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1998-09-18 17:41  Ulrich Drepper  <drepper@cygnus.com>

	* libio/fileops.c (_IO_new_file_underflow): Before allocating
	buffer make sure the pushback buffer is destroyed.
	(_IO_new_file_seekoff): Likewise.
	If mode==0 quit early with the result.
	Clear OEF flag after successful fseek.
	* libio/libio.h (_IO_FILE_complete): Add _IO_save_ptr.
	* libio/ftello.c (ftello): Add offset from original buffer if
	stream has pushed back characters.
	* libio/ftello64.c (ftello64): Likewise.
	* libio/iofgetpos.c (_IO_fgetpos): Likewise.
	* libio/iofgetpos64.c (_IO_fgetpos64): Likewise.
	* libio/ioftell.c (_IO_ftell): Likewise.
	* libio/genops.c (_IO_switch_to_main_get_area): Swap _IO_read_ptr
	and _IO_save_ptr.
	(_IO_switch_to_backup_area): Save _IO_read_ptr in _IO_save_ptr.
	(_IO_default_pbackfail): Only stored push back character in original
	buffer if it is the same as the one in the file at this position.
	* libio/iofclose.c: Free backup buffer if one is available.
	* libio/ioseekoff.c (_IO_seekoff): Only remove pushback buffer if
	mode!=0.

	* strdlib/strtol.c (strtol): Handle 0x... string for base!=0 correctly.

	* time/strftime.c [_LIBC] (ampm): Use tp->tm_hour not hour12.

1998-09-18  Mark Kettenis  <kettenis@phys.uva.nl>

	* login/programs/pt_chown.c (more_help): Correct message that
	describes the purpose of the program.

	* login/openpty.c: Do not include pty-private.h.
	(pts_name): New function.  Return name of slave pseudo terminal in
	an allocated buffer if necessary.
	(openpty): Use pts_name to get name of the slave end of the pseudo
	terminal pair.

	* sysdeps/unix/grantpt.c (grantpt): Free buffer allocated by
	pts_name before return.

1998-09-18 11:15  Ulrich Drepper  <drepper@cygnus.com>

	* math/math.h: Define __NO_MATH_INLINES if __STRICT_ANSI__.
This commit is contained in:
Ulrich Drepper 1998-09-18 17:59:03 +00:00
parent 88263bc9ac
commit 00bc5db059
17 changed files with 237 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
ChangeLog
View File

@ -1,3 +1,48 @@
1998-09-18 17:41 Ulrich Drepper <drepper@cygnus.com>
* libio/fileops.c (_IO_new_file_underflow): Before allocating
buffer make sure the pushback buffer is destroyed.
(_IO_new_file_seekoff): Likewise.
If mode==0 quit early with the result.
Clear OEF flag after successful fseek.
* libio/libio.h (_IO_FILE_complete): Add _IO_save_ptr.
* libio/ftello.c (ftello): Add offset from original buffer if
stream has pushed back characters.
* libio/ftello64.c (ftello64): Likewise.
* libio/iofgetpos.c (_IO_fgetpos): Likewise.
* libio/iofgetpos64.c (_IO_fgetpos64): Likewise.
* libio/ioftell.c (_IO_ftell): Likewise.
* libio/genops.c (_IO_switch_to_main_get_area): Swap _IO_read_ptr
and _IO_save_ptr.
(_IO_switch_to_backup_area): Save _IO_read_ptr in _IO_save_ptr.
(_IO_default_pbackfail): Only stored push back character in original
buffer if it is the same as the one in the file at this position.
* libio/iofclose.c: Free backup buffer if one is available.
* libio/ioseekoff.c (_IO_seekoff): Only remove pushback buffer if
mode!=0.
* strdlib/strtol.c (strtol): Handle 0x... string for base!=0 correctly.
* time/strftime.c [_LIBC] (ampm): Use tp->tm_hour not hour12.
1998-09-18 Mark Kettenis <kettenis@phys.uva.nl>
* login/programs/pt_chown.c (more_help): Correct message that
describes the purpose of the program.
* login/openpty.c: Do not include pty-private.h.
(pts_name): New function. Return name of slave pseudo terminal in
an allocated buffer if necessary.
(openpty): Use pts_name to get name of the slave end of the pseudo
terminal pair.
* sysdeps/unix/grantpt.c (grantpt): Free buffer allocated by
pts_name before return.
1998-09-18 11:15 Ulrich Drepper <drepper@cygnus.com>
* math/math.h: Define __NO_MATH_INLINES if __STRICT_ANSI__.
1998-09-18 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* login/openpty.c: Include pty-private.h instead of

