X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Frfxswf.c;h=278e504ce413322d104786ab2166e101ed795dec;hp=1460c35d4d5f1e427f3288cc24ca939a4b22f0a7;hb=98da96466d3a3d8b56da406f6231b8c524449021;hpb=6cfa6f2326b39d3dee66a27cb77ad5e8fab021a1 diff --git a/lib/rfxswf.c b/lib/rfxswf.c index 1460c35..278e504 100644 --- a/lib/rfxswf.c +++ b/lib/rfxswf.c @@ -46,6 +46,7 @@ #include "./bitio.h" #include "./MD5.h" +#include "./os.h" // internal constants @@ -92,8 +93,9 @@ char* swf_GetString(TAG*t) U8 swf_GetU8(TAG * t) { swf_ResetReadBits(t); #ifdef DEBUG_RFXSWF - if (t->pos>=t->len) + if ((int)t->pos>=(int)t->len) { fprintf(stderr,"GetU8() out of bounds: TagID = %i\n",t->id); + *(int*)0=0; return 0; } #endif @@ -104,7 +106,7 @@ U16 swf_GetU16(TAG * t) { U16 res; swf_ResetReadBits(t); #ifdef DEBUG_RFXSWF - if (t->pos>(t->len-2)) + if ((int)t->pos>((int)t->len-2)) { fprintf(stderr,"GetU16() out of bounds: TagID = %i\n",t->id); return 0; } @@ -118,7 +120,7 @@ U32 swf_GetU32(TAG * t) { U32 res; swf_ResetReadBits(t); #ifdef DEBUG_RFXSWF - if (t->pos>(t->len-4)) + if ((int)t->pos>((int)t->len-4)) { fprintf(stderr,"GetU32() out of bounds: TagID = %i\n",t->id); return 0; } @@ -139,7 +141,7 @@ int swf_GetBlock(TAG * t,U8 * b,int l) return l; } -int swf_SetBlock(TAG * t,U8 * b,int l) +int swf_SetBlock(TAG * t,const U8 * b,int l) // Appends Block to the end of Tagdata, returns size { U32 newlen = t->len + l; swf_ResetWriteBits(t); @@ -176,7 +178,9 @@ int swf_SetU16(TAG * t,U16 v) void swf_SetS16(TAG * t,int v) { if(v>32767 || v<-32768) { + #ifdef DEBUG_RFXSWF fprintf(stderr, "Warning: S16 overflow: %d\n", v); + #endif } swf_SetU16(t, (S16)v); } @@ -203,17 +207,22 @@ U32 swf_GetBits(TAG * t,int nbits) if (!t->readBit) t->readBit = 0x80; while (nbits) { res<<=1; +#ifdef DEBUG_RFXSWF + if (t->pos>=t->len) + { fprintf(stderr,"GetBits() out of bounds: TagID = %i, pos=%d, len=%d\n",t->id, t->pos, t->len); + int i,m=t->len>10?10:t->len; + for(i=-1;idata[i]); + } + fprintf(stderr, "\n"); + return res; + } +#endif if (t->data[t->pos]&t->readBit) res|=1; t->readBit>>=1; nbits--; if (!t->readBit) { if (nbits) t->readBit = 0x80; - #ifdef DEBUG_RFXSWF - if (t->pos>=t->len) - { fprintf(stderr,"GetBits() out of bounds: TagID = %i\n",t->id); - return res; - } - #endif t->pos++; } } @@ -261,7 +270,7 @@ double swf_GetFixed(TAG * t) } void swf_SetFixed(TAG * t, double f) { - U16 fr = (U16)(f-(int)f)*65536; + U16 fr = (U16)((f-(int)f)*65536); swf_SetU16(t, fr); swf_SetU16(t, (U16)f - (f<0 && fr!=0)); } @@ -273,11 +282,280 @@ float swf_GetFixed8(TAG * t) } void swf_SetFixed8(TAG * t, float f) { - U8 fr = (U8)(f-(int)f)*256; + U8 fr = (U8)((f-(int)f)*256); swf_SetU8(t, fr); swf_SetU8(t, (U8)f - (f<0 && fr!=0)); } +U32 swf_GetU30(TAG*tag) +{ + U32 shift = 0; + U32 s = 0; + int nr=0; + while(1) { + U8 b = swf_GetU8(tag); + nr++; + s|=(b&127)<=32) + break; + } + /*int nr2= swf_SetU30(0, s); + if(nr!