Attachment #2672 for bug #2428




	pstat \
	readpassphrase \
	reallocarray \
	realpath \
	recvmsg \
	rresvport_af \
	sendmsg \

	)
])

AC_CHECK_FUNCS([realpath], [
	dnl the sftp v3 spec says SSH_FXP_REALPATH will "canonicalize any given
	dnl path name", however some implementations of realpath (and some
	dnl versions of the POSIX spec) do not work on non-existent files,
	dnl so we use the OpenBSD implementation on those platforms.
	AC_MSG_CHECKING([if realpath works with non-existent files])
	AC_RUN_IFELSE(
		[AC_LANG_PROGRAM([[
#include <limits.h>
#include <stdlib.h>
#include <errno.h>
		]], [[
		char buf[PATH_MAX];
		if (realpath("/opensshnonexistentfilename1234", buf) == NULL)
			if (errno == ENOENT)
				exit(1);
		exit(0);
		]])],
		[AC_MSG_RESULT([yes])],
		[AC_DEFINE([BROKEN_REALPATH], [1],
			[realpath does not work with nonexistent files])
		 AC_MSG_RESULT([no])],
		[AC_MSG_WARN([cross compiling: assuming working])]
	)
])

dnl    Checks for time functions
AC_CHECK_FUNCS([gettimeofday time])
dnl    Checks for utmp functions




#endif

#if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH)
/*
 * glibc's FORTIFY_SOURCE can redefine this and prevent us picking up the
 * compat version.
 */
# ifdef BROKEN_REALPATH
#  define realpath(x, y) _ssh_compat_realpath(x, y)
# endif

char *realpath(const char *path, char *resolved);
#endif

#ifndef HAVE_RRESVPORT_AF
int rresvport_af(int *alport, sa_family_t af);

Return to bug 2428

Lines 1674-1680 AC_CHECK_FUNCS([ \ Link Here

(-)a/configure.ac (-1 / +26 lines)
1674	pstat \	1674	pstat \
1675	readpassphrase \	1675	readpassphrase \
1676	reallocarray \	1676	reallocarray \
1677	realpath \
1678	recvmsg \	1677	recvmsg \
1679	rresvport_af \	1678	rresvport_af \
1680	sendmsg \	1679	sendmsg \
Lines 1891-1896 AC_CHECK_FUNCS([setresgid], [ Link Here
1891	)	1890	)
1892	])	1891	])
1893		1892
		1893	AC_CHECK_FUNCS([realpath], [
		1894	dnl the sftp v3 spec says SSH_FXP_REALPATH will "canonicalize any given
		1895	dnl path name", however some implementations of realpath (and some
		1896	dnl versions of the POSIX spec) do not work on non-existent files,
		1897	dnl so we use the OpenBSD implementation on those platforms.
		1898	AC_MSG_CHECKING([if realpath works with non-existent files])
		1899	AC_RUN_IFELSE(
		1900	[AC_LANG_PROGRAM([[
		1901	#include <limits.h>
		1902	#include <stdlib.h>
		1903	#include <errno.h>
		1904	]], [[
		1905	char buf[PATH_MAX];
		1906	if (realpath("/opensshnonexistentfilename1234", buf) == NULL)
		1907	if (errno == ENOENT)
		1908	exit(1);
		1909	exit(0);
		1910	]])],
		1911	[AC_MSG_RESULT([yes])],
		1912	[AC_DEFINE([BROKEN_REALPATH], [1],
		1913	[realpath does not work with nonexistent files])
		1914	AC_MSG_RESULT([no])],
		1915	[AC_MSG_WARN([cross compiling: assuming working])]
		1916	)
		1917	])
		1918
1894	dnl Checks for time functions	1919	dnl Checks for time functions
1895	AC_CHECK_FUNCS([gettimeofday time])	1920	AC_CHECK_FUNCS([gettimeofday time])
1896	dnl Checks for utmp functions	1921	dnl Checks for utmp functions

Lines 70-77 void reallocarray(void , size_t, size_t); Link Here

(-)a/openbsd-compat/openbsd-compat.h (-1 / +9 lines)
70	#endif	70	#endif
71		71
72	#if !defined(HAVE_REALPATH) \|\| defined(BROKEN_REALPATH)	72	#if !defined(HAVE_REALPATH) \|\| defined(BROKEN_REALPATH)
		73	/*
		74	* glibc's FORTIFY_SOURCE can redefine this and prevent us picking up the
		75	* compat version.
		76	*/
		77	# ifdef BROKEN_REALPATH
		78	# define realpath(x, y) _ssh_compat_realpath(x, y)
		79	# endif
		80
73	char realpath(const char path, char *resolved);	81	char realpath(const char path, char *resolved);
74	#endif	82	#endif
75		83
76	#ifndef HAVE_RRESVPORT_AF	84	#ifndef HAVE_RRESVPORT_AF
77	int rresvport_af(int *alport, sa_family_t af);	85	int rresvport_af(int *alport, sa_family_t af);