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Add sudo_closefrom() regression test.

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This commit is contained in:
Todd C. Miller 2022-03-01 11:31:19 -07:00
parent f1a697a8ff
commit 75a0e51590
5 changed files with 134 additions and 4 deletions
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1
MANIFEST
View File

@ -263,6 +263,7 @@ lib/util/pwrite.c
lib/util/rcstr.c
lib/util/reallocarray.c
lib/util/regex.c
lib/util/regress/closefrom/closefrom_test.c
lib/util/regress/corpus/seed/sudo_conf/sudo.conf.1
lib/util/regress/corpus/seed/sudo_conf/sudo.conf.2
lib/util/regress/corpus/seed/sudo_conf/sudo.conf.3

1
configure vendored
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@ -23111,6 +23111,7 @@ fi
done
fi
COMPAT_TEST_PROGS="${COMPAT_TEST_PROGS}${COMPAT_TEST_PROGS+ }closefrom_test"
fi

1
configure.ac
View File

@ -2923,6 +2923,7 @@ AC_CHECK_FUNCS([closefrom], [], [AC_LIBOBJ(closefrom)
], [
# include <limits.h>
# include <fcntl.h> ])
COMPAT_TEST_PROGS="${COMPAT_TEST_PROGS}${COMPAT_TEST_PROGS+ }closefrom_test"
])
AC_CHECK_FUNCS([mkstemps mkdtemp], [], [break])
if test X"$ac_cv_func_mkstemps$ac_cv_func_mkdtemp" != X"yesyes"; then

28
lib/util/Makefile.in
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@ -156,6 +156,8 @@ PARSELN_TEST_OBJS = parseln_test.lo parseln.lo
PROGNAME_TEST_OBJS = progname_test.lo progname.lo basename.lo
CLOSEFROM_TEST_OBJS = closefrom_test.lo closefrom.lo
CONF_TEST_OBJS = conf_test.lo sudo_conf.lo
HLTQ_TEST_OBJS = hltq_test.lo
@ -261,6 +263,9 @@ mksiglist.h: $(srcdir)/sys_siglist.h
mksigname.h: $(srcdir)/sys_signame.h
$(CPP) $(CPPFLAGS) $(srcdir)/sys_signame.h | $(SED) -e '1,/^int sudo_end_of_headers;/d' -e '/^#/d' > mksigname.h
closefrom_test: $(CLOSEFROM_TEST_OBJS) libsudo_util.la
$(LIBTOOL) $(LTFLAGS) --mode=link $(CC) -o $@ $(CLOSEFROM_TEST_OBJS) libsudo_util.la $(ASAN_LDFLAGS) $(PIE_LDFLAGS) $(SSP_LDFLAGS) $(TEST_LDFLAGS) $(TEST_LIBS)
conf_test: $(CONF_TEST_OBJS) libsudo_util.la
$(LIBTOOL) $(LTFLAGS) --mode=link $(CC) -o $@ $(CONF_TEST_OBJS) libsudo_util.la $(ASAN_LDFLAGS) $(PIE_LDFLAGS) $(SSP_LDFLAGS) $(TEST_LDFLAGS) $(TEST_LIBS)
@ -414,6 +419,9 @@ check: $(TEST_PROGS) check-fuzzer
MALLOC_OPTIONS=S; export MALLOC_OPTIONS; \
MALLOC_CONF="abort:true,junk:true"; export MALLOC_CONF; \
rval=0; \
if test -f closefrom_test; then \
./closefrom_test || rval=`expr $$rval + $$?`; \
fi; \
if test -f parse_gids_test; then \
./parse_gids_test || rval=`expr $$rval + $$?`; \
fi; \
@ -549,6 +557,18 @@ closefrom.i: $(srcdir)/closefrom.c $(incdir)/compat/stdbool.h \
$(CC) -E -o $@ $(CPPFLAGS) $<
closefrom.plog: closefrom.i
rm -f $@; pvs-studio --cfg $(PVS_CFG) --sourcetree-root $(top_srcdir) --skip-cl-exe yes --source-file $(srcdir)/closefrom.c --i-file $< --output-file $@
closefrom_test.lo: $(srcdir)/regress/closefrom/closefrom_test.c \
$(incdir)/compat/stdbool.h $(incdir)/sudo_compat.h \
$(incdir)/sudo_fatal.h $(incdir)/sudo_plugin.h \
$(incdir)/sudo_util.h $(top_builddir)/config.h
$(LIBTOOL) $(LTFLAGS) --mode=compile $(CC) -c -o $@ $(CPPFLAGS) $(CFLAGS) $(ASAN_CFLAGS) $(PIE_CFLAGS) $(SSP_CFLAGS) $(srcdir)/regress/closefrom/closefrom_test.c
closefrom_test.i: $(srcdir)/regress/closefrom/closefrom_test.c \
$(incdir)/compat/stdbool.h $(incdir)/sudo_compat.h \
$(incdir)/sudo_fatal.h $(incdir)/sudo_plugin.h \
$(incdir)/sudo_util.h $(top_builddir)/config.h
$(CC) -E -o $@ $(CPPFLAGS) $<
closefrom_test.plog: closefrom_test.i
rm -f $@; pvs-studio --cfg $(PVS_CFG) --sourcetree-root $(top_srcdir) --skip-cl-exe yes --source-file $(srcdir)/regress/closefrom/closefrom_test.c --i-file $< --output-file $@
conf_test.lo: $(srcdir)/regress/sudo_conf/conf_test.c \
$(incdir)/compat/stdbool.h $(incdir)/sudo_compat.h \
$(incdir)/sudo_conf.h $(incdir)/sudo_debug.h \
@ -1172,12 +1192,12 @@ reallocarray.i: $(srcdir)/reallocarray.c $(incdir)/sudo_compat.h \
reallocarray.plog: reallocarray.i
rm -f $@; pvs-studio --cfg $(PVS_CFG) --sourcetree-root $(top_srcdir) --skip-cl-exe yes --source-file $(srcdir)/reallocarray.c --i-file $< --output-file $@
regex.lo: $(srcdir)/regex.c $(incdir)/compat/stdbool.h $(incdir)/sudo_compat.h \
$(incdir)/sudo_debug.h $(incdir)/sudo_queue.h $(incdir)/sudo_util.h \
$(top_builddir)/config.h
$(incdir)/sudo_debug.h $(incdir)/sudo_gettext.h \
$(incdir)/sudo_queue.h $(incdir)/sudo_util.h $(top_builddir)/config.h
$(LIBTOOL) $(LTFLAGS) --mode=compile $(CC) -c -o $@ $(CPPFLAGS) $(CFLAGS) $(ASAN_CFLAGS) $(PIE_CFLAGS) $(SSP_CFLAGS) $(srcdir)/regex.c
regex.i: $(srcdir)/regex.c $(incdir)/compat/stdbool.h $(incdir)/sudo_compat.h \
$(incdir)/sudo_debug.h $(incdir)/sudo_queue.h $(incdir)/sudo_util.h \
$(top_builddir)/config.h
$(incdir)/sudo_debug.h $(incdir)/sudo_gettext.h \
$(incdir)/sudo_queue.h $(incdir)/sudo_util.h $(top_builddir)/config.h
$(CC) -E -o $@ $(CPPFLAGS) $<
regex.plog: regex.i
rm -f $@; pvs-studio --cfg $(PVS_CFG) --sourcetree-root $(top_srcdir) --skip-cl-exe yes --source-file $(srcdir)/regex.c --i-file $< --output-file $@

