| From b6a027fe4da6f66552b533f1314e5005b16c5455 Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Wed, 29 Mar 2017 23:52:36 -0700 |
| Subject: [PATCH 7/8] add error() API when error.h is not on platform |
| |
| sign-off-by: Khem Raj <raj.khem@gmail.com> |
| --- |
| sysdep.c | 24 ++++++++++++++++++++++++ |
| sysdep.h | 2 ++ |
| 2 files changed, 26 insertions(+) |
| |
| diff --git a/sysdep.c b/sysdep.c |
| index d8f181d..2518ec1 100644 |
| --- a/sysdep.c |
| +++ b/sysdep.c |
| @@ -17,6 +17,7 @@ |
| GNU General Public License for more details. |
| */ |
| |
| +#define _GNU_SOURCE |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <stdlib.h> |
| @@ -794,3 +795,26 @@ int setenv(const char *name, const char *value, int overwrite) |
| return ret; |
| } |
| #endif |
| + |
| +#ifndef _ERROR_H_ |
| +#define _ERROR_H_ |
| +#include <stdarg.h> |
| +#include <stdio.h> |
| +#include <errno.h> |
| + |
| +void error(int status, int errnum, const char* format, ...) |
| +{ |
| + va_list ap; |
| + |
| + fflush(stdout); |
| + fprintf(stderr, "%s: ", program_invocation_name); |
| + va_start(ap, format); |
| + vfprintf(stderr, format, ap); |
| + va_end(ap); |
| + if (errnum) |
| + fprintf(stderr, ":%d", errnum); |
| + if (status) |
| + exit(status); |
| +} |
| +#endif /* _ERROR_H_ */ |
| + |
| diff --git a/sysdep.h b/sysdep.h |
| index 0122b95..4e60064 100644 |
| --- a/sysdep.h |
| +++ b/sysdep.h |
| @@ -44,6 +44,8 @@ int tun_get_hwaddr(int fd, char *dev, uint8_t *hwaddr); |
| #if defined(__linux__) |
| #if defined(__GLIBC__) |
| #include <error.h> |
| +#else |
| +void error(int status, int errnum, const char* format, ...); |
| #endif |
| #define HAVE_VASPRINTF 1 |
| #define HAVE_ASPRINTF 1 |
| -- |
| 2.12.1 |
| |