=nr2) { + printf("Unsigned value %d stored in %d bytes, I'd store it in %d bytes\n", s, nr, nr2); + }*/ + return s; +} + +int swf_SetU30(TAG*tag, U32 u) +{ + int nr = 0; + do { + if(tag) + swf_SetU8(tag, (u&~0x7f?0x80:0) | (u&0x7F)); + u>>=7; + nr++; + } while(u); + return nr; +} + +void swf_SetABCU32(TAG*tag, U32 u) +{ + do { + swf_SetU8(tag, (u&~0x7f?0x80:0) | (u&0x7F)); + u>>=7; + } while(u); +} +U32 swf_GetABCU32(TAG*tag) +{ + return swf_GetU30(tag); +} +void swf_SetABCS32(TAG*tag, S32 v) +{ + swf_SetABCU32(tag, v); +} +S32 swf_GetABCS32(TAG*tag) +{ + return swf_GetABCU32(tag); +} + +#if 0 + +/*The AVM2 spec is just plain wrong, claiming that S32 values are sign +extended. They're not. +This wastes up to 4 bytes for every negative value. */ + +void swf_SetABCS32(TAG*tag, S32 s) +{ + printf("write S32: %d\n", s); + S32 neg = s<0?-1:0; + U8 sign = s<0?0x40:0; + while(1) { + U8 val = s&0x7f; + U8 vsign = s&0x40; + s>>=7; + neg>>=7; + if(s==neg && vsign==sign) { + /* if the value we now write has the same sign as s + and all the remaining bits are equal to the sign of s + too, stop writing */ + swf_SetU8(tag, val); + printf("put %02x\n", val); + break; + } else { + swf_SetU8(tag, 0x80 | val); + printf("put %02x\n", 0x80|val); + } + }; +} +int swf_GetS30(TAG*tag) +{ + U32 shift = 0; + U32 s = 0; + int nr=0; + while(1) { + U8 b = swf_GetU8(tag); + nr++; + nt i,m=t->len>10?10:t->len; + for(i=0;idata[i]); + } + fprintf(stderr, "\n"); + s|=(b&127)<=32) { + if(b&64) { + if(shift<32) + s|=0xffffffff<>10)&0x1f; + U16 m = f1&0x3ff; + /* find highest bit in mantissa */ + int h=0; + while(!(m&0x400)) { + m<<=1; + h++; + } + m&=0x3ff; + e -= h; + e += 0x6f; + + f2.u = (f1&0x8000)<<16; //sign + f2.u |= e<<23; //exponent + f2.u |= m<<13; //mantissa + return *(float*)&f2; +} + +void swf_SetF16(TAG * t, float f) +{ + union { + U32 u; + float f; + } v; + v.f = f; + + U16 result = (v.u>>16)&0x8000; //sign + int exp = ((v.u>>23)&0xff)-0x7f+0x10; + U16 m = (v.u>>13)&0x3ff; + //fprintf(stderr, "%f: %04x sign, %d exp, %04x mantissa\n", f, result, exp, m); + if(exp<-10) { + // underflow (clamp to 0.0) + exp = 0; + m = 0; + } else if(exp<0) { + // partial underflow- strip some bits + m = (m|0x400)>>-exp; + exp = 0; + } else if(exp>=32) { + exp = 31; + m = 0x3ff; + fprintf(stderr, "Exponent overflow in FLOAT16 encoding\n"); + } else { + exp++; + m = (m>>1)|0x200; + } + result |= exp<<10; + result |= m; + swf_SetU16(t, result); +} + +float F16toFloat(U16 x) +{ + TAG t; + t.data = (void*)&x; + t.readBit = 0; + t.pos = 0; + t.len = 2; + return swf_GetF16(&t); +} + +float floatToF16(float f) +{ + U16 u = 0; + TAG t; + t.data = (void*)&u; + t.len = 0; + t.memsize = 2; + t.writeBit = 0; + swf_SetF16(&t, f); + return u; +} + +double swf_GetD64(TAG*tag) +{ + /* FIXME: this is not big-endian compatible */ + double value = *(double*)&tag->data[tag->pos]; + swf_GetU32(tag); + swf_GetU32(tag); + return value; +} +int swf_SetD64(TAG*tag, double v) +{ + /* FIXME: this is not big-endian compatible */ + swf_SetU32(tag, ((U32*)&v)[0]); + swf_SetU32(tag, ((U32*)&v)[1]); + return 8; +} +int swf_GetU24(TAG*tag) +{ + int b1 = swf_GetU8(tag); + int b2 = swf_GetU8(tag); + int b3 = swf_GetU8(tag); + return b3<<16|b2<<8|b1; +} +int swf_GetS24(TAG*tag) +{ + int b1 = swf_GetU8(tag); + int b2 = swf_GetU8(tag); + int b3 = swf_GetU8(tag); + if(b3&0x80) { + return -1-((b3<<16|b2<<8|b1)^0xffffff); + } else { + return b3<<16|b2<<8|b1; + } +} +int swf_SetU24(TAG*tag, U32 v) +{ + if(tag) { + if(v&0xff000000) + fprintf(stderr, "Error: Overflow in swf_SetU24()\n"); + swf_SetU8(tag, v); + swf_SetU8(tag, v>>8); + swf_SetU8(tag, v>>16); + } + return 3; +} +int swf_SetS24(TAG*tag, U32 v) +{ + if(tag) { + if(!(v&0xff000000)) + return swf_SetU24(tag, v); + if((v&0xff000000)!=0xff000000) { + fprintf(stderr, "Error: Overflow in swf_SetS24()\n"); + } + swf_SetU8(tag, v); + swf_SetU8(tag, v>>8); + swf_SetU8(tag, v>>16); + } + return 3; +} + + int swf_SetRGB(TAG * t,RGBA * col) { if (!t) return -1; if (col) @@ -441,7 +719,9 @@ int swf_SetRect(TAG * t,SRECT * r) nbits = swf_CountBits(r->ymin,nbits); nbits = swf_CountBits(r->ymax,nbits); if(nbits>=32) { + #ifdef DEBUG_RFXSWF fprintf(stderr, "rfxswf: Warning: num_bits overflow in swf_SetRect\n"); + #endif nbits=31; } @@ -454,6 +734,20 @@ int swf_SetRect(TAG * t,SRECT * r) return 0; } +SRECT swf_ClipRect(SRECT border, SRECT r) +{ + if(r.xmax > border.xmax) r.xmax = border.xmax; + if(r.ymax > border.ymax) r.ymax = border.ymax; + if(r.xmax < border.xmin) r.xmax = border.xmin; + if(r.ymax < border.ymin) r.ymax = border.ymin; + + if(r.xmin > border.xmax) r.xmin = border.xmax; + if(r.ymin > border.ymax) r.ymin = border.ymax; + if(r.xmin < border.xmin) r.xmin = border.xmin; + if(r.ymin < border.ymin) r.ymin = border.ymin; + return r; +} + void swf_ExpandRect(SRECT*src, SPOINT add) { if((src->xmin | src->ymin | src->xmax | src->ymax)==0) { @@ -593,7 +887,9 @@ int swf_SetMatrix(TAG * t,MATRIX * m) nbits = swf_CountBits(m->sy,nbits); if(nbits>=32) { /* TODO: happens on AMD64 systems for normal values? */ + #ifdef DEBUG_RFXSWF fprintf(stderr,"rfxswf: Error: matrix values too large\n"); + #endif nbits = 31; } swf_SetBits(t,nbits,5); @@ -607,7 +903,9 @@ int swf_SetMatrix(TAG * t,MATRIX * m) nbits = swf_CountBits(m->r0,0); nbits = swf_CountBits(m->r1,nbits); if(nbits>=32) { + #ifdef DEBUG_RFXSWF fprintf(stderr,"rfxswf: Error: matrix values too large\n"); + #endif nbits = 31; } swf_SetBits(t,nbits,5); @@ -618,7 +916,9 @@ int swf_SetMatrix(TAG * t,MATRIX * m) nbits = swf_CountBits(m->tx,0); nbits = swf_CountBits(m->ty,nbits); if(nbits>=32) { + #ifdef DEBUG_RFXSWF fprintf(stderr,"rfxswf: Error: matrix values too large\n"); + #endif nbits = 31; } swf_SetBits(t,nbits,5); @@ -747,7 +1047,16 @@ void swf_SetPassword(TAG * t, const char * password) md5string = crypt_md5(password, salt); swf_SetU16(t,0); - swf_SetString(t, (U8*)md5string); + swf_SetString(t, md5string); +} + +void swf_SetString(TAG*t, const char* s) +{ + if(!s) { + swf_SetU8(t, 0); + } else { + swf_SetBlock(t,(U8*)s,strlen(s)+1); + } } int swf_VerifyPassword(TAG * t, const char * password) @@ -849,15 +1158,18 @@ TAG* swf_CopyTag(TAG*tag, TAG*to_copy) return tag; } -int