pathmax pipe2 pselect pthread_sigmask
qcopy-acl readlink readlinkat regex
sig2str sigdescr_np socklen stat-time std-gnu11 stdbool stdckdint stddef stdio
- stpcpy stpncpy strnlen strnlen strtoimax symlink sys_stat sys_time
+ stpcpy strnlen strnlen strtoimax symlink sys_stat sys_time
tempname time-h time_r time_rz timegm timer-time timespec-add timespec-sub
update-copyright unlocked-io utimensat
vla warnings year2038
AC_TYPE_PID_T
AC_HEADER_STDBOOL
-AC_CHECK_FUNCS([getpagesize stpcpy stpncpy])
-AC_CHECK_DECLS([stpcpy, stpncpy])
+AC_CHECK_FUNCS([getpagesize stpcpy])
+AC_CHECK_DECLS([stpcpy])
AC_CHECK_FUNC([process_vm_readv],
[AC_CHECK_FUNC([process_vm_writev],
[AC_CHECK_DECL([process_vm_readv],
#define stpcpy rpl_stpcpy
#endif /* !defined HAVE_STPCPY || !defined HAVE_DECL_STPCPY */
-#if !defined HAVE_STPNCPY || !defined HAVE_DECL_STPNCPY
-
-/* Copy no more than N bytes of SRC to DST, returning a pointer past
- the last non-NUL byte written into DST. */
-
-static char *
-rpl_stpncpy (char *dest, const char *src, size_t n)
-{
- char c, *s;
- size_t n4;
-
- s = dest;
-
- if (n >= 4)
- {
- n4 = n >> 2;
-
- for (;;)
- {
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- if (--n4 == 0)
- goto last_chars;
- }
- n -= dest - s;
- goto zero_fill;
- }
-
- last_chars:
- n &= 3;
- if (n == 0)
- return dest;
-
- for (;;)
- {
- c = *src++;
- --n;
- *dest++ = c;
- if (c == '\0')
- break;
- if (n == 0)
- return dest;
- }
-
- zero_fill:
- while (n-- > 0)
- dest[n] = '\0';
-
- return dest - 1;
-}
-
-#define stpncpy rpl_stpncpy
-#endif /* !defined HAVE_STPNCPY || !defined HAVE_DECL_STPNCPY */
-
\f
/* Executable reading functions.
else
{
/* If name is not absolute, then make it relative to TRACEE's
- cwd. Use stpcpy, as sprintf is not reentrant. */
+ cwd. Do not use sprintf at it is not reentrant and it
+ mishandles results longer than INT_MAX. */
if (name[0] && name[0] != '/')
{
- /* Clear `buffer'. */
+ /* Clear both buffers. */
memset (buffer, 0, sizeof buffer);
- memset (buffer1, 0, sizeof buffer);
+ memset (buffer1, 0, sizeof buffer1);
/* Copy over /proc, the PID, and /cwd/. */
rewrite = stpcpy (buffer, "/proc/");
rewrite = buffer1 + link_size;
remaining = buffer1 + sizeof buffer1 - rewrite - 1;
- rewrite = stpncpy (rewrite, name, remaining);
+ memcpy (rewrite, name, strnlen (name, remaining));
/* Replace name with buffer1. */
#ifndef REENTRANT
# stddef \
# stdio \
# stpcpy \
-# stpncpy \
# strnlen \
# strtoimax \
# symlink \
GL_COND_OBJ_STDIO_READ_CONDITION = @GL_COND_OBJ_STDIO_READ_CONDITION@
GL_COND_OBJ_STDIO_WRITE_CONDITION = @GL_COND_OBJ_STDIO_WRITE_CONDITION@
GL_COND_OBJ_STPCPY_CONDITION = @GL_COND_OBJ_STPCPY_CONDITION@
-GL_COND_OBJ_STPNCPY_CONDITION = @GL_COND_OBJ_STPNCPY_CONDITION@
GL_COND_OBJ_STRNLEN_CONDITION = @GL_COND_OBJ_STRNLEN_CONDITION@
GL_COND_OBJ_STRTOIMAX_CONDITION = @GL_COND_OBJ_STRTOIMAX_CONDITION@
GL_COND_OBJ_STRTOLL_CONDITION = @GL_COND_OBJ_STRTOLL_CONDITION@
endif
## end gnulib module stpcpy
-## begin gnulib module stpncpy
-ifeq (,$(OMIT_GNULIB_MODULE_stpncpy))
-
-ifneq (,$(GL_COND_OBJ_STPNCPY_CONDITION))
-libgnu_a_SOURCES += stpncpy.c
-endif
-
-endif
-## end gnulib module stpncpy
-
## begin gnulib module string
ifeq (,$(OMIT_GNULIB_MODULE_string))
+++ /dev/null
-/* Copyright (C) 1993, 1995-1997, 2002-2003, 2005-2007, 2009-2023 Free Software
- * Foundation, Inc.
