1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | /* try to be compatible with older perls */ |
5 | #define LZF_STANDALONE 1 |
6 | /* SvPV_nolen() macro first defined in 5.005_55 */ |
6 | #define LZF_STATE_ARG 1 |
7 | /* this is slow, not threadsafe, but works */ |
|
|
8 | #include "patchlevel.h" |
|
|
9 | #if (PATCHLEVEL == 4) || ((PATCHLEVEL == 5) && (SUBVERSION < 55)) |
|
|
10 | static STRLEN nolen_na; |
|
|
11 | # define SvPV_nolen(sv) SvPV ((sv), nolen_na) |
|
|
12 | #endif |
|
|
13 | #if PATCHLEVEL < 6 |
|
|
14 | # define call_sv perl_call_sv |
|
|
15 | #endif |
|
|
16 | |
7 | |
17 | #include "lzf_c.c" |
8 | #include "lzf_c.c" |
18 | #include "lzf_d.c" |
9 | #include "lzf_d.c" |
19 | |
10 | |
20 | /* we re-use the storable header for our purposes */ |
11 | /* we re-use the storable header for our purposes */ |
… | |
… | |
41 | #endif |
32 | #endif |
42 | |
33 | |
43 | static SV * |
34 | static SV * |
44 | compress_sv (SV *data, char cprepend, int uprepend) |
35 | compress_sv (SV *data, char cprepend, int uprepend) |
45 | { |
36 | { |
|
|
37 | LZF_STATE *state; |
46 | STRLEN usize, csize; |
38 | STRLEN usize, csize; |
47 | char *src = (char *)SvPV (data, usize); |
39 | char *src = (char *)SvPVbyte (data, usize); |
48 | |
40 | |
49 | if (usize) |
41 | if (usize) |
50 | { |
42 | { |
51 | SV *ret = NEWSV (0, usize + 1); |
43 | SV *ret = NEWSV (0, usize + 1); |
52 | unsigned char *dst; |
44 | unsigned char *dst; |
… | |
… | |
98 | dst[skip++] = (( usize & 0x3f) | 0x80); |
90 | dst[skip++] = (( usize & 0x3f) | 0x80); |
99 | } |
91 | } |
100 | else |
92 | else |
101 | croak ("compress can only compress up to %ld bytes", 0x7fffffffL); |
93 | croak ("compress can only compress up to %ld bytes", 0x7fffffffL); |
102 | |
94 | |
|
|
95 | New (0, state, 1, LZF_STATE); |
|
|
96 | if (!state) |
|
|
97 | croak ("Compress::LZF unable to allocate memory for compression state"); |
|
|
98 | |
103 | /* 11 bytes is the smallest compressible string */ |
99 | /* 11 bytes is the smallest compressible string */ |
104 | csize = usize < 11 ? 0 : |
100 | csize = usize < 11 ? 0 : |
105 | lzf_compress (src, usize, |
101 | lzf_compress (src, usize, dst + skip, usize - skip, *state); |
106 | dst + skip, |
102 | |
107 | usize - skip); |
103 | Safefree (state); |
108 | |
104 | |
109 | if (csize) |
105 | if (csize) |
110 | { |
106 | { |
111 | SvCUR_set (ret, csize + skip); |
107 | SvCUR_set (ret, csize + skip); |
112 | } |
108 | } |
… | |
… | |
132 | |
128 | |
133 | static SV * |
129 | static SV * |
134 | decompress_sv (SV *data, int skip) |
130 | decompress_sv (SV *data, int skip) |
135 | { |
131 | { |
136 | STRLEN usize, csize; |
132 | STRLEN usize, csize; |
137 | unsigned char *src = (unsigned char *)SvPV (data, csize) + skip; |
133 | unsigned char *src = (unsigned char *)SvPVbyte (data, csize) + skip; |
138 | |
134 | |
139 | if (csize) |
135 | if (csize) |
140 | { |
136 | { |
141 | void *dst; |
137 | void *dst; |
142 | SV *ret; |
138 | SV *ret; |
143 | |
139 | |
144 | csize -= skip; |
140 | csize -= skip; |
145 | |
141 | |
146 | if (src[0]) |
142 | if (src[0]) |
147 | { |
143 | { |
148 | if (!(src[0] & 0x80)) |
144 | if (!(src[0] & 0x80) && csize >= 1) |
149 | { |
145 | { |
150 | csize -= 1; |
146 | csize -= 1; |
151 | usize = *src++ & 0xff; |
147 | usize = *src++ & 0xff; |
152 | } |
148 | } |
153 | else if (!(src[0] & 0x20)) |
149 | else if (!(src[0] & 0x20) && csize >= 2) |
154 | { |
150 | { |
155 | csize -= 2; |
151 | csize -= 2; |
156 | usize = *src++ & 0x1f; |
152 | usize = *src++ & 0x1f; |
157 | usize = (usize << 6) | (*src++ & 0x3f); |
153 | usize = (usize << 6) | (*src++ & 0x3f); |
158 | } |
154 | } |
159 | else if (!(src[0] & 0x10)) |
155 | else if (!(src[0] & 0x10) && csize >= 3) |
160 | { |
156 | { |
161 | csize -= 3; |
157 | csize -= 3; |
162 | usize = *src++ & 0x0f; |
158 | usize = *src++ & 0x0f; |
163 | usize = (usize << 6) | (*src++ & 0x3f); |
159 | usize = (usize << 6) | (*src++ & 0x3f); |
164 | usize = (usize << 6) | (*src++ & 0x3f); |
160 | usize = (usize << 6) | (*src++ & 0x3f); |
165 | } |
161 | } |
166 | else if (!(src[0] & 0x08)) |
162 | else if (!(src[0] & 0x08) && csize >= 4) |
167 | { |
163 | { |
168 | csize -= 4; |
164 | csize -= 4; |
169 | usize = *src++ & 0x07; |
165 | usize = *src++ & 0x07; |
170 | usize = (usize << 6) | (*src++ & 0x3f); |
166 | usize = (usize << 6) | (*src++ & 0x3f); |
171 | usize = (usize << 6) | (*src++ & 0x3f); |
167 | usize = (usize << 6) | (*src++ & 0x3f); |
172 | usize = (usize << 6) | (*src++ & 0x3f); |
168 | usize = (usize << 6) | (*src++ & 0x3f); |
173 | } |
169 | } |
174 | else if (!(src[0] & 0x04)) |
170 | else if (!(src[0] & 0x04) && csize >= 5) |
175 | { |
171 | { |
176 | csize -= 5; |
172 | csize -= 5; |
177 | usize = *src++ & 0x03; |
173 | usize = *src++ & 0x03; |
178 | usize = (usize << 6) | (*src++ & 0x3f); |
174 | usize = (usize << 6) | (*src++ & 0x3f); |
179 | usize = (usize << 6) | (*src++ & 0x3f); |
175 | usize = (usize << 6) | (*src++ & 0x3f); |
180 | usize = (usize << 6) | (*src++ & 0x3f); |
176 | usize = (usize << 6) | (*src++ & 0x3f); |
181 | usize = (usize << 6) | (*src++ & 0x3f); |
177 | usize = (usize << 6) | (*src++ & 0x3f); |
182 | } |
178 | } |
183 | else if (!(src[0] & 0x02)) |
179 | else if (!(src[0] & 0x02) && csize >= 6) |
184 | { |
180 | { |
185 | csize -= 6; |
181 | csize -= 6; |
186 | usize = *src++ & 0x01; |
182 | usize = *src++ & 0x01; |
187 | usize = (usize << 6) | (*src++ & 0x3f); |
183 | usize = (usize << 6) | (*src++ & 0x3f); |
188 | usize = (usize << 6) | (*src++ & 0x3f); |
184 | usize = (usize << 6) | (*src++ & 0x3f); |
189 | usize = (usize << 6) | (*src++ & 0x3f); |
185 | usize = (usize << 6) | (*src++ & 0x3f); |
190 | usize = (usize << 6) | (*src++ & 0x3f); |
186 | usize = (usize << 6) | (*src++ & 0x3f); |
191 | usize = (usize << 6) | (*src++ & 0x3f); |
187 | usize = (usize << 6) | (*src++ & 0x3f); |
192 | } |
188 | } |
193 | else |
189 | else |
|
|
190 | croak ("compressed data corrupted (invalid length)"); |
|
|
191 | |
|
|
192 | if (!usize) |
194 | croak ("compressed data corrupted (invalid length)"); |
193 | croak ("compressed data corrupted (invalid length)"); |
195 | |
194 | |
196 | ret = NEWSV (0, usize); |
195 | ret = NEWSV (0, usize); |
197 | SvPOK_only (ret); |
196 | SvPOK_only (ret); |
198 | dst = SvPVX (ret); |
197 | dst = SvPVX (ret); |
199 | |
198 | |
200 | if (lzf_decompress (src, csize, dst, usize) != usize) |
199 | if (lzf_decompress (src, csize, dst, usize) != usize) |
|
|
200 | { |
|
|
201 | SvREFCNT_dec (ret); |
201 | croak ("compressed data corrupted (size mismatch)", csize, skip, usize); |
202 | croak ("compressed data corrupted (size mismatch)", csize, skip, usize); |
|
|
203 | } |
202 | } |
204 | } |
203 | else |
205 | else |
204 | { |
206 | { |
205 | usize = csize - 1; |
207 | usize = csize - 1; |
206 | ret = NEWSV (0, usize); |
208 | ret = NEWSV (0, usize | 1); |
207 | SvPOK_only (ret); |
209 | SvPOK_only (ret); |
208 | |
210 | |
209 | Move ((void *)(src + 1), (void *)SvPVX (ret), usize, unsigned char); |
211 | Move ((void *)(src + 1), (void *)SvPVX (ret), usize, unsigned char); |
210 | } |
212 | } |
211 | |
213 | |
… | |
… | |
218 | } |
220 | } |
219 | |
221 | |
220 | static void |
222 | static void |
221 | need_storable(void) |
223 | need_storable(void) |
222 | { |
224 | { |
223 | #if PATCHLEVEL < 6 |
|
|
224 | char req[8192]; |
|
|
225 | sprintf (req, "require %s;", SvPV_nolen (serializer_package)); |
|
|
226 | perl_eval_pv (req, 1); |
|
|
227 | #else |
|
|
228 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
225 | load_module (PERL_LOADMOD_NOIMPORT, serializer_package, Nullsv); |
229 | #endif |
|
|
230 | |
226 | |
231 | storable_mstore = GvCV (gv_fetchpv (SvPV_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
227 | storable_mstore = GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mstore ), TRUE, SVt_PVCV)); |
232 | storable_mretrieve = GvCV (gv_fetchpv (SvPV_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
228 | storable_mretrieve = GvCV (gv_fetchpv (SvPVbyte_nolen (serializer_mretrieve), TRUE, SVt_PVCV)); |
233 | } |
229 | } |
234 | |
230 | |
235 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
231 | MODULE = Compress::LZF PACKAGE = Compress::LZF |
236 | |
232 | |
237 | BOOT: |
233 | BOOT: |
… | |
… | |
278 | SvGETMAGIC (sv); |
274 | SvGETMAGIC (sv); |
279 | |
275 | |
280 | if (!SvOK (sv)) |