swf_DeleteTag(TAG * t) -{ if (!t) return -1; +TAG* swf_DeleteTag(SWF*swf, TAG * t) +{ + TAG*next = t->next; + if (swf && swf->firstTag==t) + swf->firstTag = t->next; if (t->prev) t->prev->next = t->next; if (t->next) t->next->prev = t->prev; if (t->data) rfx_free(t->data); rfx_free(t); - return 0; + return next; } TAG * swf_ReadTag(reader_t*reader, TAG * prev) @@ -874,8 +1186,7 @@ TAG * swf_ReadTag(reader_t*reader, TAG * prev) if (len==0x3f) { - if (reader->read(reader, &len, 4) != 4) return NULL; - len = SWAP32(len); + len = reader_readU32(reader); } if (id==ST_DEFINESPRITE) len = 2*sizeof(U16); @@ -890,7 +1201,9 @@ TAG * swf_ReadTag(reader_t*reader, TAG * prev) { t->data = (U8*)rfx_alloc(t->len); t->memsize = t->len; if (reader->read(reader, t->data, t->len) != t->len) { + #ifdef DEBUG_RFXSWF fprintf(stderr, "rfxswf: Warning: Short read (tagid %d). File truncated?\n", t->id); + #endif free(t->data);t->data=0; free(t); return NULL; @@ -924,7 +1237,12 @@ int swf_WriteTag2(writer_t*writer, TAG * t) t->id!=ST_DEFINEBITSJPEG&&t->id!=ST_DEFINEBITSJPEG2&&t->id!=ST_DEFINEBITSJPEG3); if (writer) - { if (short_tag) + { +#ifdef MEASURE + int oldpos = writer->pos; +#endif + + if (short_tag) { raw[0] = SWAP16(len|((t->id&0x3ff)<<6)); if (writer->write(writer,raw,2)!=2) { @@ -945,14 +1263,7 @@ int swf_WriteTag2(writer_t*writer, TAG * t) return -1; } - len = SWAP32(len); - if (writer->write(writer,&len,4)!=4) - { - #ifdef DEBUG_RFXSWF - fprintf(stderr,"WriteTag() failed: Long Header (2).\n"); - #endif - return -1; - } + writer_writeU32(writer, len); } if (t->data) @@ -967,6 +1278,11 @@ int swf_WriteTag2(writer_t*writer, TAG * t) #ifdef DEBUG_RFXSWF else if (t->len) fprintf(stderr,"WriteTag(): Tag Data Error, id=%i\n",t->id); #endif + +#ifdef MEASURE + writer->flush(writer); + printf("TAG %s costs %d bytes\n", swf_TagGetName(t), writer->pos-oldpos); +#endif } return t->len+(short_tag?2:6); @@ -1059,7 +1375,9 @@ void swf_FoldSprite(TAG * t) if(t->id!=ST_DEFINESPRITE) return; if(!t->len) { + #ifdef DEBUG_RFXSWF fprintf(stderr, "Error: Sprite has no ID!"); + #endif return; } if(t->len>4) { @@ -1115,7 +1433,7 @@ void swf_FoldSprite(TAG * t) if(t->id == ST_END) level--; t = swf_NextTag(t); - swf_DeleteTag(tmp); + swf_DeleteTag(0, tmp); } while (t && level); if(level) @@ -1246,15 +1564,36 @@ int swf_ReadSWF2(reader_t*reader, SWF * swf) // Reads SWF to memory (malloc'ed swf->frameCount = SWAP16(swf->frameCount); /* read tags and connect to list */ + t1.next = 0; t = &t1; - while (t) t = swf_ReadTag(reader,t); + while (t) { + t = swf_ReadTag(reader,t); + if(t && t->id == ST_FILEATTRIBUTES) { + swf->fileAttributes = swf_GetU32(t); + swf_ResetReadBits(t); + } + } swf->firstTag = t1.next; - t1.next->prev = NULL; + if(t1.next) + t1.next->prev = NULL; } return reader->pos; } +SWF* swf_OpenSWF(char*filename) +{ + int fi = open(filename, O_RDONLY|O_BINARY); + if(fi<0) { + fprintf(stderr, "Failed to open %s\n", filename); + return 0; + } + SWF* swf = rfx_alloc(sizeof(SWF)); + swf_ReadSWF(fi, swf); + close(fi); + return