30
libio/fileops.c
View File

@ -34,6 +34,9 @@
#include <sys/stat.h>
#include <string.h>
#include <errno.h>
#ifdef __STDC__
#include <stdlib.h>
#endif
#ifndef errno
extern int errno;
#endif
@ -341,7 +344,15 @@ _IO_new_file_underflow (fp)
return *(unsigned char *) fp->_IO_read_ptr;
if (fp->_IO_buf_base == NULL)
_IO_doallocbuf (fp);
{
/* Maybe we already have a push back pointer. */
if (fp->_IO_save_base != NULL)
{
free (fp->_IO_save_base);
fp->_flags &= ~_IO_IN_BACKUP;
}
_IO_doallocbuf (fp);
}
/* Flush all line buffered files before reading. */
/* FIXME This can/should be moved to genops ?? */
@ -493,6 +504,12 @@ _IO_new_file_seekoff (fp, offset, dir, mode)
if (fp->_IO_buf_base == NULL)
{
/* It could be that we already have a pushback buffer. */
if (fp->_IO_read_base != NULL)
{
free (fp->_IO_read_base);
fp->_flags &= ~_IO_IN_BACKUP;
}
_IO_doallocbuf (fp);
_IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
_IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base, fp->_IO_buf_base);
@ -526,6 +543,10 @@ _IO_new_file_seekoff (fp, offset, dir, mode)
}
/* At this point, dir==_IO_seek_set. */
/* If we are only interested in the current position we've found it now. */
if (mode == 0)
return offset;
/* If destination is within current buffer, optimize: */
if (fp->_offset != _IO_pos_BAD && fp->_IO_read_base != NULL
&& !_IO_in_backup (fp))
@ -544,7 +565,10 @@ _IO_new_file_seekoff (fp, offset, dir, mode)
_IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base + rel_offset,
fp->_IO_read_end);
_IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
return offset;
{
_IO_mask_flags (fp, 0, _IO_EOF_SEEN);
return offset;
}
}
#ifdef TODO
/* If we have streammarkers, seek forward by reading ahead. */
@ -554,6 +578,7 @@ _IO_new_file_seekoff (fp, offset, dir, mode)
- (fp->_IO_read_ptr - fp->_IO_read_base);
if (ignore (to_skip) != to_skip)
goto dumb;
_IO_mask_flags (fp, 0, _IO_EOF_SEEN);
return offset;
}
#endif
@ -564,6 +589,7 @@ _IO_new_file_seekoff (fp, offset, dir, mode)
if (!_IO_in_backup (fp))
_IO_switch_to_backup_area (fp);
gbump (fp->_IO_read_end + rel_offset - fp->_IO_read_ptr);
_IO_mask_flags (fp, 0, _IO_EOF_SEEN);
return offset;
}
#endif

2
libio/ftello.c
View File

@ -37,6 +37,8 @@ ftello (fp)
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
if (_IO_in_backup (fp))
pos -= fp->_IO_save_end - fp->_IO_save_base;
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
if (pos == _IO_pos_BAD)

2
libio/ftello64.c
View File

@ -38,6 +38,8 @@ ftello64 (fp)
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
if (_IO_in_backup (fp))
pos -= fp->_IO_save_end - fp->_IO_save_base;
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
if (pos == _IO_pos_BAD)

