frame rate calculation fix from Andrew Mace

[swftools.git] / lib / rfxswf.c

diff --git a/lib/rfxswf.c b/lib/rfxswf.c
index 09f89c5..14ec250 100644 (file)
--- a/lib/rfxswf.c
+++ b/lib/rfxswf.c
@@ -35,8 +35,15 @@
 #include <zlib.h>
 #endif // HAVE_ZLIB
 
-#define LAME
+#ifndef RFXSWF_DISABLESOUND
+#ifdef HAVE_LAME
 #include "lame/lame.h"
+#endif
+#endif
+
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
 
 #include "./bitio.h"
 #include "./MD5.h"
@@ -654,7 +661,23 @@ int swf_SetCXForm(TAG * t,CXFORM * cx,U8 alpha)
 void  swf_SetPassword(TAG * t, const char * password)
 {
     /* WARNING: crypt_md5 is not reentrant */
-    char* md5string = crypt_md5(password, "salt"); /* FIXME- get random salt */
+    char salt[3];
+    char* md5string;
+
+#if defined(HAVE_LRAND48) && defined(HAVE_SRAND48) && defined(HAVE_TIME_H) && defined(HAVE_TIME)
+    srand48(time(0));
+    salt[0] = "abcdefghijklmnopqrstuvwxyz0123456789"[lrand48()%36];
+    salt[1] = "abcdefghijklmnopqrstuvwxyz0123456789"[lrand48()%36];
+#else
+    salt[0] = 'l';
+    salt[1] = '8';
+    fprintf(stderr, "rfxswf: Warning- no usable random generator found\n");
+    fprintf(stderr, "Your password will be vulnerable to dictionary attacks\n");
+#endif
+    
+    md5string = crypt_md5(password, salt);
+
+    swf_SetU16(t,0);
     swf_SetString(t, md5string);
 }
 
@@ -665,14 +688,25 @@ int swf_VerifyPassword(TAG * t, const char * password)
     char*md5, *salt;
     int n;
 
+    if(t->len >= 5 && t->pos==0 && 
+       t->data[0] == 0 &&
+       t->data[1] == 0) {
+      swf_GetU16(t);
+    } else {
+      printf("%d %d %d %d\n", t->len, t->pos, t->data[0], t->data[1]);
+    }
+
     md5string1 = swf_GetString(t);
 
-    if(!strncmp(md5string1, "$1$",3 )) {
+    if(strncmp(md5string1, "$1$",3 )) {
+        fprintf(stderr, "rfxswf: no salt in pw string\n");
        return 0;
     }
     x = strchr(md5string1+3, '$');
-    if(!x)
+    if(!x) {
+        fprintf(stderr, "rfxswf: invalid salt format in pw string\n");
        return 0;
+    }
     n = x-(md5string1+3);
     salt = (char*)malloc(n+1);
     memcpy(salt, md5string1+3, n);
@@ -1043,6 +1077,14 @@ void swf_FoldAll(SWF*swf)
     }
 }
 
+void swf_FoldAllTags(TAG*tag)
+{
+    SWF swf;
+    memset(&swf, 0, sizeof(swf));
+    swf.firstTag = tag;
+    swf_FoldAll(&swf);
+}
+
 void swf_UnFoldAll(SWF*swf)
 {
     TAG*tag = swf->firstTag;
@@ -1164,6 +1206,7 @@ int  swf_WriteSWF2(struct writer_t*writer, SWF * swf)     // Writes SWF to file,
   int frameCount=0;
   struct writer_t zwriter;
   int fileSize = 0;
+  int inSprite = 0;
     
   if (!swf) return -1;
 
@@ -1183,10 +1226,12 @@ int  swf_WriteSWF2(struct writer_t*writer, SWF * swf)     // Writes SWF to file,
   t = swf->firstTag;
   frameCount = 0;
 
-  while(t)
-  { len += swf_WriteTag(-1, t);
-    if (t->id==ST_SHOWFRAME) frameCount++;
-    t = swf_NextTag(t);
+  while(t) {
+      len += swf_WriteTag(-1,t);
+      if(t->id == ST_DEFINESPRITE) inSprite++;
+      else if(t->id == ST_END && inSprite) inSprite--;
+      else if(t->id == ST_SHOWFRAME && !inSprite) frameCount++;
+      t = swf_NextTag(t);
   }
   
   { TAG t1;
@@ -1344,6 +1389,7 @@ void swf_FreeTags(SWF * swf)                 // Frees all malloc'ed memory for t
 #include "modules/swfdump.c"
 #include "modules/swfshape.c"
 #include "modules/swftext.c"
+#include "modules/swffont.c"
 #include "modules/swfobject.c"
 #include "modules/swfbutton.c"
 #include "modules/swftools.c"