Gecko [ www.foryou-vip.com ]

Name	Size	Permission	Date
.libs	[ DIR ]	drwxr-xr-x	2024-03-12 14:32
html_tables	[ DIR ]	drwxrwxr-x	2022-10-31 11:36
tests	[ DIR ]	drwxrwxr-x	2022-10-31 11:36
Makefile.frag	518 B	-rw-rw-r--	2022-10-31 11:36
Makefile.frag.w32	484 B	-rw-rw-r--	2022-10-31 11:36
array.c	180.31 KB	-rw-rw-r--	2022-10-31 11:36
array.lo	319 B	-rw-r--r--	2024-03-12 14:30
array.o	899.66 KB	-rw-r--r--	2024-03-12 14:30
assert.c	11.06 KB	-rw-rw-r--	2022-10-31 11:36
assert.lo	322 B	-rw-r--r--	2024-03-12 14:31
assert.o	160.11 KB	-rw-r--r--	2024-03-12 14:31
base64.c	30.69 KB	-rw-rw-r--	2022-10-31 11:36
base64.h	3.8 KB	-rw-rw-r--	2022-10-31 11:36
base64.lo	322 B	-rw-r--r--	2024-03-12 14:30
base64.o	87.38 KB	-rw-r--r--	2024-03-12 14:30
basic_functions.c	169.92 KB	-rw-rw-r--	2022-10-31 11:36
basic_functions.h	7.71 KB	-rw-rw-r--	2022-10-31 11:36
basic_functions.lo	349 B	-rw-r--r--	2024-03-12 14:30
basic_functions.o	928.72 KB	-rw-r--r--	2024-03-12 14:30
browscap.c	20.87 KB	-rw-rw-r--	2022-10-31 11:36
browscap.lo	328 B	-rw-r--r--	2024-03-12 14:30
browscap.o	144.24 KB	-rw-r--r--	2024-03-12 14:30
config.m4	12.06 KB	-rw-rw-r--	2022-10-31 11:36
config.w32	1.79 KB	-rw-rw-r--	2022-10-31 11:36
crc32.c	2.78 KB	-rw-rw-r--	2022-10-31 11:36
crc32.h	4.64 KB	-rw-rw-r--	2022-10-31 11:36
crc32.lo	319 B	-rw-r--r--	2024-03-12 14:30
crc32.o	78.52 KB	-rw-r--r--	2024-03-12 14:30
credits.c	5.86 KB	-rw-rw-r--	2022-10-31 11:36
credits.h	1.67 KB	-rw-rw-r--	2022-10-31 11:36
credits.lo	325 B	-rw-r--r--	2024-03-12 14:31
credits.o	112.09 KB	-rw-r--r--	2024-03-12 14:31
credits_ext.h	5.25 KB	-rw-rw-r--	2022-10-31 11:36
credits_sapi.h	835 B	-rw-rw-r--	2022-10-31 11:36
crypt.c	8.2 KB	-rw-rw-r--	2022-10-31 11:36
crypt.lo	319 B	-rw-r--r--	2024-03-12 14:30
crypt.o	94.56 KB	-rw-r--r--	2024-03-12 14:30
crypt_blowfish.c	31.67 KB	-rw-rw-r--	2022-10-31 11:36
crypt_blowfish.h	1.01 KB	-rw-rw-r--	2022-10-31 11:36
crypt_blowfish.lo	346 B	-rw-r--r--	2024-03-12 14:30
crypt_blowfish.o	70.52 KB	-rw-r--r--	2024-03-12 14:30
crypt_freesec.c	21.67 KB	-rw-rw-r--	2022-10-31 11:36
crypt_freesec.h	662 B	-rw-rw-r--	2022-10-31 11:36
crypt_freesec.lo	343 B	-rw-r--r--	2024-03-12 14:30
crypt_freesec.o	30.79 KB	-rw-r--r--	2024-03-12 14:30
crypt_sha256.c	21.56 KB	-rw-rw-r--	2022-10-31 11:36
crypt_sha256.lo	340 B	-rw-r--r--	2024-03-12 14:30
crypt_sha256.o	105.59 KB	-rw-r--r--	2024-03-12 14:30
crypt_sha512.c	26.21 KB	-rw-rw-r--	2022-10-31 11:36
crypt_sha512.lo	340 B	-rw-r--r--	2024-03-12 14:30
crypt_sha512.o	109.91 KB	-rw-r--r--	2024-03-12 14:30
css.c	2.39 KB	-rw-rw-r--	2022-10-31 11:36
css.h	1.19 KB	-rw-rw-r--	2022-10-31 11:36
css.lo	313 B	-rw-r--r--	2024-03-12 14:31
css.o	74.53 KB	-rw-r--r--	2024-03-12 14:31
cyr_convert.c	11.42 KB	-rw-rw-r--	2022-10-31 11:36
