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lib: Add a little closefrom() test

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Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon Jun 13 14:11:11 CEST 2016 on sn-devel-144
This commit is contained in:
Volker Lendecke 2016-06-10 11:40:33 +02:00 committed by Andreas Schneider
parent 55529d0f85
commit 46916b24e9
1 changed files with 33 additions and 0 deletions
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33
lib/replace/test/testsuite.c
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@ -1063,6 +1063,38 @@ static int test_memmem(void)
return true;
}
static bool test_closefrom(void)
{
int i, fd;
for (i=0; i<100; i++) {
fd = dup(0);
if (fd == -1) {
perror("dup failed");
return false;
}
/* 1000 is just an arbitrarily chosen upper bound */
if (fd >= 1000) {
printf("fd=%d\n", fd);
return false;
}
}
closefrom(3);
for (i=3; i<=fd; i++) {
off_t off;
off = lseek(i, 0, SEEK_CUR);
if ((off != (off_t)-1) || (errno != EBADF)) {
printf("fd %d not closed\n", i);
return false;
}
}
return true;
}
bool torture_local_replace(struct torture_context *ctx)
{
@ -1113,6 +1145,7 @@ bool torture_local_replace(struct torture_context *ctx)
ret &= test_utime();
ret &= test_utimes();
ret &= test_memmem();
ret &= test_closefrom();
return ret;
}