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Fix GH-9653: does not inconditionally support copy_file_range on olde… #9656

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Fix GH-9653: does not inconditionally support copy_file_range on olde… #9656

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28 changes: 27 additions & 1 deletion configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -364,7 +364,6 @@ PHP_CHECK_FUNC(socketpair, socket, network)
PHP_CHECK_FUNC(htonl, socket, network)
PHP_CHECK_FUNC(gethostname, nsl, network)
PHP_CHECK_FUNC(gethostbyaddr, nsl, network)
PHP_CHECK_FUNC(copy_file_range)
PHP_CHECK_FUNC(dlopen, dl, root)
PHP_CHECK_FUNC(dlsym, dl, root)
if test "$ac_cv_func_dlopen" = "yes"; then
Expand Down Expand Up @@ -691,6 +690,33 @@ if test "$ac_cv_func_getaddrinfo" = yes; then
AC_DEFINE(HAVE_GETADDRINFO,1,[Define if you have the getaddrinfo function])
fi

AC_CACHE_CHECK([for copy_file_range], ac_cv_copy_file_range,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#ifdef __linux__
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <linux/version.h>
#include <unistd.h>

int main(void) {
(void)copy_file_range(-1, 0, -1, 0, 0, 0);
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,3,0)
#error "kernel too old"
#else
return 0;
#endif
}
#else
#error "unsupported platform"
#endif
]])], [ac_cv_copy_file_range=yes], [ac_cv_copy_file_range=no])
])

if test "$ac_cv_copy_file_range" = yes; then
AC_DEFINE(HAVE_COPY_FILE_RANGE,1,[Define if copy_file_range support])
fi

AC_REPLACE_FUNCS(strlcat strlcpy explicit_bzero getopt)
AC_FUNC_ALLOCA
PHP_TIME_R_TYPE
Expand Down