cyr_convert.h	1.22 KB	-rw-rw-r--	2022-10-31 11:36
cyr_convert.lo	337 B	-rw-r--r--	2024-03-12 14:30
cyr_convert.o	85.68 KB	-rw-r--r--	2024-03-12 14:30
datetime.c	3.48 KB	-rw-rw-r--	2022-10-31 11:36
datetime.h	1.34 KB	-rw-rw-r--	2022-10-31 11:36
datetime.lo	328 B	-rw-r--r--	2024-03-12 14:30
datetime.o	81.48 KB	-rw-r--r--	2024-03-12 14:30
dir.c	14.9 KB	-rw-rw-r--	2022-10-31 11:36
dir.lo	313 B	-rw-r--r--	2024-03-12 14:30
dir.o	147.7 KB	-rw-r--r--	2024-03-12 14:30
dl.c	8.11 KB	-rw-rw-r--	2022-10-31 11:36
dl.h	1.59 KB	-rw-rw-r--	2022-10-31 11:36
dl.lo	310 B	-rw-r--r--	2024-03-12 14:30
dl.o	106.3 KB	-rw-r--r--	2024-03-12 14:30
dns.c	28.95 KB	-rw-rw-r--	2022-10-31 11:36
dns.lo	313 B	-rw-r--r--	2024-03-12 14:30
dns.o	186.35 KB	-rw-r--r--	2024-03-12 14:30
dns_win32.c	15.22 KB	-rw-rw-r--	2022-10-31 11:36
exec.c	13.49 KB	-rw-rw-r--	2022-10-31 11:36
exec.h	1.68 KB	-rw-rw-r--	2022-10-31 11:36
exec.lo	316 B	-rw-r--r--	2024-03-12 14:30
exec.o	147.67 KB	-rw-r--r--	2024-03-12 14:30
file.c	68.02 KB	-rw-rw-r--	2022-10-31 11:36
file.h	4.63 KB	-rw-rw-r--	2022-10-31 11:36
file.lo	316 B	-rw-r--r--	2024-03-12 14:30
file.o	448.2 KB	-rw-r--r--	2024-03-12 14:30
filestat.c	30.34 KB	-rw-rw-r--	2022-10-31 11:36
filestat.lo	328 B	-rw-r--r--	2024-03-12 14:30
filestat.o	263.89 KB	-rw-r--r--	2024-03-12 14:30
filters.c	53.65 KB	-rw-rw-r--	2022-10-31 11:36
filters.lo	325 B	-rw-r--r--	2024-03-12 14:31
filters.o	190.89 KB	-rw-r--r--	2024-03-12 14:31
flock_compat.c	6.73 KB	-rw-rw-r--	2022-10-31 11:36
flock_compat.h	2.06 KB	-rw-rw-r--	2022-10-31 11:36
flock_compat.lo	340 B	-rw-r--r--	2024-03-12 14:30
flock_compat.o	69.09 KB	-rw-r--r--	2024-03-12 14:30
formatted_print.c	20.84 KB	-rw-rw-r--	2022-10-31 11:36
formatted_print.lo	349 B	-rw-r--r--	2024-03-12 14:30
formatted_print.o	180.03 KB	-rw-r--r--	2024-03-12 14:30
fsock.c	3.95 KB	-rw-rw-r--	2022-10-31 11:36
fsock.h	1.42 KB	-rw-rw-r--	2022-10-31 11:36
fsock.lo	319 B	-rw-r--r--	2024-03-12 14:30
fsock.o	89.59 KB	-rw-r--r--	2024-03-12 14:30
ftok.c	2.05 KB	-rw-rw-r--	2022-10-31 11:36
ftok.lo	316 B	-rw-r--r--	2024-03-12 14:31
ftok.o	78.41 KB	-rw-r--r--	2024-03-12 14:31
ftp_fopen_wrapper.c	31.75 KB	-rw-rw-r--	2022-10-31 11:36
ftp_fopen_wrapper.lo	355 B	-rw-r--r--	2024-03-12 14:31
ftp_fopen_wrapper.o	157.71 KB	-rw-r--r--	2024-03-12 14:31
head.c	12.54 KB	-rw-rw-r--	2022-10-31 11:36
head.h	1.85 KB	-rw-rw-r--	2022-10-31 11:36
head.lo	316 B	-rw-r--r--	2024-03-12 14:30
head.o	186.44 KB	-rw-r--r--	2024-03-12 14:30
hrtime.c	5.06 KB	-rw-rw-r--	2022-10-31 11:36
hrtime.h	2.48 KB	-rw-rw-r--	2022-10-31 11:36
hrtime.lo	322 B	-rw-r--r--	2024-03-12 14:32
hrtime.o	86.02 KB	-rw-r--r--	2024-03-12 14:32
html.c	47 KB	-rw-rw-r--	2022-10-31 11:36
html.h	2.62 KB	-rw-rw-r--	2022-10-31 11:36
html.lo	316 B	-rw-r--r--	2024-03-12 14:31
