commit 0589777a33a08b88682e31cfbc008889b3f258d0
author Yongqin Liu <yongqin.liu@linaro.org> Wed Oct 29 14:47:47 2014 +0800
committer Yongqin Liu <yongqin.liu@linaro.org> Thu Oct 30 10:59:24 2014 +0800
tree c3bc078a3d157403219e897fe24da707f4e05b74
parent e23f564b52fed0dce661cf6db25cf3a89bd66f18

limits.h: add define for HOST_NAME_MAX

according to the rules defined here:
    http://pubs.opengroup.org/onlinepubs/009695399/basedefs/limits.h.html
add the definition for HOST_NAME_MAX to limits.h file,
and set the default value to _POSIX_HOST_NAME_MAX as 255

Change-Id: Iddd5c6c569f4e0a14994c7a7c54985f3e7809fc4
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>

libc/include/limits.h

diff --git a/libc/include/limits.h b/libc/include/limits.h
index 69df082..6ae629b 100644
--- a/libc/include/limits.h
+++ b/libc/include/limits.h
@@ -97,4 +97,5 @@
 /* POSIX says these belong in <unistd.h> but BSD has some in <limits.h>. */
 #include <machine/posix_limits.h>
 
+#define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
 #endif /* !_LIMITS_H_ */

libc/include/machine/posix_limits.h

diff --git a/libc/include/machine/posix_limits.h b/libc/include/machine/posix_limits.h
index f906e3b..f092731 100644
--- a/libc/include/machine/posix_limits.h
+++ b/libc/include/machine/posix_limits.h
@@ -37,6 +37,7 @@
 #define _POSIX_CHOWN_RESTRICTED     1  /* yes, chown requires appropriate privileges */
 #define _POSIX_FSYNC                1  /* fdatasync() supported */
 #define _POSIX_JOB_CONTROL          1  /* job control is a Linux feature */
+#define _POSIX_HOST_NAME_MAX        255
 #define _POSIX_LINK_MAX             8
 #define _POSIX_LOGIN_NAME_MAX       9  /* includes trailing NUL */
 #define _POSIX_MAPPED_FILES         1  /* mmap-ed files supported */