ComputerSurge/bind9
3
0
Fork 0
Code Pull Requests 1 Activity

1457. [port] Provide strlcat() and strlcpy() for platforms without

Browse Source 
them.
This commit is contained in:
Mark Andrews
2003-04-10 04:47:56 +00:00
parent cfa19fe5c9
commit 935000aa6e
6 changed files with 283 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
CHANGES
+3
View File
@@ -1,3 +1,6 @@
1457. [port] Provide strlcat() and strlcpy() for platforms without
them.
1456. [contrib] gen-data-queryperf.py from Stephane Bortzmeyer.
1455. [bug] <netaddr> missing from server grammar in
configure
Vendored
+184 -1
View File
@@ -1,5 +1,5 @@
#! /bin/sh
# From configure.in Revision: 1.341 .
# From configure.in Revision: 1.342 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.53.
#
@@ -12945,6 +12945,187 @@ echo "${ECHO_T}no" >&6; ISC_PLATFORM_NEEDSTRSEP="#define ISC_PLATFORM_NEEDSTRSEP
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
echo "$as_me:$LINENO: checking for strlcpy" >&5
echo $ECHO_N "checking for strlcpy... $ECHO_C" >&6
if test "${ac_cv_func_strlcpy+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
#include "confdefs.h"
/* From autoconf 2.57 */
/* Define strlcpy to an innocuous variant, in case <limits.h> declares strlcpy.
For example, HP-UX 11i <limits.h> declares gettimeofday. */
#define strlcpy innocuous_strlcpy
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char strlcpy (); below.
Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
<limits.h> exists even on freestanding compilers. */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
#undef strlcpy
/* Override any gcc2 internal prototype to avoid an error. */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
builtin and then its argument prototype would still apply. */
char strlcpy ();
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
#if defined (__stub_strlcpy) || defined (__stub___strlcpy)
choke me
#else
char (*f) () = strlcpy;
#endif
#ifdef __cplusplus
}
#endif
#ifdef F77_DUMMY_MAIN
# ifdef __cplusplus
extern "C"
# endif
int F77_DUMMY_MAIN() { return 1; }
#endif
int
main ()
{
return f != strlcpy;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_cv_func_strlcpy=yes
else
echo "$as_me: failed program was:" >&5
cat conftest.$ac_ext >&5
ac_cv_func_strlcpy=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_strlcpy" >&5
echo "${ECHO_T}$ac_cv_func_strlcpy" >&6
if test $ac_cv_func_strlcpy = yes; then
ISC_PLATFORM_NEEDSTRLCPY="#undef ISC_PLATFORM_NEEDSTRLCPY"
else
ISC_PLATFORM_NEEDSTRLCPY="#define ISC_PLATFORM_NEEDSTRLCPY 1"
fi
echo "$as_me:$LINENO: checking for strlcat" >&5
echo $ECHO_N "checking for strlcat... $ECHO_C" >&6
if test "${ac_cv_func_strlcat+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
#include "confdefs.h"
/* From autoconf 2.57 */
/* Define strlcat to an innocuous variant, in case <limits.h> declares strlcat.
For example, HP-UX 11i <limits.h> declares gettimeofday. */
#define strlcat innocuous_strlcat
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char strlcat (); below.
Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
<limits.h> exists even on freestanding compilers. */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
#undef strlcat
/* Override any gcc2 internal prototype to avoid an error. */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
builtin and then its argument prototype would still apply. */
char strlcat ();
/* The GNU C library defines this for functions which it implements
to always fail with ENOSYS. Some functions are actually named
something starting with __ and the normal name is an alias. */
#if defined (__stub_strlcat) || defined (__stub___strlcat)
choke me
#else
char (*f) () = strlcat;
#endif
#ifdef __cplusplus
}
#endif
#ifdef F77_DUMMY_MAIN
# ifdef __cplusplus
extern "C"
# endif
int F77_DUMMY_MAIN() { return 1; }
#endif
int
main ()
{
return f != strlcat;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_cv_func_strlcat=yes
else
echo "$as_me: failed program was:" >&5
cat conftest.$ac_ext >&5
ac_cv_func_strlcat=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_strlcat" >&5
echo "${ECHO_T}$ac_cv_func_strlcat" >&6
if test $ac_cv_func_strlcat = yes; then
ISC_PLATFORM_NEEDSTRLCAT="#undef ISC_PLATFORM_NEEDSTRLCAT"
else
ISC_PLATFORM_NEEDSTRLCAT="#define ISC_PLATFORM_NEEDSTRLCAT 1"
fi
echo "$as_me:$LINENO: checking for vsnprintf" >&5
echo $ECHO_N "checking for vsnprintf... $ECHO_C" >&6
if test "${ac_cv_func_vsnprintf+set}" = set; then
@@ -15225,6 +15406,8 @@ s,@ISC_LWRES_GETIPNODEPROTO@,$ISC_LWRES_GETIPNODEPROTO,;t t
s,@ISC_LWRES_GETADDRINFOPROTO@,$ISC_LWRES_GETADDRINFOPROTO,;t t
s,@ISC_LWRES_GETNAMEINFOPROTO@,$ISC_LWRES_GETNAMEINFOPROTO,;t t
s,@ISC_PLATFORM_NEEDSTRSEP@,$ISC_PLATFORM_NEEDSTRSEP,;t t
s,@ISC_PLATFORM_NEEDSTRLCPY@,$ISC_PLATFORM_NEEDSTRLCPY,;t t
s,@ISC_PLATFORM_NEEDSTRLCAT@,$ISC_PLATFORM_NEEDSTRLCAT,;t t
s,@ISC_PLATFORM_NEEDVSNPRINTF@,$ISC_PLATFORM_NEEDVSNPRINTF,;t t
s,@ISC_EXTRA_OBJS@,$ISC_EXTRA_OBJS,;t t
s,@ISC_EXTRA_SRCS@,$ISC_EXTRA_SRCS,;t t
configure.in
+13 -2
View File
@@ -18,7 +18,7 @@ AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
esyscmd([sed "s/^/# /" COPYRIGHT])dnl
AC_DIVERT_POP()dnl
AC_REVISION($Revision: 1.341 $)
AC_REVISION($Revision: 1.342 $)
AC_INIT(lib/dns/name.c)
AC_PREREQ(2.13)
@@ -1573,14 +1573,25 @@ AC_MSG_CHECKING(for correctly declared strsep())
AC_TRY_LINK([#include <string.h>], [char *sp; char *foo = strsep(&sp, ".");],
[AC_MSG_RESULT(yes); ISC_PLATFORM_NEEDSTRSEP="#undef ISC_PLATFORM_NEEDSTRSEP"],
[AC_MSG_RESULT(no); ISC_PLATFORM_NEEDSTRSEP="#define ISC_PLATFORM_NEEDSTRSEP 1"])
AC_SUBST(ISC_PLATFORM_NEEDSTRSEP)
AC_CHECK_FUNC(strlcpy,
[ISC_PLATFORM_NEEDSTRLCPY="#undef ISC_PLATFORM_NEEDSTRLCPY"],
[ISC_PLATFORM_NEEDSTRLCPY="#define ISC_PLATFORM_NEEDSTRLCPY 1"])
AC_SUBST(ISC_PLATFORM_NEEDSTRLCPY)
AC_CHECK_FUNC(strlcat,
[ISC_PLATFORM_NEEDSTRLCAT="#undef ISC_PLATFORM_NEEDSTRLCAT"],
[ISC_PLATFORM_NEEDSTRLCAT="#define ISC_PLATFORM_NEEDSTRLCAT 1"])
