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add SUN_LEN macro to sys/un.h under appropriate feature tests 

this is ugly and useless, but it seems to be the least-ugly way to
provide it...
This commit is contained in:
Rich Felker 2013-08-21 21:46:57 -04:00
parent 580b8d8c52
commit ecf4e24d81
1 changed files with 19 additions and 0 deletions
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19
include/sys/un.h
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@ -1,7 +1,17 @@
#ifndef _SYS_UN_H
#define _SYS_UN_H
#ifdef __cplusplus
extern "C" {
#endif
#include <features.h>
#define __NEED_sa_family_t
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define __NEED_size_t
#endif
#include <bits/alltypes.h>
struct sockaddr_un
@ -10,4 +20,13 @@ struct sockaddr_un
char sun_path[108];
};
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
size_t strlen(const char *);
#define SUN_LEN(s) (2+strlen((s)->sun_path))
#endif
#ifdef __cplusplus
}
#endif
#endif