diff options
Diffstat (limited to 'include/c.h')
| -rw-r--r-- | include/c.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/c.h b/include/c.h index 815463881..0db8b2b59 100644 --- a/include/c.h +++ b/include/c.h @@ -6,6 +6,15 @@ #define UTIL_LINUX_C_H #include <limits.h> +#include <stdint.h> +#include <stdio.h> +#include <stdarg.h> +#include <string.h> +#include <errno.h> + +#ifdef HAVE_ERR_H +# include <err.h> +#endif /* * Compiler specific stuff @@ -95,6 +104,44 @@ #endif +#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, "%s", strerror(errno)); + 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 */ + + static inline __attribute__((const)) int is_power_of_2(unsigned long num) { return (num != 0 && ((num & (num - 1)) == 0)); |