21
libio/genops.c
View File

@ -94,8 +94,10 @@ _IO_switch_to_main_get_area (fp)
tmp = fp->_IO_read_base;
fp->_IO_read_base = fp->_IO_save_base;
fp->_IO_save_base = tmp;
fp->_IO_read_ptr = fp->_IO_read_base;
/* Swap _IO_read_base and _IO_save_ptr. */
tmp = fp->_IO_read_ptr;
fp->_IO_read_ptr = fp->_IO_save_ptr;
fp->_IO_save_ptr = tmp;
}
/* Switch current get area from main get area to (end of) backup area. */
@ -114,7 +116,8 @@ _IO_switch_to_backup_area (fp)
tmp = fp->_IO_read_base;
fp->_IO_read_base = fp->_IO_save_base;
fp->_IO_save_base = tmp;
/* read _IO_read_ptr. */
fp->_IO_save_ptr = fp->_IO_read_ptr;
fp->_IO_read_ptr = fp->_IO_read_end;
}
@ -868,7 +871,10 @@ _IO_default_pbackfail (fp, c)
_IO_FILE *fp;
int c;
{
if (fp->_IO_read_ptr <= fp->_IO_read_base)
if (fp->_IO_read_ptr > fp->_IO_read_base && !_IO_in_backup (fp)
&& fp->_IO_read_ptr[-1] == c)
--fp->_IO_read_ptr;
else
{
/* Need to handle a filebuf in write mode (switch to read mode). FIXME!*/
if (_IO_have_backup (fp) && !_IO_in_backup (fp))
@ -904,11 +910,10 @@ _IO_default_pbackfail (fp, c)
new_buf + new_size);
fp->_IO_backup_base = fp->_IO_read_ptr;
}
*--fp->_IO_read_ptr = c;
}
--fp->_IO_read_ptr;
if (c != EOF && *fp->_IO_read_ptr != c)
*fp->_IO_read_ptr = c;
return (unsigned char) *fp->_IO_read_ptr;
return (unsigned char) c;
}
_IO_fpos64_t

2
libio/iofclose.c
View File

@ -45,6 +45,8 @@ _IO_new_fclose (fp)
_IO_FINISH (fp);
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
if (_IO_have_backup (fp))
_IO_free_backup_area (fp);
if (fp != _IO_stdin && fp != _IO_stdout && fp != _IO_stderr)
{
fp->_IO_file_flags = 0;

2
libio/iofgetpos.c
View File

@ -36,6 +36,8 @@ _IO_fgetpos (fp, posp)
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
if (_IO_in_backup (fp))
pos -= fp->_IO_save_end - fp->_IO_save_base;
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
if (pos == _IO_pos_BAD)

2
libio/iofgetpos64.c
View File

@ -37,6 +37,8 @@ _IO_fgetpos64 (fp, posp)
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
if (_IO_in_backup (fp))
pos -= fp->_IO_save_end - fp->_IO_save_base;
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
if (pos == _IO_pos_BAD)

2
libio/ioftell.c
View File

@ -36,6 +36,8 @@ _IO_ftell (fp)
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
if (_IO_in_backup (fp))
pos -= fp->_IO_save_end - fp->_IO_save_base;
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
if (pos == _IO_pos_BAD)

3
libio/ioseekoff.c
View File

@ -41,12 +41,13 @@ _IO_seekoff (fp, offset, dir, mode)
_IO_flockfile (fp);
if (_IO_have_backup (fp))
if (mode != 0 && _IO_have_backup (fp))
{
if (dir == _IO_seek_cur && _IO_in_backup (fp))
offset -= fp->_IO_read_end - fp->_IO_read_ptr;
_IO_free_backup_area (fp);
}
retval = _IO_SEEKOFF (fp, offset, dir, mode);
_IO_funlockfile (fp);

4
libio/libio.h
View File

@ -229,7 +229,9 @@ struct _IO_FILE_complete
#endif
#if defined _G_IO_IO_FILE_VERSION && _G_IO_IO_FILE_VERSION == 0x20001
_IO_off64_t _offset;
int _unused2[16]; /* Make sure we don't get into trouble again. */
char *_IO_save_ptr;
/* Make sure we don't get into trouble again. */
char _unused2[16 * sizeof (int) - sizeof (char *)];
#endif
};

129
login/openpty.c
View File

@ -17,7 +17,9 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <pty.h>
#include <stdlib.h>
#include <string.h>
@ -25,49 +27,112 @@
#include <unistd.h>
#include <sys/types.h>
#include "pty-private.h"
int
openpty (pmast, pslave, pname, tio, wins)
int *pmast;
int *pslave;
char *pname;
struct termios *tio;
struct winsize *wins;
/* Return the result of ptsname_r in the buffer pointed to by PTS,
which should be of length BUF_LEN. If it is too long to fit in
this buffer, a sufficiently long buffer is allocated using malloc,
and returned in PTS. 0 is returned upon success, -1 otherwise. */
static int
pts_name (int fd, char **pts, size_t buf_len)
{
int pfd, tfd;
char name[PTYNAMELEN];
int rv;
char *buf = *pts;
pfd = getpt ();
if (pfd == -1)
for (;;)
{
char *new_buf;
if (buf_len)
{
rv = ptsname_r (fd, buf, buf_len);
if (rv != 0 || memchr (buf, '\0', buf_len))
/* We either got an error, or we succeeded and the
returned name fit in the buffer. */
break;
/* Try again with a longer buffer. */
buf_len += buf_len; /* Double it */
}
else
/* No initial buffer; start out by mallocing one. */
buf_len = 128; /* First time guess. */
if (buf != *pts)
/* We've already malloced another buffer at least once. */
new_buf = realloc (buf, buf_len);
else
new_buf = malloc (buf_len);
if (! new_buf)
{
rv = -1;
__set_errno (ENOMEM);
break;
}
buf = new_buf;
}
if (rv == 0)
*pts = buf; /* Return buffer to the user. */
else if (buf != *pts)
free (buf); /* Free what we malloced when returning an error. */
return rv;
}
/* Create pseudo tty master slave pair and set terminal attributes
according to TERMP and WINP. Return handles for both ends in
AMASTER and ASLAVE, and return the name of the slave end in NAME. */
int
openpty (int *amaster, int *aslave, char *name, struct termios *termp,
struct winsize *winp)
{
#ifdef PATH_MAX
char _buf[PATH_MAX];
#else
char _buf[512];
#endif
char *buf = _buf;
int master, slave;
master = getpt ();
if (master == -1)
return -1;
if (grantpt (pfd))
goto bail;
if (grantpt (master))
goto fail;
if (unlockpt (pfd))
goto bail;
if (unlockpt (master))
goto fail;
if (ptsname_r (pfd, name, PTYNAMELEN) != 0)
goto bail;
if (pts_name (master, &buf, sizeof (_buf)))
goto fail;
tfd = open (name, O_RDWR);
if (tfd == -1)
goto bail;
slave = open (buf, O_RDWR);
if (slave == -1)
{
if (buf != _buf)
free (buf);
goto fail;
}
/* XXX Should we ignore errors here? */
if(tio)
tcsetattr (tfd, TCSAFLUSH, tio);
if (wins)
ioctl (tfd, TIOCSWINSZ, wins);
if(termp)
tcsetattr (slave, TCSAFLUSH, termp);
if (winp)
ioctl (slave, TIOCSWINSZ, winp);
*pmast = pfd;
*pslave = tfd;
if (pname != NULL)
strcpy (pname, name);
*amaster = master;
*aslave = slave;
if (name != NULL)
strcpy (name, buf);
if (buf != _buf)
free (buf);
return 0;
bail:
close (pfd);
fail:
close (master);
return -1;
}

13
login/programs/pt_chown.c
View File

@ -67,15 +67,16 @@ static char *
more_help (int key, const char *text, void *input)
{
char *cp;
switch (key)
{
case ARGP_KEY_HELP_PRE_DOC:
asprintf (&cp, gettext ("\
Set the owner, group and access permission of the terminal passed on\
file descriptor `%d'. This is the helper program for the `grantpt'\
function. It is not intended to be run directly from the command\
line.\n"),
Set the owner, group and access permission of the slave pseudo\
terminal corresponding to the master pseudo terminal passed on\
file descriptor `%d'. This is the helper program for the\
`grantpt' function. It is not intended to be run directly from\
the command line.\n"),
PTY_FILENO);
return cp;
case ARGP_KEY_HELP_EXTRA:
@ -119,7 +120,7 @@ main (int argc, char *argv[])
program_invocation_short_name);
exit (EXIT_FAILURE);
}
/* Check if we are properly installed. */
if (geteuid () != 0)
error (FAIL_EXEC, 0, gettext ("needs to be installed setuid `root'"));