html.o	1.03 MB	-rw-r--r--	2024-03-12 14:31
html_tables.h	472.41 KB	-rw-rw-r--	2022-10-31 11:36
http.c	7.46 KB	-rw-rw-r--	2022-10-31 11:36
http.lo	316 B	-rw-r--r--	2024-03-12 14:32
http.o	118.94 KB	-rw-r--r--	2024-03-12 14:32
http_fopen_wrapper.c	32.52 KB	-rw-rw-r--	2022-10-31 11:36
http_fopen_wrapper.lo	358 B	-rw-r--r--	2024-03-12 14:31
http_fopen_wrapper.o	248.67 KB	-rw-r--r--	2024-03-12 14:31
image.c	42.17 KB	-rw-rw-r--	2022-10-31 11:36
image.lo	319 B	-rw-r--r--	2024-03-12 14:31
image.o	166.95 KB	-rw-r--r--	2024-03-12 14:31
incomplete_class.c	5.04 KB	-rw-rw-r--	2022-10-31 11:36
incomplete_class.lo	352 B	-rw-r--r--	2024-03-12 14:31
incomplete_class.o	85.84 KB	-rw-r--r--	2024-03-12 14:31
info.c	40.22 KB	-rw-rw-r--	2022-10-31 11:36
info.h	22.6 KB	-rw-rw-r--	2022-10-31 11:36
info.lo	316 B	-rw-r--r--	2024-03-12 14:31
info.o	249.2 KB	-rw-r--r--	2024-03-12 14:31
iptc.c	9.57 KB	-rw-rw-r--	2022-10-31 11:36
iptc.lo	316 B	-rw-r--r--	2024-03-12 14:31
iptc.o	106.11 KB	-rw-r--r--	2024-03-12 14:31
lcg.c	3 KB	-rw-rw-r--	2022-10-31 11:36
lcg.lo	313 B	-rw-r--r--	2024-03-12 14:31
lcg.o	75.09 KB	-rw-r--r--	2024-03-12 14:31
levenshtein.c	3.92 KB	-rw-rw-r--	2022-10-31 11:36
levenshtein.lo	337 B	-rw-r--r--	2024-03-12 14:31
levenshtein.o	76.74 KB	-rw-r--r--	2024-03-12 14:31
link.c	5.84 KB	-rw-rw-r--	2022-10-31 11:36
link.lo	316 B	-rw-r--r--	2024-03-12 14:31
link.o	101.48 KB	-rw-r--r--	2024-03-12 14:31
mail.c	17.34 KB	-rw-rw-r--	2022-10-31 11:36
mail.lo	316 B	-rw-r--r--	2024-03-12 14:31
mail.o	170.32 KB	-rw-r--r--	2024-03-12 14:31
math.c	30.06 KB	-rw-rw-r--	2022-10-31 11:36
math.lo	316 B	-rw-r--r--	2024-03-12 14:31
math.o	263.9 KB	-rw-r--r--	2024-03-12 14:31
md5.c	10.91 KB	-rw-rw-r--	2022-10-31 11:36
md5.h	2.1 KB	-rw-rw-r--	2022-10-31 11:36
md5.lo	313 B	-rw-r--r--	2024-03-12 14:31
md5.o	104.06 KB	-rw-r--r--	2024-03-12 14:31
metaphone.c	11.96 KB	-rw-rw-r--	2022-10-31 11:36
metaphone.lo	331 B	-rw-r--r--	2024-03-12 14:31
metaphone.o	170.27 KB	-rw-r--r--	2024-03-12 14:31
microtime.c	4.29 KB	-rw-rw-r--	2022-10-31 11:36
microtime.h	1.32 KB	-rw-rw-r--	2022-10-31 11:36
microtime.lo	331 B	-rw-r--r--	2024-03-12 14:31
microtime.o	87.61 KB	-rw-r--r--	2024-03-12 14:31
mt_rand.c	10.84 KB	-rw-rw-r--	2022-10-31 11:36
mt_rand.lo	325 B	-rw-r--r--	2024-03-12 14:31
mt_rand.o	94.95 KB	-rw-r--r--	2024-03-12 14:31
net.c	8.97 KB	-rw-rw-r--	2022-10-31 11:36
net.lo	313 B	-rw-r--r--	2024-03-12 14:32
net.o	85.18 KB	-rw-r--r--	2024-03-12 14:32
pack.c	31.5 KB	-rw-rw-r--	2022-10-31 11:36
pack.h	1.24 KB	-rw-rw-r--	2022-10-31 11:36
pack.lo	316 B	-rw-r--r--	2024-03-12 14:31
pack.o	149.25 KB	-rw-r--r--	2024-03-12 14:31
pageinfo.c	3.72 KB	-rw-rw-r--	2022-10-31 11:36
pageinfo.h	1.42 KB	-rw-rw-r--	2022-10-31 11:36
pageinfo.lo	328 B	-rw-r--r--	2024-03-12 14:31
pageinfo.o	84.04 KB	-rw-r--r--	2024-03-12 14:31
password.c	21.94 KB	-rw-rw-r--	2022-10-31 11:36
password.lo	328 B	-rw-r--r--	2024-03-12 14:32
password.o	142.6 KB	-rw-r--r--	2024-03-12 14:32
php_array.h	4.41 KB	-rw-rw-r--	2022-10-31 11:36
php_assert.h	1.38 KB	-rw-rw-r--	2022-10-31 11:36
php_browscap.h	1.28 KB	-rw-rw-r--	2022-10-31 11:36
php_crypt.h	1.54 KB	-rw-rw-r--	2022-10-31 11:36
php_crypt_r.c	10.76 KB	-rw-rw-r--	2022-10-31 11:36
php_crypt_r.h	1.99 KB	-rw-rw-r--	2022-10-31 11:36
php_crypt_r.lo	337 B	-rw-r--r--	2024-03-12 14:30
php_crypt_r.o	80.88 KB	-rw-r--r--	2024-03-12 14:30
php_dir.h	1.66 KB	-rw-rw-r--	2022-10-31 11:36
php_dns.h	2.96 KB	-rw-rw-r--	2022-10-31 11:36
php_ext_syslog.h	1.46 KB	-rw-rw-r--	2022-10-31 11:36
php_filestat.h	3.1 KB	-rw-rw-r--	2022-10-31 11:36
php_fopen_wrapper.c	11.6 KB	-rw-rw-r--	2022-10-31 11:36
php_fopen_wrapper.lo	355 B	-rw-r--r--	2024-03-12 14:31
php_fopen_wrapper.o	114.31 KB	-rw-r--r--	2024-03-12 14:31
php_fopen_wrappers.h	1.94 KB	-rw-rw-r--	2022-10-31 11:36
php_ftok.h	1.22 KB	-rw-rw-r--	2022-10-31 11:36
php_http.h	1.62 KB	-rw-rw-r--	2022-10-31 11:36
php_image.h	2.37 KB	-rw-rw-r--	2022-10-31 11:36
php_incomplete_class.h	2.24 KB	-rw-rw-r--	2022-10-31 11:36
php_iptc.h	1.23 KB	-rw-rw-r--	2022-10-31 11:36
php_lcg.h	1.48 KB	-rw-rw-r--	2022-10-31 11:36
php_link.h	1.33 KB	-rw-rw-r--	2022-10-31 11:36
php_mail.h	2.37 KB	-rw-rw-r--	2022-10-31 11:36
php_math.h	4.65 KB	-rw-rw-r--	2022-10-31 11:36
php_metaphone.h	1.2 KB	-rw-rw-r--	2022-10-31 11:36
php_mt_rand.h	1.96 KB	-rw-rw-r--	2022-10-31 11:36
php_net.h	1.32 KB	-rw-rw-r--	2022-10-31 11:36
php_password.h	3.07 KB	-rw-rw-r--	2022-10-31 11:36
php_rand.h	3.14 KB	-rw-rw-r--	2022-10-31 11:36
php_random.h	2.07 KB	-rw-rw-r--	2022-10-31 11:36
php_smart_string.h	1.28 KB	-rw-rw-r--	2022-10-31 11:36
php_smart_string_public.h	1.29 KB	-rw-rw-r--	2022-10-31 11:36
php_standard.h	2.24 KB	-rw-rw-r--	2022-10-31 11:36
php_string.h	5.94 KB	-rw-rw-r--	2022-10-31 11:36
php_type.h	1.62 KB	-rw-rw-r--	2022-10-31 11:36
php_uuencode.h	1.38 KB	-rw-rw-r--	2022-10-31 11:36
php_var.h	3.61 KB	-rw-rw-r--	2022-10-31 11:36
php_versioning.h	1.36 KB	-rw-rw-r--	2022-10-31 11:36
proc_open.c	31.34 KB	-rw-rw-r--	2022-10-31 11:36
proc_open.h	1.74 KB	-rw-rw-r--	2022-10-31 11:36
proc_open.lo	331 B	-rw-r--r--	2024-03-12 14:32
proc_open.o	159.39 KB	-rw-r--r--	2024-03-12 14:32
quot_print.c	7.29 KB	-rw-rw-r--	2022-10-31 11:36
quot_print.h	1.45 KB	-rw-rw-r--	2022-10-31 11:36
quot_print.lo	334 B	-rw-r--r--	2024-03-12 14:31
quot_print.o	90.55 KB	-rw-r--r--	2024-03-12 14:31
rand.c	2.41 KB	-rw-rw-r--	2022-10-31 11:36
rand.lo	316 B	-rw-r--r--	2024-03-12 14:31
rand.o	79.04 KB	-rw-r--r--	2024-03-12 14:31
random.c	7.49 KB	-rw-rw-r--	2022-10-31 11:36
random.lo	322 B	-rw-r--r--	2024-03-12 14:32
random.o	88.59 KB	-rw-r--r--	2024-03-12 14:32
scanf.c	28.81 KB	-rw-rw-r--	2022-10-31 11:36
scanf.h	2.24 KB	-rw-rw-r--	2022-10-31 11:36
scanf.lo	319 B	-rw-r--r--	2024-03-12 14:31
scanf.o	122.94 KB	-rw-r--r--	2024-03-12 14:31
sha1.c	11.44 KB	-rw-rw-r--	2022-10-31 11:36
sha1.h	1.69 KB	-rw-rw-r--	2022-10-31 11:36
sha1.lo	316 B	-rw-r--r--	2024-03-12 14:31
sha1.o	118.13 KB	-rw-r--r--	2024-03-12 14:31
soundex.c	3.16 KB	-rw-rw-r--	2022-10-31 11:36
soundex.lo	325 B	-rw-r--r--	2024-03-12 14:31
soundex.o	77.52 KB	-rw-r--r--	2024-03-12 14:31
streamsfuncs.c	46.41 KB	-rw-rw-r--	2022-10-31 11:36
streamsfuncs.h	2.73 KB	-rw-rw-r--	2022-10-31 11:36
streamsfuncs.lo	340 B	-rw-r--r--	2024-03-12 14:32
streamsfuncs.o	341.69 KB	-rw-r--r--	2024-03-12 14:32
string.c	154.56 KB	-rw-rw-r--	2022-10-31 11:36
string.lo	322 B	-rw-r--r--	2024-03-12 14:31
string.o	871.95 KB	-rw-r--r--	2024-03-12 14:31
strnatcmp.c	4.34 KB	-rw-rw-r--	2022-10-31 11:36
strnatcmp.lo	331 B	-rw-r--r--	2024-03-12 14:31
strnatcmp.o	71.72 KB	-rw-r--r--	2024-03-12 14:31
syslog.c	6.37 KB	-rw-rw-r--	2022-10-31 11:36
syslog.lo	322 B	-rw-r--r--	2024-03-12 14:31
syslog.o	96.32 KB	-rw-r--r--	2024-03-12 14:31
type.c	10.17 KB	-rw-rw-r--	2022-10-31 11:36
type.lo	316 B	-rw-r--r--	2024-03-12 14:31
type.o	130.52 KB	-rw-r--r--	2024-03-12 14:31
uniqid.c	2.65 KB	-rw-rw-r--	2022-10-31 11:36
uniqid.h	1.23 KB	-rw-rw-r--	2022-10-31 11:36
uniqid.lo	322 B	-rw-r--r--	2024-03-12 14:31
uniqid.o	81.45 KB	-rw-r--r--	2024-03-12 14:31
url.c	17.75 KB	-rw-rw-r--	2022-10-31 11:36
url.h	2.39 KB	-rw-rw-r--	2022-10-31 11:36
url.lo	313 B	-rw-r--r--	2024-03-12 14:31
url.o	157.62 KB	-rw-r--r--	2024-03-12 14:31
url_scanner_ex.c	39.41 KB	-rw-r--r--	2022-10-31 11:36
url_scanner_ex.h	2.44 KB	-rw-rw-r--	2022-10-31 11:36
url_scanner_ex.lo	346 B	-rw-r--r--	2024-03-12 14:31
url_scanner_ex.o	322.59 KB	-rw-r--r--	2024-03-12 14:31
url_scanner_ex.re	27.65 KB	-rw-rw-r--	2022-10-31 11:36
user_filters.c	17.55 KB	-rw-rw-r--	2022-10-31 11:36
user_filters.lo	340 B	-rw-r--r--	2024-03-12 14:31
user_filters.o	142.52 KB	-rw-r--r--	2024-03-12 14:31
uuencode.c	6.62 KB	-rw-rw-r--	2022-10-31 11:36
uuencode.lo	328 B	-rw-r--r--	2024-03-12 14:31
uuencode.o	85.96 KB	-rw-r--r--	2024-03-12 14:31
var.c	37.8 KB	-rw-rw-r--	2022-10-31 11:36
var.lo	313 B	-rw-r--r--	2024-03-12 14:31
var.o	399.8 KB	-rw-r--r--	2024-03-12 14:31
var_unserializer.c	38.52 KB	-rw-r--r--	2022-10-31 11:36
var_unserializer.lo	352 B	-rw-r--r--	2024-03-12 14:31
var_unserializer.o	244.13 KB	-rw-r--r--	2024-03-12 14:31
var_unserializer.re	30.81 KB	-rw-rw-r--	2022-10-31 11:36
versioning.c	5.76 KB	-rw-rw-r--	2022-10-31 11:36
versioning.lo	334 B	-rw-r--r--	2024-03-12 14:31
versioning.o	95.11 KB	-rw-r--r--	2024-03-12 14:31
winver.h	6.23 KB	-rw-rw-r--	2022-10-31 11:36

