Makefile revision 298107
1210006Srdivacky# $FreeBSD: head/lib/libmd/Makefile 298107 2016-04-16 07:45:30Z gjb $
2210006Srdivacky
3210006SrdivackyPACKAGE=lib${LIB}
4210006SrdivackyLIB=	md
5210006SrdivackySHLIB_MAJOR= 6
6210006SrdivackySHLIBDIR?= /lib
7210006SrdivackySRCS=	md4c.c md5c.c md4hl.c md5hl.c \
8210006Srdivacky	rmd160c.c rmd160hl.c \
9210006Srdivacky	sha0c.c sha0hl.c sha1c.c sha1hl.c \
10210006Srdivacky	sha256c.c sha256hl.c \
11218893Sdim	sha384hl.c \
12212904Sdim	sha512c.c sha512hl.c
13212904SdimINCS=	md4.h md5.h ripemd.h sha.h sha256.h sha384.h sha512.h
14212904Sdim
15218893SdimWARNS?=	0
16212904Sdim
17210006SrdivackyMAN+=	md4.3 md5.3 ripemd.3 sha.3 sha256.3 sha512.3
18210006SrdivackyMLINKS+=md4.3 MD4Init.3 md4.3 MD4Update.3 md4.3 MD4Final.3
19263508SdimMLINKS+=md4.3 MD4End.3  md4.3 MD4File.3   md4.3 MD4FileChunk.3
20218893SdimMLINKS+=md4.3 MD4Data.3
21210006SrdivackyMLINKS+=md5.3 MD5Init.3 md5.3 MD5Update.3 md5.3 MD5Final.3
22210006SrdivackyMLINKS+=md5.3 MD5End.3  md5.3 MD5File.3   md5.3 MD5FileChunk.3
23210006SrdivackyMLINKS+=md5.3 MD5Data.3
24210006SrdivackyMLINKS+=ripemd.3 RIPEMD160_Init.3  ripemd.3 RIPEMD160_Update.3
25210006SrdivackyMLINKS+=ripemd.3 RIPEMD160_Final.3 ripemd.3 RIPEMD160_Data.3
26249423SdimMLINKS+=ripemd.3 RIPEMD160_End.3   ripemd.3 RIPEMD160_File.3
27249423SdimMLINKS+=ripemd.3 RIPEMD160_FileChunk.3
28249423SdimMLINKS+=sha.3 SHA_Init.3  sha.3 SHA_Update.3  sha.3 SHA_Final.3
29249423SdimMLINKS+=sha.3 SHA_End.3   sha.3 SHA_File.3    sha.3 SHA_FileChunk.3
30249423SdimMLINKS+=sha.3 SHA_Data.3
31249423SdimMLINKS+=sha.3 SHA1_Init.3 sha.3 SHA1_Update.3 sha.3 SHA1_Final.3
32212904SdimMLINKS+=sha.3 SHA1_End.3  sha.3 SHA1_File.3   sha.3 SHA1_FileChunk.3
33212904SdimMLINKS+=sha.3 SHA1_Data.3
34263508SdimMLINKS+=sha256.3 SHA256_Init.3  sha256.3 SHA256_Update.3
35263508SdimMLINKS+=sha256.3 SHA256_Final.3 sha256.3 SHA256_End.3
36210006SrdivackyMLINKS+=sha256.3 SHA256_File.3  sha256.3 SHA256_FileChunk.3
37210006SrdivackyMLINKS+=sha256.3 SHA256_Data.3
38263508SdimMLINKS+=sha512.3 SHA384_Init.3  sha512.3 SHA384_Update.3
39210006SrdivackyMLINKS+=sha512.3 SHA384_Final.3 sha512.3 SHA384_End.3
40210006SrdivackyMLINKS+=sha512.3 SHA384_File.3  sha512.3 SHA384_FileChunk.3
41210006SrdivackyMLINKS+=sha512.3 SHA384_Data.3  sha512.3 sha384.3
42210006SrdivackyMLINKS+=sha512.3 SHA512_Init.3  sha512.3 SHA512_Update.3
43210006SrdivackyMLINKS+=sha512.3 SHA512_Final.3 sha512.3 SHA512_End.3
44249423SdimMLINKS+=sha512.3 SHA512_File.3  sha512.3 SHA512_FileChunk.3
45249423SdimMLINKS+=sha512.3 SHA512_Data.3
46249423SdimCLEANFILES+=	md[245]hl.c md[245].ref md[245].3 mddriver \
47249423Sdim		rmd160.ref rmd160hl.c rmddriver \
48249423Sdim		sha0.ref sha0hl.c sha1.ref sha1hl.c shadriver \
49249423Sdim		sha256.ref sha256hl.c sha384hl.c sha384.ref \
50249423Sdim		sha512.ref sha512hl.c
51226633Sdim
52249423Sdim# Define WEAK_REFS to provide weak aliases for libmd symbols
53226633Sdim#
54249423Sdim# Note that the same sources are also used internally by libcrypt,
55226633Sdim# in which case:
56249423Sdim#   * macros are used to rename symbols to libcrypt internal names
57226633Sdim#   * no weak aliases are generated
58249423SdimCFLAGS+= -I${.CURDIR} -I${.CURDIR}/../../sys/crypto/sha2
59249423SdimCFLAGS+= -DWEAK_REFS
60226633Sdim.PATH: ${.CURDIR}/${MACHINE_ARCH} ${.CURDIR}/../../sys/crypto/sha2
61249423Sdim
62249423Sdim.if exists(${MACHINE_ARCH}/sha.S)
63249423SdimSRCS+=	sha.S
64249423SdimCFLAGS+= -DSHA1_ASM
65249423Sdim.endif
66249423Sdim.if exists(${MACHINE_ARCH}/rmd160.S)
67249423SdimSRCS+=	rmd160.S
68249423SdimCFLAGS+= -DRMD160_ASM
69249423Sdim.endif
70249423Sdim.if exists(${MACHINE_ARCH}/sha.S) || exists(${MACHINE_ARCH}/rmd160.S)
71249423SdimACFLAGS+= -DELF -Wa,--noexecstack
72226633Sdim.endif
73249423Sdim
74226633Sdimmd4hl.c: mdXhl.c
75249423Sdim	(echo '#define LENGTH 16'; \
76226633Sdim		sed -e 's/mdX/md4/g' -e 's/MDX/MD4/g' ${.ALLSRC}) > ${.TARGET}
77251662Sdim
78210006Srdivackymd5hl.c: mdXhl.c
79210006Srdivacky	(echo '#define LENGTH 16'; \
80218893Sdim		sed -e 's/mdX/md5/g' -e 's/MDX/MD5/g' ${.ALLSRC}) > ${.TARGET}
81218893Sdim
82210006Srdivackysha0hl.c: mdXhl.c
83218893Sdim	(echo '#define LENGTH 20'; \
84218893Sdim		sed -e 's/mdX/sha/g' -e 's/MDX/SHA_/g' -e 's/SHA__/SHA_/g' \
85210006Srdivacky		${.ALLSRC}) > ${.TARGET}
86210006Srdivacky
87210006Srdivackysha1hl.c: mdXhl.c
88218893Sdim	(echo '#define LENGTH 20'; \
89218893Sdim		sed -e 's/mdX/sha/g' -e 's/MDX/SHA1_/g' -e 's/SHA1__/SHA1_/g' \
90218893Sdim		${.ALLSRC}) > ${.TARGET}
91210006Srdivacky
92212904Sdimsha256hl.c: mdXhl.c
93218893Sdim	(echo '#define LENGTH 32'; \
94218893Sdim		sed -e 's/mdX/sha256/g' -e 's/MDX/SHA256_/g'	\
95218893Sdim			-e  's/SHA256__/SHA256_/g' \
96212904Sdim		${.ALLSRC}) > ${.TARGET}
97212904Sdim
98218893Sdimsha384hl.c: mdXhl.c
99218893Sdim	(echo '#define LENGTH 48'; \
100212904Sdim		sed -e 's/mdX/sha384/g' -e 's/MDX/SHA384_/g'	\
101212904Sdim			-e  's/SHA384__/SHA384_/g' \
102212904Sdim		${.ALLSRC}) > ${.TARGET}
103218893Sdim
104218893Sdimsha512hl.c: mdXhl.c
105218893Sdim	(echo '#define LENGTH 64'; \
106212904Sdim		sed -e 's/mdX/sha512/g' -e 's/MDX/SHA512_/g'	\