107
lib/util/regress/closefrom/closefrom_test.c Normal file
View File

@ -0,0 +1,107 @@
/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2022 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define SUDO_ERROR_WRAP 0
#include "sudo_compat.h"
#include "sudo_fatal.h"
#include "sudo_util.h"
sudo_dso_public int main(int argc, char *argv[]);
/*
* Test that sudo_closefrom() works as expected.
*/
int
main(int argc, char *argv[])
{
int fds[2], flag, maxfd, minfd, errors = 0, ntests = 0;
initprogname(argc > 0 ? argv[0] : "closefrom_test");
/* We use pipe() because it doesn't rely on the filesystem. */
ntests++;
if (pipe(fds) == -1) {
sudo_warn("%s", "pipe");
errors++;
goto done;
}
maxfd = MAX(fds[0], fds[1]);
minfd = MIN(fds[0], fds[1]);
/* Close any fds greater than fds[0] and fds[1]. */
sudo_closefrom(maxfd + 1);
/* Verify that sudo_closefrom() didn't close fds[0] or fds[1]. */
ntests++;
if (fcntl(fds[0], F_GETFL, 0) == -1) {
sudo_warnx("fd %d closed prematurely", fds[0]);
errors++;
goto done;
}
ntests++;
if (fcntl(fds[1], F_GETFL, 0) == -1) {
sudo_warnx("fd %d closed prematurely", fds[1]);
errors++;
goto done;
}
/* Close fds[0], fds[1] and above. */
sudo_closefrom(minfd);
/* Verify that sudo_closefrom() closed both fds. */
ntests++;
flag = fcntl(fds[0], F_GETFD, 0);
#ifdef __APPLE__
/* We only set the close-on-exec flag on macOS. */
if (flag == 1)
flag = -1;
#endif
if (flag != -1) {
sudo_warnx("fd %d still open", fds[0]);
errors++;
goto done;
}
ntests++;
flag = fcntl(fds[1], F_GETFD, 0);
#ifdef __APPLE__
/* We only set the close-on-exec flag on macOS. */
if (flag == 1)
flag = -1;
#endif
if (flag != -1) {
sudo_warnx("fd %d still open", fds[1]);
errors++;
goto done;
}
done:
if (ntests != 0) {
printf("%s: %d tests run, %d errors, %d%% success rate\n",
getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
}
exit(errors);
}