Rename

/*
   +----------------------------------------------------------------------+
   | PHP Version 7                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Rasmus Lerdorf <rasmus@php.net>                              |
   |         Ilia Alshanetsky <iliaa@php.net>                             |
   +----------------------------------------------------------------------+
 */

#include <stdio.h>
#include "php.h"
#include <ctype.h>
#include "php_string.h"
#include "ext/standard/head.h"
#include "ext/standard/file.h"
#include "basic_functions.h"
#include "exec.h"
#include "php_globals.h"
#include "SAPI.h"

#if HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif

#include <signal.h>

#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif

#if HAVE_UNISTD_H
#include <unistd.h>
#endif

#include <limits.h>

#ifdef PHP_WIN32
# include "win32/nice.h"
#endif

static size_t cmd_max_len;

/* {{{ PHP_MINIT_FUNCTION(exec) */
PHP_MINIT_FUNCTION(exec)
{
#ifdef _SC_ARG_MAX
	cmd_max_len = sysconf(_SC_ARG_MAX);
	if ((size_t)-1 == cmd_max_len) {
#ifdef _POSIX_ARG_MAX
		cmd_max_len = _POSIX_ARG_MAX;
#else
		cmd_max_len = 4096;
#endif
	}
#elif defined(ARG_MAX)
	cmd_max_len = ARG_MAX;
#elif defined(PHP_WIN32)
	/* Executed commands will run through cmd.exe. As long as it's the case,
		it's just the constant limit.*/
	cmd_max_len = 8192;
#else
	/* This is just an arbitrary value for the fallback case. */
	cmd_max_len = 4096;
#endif

return SUCCESS;
}
/* }}} */

/* {{{ php_exec
 * If type==0, only last line of output is returned (exec)
 * If type==1, all lines will be printed and last lined returned (system)
 * If type==2, all lines will be saved to given array (exec with &$array)
 * If type==3, output will be printed binary, no lines will be saved or returned (passthru)
 *
 */
PHPAPI int php_exec(int type, char *cmd, zval *array, zval *return_value)
{
	FILE *fp;
	char *buf;
	size_t l = 0;
	int pclose_return;
	char *b, *d=NULL;
	php_stream *stream;
	size_t buflen, bufl = 0;
#if PHP_SIGCHILD
	void (*sig_handler)() = NULL;
#endif

#if PHP_SIGCHILD
	sig_handler = signal (SIGCHLD, SIG_DFL);
#endif

#ifdef PHP_WIN32
	fp = VCWD_POPEN(cmd, "rb");
#else
	fp = VCWD_POPEN(cmd, "r");
#endif
	if (!fp) {
		php_error_docref(NULL, E_WARNING, "Unable to fork [%s]", cmd);
		goto err;
	}

stream = php_stream_fopen_from_pipe(fp, "rb");

buf = (char *) emalloc(EXEC_INPUT_BUF);
	buflen = EXEC_INPUT_BUF;

if (type != 3) {
		b = buf;

while (php_stream_get_line(stream, b, EXEC_INPUT_BUF, &bufl)) {
			/* no new line found, let's read some more */
			if (b[bufl - 1] != '\n' && !php_stream_eof(stream)) {
				if (buflen < (bufl + (b - buf) + EXEC_INPUT_BUF)) {
					bufl += b - buf;
					buflen = bufl + EXEC_INPUT_BUF;
					buf = erealloc(buf, buflen);
					b = buf + bufl;
				} else {
					b += bufl;
				}
				continue;
			} else if (b != buf) {
				bufl += b - buf;
			}

if (type == 1) {
				PHPWRITE(buf, bufl);
				if (php_output_get_level() < 1) {
					sapi_flush();
				}
			} else if (type == 2) {
				/* strip trailing whitespaces */
				l = bufl;
				while (l-- > 0 && isspace(((unsigned char *)buf)[l]));
				if (l != (bufl - 1)) {
					bufl = l + 1;
					buf[bufl] = '\0';
				}
				add_next_index_stringl(array, buf, bufl);
			}
			b = buf;
		}
		if (bufl) {
			/* output remaining data in buffer */
			if (type == 1 && buf != b) {
				PHPWRITE(buf, bufl);
				if (php_output_get_level() < 1) {
					sapi_flush();
				}
			}
			/* strip trailing whitespaces if we have not done so already */
			if ((type == 2 && buf != b) || type != 2) {
				l = bufl;
				while (l-- > 0 && isspace(((unsigned char *)buf)[l]));
				if (l != (bufl - 1)) {
					bufl = l + 1;
					buf[bufl] = '\0';
				}
				if (type == 2) {
					add_next_index_stringl(array, buf, bufl);
				}
			}

/* Return last line from the shell command */
			RETVAL_STRINGL(buf, bufl);
		} else { /* should return NULL, but for BC we return "" */
			RETVAL_EMPTY_STRING();
		}
	} else {
		ssize_t read;
		while ((read = php_stream_read(stream, buf, EXEC_INPUT_BUF)) > 0) {
			PHPWRITE(buf, read);
		}
	}

pclose_return = php_stream_close(stream);
	efree(buf);

done:
#if PHP_SIGCHILD
	if (sig_handler) {
		signal(SIGCHLD, sig_handler);
	}
#endif
	if (d) {
		efree(d);
	}
	return pclose_return;
err:
	pclose_return = -1;
	goto done;
}
/* }}} */

static void php_exec_ex(INTERNAL_FUNCTION_PARAMETERS, int mode) /* {{{ */
{
	char *cmd;
	size_t cmd_len;
	zval *ret_code=NULL, *ret_array=NULL;
	int ret;

ZEND_PARSE_PARAMETERS_START(1, (mode ? 2 : 3))
		Z_PARAM_STRING(cmd, cmd_len)
		Z_PARAM_OPTIONAL
		if (!mode) {
			Z_PARAM_ZVAL(ret_array)
		}
		Z_PARAM_ZVAL(ret_code)
	ZEND_PARSE_PARAMETERS_END_EX(RETURN_FALSE);

if (!cmd_len) {
		php_error_docref(NULL, E_WARNING, "Cannot execute a blank command");
		RETURN_FALSE;
	}
	if (strlen(cmd) != cmd_len) {
		php_error_docref(NULL, E_WARNING, "NULL byte detected. Possible attack");
		RETURN_FALSE;
	}

if (!ret_array) {
		ret = php_exec(mode, cmd, NULL, return_value);
	} else {
		if (Z_TYPE_P(Z_REFVAL_P(ret_array)) == IS_ARRAY) {
			ZVAL_DEREF(ret_array);
			SEPARATE_ARRAY(ret_array);
		} else {
			ret_array = zend_try_array_init(ret_array);
			if (!ret_array) {
				return;
			}
		}

ret = php_exec(2, cmd, ret_array, return_value);
	}
	if (ret_code) {
		ZEND_TRY_ASSIGN_REF_LONG(ret_code, ret);
	}
}
/* }}} */

