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Imported from ../bash-2.02.tar.gz.

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This commit is contained in:
Jari Aalto 1998-04-17 19:52:44 +00:00
commit cce855bc5b
323 changed files with 33916 additions and 12321 deletions
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37
input.c
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@ -21,7 +21,9 @@
#include "config.h"
#include "bashtypes.h"
#include <sys/file.h>
#ifndef _MINIX
# include <sys/file.h>
#endif
#include "filecntl.h"
#include "posixstat.h"
#include <stdio.h>
@ -96,8 +98,6 @@ ungetc_with_restart (c, stream)
# define SEEK_CUR 1
#endif /* !SEEK_CUR */
void free_buffered_stream ();
extern int return_EOF ();
extern int interactive_shell;
@ -109,7 +109,7 @@ int bash_input_fd_changed;
way around. This is needed so that buffers are managed properly
in constructs like 3<&4. buffers[x]->b_fd == x -- that is how the
correspondence is maintained. */
BUFFERED_STREAM **buffers = (BUFFERED_STREAM **)NULL;
static BUFFERED_STREAM **buffers = (BUFFERED_STREAM **)NULL;
static int nbuffers;
#define max(a, b) (((a) > (b)) ? (a) : (b))
@ -140,7 +140,7 @@ static BUFFERED_STREAM *
make_buffered_stream (fd, buffer, bufsize)
int fd;
char *buffer;
int bufsize;
size_t bufsize;
{
BUFFERED_STREAM *bp;
@ -269,7 +269,11 @@ duplicate_buffered_stream (fd1, fd2)
}
/* Return 1 if a seek on FD will succeed. */
#define fd_is_seekable(fd) (lseek ((fd), 0L, SEEK_CUR) >= 0)
#ifndef __CYGWIN32__
# define fd_is_seekable(fd) (lseek ((fd), 0L, SEEK_CUR) >= 0)
#else
# define fd_is_seekable(fd) 0
#endif /* __CYGWIN32__ */
/* Take FD, a file descriptor, and create and return a buffered stream
corresponding to it. If something is wrong and the file descriptor
@ -279,7 +283,7 @@ fd_to_buffered_stream (fd)
int fd;
{
char *buffer;
int size;
size_t size;
struct stat sb;
if (fstat (fd, &sb) < 0)
@ -291,8 +295,9 @@ fd_to_buffered_stream (fd)
if (fd_is_seekable (fd) == 0)
size = 1;
else
size = (sb.st_size > MAX_INPUT_BUFFER_SIZE) ? MAX_INPUT_BUFFER_SIZE
: sb.st_size;
size = (size_t)((sb.st_size > MAX_INPUT_BUFFER_SIZE)
? MAX_INPUT_BUFFER_SIZE
: sb.st_size);
buffer = (char *)xmalloc (size);
@ -354,6 +359,20 @@ close_buffered_fd (fd)
return (close_buffered_stream (buffers[fd]));
}
/* Make the BUFFERED_STREAM associcated with buffers[FD] be BP, and return
the old BUFFERED_STREAM. */
BUFFERED_STREAM *
set_buffered_stream (fd, bp)
int fd;
BUFFERED_STREAM *bp;
{
BUFFERED_STREAM *ret;
ret = buffers[fd];
buffers[fd] = bp;
return ret;
}
/* Read a buffer full of characters from BP, a buffered stream. */
static int
b_fill_buffer (bp)