-
- NOTE: The canonical source of this file is maintained with the GNU C Library.
- Bugs can be reported to bug-glibc@gnu.org.
-
- This file is free software: you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as
- published by the Free Software Foundation; either version 2.1 of the
- License, or (at your option) any later version.
-
- This file is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <https://www.gnu.org/licenses/>. */
-
-/* This is almost copied from strncpy.c, written by Torbjorn Granlund. */
-
-#include <config.h>
-
-/* Specification. */
-#include <string.h>
-
-#ifndef weak_alias
-# define __stpncpy stpncpy
-#endif
-
-/* Copy no more than N bytes of SRC to DST, returning a pointer past the
- last non-NUL byte written into DST. */
-char *
-(__stpncpy) (char *dest, const char *src, size_t n)
-{
- char c;
- char *s = dest;
-
- if (n >= 4)
- {
- size_t n4 = n >> 2;
-
- for (;;)
- {
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- c = *src++;
- *dest++ = c;
- if (c == '\0')
- break;
- if (--n4 == 0)
- goto last_chars;
- }
- n -= dest - s;
- goto zero_fill;
- }
-
- last_chars:
- n &= 3;
- if (n == 0)
- return dest;
-
- for (;;)
- {
- c = *src++;
- --n;
- *dest++ = c;
- if (c == '\0')
- break;
- if (n == 0)
- return dest;
- }
-
- zero_fill:
- while (n-- > 0)
- dest[n] = '\0';
-
- return dest - 1;
-}
-#ifdef weak_alias
-weak_alias (__stpncpy, stpncpy)
-#endif
gl_STDIO_H_EARLY
# Code from module stdlib:
# Code from module stpcpy:
- # Code from module stpncpy:
# Code from module string:
# Code from module strnlen:
# Code from module strtoimax:
gl_PREREQ_STPCPY
])
gl_STRING_MODULE_INDICATOR([stpcpy])
- gl_FUNC_STPNCPY
- gl_CONDITIONAL([GL_COND_OBJ_STPNCPY],
- [test $HAVE_STPNCPY = 0 || test $REPLACE_STPNCPY = 1])
- AM_COND_IF([GL_COND_OBJ_STPNCPY], [
- gl_PREREQ_STPNCPY
- ])
- gl_STRING_MODULE_INDICATOR([stpncpy])
gl_STRING_H
gl_STRING_H_REQUIRE_DEFAULTS
AC_PROG_MKDIR_P
lib/stdio.in.h
lib/stdlib.in.h
lib/stpcpy.c
- lib/stpncpy.c
lib/str-two-way.h
lib/strftime.h
lib/string.in.h
m4/stdio_h.m4
m4/stdlib_h.m4
m4/stpcpy.m4
- m4/stpncpy.m4
m4/string_h.m4
m4/strnlen.m4
m4/strtoimax.m4
+++ /dev/null
-# stpncpy.m4 serial 22
-dnl Copyright (C) 2002-2003, 2005-2007, 2009-2023 Free Software Foundation,
-dnl Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_STPNCPY],
-[
- AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
-
- dnl Persuade glibc <string.h> to declare stpncpy().
- AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-
- dnl The stpncpy() declaration in lib/string.in.h uses 'restrict'.
- AC_REQUIRE([AC_C_RESTRICT])
-
- AC_REQUIRE([gl_STRING_H_DEFAULTS])
-
- dnl Both glibc and AIX (4.3.3, 5.1) have an stpncpy() function
- dnl declared in <string.h>. Its side effects are the same as those
- dnl of strncpy():
- dnl stpncpy (dest, src, n)
- dnl overwrites dest[0..n-1], min(strlen(src),n) bytes coming from src,
- dnl and the remaining bytes being NULs. However, the return value is
- dnl in glibc: dest + min(strlen(src),n)
- dnl in AIX: dest + max(0,n-1)
- dnl Only the glibc return value is useful in practice.
-
- AC_CHECK_DECLS_ONCE([stpncpy])
- gl_CHECK_FUNCS_ANDROID([stpncpy], [[#include <string.h>]])
- if test $ac_cv_func_stpncpy = yes; then
- AC_CACHE_CHECK([for working stpncpy], [gl_cv_func_stpncpy], [
- AC_RUN_IFELSE(
- [AC_LANG_SOURCE([[
-#include <stdlib.h>
-#include <string.h> /* for strcpy */
-/* The stpncpy prototype is missing in <string.h> on AIX 4. */
-#if !HAVE_DECL_STPNCPY
-extern
-# ifdef __cplusplus
-"C"
-# endif
-char *stpncpy (char *dest, const char *src, size_t n);
-#endif
-int main ()
-{
- int result = 0;
- const char *src = "Hello";
- char dest[10];
- /* AIX 4.3.3 and AIX 5.1 stpncpy() returns dest+1 here. */
- {
- strcpy (dest, "\377\377\377\377\377\377");
- if (stpncpy (dest, src, 2) != dest + 2)
- result |= 1;
- }
- /* AIX 4.3.3 and AIX 5.1 stpncpy() returns dest+4 here. */
- {
- strcpy (dest, "\377\377\377\377\377\377");
- if (stpncpy (dest, src, 5) != dest + 5)
- result |= 2;
- }
- /* AIX 4.3.3 and AIX 5.1 stpncpy() returns dest+6 here. */
- {
- strcpy (dest, "\377\377\377\377\377\377");
- if (stpncpy (dest, src, 7) != dest + 5)
- result |= 4;
- }
- return result;
-}
-]])],
- [gl_cv_func_stpncpy=yes],
- [gl_cv_func_stpncpy=no],
- [dnl Guess yes on glibc systems and musl systems.
- AC_EGREP_CPP([Thanks for using GNU], [
-#include <features.h>
-#ifdef __GNU_LIBRARY__
- Thanks for using GNU
-#endif
-], [gl_cv_func_stpncpy="guessing yes"],
- [case "$host_os" in
- *-musl* | midipix*) gl_cv_func_stpncpy="guessing yes" ;;
- *) gl_cv_func_stpncpy="$gl_cross_guess_normal" ;;
- esac
- ])
- ])
- ])
- case "$gl_cv_func_stpncpy" in
- *yes)
- AC_DEFINE([HAVE_STPNCPY], [1],
- [Define if you have the stpncpy() function and it works.])
- ;;
- *)
- REPLACE_STPNCPY=1
- ;;
- esac
- else
- HAVE_STPNCPY=0
- case "$gl_cv_onwards_func_stpncpy" in
- future*) REPLACE_STPNCPY=1 ;;
- esac
- fi
-])
-
-# Prerequisites of lib/stpncpy.c.
-AC_DEFUN([gl_PREREQ_STPNCPY], [
- :
-])
projects / emacs.git / commitdiff