from_file(getexecname(), 0)
|
|
# else
|
|
# define program_invocation_short_name \
|
|
prog_inv_sh_nm_from_file(__FILE__, 1)
|
|
# endif
|
|
static char prog_inv_sh_nm_buf[256];
|
|
static inline char *prog_inv_sh_nm_from_file(char *f, char stripext)
|
|
{
|
|
char *t;
|
|
|
|
if ((t = strrchr(f, '/')) != NULL)
|
|
t++;
|
|
else
|
|
t = f;
|
|
|
|
strncpy(prog_inv_sh_nm_buf, t, sizeof(prog_inv_sh_nm_buf) - 1);
|
|
prog_inv_sh_nm_buf[sizeof(prog_inv_sh_nm_buf) - 1] = '\0';
|
|
|
|
if (stripext && (t = strrchr(prog_inv_sh_nm_buf, '.')) != NULL)
|
|
*t = '\0';
|
|
|
|
return prog_inv_sh_nm_buf;
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
* Error printing.
|
|
*/
|
|
#ifndef HAVE_ERR_H
|
|
static inline void
|
|
errmsg(char doexit, int excode, char adderr, const char *fmt, ...)
|
|
{
|
|
fprintf(stderr, "%s: ", program_invocation_short_name);
|
|
if (fmt != NULL) {
|
|
va_list argp;
|
|
va_start(argp, fmt);
|
|
vfprintf(stderr, fmt, argp);
|
|
va_end(argp);
|
|
if (adderr)
|
|
fprintf(stderr, ": ");
|
|
}
|
|
if (adderr)
|
|
fprintf(stderr, "%m");
|
|
fprintf(stderr, "\n");
|
|
if (doexit)
|
|
exit(excode);
|
|
}
|
|
|
|
# ifndef HAVE_ERR
|
|
# define err(E, FMT...) errmsg(1, E, 1, FMT)
|
|
# endif
|
|
|
|
# ifndef HAVE_ERRX
|
|
# define errx(E, FMT...) errmsg(1, E, 0, FMT)
|
|
# endif
|
|
|
|
# ifndef HAVE_WARN
|
|
# define warn(FMT...) errmsg(0, 0, 1, FMT)
|
|
# endif
|
|
|
|
# ifndef HAVE_WARNX
|
|
# define warnx(FMT...) errmsg(0, 0, 0, FMT)
|
|
# endif
|
|
#endif /* !HAVE_ERR_H */
|
|
|
|
|
|
/*
|
|
* Constant strings for usage() functions.
|
|
*/
|
|
#define USAGE_HEADER _("\nUsage:\n")
|
|
#define USAGE_OPTIONS _("\nOptions:\n")
|
|
#define USAGE_SEPARATOR _("\n")
|
|
#define USAGE_HELP _(" -h, --help display this help and exit\n")
|
|
#define USAGE_VERSION _(" -V, --version output version information and exit\n")
|
|
#define USAGE_MAN_TAIL(_man) _("\nFor more details see %s.\n"), _man
|
|
|
|
#define PROCPS_NG_VERSION _("%s from %s\n"), program_invocation_short_name, PACKAGE_STRING
|
|
|
|
#endif /* PROCPS_NG_C_H */
|