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libio: Assume _LIBC, weak_alias, errno, (__set_)errno &c are defined

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Do not define _POSIX_SOURCE.
This commit is contained in:
Florian Weimer
2017-08-31 14:07:23 +02:00
parent 5129873a8e
commit 5f0704b66c
48 changed files with 166 additions and 751 deletions
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15
libio/oldiofdopen.c
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@ -32,10 +32,6 @@
#include "libioP.h"
#include <fcntl.h>
#ifndef _IO_fcntl
# define _IO_fcntl __fcntl
#endif
_IO_FILE *
attribute_compat_text_section
_IO_old_fdopen (int fd, const char *mode)
@ -69,11 +65,7 @@ _IO_old_fdopen (int fd, const char *mode)
}
if (mode[0] == '+' || (mode[0] == 'b' && mode[1] == '+'))
read_write &= _IO_IS_APPENDING;
#ifdef F_GETFL
fd_flags = _IO_fcntl (fd, F_GETFL);
#ifndef O_ACCMODE
#define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
#endif
fd_flags = __fcntl (fd, F_GETFL);
if (fd_flags == -1
|| ((fd_flags & O_ACCMODE) == O_RDONLY && !(read_write & _IO_NO_WRITES))
|| ((fd_flags & O_ACCMODE) == O_WRONLY && !(read_write & _IO_NO_READS)))
@ -97,12 +89,9 @@ _IO_old_fdopen (int fd, const char *mode)
*/
if ((posix_mode & O_APPEND) && !(fd_flags & O_APPEND))
{
#ifdef F_SETFL
if (_IO_fcntl (fd, F_SETFL, fd_flags | O_APPEND) == -1)
#endif
if (__fcntl (fd, F_SETFL, fd_flags | O_APPEND) == -1)
return NULL;
}
#endif
new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE));
if (new_f == NULL)