/* {{{ proto string exec(string command [, array &output [, int &return_value]])
   Execute an external program */
PHP_FUNCTION(exec)
{
	php_exec_ex(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */

/* {{{ proto int system(string command [, int &return_value])
   Execute an external program and display output */
PHP_FUNCTION(system)
{
	php_exec_ex(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */

/* {{{ proto void passthru(string command [, int &return_value])
   Execute an external program and display raw output */
PHP_FUNCTION(passthru)
{
	php_exec_ex(INTERNAL_FUNCTION_PARAM_PASSTHRU, 3);
}
/* }}} */

/* {{{ php_escape_shell_cmd
   Escape all chars that could possibly be used to
   break out of a shell command

This function emalloc's a string and returns the pointer.
   Remember to efree it when done with it.

*NOT* safe for binary strings
*/
PHPAPI zend_string *php_escape_shell_cmd(char *str)
{
	register size_t x, y;
	size_t l = strlen(str);
	uint64_t estimate = (2 * (uint64_t)l) + 1;
	zend_string *cmd;
#ifndef PHP_WIN32
	char *p = NULL;
#endif

/* max command line length - two single quotes - \0 byte length */
	if (l > cmd_max_len - 2 - 1) {
		php_error_docref(NULL, E_ERROR, "Command exceeds the allowed length of %zu bytes", cmd_max_len);
		return ZSTR_EMPTY_ALLOC();
	}

cmd = zend_string_safe_alloc(2, l, 0, 0);

for (x = 0, y = 0; x < l; x++) {
		int mb_len = php_mblen(str + x, (l - x));

/* skip non-valid multibyte characters */
		if (mb_len < 0) {
			continue;
		} else if (mb_len > 1) {
			memcpy(ZSTR_VAL(cmd) + y, str + x, mb_len);
			y += mb_len;
			x += mb_len - 1;
			continue;
		}

switch (str[x]) {
#ifndef PHP_WIN32
			case '"':
			case '\'':
				if (!p && (p = memchr(str + x + 1, str[x], l - x - 1))) {
					/* noop */
				} else if (p && *p == str[x]) {
					p = NULL;
				} else {
					ZSTR_VAL(cmd)[y++] = '\\';
				}
				ZSTR_VAL(cmd)[y++] = str[x];
				break;
#else
			/* % is Windows specific for environmental variables, ^%PATH% will
				output PATH while ^%PATH^% will not. escapeshellcmd->val will escape all % and !.
			*/
			case '%':
			case '!':
			case '"':
			case '\'':
#endif
			case '#': /* This is character-set independent */
			case '&':
			case ';':
			case '`':
			case '|':
			case '*':
			case '?':
			case '~':
			case '<':
			case '>':
			case '^':
			case '(':
			case ')':
			case '[':
			case ']':
			case '{':
			case '}':
			case '$':
			case '\\':
			case '\x0A': /* excluding these two */
			case '\xFF':
#ifdef PHP_WIN32
				ZSTR_VAL(cmd)[y++] = '^';
#else
				ZSTR_VAL(cmd)[y++] = '\\';
#endif
				/* fall-through */
			default:
				ZSTR_VAL(cmd)[y++] = str[x];

}
	}
	ZSTR_VAL(cmd)[y] = '\0';

if (y > cmd_max_len + 1) {
		php_error_docref(NULL, E_ERROR, "Escaped command exceeds the allowed length of %zu bytes", cmd_max_len);
		zend_string_release_ex(cmd, 0);
		return ZSTR_EMPTY_ALLOC();
	}

if ((estimate - y) > 4096) {
		/* realloc if the estimate was way overill
		 * Arbitrary cutoff point of 4096 */
		cmd = zend_string_truncate(cmd, y, 0);
	}

ZSTR_LEN(cmd) = y;

return cmd;
}
/* }}} */

/* {{{ php_escape_shell_arg
 */
PHPAPI zend_string *php_escape_shell_arg(char *str)
{
	size_t x, y = 0;
	size_t l = strlen(str);
	zend_string *cmd;
	uint64_t estimate = (4 * (uint64_t)l) + 3;

