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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-15 11:00:04 +08:00
Jeff Johnston 199359f062 2000-08-23 Werner Almesberger <Werner.Almesberger@epfl.ch>
* libc/stdlib/abort.c: changed description: uses "raise" instead of
        "getpid" and "kill"; added: uses "write" and "_exit".
        Also included unistd.h for "_exit" prototype.
        * libc/stdlib/system.c: included unistd.h for "execve" prototype,
        reent.h for "_fork_r" and "_wait_r" prototypes.
        (do_system): changed  extern char *environ[] to POSIX-friendly
        extern char **environ.
        * libc/stdlib/wctomb_r.c: included string.h for "strlen" and "strcmp"
        prototypes.
        * libc/stdlib/remove.c: included reent.h for "_unlink_r" prototype.
        * libc/reent/execr.c: included sys/wait.h for "wait" prototype.
        * libc/reent/fstatr.c: included sys/stat.h for "fstat" prototype.
        * libc/reent/openr.c: included fcntl.h for "open" prototype.
        * libc/reent/signalr.c: included signal.h for "kill" prototype,
        unistd.h for "getpid" prototype.
        * libc/reent/statr.c: included sys/stat.h for "stat" prototype.
        * libc/reent/timer.c: included sys/time.h for "gettimeofday" prototype.
        * libc/unix/getut.c (utmpname): removed local, incorrect "strdup"
        prototype.  Also included stdlib.h for "abort", string.h for
        "strdup" and "strncmp" prototypes.
        * libc/unix/getlogin.c: included string.h for "strncmp", "memset", and
        "strncpy", unistd.h for "read" and "close" prototypes.
        * libc/posix/execvp.c: included string.h for "strchr", "strlen", and
        "strcat" prototypes.
2000-08-24 18:51:09 +00:00

66 lines
1.3 KiB
C

/* Reentrant versions of open system call. */
#include <reent.h>
#include <unistd.h>
#include <fcntl.h>
#include <_syslist.h>
/* Some targets provides their own versions of this functions. Those
targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
#ifdef _REENT_ONLY
#ifndef REENTRANT_SYSCALLS_PROVIDED
#define REENTRANT_SYSCALLS_PROVIDED
#endif
#endif
#ifndef REENTRANT_SYSCALLS_PROVIDED
/* We use the errno variable used by the system dependent layer. */
#undef errno
extern int errno;
/*
FUNCTION
<<_open_r>>---Reentrant version of open
INDEX
_open_r
ANSI_SYNOPSIS
#include <reent.h>
int _open_r(struct _reent *<[ptr]>,
const char *<[file]>, int <[flags]>, int <[mode]>);
TRAD_SYNOPSIS
#include <reent.h>
int _open_r(<[ptr]>, <[file]>, <[flags]>, <[mode]>)
struct _reent *<[ptr]>;
char *<[file]>;
int <[flags]>;
int <[mode]>;
DESCRIPTION
This is a reentrant version of <<open>>. It
takes a pointer to the global data block, which holds
<<errno>>.
*/
int
_open_r (ptr, file, flags, mode)
struct _reent *ptr;
_CONST char *file;
int flags;
int mode;
{
int ret;
errno = 0;
if ((ret = _open (file, flags, mode)) == -1 && errno != 0)
ptr->_errno = errno;
return ret;
}
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */