diff options
| -rw-r--r-- | include/c.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/c.h b/include/c.h index 64c0138f2..e15a994d7 100644 --- a/include/c.h +++ b/include/c.h @@ -235,6 +235,24 @@ static inline int dirfd(DIR *d) #endif /* + * MAXHOSTNAMELEN replacement + */ +static inline size_t get_hostname_max(void) +{ + long len = sysconf(_SC_HOST_NAME_MAX); + + if (0 < len) + return len; + +#ifdef MAXHOSTNAMELEN + return MAXHOSTNAMELEN; +#elif HOST_NAME_MAX + return HOST_NAME_MAX; +#endif + return 64; +} + +/* * Constant strings for usage() functions. For more info see * Documentation/howto-usage-function.txt and sys-utils/arch.c */ |