107212904Sdim			-e  's/SHA512__/SHA512_/g' \
108212904Sdim		${.ALLSRC}) > ${.TARGET}
109218893Sdim
110218893Sdimrmd160hl.c: mdXhl.c
111218893Sdim	(echo '#define LENGTH 20'; \
112212904Sdim		sed -e 's/mdX/ripemd/g' -e 's/MDX/RIPEMD160_/g' \
113212904Sdim			-e 's/RIPEMD160__/RIPEMD160_/g' \
114212904Sdim			${.ALLSRC}) > ${.TARGET}
115218893Sdim
116218893Sdim.for i in 2 4 5
117218893Sdimmd${i}.3: ${.CURDIR}/mdX.3
118212904Sdim	sed -e "s/mdX/md${i}/g" -e "s/MDX/MD${i}/g" ${.ALLSRC} > ${.TARGET}
119212904Sdim	cat ${.CURDIR}/md${i}.copyright >> ${.TARGET}
120212904Sdim.endfor
121218893Sdim
122218893Sdimmd4.ref:
123218893Sdim	echo 'MD4 test suite:' > ${.TARGET}
124212904Sdim	@echo 'MD4 ("") = 31d6cfe0d16ae931b73c59d7e0c089c0' >> ${.TARGET}
125212904Sdim	@echo 'MD4 ("a") = bde52cb31de33e46245e05fbdbd6fb24' >> ${.TARGET}
126212904Sdim	@echo 'MD4 ("abc") = a448017aaf21d8525fc10ae87aa6729d' >> ${.TARGET}
127218893Sdim	@echo 'MD4 ("message digest") = d9130a8164549fe818874806e1c7014b' >> ${.TARGET}
128218893Sdim	@echo 'MD4 ("abcdefghijklmnopqrstuvwxyz") = d79e1c308aa5bbcdeea8ed63df412da9' >> ${.TARGET}
129218893Sdim	@echo 'MD4 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =' \
130212904Sdim		'043f8582f241db351ce627e153e7f0e4' >> ${.TARGET}
131212904Sdim	@echo 'MD4 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") =' \
132212904Sdim		'e33b4ddc9c38f2199c3e7b164fcc0536' >> ${.TARGET}
133218893Sdim
134218893Sdimmd5.ref:
135218893Sdim	echo 'MD5 test suite:' > ${.TARGET}
136212904Sdim	@echo 'MD5 ("") = d41d8cd98f00b204e9800998ecf8427e' >> ${.TARGET}
137212904Sdim	@echo 'MD5 ("a") = 0cc175b9c0f1b6a831c399e269772661' >> ${.TARGET}
138218893Sdim	@echo 'MD5 ("abc") = 900150983cd24fb0d6963f7d28e17f72' >> ${.TARGET}
139218893Sdim	@echo 'MD5 ("message digest") = f96b697d7cb7938d525a2f31aaf161d0' >> ${.TARGET}
140212904Sdim	@echo 'MD5 ("abcdefghijklmnopqrstuvwxyz") = c3fcd3d76192e4007dfb496cca67e13b' >> ${.TARGET}
141212904Sdim	@echo 'MD5 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") = d174ab98d277d9f5a5611c2c9f419d9f' >> ${.TARGET}
142212904Sdim	@echo 'MD5 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") = 57edf4a22be3c955ac49da2e2107b67a' >> ${.TARGET}
143218893Sdim
144218893Sdimsha0.ref:
145218893Sdim	echo 'SHA-0 test suite:' > ${.TARGET}
146239462Sdim	@echo 'SHA-0 ("") = f96cea198ad1dd5617ac084a3d92c6107708c0ef' >> ${.TARGET}
147218893Sdim	@echo 'SHA-0 ("abc") = 0164b8a914cd2a5e74c4f7ff082c4d97f1edf880' >> ${.TARGET}
148226633Sdim	@echo 'SHA-0 ("message digest") =' \
149251662Sdim		'c1b0f222d150ebb9aa36a40cafdc8bcbed830b14' >> ${.TARGET}
150218893Sdim	@echo 'SHA-0 ("abcdefghijklmnopqrstuvwxyz") =' \
151218893Sdim		'b40ce07a430cfd3c033039b9fe9afec95dc1bdcd' >> ${.TARGET}
152218893Sdim	@echo 'SHA-0 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =' \
153251662Sdim		'79e966f7a3a990df33e40e3d7f8f18d2caebadfa' >> ${.TARGET}
154210006Srdivacky	@echo 'SHA-0 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") =' \
155210006Srdivacky		'4aa29d14d171522ece47bee8957e35a41f3e9cff' >> ${.TARGET}
156210006Srdivacky
157210006Srdivackysha1.ref:
158226633Sdim	echo 'SHA-1 test suite:' > ${.TARGET}
159226633Sdim	@echo 'SHA-1 ("") = da39a3ee5e6b4b0d3255bfef95601890afd80709' >> ${.TARGET}
160226633Sdim	@echo 'SHA-1 ("abc") = a9993e364706816aba3e25717850c26c9cd0d89d' >> ${.TARGET}
161226633Sdim	@echo 'SHA-1 ("message digest") =' \
162226633Sdim		'c12252ceda8be8994d5fa0290a47231c1d16aae3' >> ${.TARGET}
163226633Sdim	@echo 'SHA-1 ("abcdefghijklmnopqrstuvwxyz") =' \
164226633Sdim		'32d10c7b8cf96570ca04ce37f2a19d84240d3a89' >> ${.TARGET}
165226633Sdim	@echo 'SHA-1 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =' \
166226633Sdim		'761c457bf73b14d27e9e9265c46f4b4dda11f940' >> ${.TARGET}
167226633Sdim	@echo 'SHA-1 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") =' \
168226633Sdim		'50abf5706a150990a08b2c5ea40fa0e585554732' >> ${.TARGET}
169226633Sdim
170226633Sdimsha256.ref:
171226633Sdim	echo 'SHA-256 test suite:' > ${.TARGET}
172226633Sdim	@echo 'SHA-256 ("") = e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855' >> ${.TARGET}
173249423Sdim	@echo 'SHA-256 ("abc") =' \
174226633Sdim		'ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad' >> ${.TARGET}
175226633Sdim	@echo 'SHA-256 ("message digest") =' \
176226633Sdim		'f7846f55cf23e14eebeab5b4e1550cad5b509e3348fbc4efa3a1413d393cb650' >> ${.TARGET}
177226633Sdim	@echo 'SHA-256 ("abcdefghijklmnopqrstuvwxyz") =' \
178226633Sdim		'71c480df93d6ae2f1efad1447c66c9525e316218cf51fc8d9ed832f2daf18b73' >> ${.TARGET}
179226633Sdim	@echo 'SHA-256 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =' \
180226633Sdim		'db4bfcbd4da0cd85a60c3c37d3fbd8805c77f15fc6b1fdfe614ee0a7c8fdb4c0' >> ${.TARGET}
181226633Sdim	@echo 'SHA-256 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") =' \
182226633Sdim		'f371bc4a311f2b009eef952dd83ca80e2b60026c8e935592d0f9c308453c813e' >> ${.TARGET}
183226633Sdim
184226633Sdimsha384.ref:
185226633Sdim	echo 'SHA-384 test suite:' > ${.TARGET}
186226633Sdim	@echo 'SHA-384 ("") =' \
187226633Sdim		'38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274edebfe76f65fbd51ad2f14898b95b' >> ${.TARGET}
188226633Sdim	@echo 'SHA-384 ("abc") =' \
189226633Sdim		'cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed8086072ba1e7cc2358baeca134c825a7' >> ${.TARGET}
190226633Sdim	@echo 'SHA-384 ("message digest") =' \
191226633Sdim		'473ed35167ec1f5d8e550368a3db39be54639f828868e9454c239fc8b52e3c61dbd0d8b4de1390c256dcbb5d5fd99cd5' >> ${.TARGET}
192226633Sdim	@echo 'SHA-384 ("abcdefghijklmnopqrstuvwxyz") =' \
193210006Srdivacky		'feb67349df3db6f5924815d6c3dc133f091809213731fe5c7b5f4999e463479ff2877f5f2936fa63bb43784b12f3ebb4' >> ${.TARGET}
194210006Srdivacky	@echo 'SHA-384 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =' \
195251662Sdim		'1761336e3f7cbfe51deb137f026f89e01a448e3b1fafa64039c1464ee8732f11a5341a6f41e0c202294736ed64db1a84' >> ${.TARGET}
196251662Sdim	@echo 'SHA-384 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") =' \
197251662Sdim		'b12932b0627d1c060942f5447764155655bd4da0c9afa6dd9b9ef53129af1b8fb0195996d2de9ca0df9d821ffee67026' >> ${.TARGET}
198251662Sdim
199251662Sdimsha512.ref:
200210006Srdivacky	echo 'SHA-512 test suite:' > ${.TARGET}
201210006Srdivacky	@echo 'SHA-512 ("") =' \
202251662Sdim		'cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e' >> ${.TARGET}
203251662Sdim	@echo 'SHA-512 ("abc") =' \
204210006Srdivacky		'ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f' >> ${.TARGET}
205210006Srdivacky	@echo 'SHA-512 ("message digest") =' \
206210006Srdivacky		'107dbf389d9e9f71a3a95f6c055b9251bc5268c2be16d6c13492ea45b0199f3309e16455ab1e96118e8a905d5597b72038ddb372a89826046de66687bb420e7c' >> ${.TARGET}
207210006Srdivacky	@echo 'SHA-512 ("abcdefghijklmnopqrstuvwxyz") =' \
208212904Sdim		'4dbff86cc2ca1bae1e16468a05cb9881c97f1753bce3619034898faa1aabe429955a1bf8ec483d7421fe3c1646613a59ed5441fb0f321389f77f48a879c7b1f1' >> ${.TARGET}
209212904Sdim	@echo 'SHA-512 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =' \
210249423Sdim		'1e07be23c26a86ea37ea810c8ec7809352515a970e9253c26f536cfc7a9996c45c8370583e0a78fa4a90041d71a4ceab7423f19c71b9d5a3e01249f0bebd5894' >> ${.TARGET}
211212904Sdim	@echo 'SHA-512 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") =' \
212243830Sdim		'72ec1ef1124a45b047e8b7c75a932195135bb61de24ec0d1914042246e0aec3a2354e093d76f3048b456764346900cb130d2a4fd5dd16abb5e30bcb850dee843' >> ${.TARGET}
213212904Sdim
214212904Sdimrmd160.ref:
215212904Sdim	echo 'RIPEMD160 test suite:' > ${.TARGET}
216212904Sdim	@echo 'RIPEMD160 ("") = 9c1185a5c5e9fc54612808977ee8f548b2258d31' >> ${.TARGET}