swf; +} + int swf_ReadSWF(int handle, SWF * swf) { reader_t reader; @@ -1262,6 +1601,91 @@ int swf_ReadSWF(int handle, SWF * swf) return swf_ReadSWF2(&reader, swf); } +void swf_ReadABCfile(char*filename, SWF*swf) +{ + memset(swf, 0, sizeof(SWF)); + swf->fileVersion=9; + swf->fileAttributes=FILEATTRIBUTE_AS3; //as3 + TAG*tag = swf->firstTag = swf_InsertTag(0, ST_RAWABC); + memfile_t*file = memfile_open(filename); + swf_SetBlock(tag, file->data, file->len); + memfile_close(file); +} + +int no_extra_tags = 0; + +int WriteExtraTags(SWF*swf, writer_t*writer) +{ + TAG*t = swf->firstTag; + TAG* has_fileattributes=0; + int has_scenedescription=0; + int has_version_8_action=0; + int has_version_9_action=0; + int len = 0; + while(t) { + if(t->id == ST_FILEATTRIBUTES) + has_fileattributes = t; + if(t->id == ST_SCENEDESCRIPTION) + has_scenedescription = 1; + if(t->id == ST_DOABC) + has_version_9_action=1; + /* FIXME: this doesn't yet find actionscript in buttons */ + if(t->id == ST_DOACTION || t->id == ST_DOINITACTION) + has_version_8_action=1; + if(t->id == ST_PLACEOBJECT2 && t->len && (t->data[0]&0x80)) + has_version_8_action=1; + t = t->next; + } + if(has_version_8_action && has_version_9_action) { + fprintf(stderr, "Warning: File contains both flash 8 and flash 9 actionscript\n"); + } + + if(swf->fileVersion >= 9) { + if(!has_fileattributes) { + U32 flags = swf->fileAttributes|FILEATTRIBUTE_AS3; // 16 = has symbolclass tag | 8 = actionscript3 | 1 = usenetwork + if(has_version_8_action && !has_version_9_action) + flags &= ~FILEATTRIBUTE_AS3; + TAG*fileattrib = swf_InsertTag(0, ST_FILEATTRIBUTES); + swf_SetU32(fileattrib, flags); + if(writer) { + if(swf_WriteTag2(writer, fileattrib)<0) + return -1; + } else { + len += swf_WriteTag(-1,fileattrib); + } + swf_DeleteTag(0, fileattrib); + } else { + if(swf->fileAttributes) { + /* if we're writing a file out again where we might have possible + modified the fileattributes in the header, adjust the tag data */ + TAG*tt = swf_CopyTag(0,has_fileattributes); + U32 flags = swf_GetU32(tt) | swf->fileAttributes; + swf_ResetTag(tt, tt->id); + swf_SetU32(tt, flags); + if(swf_WriteTag2(writer, has_fileattributes)<0) return -1; + swf_DeleteTag(0, tt); + } else { + if(swf_WriteTag2(writer, has_fileattributes)<0) + return -1; + } + } + if(0 && !has_scenedescription) { + TAG*scene = swf_InsertTag(0, ST_SCENEDESCRIPTION); + swf_SetU16(scene, 1); + swf_SetString(scene, "Scene 1"); + swf_SetU8(scene, 0); + if(writer) { + if(swf_WriteTag2(writer, scene)<0) + return -1; + } else { + len += swf_WriteTag(-1,scene); + } + swf_DeleteTag(0, scene); + } + } + return len; +} + int swf_WriteSWF2(writer_t*writer, SWF * swf) // Writes SWF to file, returns length or <0 if fails { U32 len; TAG * t; @@ -1269,48 +1693,14 @@ int swf_WriteSWF2(writer_t*writer, SWF * swf) // Writes SWF to file, return writer_t zwriter; int fileSize = 0; int inSprite = 0; - int writer_lastpos = 0; int ret; + writer_t*original_writer = writer; + int writer_lastpos = 0; if (!swf) return -1; if (!writer) return -1; // the caller should provide a nullwriter, not 0, for querying SWF size - if(writer) writer_lastpos = writer->pos; - - // Insert REFLEX Tag - -#ifdef INSERT_RFX_TAG - - if ((swf->firstTag && swf->firstTag->id != ST_REFLEX) && - (!swf->firstTag->next || swf->firstTag->next->id != ST_REFLEX)) - { - swf_SetBlock(swf_InsertTagBefore(swf, swf->firstTag,ST_REFLEX),(U8*)"rfx",3); - } - -#endif // INSERT_RFX_TAG - - if(swf->fileVersion >= 9) { - if ((!swf->firstTag || swf->firstTag->id != ST_SCENEDESCRIPTION) && - (!swf->firstTag || - !swf->firstTag->next || swf->firstTag->next->id != ST_SCENEDESCRIPTION) && - (!swf->firstTag || - !swf->firstTag->next || - !swf->firstTag->next->next || swf->firstTag->next->next->id != ST_SCENEDESCRIPTION)) - { - TAG*scene = swf_InsertTagBefore(swf, swf->firstTag,ST_SCENEDESCRIPTION); - swf_SetU16(scene, 1); - swf_SetString(scene, (U8*)"Scene 1"); - swf_SetU8(scene, 0); - } - } - - if(swf->fileVersion >= 9) { - if (swf->firstTag && swf->firstTag->id != ST_FILEATTRIBUTES) - { - U32 flags = 0x8; // | 128 = usenetwork, | 16 = Actionscript3 | 8 = hasmetadata - swf_SetU32(swf_InsertTagBefore(swf, swf->firstTag,ST_FILEATTRIBUTES),flags); - } - } + if(original_writer) writer_lastpos = original_writer->pos; // Count Frames + File Size @@ -1318,6 +1708,9 @@ int swf_WriteSWF2(writer_t*writer, SWF * swf) // Writes SWF to file, return t = swf->firstTag; frameCount = 0; + if(swf->firstTag && !no_extra_tags) { + len += WriteExtraTags(swf, 0); + } while(t) { len += swf_WriteTag(-1,t); if(t->id == ST_DEFINESPRITE && !swf_IsFolded(t)) inSprite++; @@ -1399,15 +1792,22 @@ int swf_WriteSWF2(writer_t*writer, SWF * swf) // Writes SWF to file, return return -1; } + if(swf->firstTag && !no_extra_tags) { + WriteExtraTags(swf, writer); + } t = swf->firstTag; - while (t) - { if (swf_WriteTag2(writer, t)<0) return -1; - t = swf_NextTag(t); + + while (t) { + if(no_extra_tags || t->id != ST_FILEATTRIBUTES) { + if(swf_WriteTag2(writer, t)<0) + return -1; + } + t = t->next; } if(swf->compressed==1 || (swf->compressed==0 && swf->fileVersion>=6) || swf->compressed==8) { if(swf->compressed != 8) { zwriter.finish(&zwriter); - return writer->pos - writer_lastpos; + return original_writer->pos - writer_lastpos; } return (int)fileSize; } else { @@ -1416,6 +1816,21 @@ int swf_WriteSWF2(writer_t*writer, SWF * swf) // Writes SWF to file, return } } +int swf_SaveSWF(SWF * swf, char*filename) +{ + int fi = open(filename, O_BINARY|O_RDWR|O_TRUNC|O_CREAT, 0777); + if(fi<0) { + perror(filename); + return 0; + } + if(swf_WriteSWF(fi, swf)<0) { + fprintf(stderr, "Unable to write output file: %s\n", filename); + return 0; + } + close(fi); + return 1; +} + int swf_WriteSWF(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails { writer_t writer; @@ -1458,7 +1873,7 @@ int swf_WriteCGI(SWF * swf) sprintf(s,"Content-type: application/x-shockwave-flash\n" "Accept-Ranges: bytes\n" - "Content-Length: %lu\n" + "Content-Length: %d\n" "Expires: Thu, 13 Apr 2000 23:59:59 GMT\n" "\n",len);