7
math/math.h
View File

@ -312,6 +312,13 @@ extern int matherr __P ((struct exception *__exc));
#endif
/* When compiling in strict ISO C compatible mode we must not use the
inline functions since they, among other things, do not set the
`errno' variable correctly. */
#if defined __STRICT_ANSI__ && !defined __NO_MATH_INLINES
# define __NO_MATH_INLINES 1
#endif
/* Get machine-dependent inline versions (if there are any). */
#ifdef __USE_EXTERN_INLINES
# include <bits/mathinline.h>

2
stdlib/strtol.c
View File

@ -306,7 +306,7 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
/* Recognize number prefix and if BASE is zero, figure it out ourselves. */
if (*s == L_('0'))
{
if (TOUPPER (s[1]) == L_('X'))
if ((base == 0 || base == 16) && TOUPPER (s[1]) == L_('X'))
{
s += 2;
base = 16;

34
sysdeps/unix/grantpt.c
View File

@ -90,6 +90,7 @@ pts_name (int fd, char **pts, size_t buf_len)
int
grantpt (int fd)
{
int retval = -1;
#ifdef PATH_MAX
char _buf[PATH_MAX];
#else
@ -107,9 +108,9 @@ grantpt (int fd)
if (pts_name (fd, &buf, sizeof (_buf)))
return -1;
if (__stat (buf, &st) < 0)
return -1;
goto cleanup;
/* Make sure that we own the device. */
uid = __getuid ();
@ -143,14 +144,15 @@ grantpt (int fd)
goto helper;
}
return 0;
retval = 0;
goto cleanup;
/* We have to use the helper program. */
helper:
pid = __fork ();
if (pid == -1)
return -1;
goto cleanup;
else if (pid == 0)
{
/* Disable core dumps. */
@ -168,36 +170,38 @@ grantpt (int fd)
else
{
int w;
if (__waitpid (pid, &w, 0) == -1)
return -1;
goto cleanup;
if (!WIFEXITED (w))
{
__set_errno (ENOEXEC);
return -1;
}
__set_errno (ENOEXEC);
else
switch (WEXITSTATUS(w))
{
case 0:
retval = 0;
break;
case FAIL_EBADF:
__set_errno (EBADF);
return -1;
break;
case FAIL_EINVAL:
__set_errno (EINVAL);
return -1;
break;
case FAIL_EACCES:
__set_errno (EACCES);
return -1;
break;
case FAIL_EXEC:
__set_errno (ENOEXEC);
return -1;
break;
default:
assert(! "getpt: internal error: invalid exit code from pt_chown");
}
}
return 0;
cleanup:
if (buf != _buf)
free (buf);
return retval;
}

5
time/strftime.c
View File

@ -427,7 +427,7 @@ my_strftime (s, maxsize, format, tp)
# define f_wkday _NL_CURRENT (LC_TIME, DAY_1 + tp->tm_wday)
# define a_month _NL_CURRENT (LC_TIME, ABMON_1 + tp->tm_mon)
# define f_month _NL_CURRENT (LC_TIME, MON_1 + tp->tm_mon)
# define ampm _NL_CURRENT (LC_TIME, hour12 > 11 ? PM_STR : AM_STR)
# define ampm _NL_CURRENT (LC_TIME, tp->tm_hour > 11 ? PM_STR : AM_STR)
# define aw_len strlen (a_wkday)
# define am_len strlen (a_month)
@ -475,7 +475,8 @@ my_strftime (s, maxsize, format, tp)
if (hour12 > 12)
hour12 -= 12;
else
if (hour12 == 0) hour12 = 12;
if (hour12 == 0)
hour12 = 12;
for (f = format; *f != '\0'; ++f)
{