276 | if (!SvOK (sv)) |
281 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
277 | XPUSHs (sv_2mortal (newSVpvn ("\02", 1))); /* 02 == MAGIC_undef */ |
282 | else if (SvROK (sv) |
278 | else if (SvROK (sv) |
|
|
279 | || SvUTF8 (sv) |
283 | || (SvTYPE(sv) != SVt_IV |
280 | || (SvTYPE(sv) != SVt_IV |
284 | && SvTYPE(sv) != SVt_NV |
281 | && SvTYPE(sv) != SVt_NV |
285 | && SvTYPE(sv) != SVt_PV |
282 | && SvTYPE(sv) != SVt_PV |
286 | && SvTYPE(sv) != SVt_PVIV |
283 | && SvTYPE(sv) != SVt_PVIV |
287 | && SvTYPE(sv) != SVt_PVNV |
284 | && SvTYPE(sv) != SVt_PVNV |
288 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
285 | && SvTYPE(sv) != SVt_PVMG)) /* mstore */ |
289 | { |
286 | { |
290 | int deref = !SvROK (sv); |
287 | int deref = !SvROK (sv); |
291 | |
288 | |
292 | if (!storable_mstore) |
289 | if (!storable_mstore) |
|
|
290 | { |
|
|
291 | PUTBACK; |
293 | need_storable (); |
292 | need_storable (); |
|
|
293 | SPAGAIN; |
|
|
294 | } |
294 | |
295 | |
295 | if (deref) |
296 | if (deref) |
296 | sv = newRV_noinc (sv); |
297 | sv = newRV_noinc (sv); |
297 | |
298 | |
298 | PUSHMARK (SP); |
299 | PUSHMARK (SP); |
… | |
… | |
347 | { |
348 | { |
348 | STRLEN svlen; |
349 | STRLEN svlen; |
349 | int deref = 0; |
350 | int deref = 0; |
350 | |
351 | |
351 | SvGETMAGIC (sv); |
352 | SvGETMAGIC (sv); |
352 | if (SvPOK (sv) && IN_RANGE (SvPV (sv, svlen)[0], MAGIC_LO, MAGIC_HI)) |
353 | if (SvPOK (sv) && IN_RANGE (SvPVbyte (sv, svlen)[0], MAGIC_LO, MAGIC_HI)) |
353 | { |
354 | { |
354 | redo: |
355 | redo: |
355 | |
356 | |
356 | switch (SvPVX (sv)[0]) |
357 | switch (SvPVX (sv)[0]) |
357 | { |
358 | { |
… | |
… | |
366 | croak ("Compress::LZF::sthaw(): invalid data, maybe you need a newer version of Compress::LZF?"); |
367 | croak ("Compress::LZF::sthaw(): invalid data, maybe you need a newer version of Compress::LZF?"); |
367 | |
368 | |
368 | sv_chop (sv, SvPVX (sv) + 2); |
369 | sv_chop (sv, SvPVX (sv) + 2); |
369 | |
370 | |
370 | if (!storable_mstore) |
371 | if (!storable_mstore) |
|
|
372 | { |
|
|
373 | PUTBACK; |
371 | need_storable (); |
374 | need_storable (); |
|
|
375 | SPAGAIN; |
|
|
376 | } |
372 | |
377 | |
373 | PUSHMARK (SP); |
378 | PUSHMARK (SP); |
374 | XPUSHs (sv); |
379 | XPUSHs (sv); |
375 | PUTBACK; |
380 | PUTBACK; |
376 | |
381 | |
… | |
… | |
410 | goto redo; |
415 | goto redo; |
411 | |
416 | |
412 | case MAGIC_R: |
417 | case MAGIC_R: |
413 | handle_MAGIC_R: |
418 | handle_MAGIC_R: |
414 | if (!storable_mstore) |
419 | if (!storable_mstore) |
|
|
420 | { |
|
|
421 | PUTBACK; |
415 | need_storable (); |
422 | need_storable (); |
|
|
423 | SPAGAIN; |
|
|
424 | } |
416 | |
425 | |
417 | PUSHMARK (SP); |
426 | PUSHMARK (SP); |
418 | XPUSHs (sv); |
427 | XPUSHs (sv); |
419 | PUTBACK; |
428 | PUTBACK; |
420 | |
429 | |