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support _BSD_SOURCE feature test macro

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patch by Isaac Dunham. matched closely (maybe not exact) to glibc's
idea of what _BSD_SOURCE should make visible.
This commit is contained in:
Rich Felker
2012-05-22 21:52:08 -04:00
parent 7b5467cbae
commit 419ae6d5c9
22 changed files with 126 additions and 41 deletions
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20
include/unistd.h
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@@ -16,6 +16,12 @@ extern "C" {
#define SEEK_CUR 1
#define SEEK_END 2
#if defined(_BSD_SOURCE) && !defined(L_SET)
#define L_SET SEEK_SET
#define L_INCR SEEK_CUR
#define L_XTND SEEK_END
#endif
#undef NULL
#ifdef __cplusplus
#define NULL 0
@@ -63,10 +69,13 @@ int rmdir(const char *);
int truncate(const char *, off_t);
int ftruncate(int, off_t);
#ifndef F_OK
#define F_OK 0
#define R_OK 4
#define W_OK 2
#define X_OK 1
#endif
int access(const char *, int);
int faccessat(int, const char *, int, int);
@@ -127,10 +136,12 @@ long fpathconf(int, int);
long sysconf(int);
size_t confstr(int, char *, size_t);
#ifndef F_ULOCK
#define F_ULOCK 0
#define F_LOCK 1
#define F_TLOCK 2
#define F_TEST 3
#endif
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
int lockf(int, int, off_t);
@@ -143,10 +154,9 @@ int nice(int);
void sync(void);
#endif
#ifdef _GNU_SOURCE
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
int brk(void *);
void *sbrk(intptr_t);
pid_t forkall(void);
pid_t vfork(void);
int vhangup(void);
int chroot(const char *);
@@ -155,6 +165,11 @@ int sethostname(const char *, size_t);
int usleep(unsigned);
unsigned ualarm(unsigned, unsigned);
int setgroups(size_t, const gid_t []);
char *getpass(const char *);
#endif
#ifdef _GNU_SOURCE
pid_t forkall(void);
int setresuid(uid_t, uid_t, uid_t);
int setresgid(gid_t, gid_t, gid_t);
int getresuid(uid_t *, uid_t *, uid_t *);
@@ -166,7 +181,6 @@ int getdtablesize(void);
void setusershell(void);
void endusershell(void);
char *getusershell(void);
char *getpass(const char *);
#endif
#ifdef _LARGEFILE64_SOURCE