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selftest for default_file_splice_read() infoleak

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bug fixed in commit b9dc6f65bc ("fix a fencepost error in pipe_advance()")

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-02-18 22:07:24 -05:00
parent 7880b43bdf
commit b8826e506e
4 changed files with 24 additions and 0 deletions
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1
tools/testing/selftests/Makefile
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@ -24,6 +24,7 @@ TARGETS += ptrace
TARGETS += seccomp
TARGETS += sigaltstack
TARGETS += size
TARGETS += splice
TARGETS += static_keys
TARGETS += sync
TARGETS += sysctl

8
tools/testing/selftests/splice/Makefile Normal file
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@ -0,0 +1,8 @@
TEST_PROGS := default_file_splice_read.sh
EXTRA := default_file_splice_read
all: $(TEST_PROGS) $(EXTRA)
include ../lib.mk
clean:
rm -fr $(TEST_PROGS) $(EXTRA)

8
tools/testing/selftests/splice/default_file_splice_read.c Normal file
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@ -0,0 +1,8 @@
#define _GNU_SOURCE
#include <fcntl.h>
int main(int argc, char **argv)
{
splice(0, 0, 1, 0, 1<<30, 0);
return 0;
}

7
tools/testing/selftests/splice/default_file_splice_read.sh Executable file
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@ -0,0 +1,7 @@
#!/bin/sh
n=`./default_file_splice_read </dev/null | wc -c`
test "$n" = 0 && exit 0
echo "default_file_splice_read broken: leaked $n"
exit 1