#!/bin/sh

# Check how ftruncate, lseek and stat family syscalls are traced.

. "${srcdir=.}/init.sh"

check_prog dd
check_prog find
check_prog grep
check_prog rm

umask 022
truncate_cmd='dd seek=46118400000 obs=1 count=0 if=/dev/null of=sample'
$truncate_cmd > $LOG 2>&1 ||
	{ cat $LOG; framework_skip_ 'failed to create a large sparse file'; }
rm -f sample

$STRACE -edesc $truncate_cmd 2>&1 > /dev/null 2> $LOG &&
LC_ALL=C grep -E -x 'ftruncate(64)?\(1, 46118400000\) += 0' $LOG > /dev/null ||
	{ cat $LOG; fail_ 'strace -edesc failed to trace ftruncate/ftruncate64 properly'; }

LC_ALL=C grep -E -x 'lseek\(1, 46118400000, SEEK_CUR\) += 46118400000|_llseek\(1, 46118400000, \[46118400000\], SEEK_CUR\) += 0' $LOG > /dev/null ||
	{ cat $LOG; fail_ 'strace -edesc failed to trace lseek/_llseek properly'; }

$STRACE -efile find -L sample > /dev/null 2> $LOG &&
LC_ALL=C grep -E -x 'stat(64)?\("sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}\) += 0|(new)?fstatat(64)?\(AT_FDCWD, "sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}, 0\) += 0' $LOG > /dev/null ||
	{ cat $LOG; fail_ 'strace -efile failed to trace stat/stat64 properly'; }

$STRACE -efile find sample > /dev/null 2> $LOG &&
LC_ALL=C grep -E -x 'lstat(64)?\("sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}\) += 0|(new)?fstatat(64)?\(AT_FDCWD, "sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}, AT_SYMLINK_NOFOLLOW\) += 0' $LOG > /dev/null ||
	{ cat $LOG; fail_ 'strace -efile failed to trace fstatat/fstatat64 properly'; }

rm -f sample

exit 0