217212904Sdim	@echo 'RIPEMD160 ("abc") = 8eb208f7e05d987a9b044a8e98c6b087f15a0bfc' >> ${.TARGET}
218212904Sdim	@echo 'RIPEMD160 ("message digest") =' \
219249423Sdim		'5d0689ef49d2fae572b881b123a85ffa21595f36' >> ${.TARGET}
220212904Sdim	@echo 'RIPEMD160 ("abcdefghijklmnopqrstuvwxyz") =' \
221212904Sdim		'f71c27109c692c1b56bbdceb5b9d2865b3708dbc' >> ${.TARGET}
222212904Sdim	@echo 'RIPEMD160 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =' \
223212904Sdim		'b0e20b6e3116640286ed3a87a5713079b21f5189' >> ${.TARGET}
224212904Sdim	@echo 'RIPEMD160 ("12345678901234567890123456789012345678901234567890123456789012345678901234567890") =' \
225212904Sdim		'9b752e45573d4b39f4dbd3323cab82bf63326bfb' >> ${.TARGET}
226212904Sdim
227212904Sdimtest:	md4.ref md5.ref sha0.ref rmd160.ref sha1.ref sha256.ref sha384.ref \
228212904Sdim		sha512.ref
229218893Sdim	@${ECHO} if any of these test fail, the code produces wrong results
230218893Sdim	@${ECHO} and should NOT be used.
231249423Sdim	${CC} ${CFLAGS} ${LDFLAGS} -DMD=4 -o mddriver ${.CURDIR}/mddriver.c libmd.a
232218893Sdim	./mddriver | cmp md4.ref -
233218893Sdim	@${ECHO} MD4 passed test
234212904Sdim	${CC} ${CFLAGS} ${LDFLAGS} -DMD=5 -o mddriver ${.CURDIR}/mddriver.c libmd.a
235218893Sdim	./mddriver | cmp md5.ref -
236218893Sdim	@${ECHO} MD5 passed test
237212904Sdim	-rm -f mddriver
238218893Sdim	${CC} ${CFLAGS} ${LDFLAGS} -o rmddriver ${.CURDIR}/rmddriver.c libmd.a
239218893Sdim	./rmddriver | cmp rmd160.ref -
240212904Sdim	@${ECHO} RIPEMD160 passed test
241218893Sdim	-rm -f rmddriver
242218893Sdim	${CC} ${CFLAGS} ${LDFLAGS} -DSHA=0 -o shadriver ${.CURDIR}/shadriver.c libmd.a
243212904Sdim	./shadriver | cmp sha0.ref -
244218893Sdim	@${ECHO} SHA-0 passed test
245218893Sdim	${CC} ${CFLAGS} ${LDFLAGS} -DSHA=1 -o shadriver ${.CURDIR}/shadriver.c libmd.a
246218893Sdim	./shadriver | cmp sha1.ref -
247218893Sdim	@${ECHO} SHA-1 passed test
248218893Sdim	${CC} ${CFLAGS} ${LDFLAGS} -DSHA=256 -o shadriver ${.CURDIR}/shadriver.c libmd.a
249218893Sdim	./shadriver | cmp sha256.ref -
250218893Sdim	@${ECHO} SHA-256 passed test
251218893Sdim	${CC} ${CFLAGS} ${LDFLAGS} -DSHA=384 -o shadriver ${.CURDIR}/shadriver.c libmd.a
252218893Sdim	./shadriver | cmp sha384.ref -
253218893Sdim	@${ECHO} SHA-384 passed test
254218893Sdim	${CC} ${CFLAGS} ${LDFLAGS} -DSHA=512 -o shadriver ${.CURDIR}/shadriver.c libmd.a
255218893Sdim	./shadriver | cmp sha512.ref -
256218893Sdim	@${ECHO} SHA-512 passed test
257212904Sdim	-rm -f shadriver
258218893Sdim
259218893Sdim.include <bsd.lib.mk>
260212904Sdim