AC_SUBST(ISC_PLATFORM_NEEDSTRLCAT)
AC_CHECK_FUNC(vsnprintf,
[ISC_PLATFORM_NEEDVSNPRINTF="#undef ISC_PLATFORM_NEEDVSNPRINTF"],
[ISC_EXTRA_OBJS="$ISC_EXTRA_OBJS print.$O"
ISC_EXTRA_SRCS="$ISC_EXTRA_SRCS print.c"
ISC_PLATFORM_NEEDVSNPRINTF="#define ISC_PLATFORM_NEEDVSNPRINTF 1"])
AC_SUBST(ISC_PLATFORM_NEEDSTRSEP)
AC_SUBST(ISC_PLATFORM_NEEDVSNPRINTF)
AC_CHECK_FUNC(strerror, AC_DEFINE(HAVE_STRERROR))
AC_SUBST(ISC_EXTRA_OBJS)
lib/isc/include/isc/platform.h.in
+11 -1
View File
@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: platform.h.in,v 1.30 2002/11/26 03:50:07 marka Exp $ */
/* $Id: platform.h.in,v 1.31 2003/04/10 04:46:27 marka Exp $ */
#ifndef ISC_PLATFORM_H
#define ISC_PLATFORM_H 1
@@ -106,6 +106,16 @@
*/
@ISC_PLATFORM_NEEDSTRSEP@
/*
* If the system needs strlcpy(), ISC_PLATFORM_NEEDSTRLCPY will be defined.
*/
@ISC_PLATFORM_NEEDSTRLCPY@
/*
* If the system needs strlcat(), ISC_PLATFORM_NEEDSTRLCAT will be defined.
*/
@ISC_PLATFORM_NEEDSTRLCAT@
/*
* Define either ISC_PLATFORM_BSD44MSGHDR or ISC_PLATFORM_BSD43MSGHDR.
*/
lib/isc/include/isc/string.h
+17 -1
View File
@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: string.h,v 1.9 2001/01/09 21:57:37 bwelling Exp $ */
/* $Id: string.h,v 1.10 2003/04/10 04:46:27 marka Exp $ */
#ifndef ISC_STRING_H
#define ISC_STRING_H 1
@@ -51,6 +51,22 @@ isc_string_separate(char **stringp, const char *delim);
#define strsep isc_string_separate
#endif
size_t
isc_string_strlcpy(char *dst, const char *src, size_t size);
#ifdef ISC_PLATFORM_NEEDSTRLCPY
#define strlcpy isc_string_strlcpy
#endif
size_t
isc_string_strlcat(char *dst, const char *src, size_t size);
#ifdef ISC_PLATFORM_NEEDSTRLCAT
#define strlcat isc_string_strlcat
#endif
ISC_LANG_ENDDECLS
#endif /* ISC_STRING_H */
lib/isc/string.c
+55 -1
View File
@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: string.c,v 1.6 2001/01/09 21:56:30 bwelling Exp $ */
/* $Id: string.c,v 1.7 2003/04/10 04:46:27 marka Exp $ */
#include <config.h>
@@ -109,3 +109,57 @@ isc_string_separate(char **stringp, const char *delim) {
*stringp = NULL;
return (string);
}
size_t
strlcpy(char *dst, const char *src, size_t size)
{
char *d = dst;
const char *s = src;
size_t n = size;
/* Copy as many bytes as will fit */
if (n != 0 && --n != 0) {
do {
if ((*d++ = *s++) == 0)
break;
} while (--n != 0);
}
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0) {
if (size != 0)
*d = '\0'; /* NUL-terminate dst */
while (*s++)
;
}
return(s - src - 1); /* count does not include NUL */
}
size_t
strlcat(char *dst, const char *src, size_t size)
{
char *d = dst;
const char *s = src;
size_t n = size;
size_t dlen;
/* Find the end of dst and adjust bytes left but don't go past end */
while (n-- != 0 && *d != '\0')
d++;
dlen = d - dst;
n = size - dlen;
if (n == 0)
return(dlen + strlen(s));
while (*s != '\0') {
if (n != 1) {
*d++ = *s;
n--;
}
s++;
}
*d = '\0';
return(dlen + (s - src)); /* count does not include NUL */
}