/* max command line length - two single quotes - \0 byte length */
	if (l > cmd_max_len - 2 - 1) {
		php_error_docref(NULL, E_ERROR, "Argument exceeds the allowed length of %zu bytes", cmd_max_len);
		return ZSTR_EMPTY_ALLOC();
	}

cmd = zend_string_safe_alloc(4, l, 2, 0); /* worst case */

#ifdef PHP_WIN32
	ZSTR_VAL(cmd)[y++] = '"';
#else
	ZSTR_VAL(cmd)[y++] = '\'';
#endif

for (x = 0; x < l; x++) {
		int mb_len = php_mblen(str + x, (l - x));

switch (str[x]) {
#ifdef PHP_WIN32
		case '"':
		case '%':
		case '!':
			ZSTR_VAL(cmd)[y++] = ' ';
			break;
#else
		case '\'':
			ZSTR_VAL(cmd)[y++] = '\'';
			ZSTR_VAL(cmd)[y++] = '\\';
			ZSTR_VAL(cmd)[y++] = '\'';
#endif
			/* fall-through */
		default:
			ZSTR_VAL(cmd)[y++] = str[x];
		}
	}
#ifdef PHP_WIN32
	if (y > 0 && '\\' == ZSTR_VAL(cmd)[y - 1]) {
		int k = 0, n = y - 1;
		for (; n >= 0 && '\\' == ZSTR_VAL(cmd)[n]; n--, k++);
		if (k % 2) {
			ZSTR_VAL(cmd)[y++] = '\\';
		}
	}

ZSTR_VAL(cmd)[y++] = '"';
#else
	ZSTR_VAL(cmd)[y++] = '\'';
#endif
	ZSTR_VAL(cmd)[y] = '\0';

if (y > cmd_max_len + 1) {
		php_error_docref(NULL, E_ERROR, "Escaped argument exceeds the allowed length of %zu bytes", cmd_max_len);
		zend_string_release_ex(cmd, 0);
		return ZSTR_EMPTY_ALLOC();
	}

if ((estimate - y) > 4096) {
		/* realloc if the estimate was way overill
		 * Arbitrary cutoff point of 4096 */
		cmd = zend_string_truncate(cmd, y, 0);
	}
	ZSTR_LEN(cmd) = y;
	return cmd;
}
/* }}} */

/* {{{ proto string escapeshellcmd(string command)
   Escape shell metacharacters */
PHP_FUNCTION(escapeshellcmd)
{
	char *command;
	size_t command_len;

ZEND_PARSE_PARAMETERS_START(1, 1)
		Z_PARAM_STRING(command, command_len)
	ZEND_PARSE_PARAMETERS_END();

if (command_len) {
		if (command_len != strlen(command)) {
			php_error_docref(NULL, E_ERROR, "Input string contains NULL bytes");
			return;
		}
		RETVAL_STR(php_escape_shell_cmd(command));
	} else {
		RETVAL_EMPTY_STRING();
	}
}
/* }}} */

/* {{{ proto string escapeshellarg(string arg)
   Quote and escape an argument for use in a shell command */
PHP_FUNCTION(escapeshellarg)
{
	char *argument;
	size_t argument_len;

ZEND_PARSE_PARAMETERS_START(1, 1)
		Z_PARAM_STRING(argument, argument_len)
	ZEND_PARSE_PARAMETERS_END();

if (argument) {
		if (argument_len != strlen(argument)) {
			php_error_docref(NULL, E_ERROR, "Input string contains NULL bytes");
			return;
		}
		RETVAL_STR(php_escape_shell_arg(argument));
	}
}
/* }}} */

/* {{{ proto string shell_exec(string cmd)
   Execute command via shell and return complete output as string */
PHP_FUNCTION(shell_exec)
{
	FILE *in;
	char *command;
	size_t command_len;
	zend_string *ret;
	php_stream *stream;

ZEND_PARSE_PARAMETERS_START(1, 1)
		Z_PARAM_STRING(command, command_len)
	ZEND_PARSE_PARAMETERS_END();

if (!command_len) {
		php_error_docref(NULL, E_WARNING, "Cannot execute a blank command");
		RETURN_FALSE;
	}
	if (strlen(command) != command_len) {
		php_error_docref(NULL, E_WARNING, "NULL byte detected. Possible attack");
		RETURN_FALSE;
	}

#ifdef PHP_WIN32
	if ((in=VCWD_POPEN(command, "rt"))==NULL) {
#else
	if ((in=VCWD_POPEN(command, "r"))==NULL) {
#endif
		php_error_docref(NULL, E_WARNING, "Unable to execute '%s'", command);
		RETURN_FALSE;
	}

stream = php_stream_fopen_from_pipe(in, "rb");
	ret = php_stream_copy_to_mem(stream, PHP_STREAM_COPY_ALL, 0);
	php_stream_close(stream);

if (ret && ZSTR_LEN(ret) > 0) {
		RETVAL_STR(ret);
	}
}
/* }}} */

#ifdef HAVE_NICE
/* {{{ proto bool proc_nice(int priority)
   Change the priority of the current process */
PHP_FUNCTION(proc_nice)
{
	zend_long pri;

ZEND_PARSE_PARAMETERS_START(1, 1)
		Z_PARAM_LONG(pri)
	ZEND_PARSE_PARAMETERS_END_EX(RETURN_FALSE);

errno = 0;
	php_ignore_value(nice(pri));
	if (errno) {
#ifdef PHP_WIN32
		char *err = php_win_err();
		php_error_docref(NULL, E_WARNING, "%s", err);
		php_win_err_free(err);
#else
		php_error_docref(NULL, E_WARNING, "Only a super user may attempt to increase the priority of a process");
#endif
		RETURN_FALSE;
	}

RETURN_TRUE;
}
/* }}} */
#endif