import original 0.9.5 release

[handbrake-jp/handbrake-jp.git] / macosx / main.mm

diff --git a/macosx/main.mm b/macosx/main.mm
index 9927a44..260a8ad 100644 (file)
--- a/macosx/main.mm
+++ b/macosx/main.mm
@@ -5,6 +5,10 @@
    It may be used under the terms of the GNU General Public License. */
 
 #include <Cocoa/Cocoa.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
 #import "hb.h"
 
 void SigHandler( int signal )
@@ -25,8 +29,115 @@ void hb_error_handler( const char *errmsg )
 }
 }
 
+char * str_printf(const char *fmt, ...)
+{
+    /* Guess we need no more than 100 bytes. */
+    int len;
+    va_list ap;
+    int size = 100;
+    char *tmp, *str = NULL;
+
+    str = (char*)malloc(size);
+    while (1) 
+    {
+        /* Try to print in the allocated space. */
+        va_start(ap, fmt);
+        len = vsnprintf(str, size, fmt, ap);
+        va_end(ap);
+
+        /* If that worked, return the string. */
+        if (len > -1 && len < size) {
+            return str;
+        }
+
+        /* Else try again with more space. */
+        if (len > -1)    /* glibc 2.1 */
+            size = len+1; /* precisely what is needed */
+        else           /* glibc 2.0 */
+            size *= 2;  /* twice the old size */
+
+        tmp = (char*)realloc(str, size);
+        if (tmp == NULL) {
+            return str;
+        }
+        str = tmp;
+    }
+}
+
+#define EXTRA_VLC_DYLD_PATH "/Applications/VLC.app/Contents/MacOS/lib"
+#define DEFAULT_DYLD_PATH "/usr/local/lib:/usr/lib"
+
 int main( int argc, const char ** argv )
 {
+    char *dylib_path;
+    int no_exec = 0;
+
+    // Check for flag that prevents exec bomb.  It
+    // incidentally can be used to prevent adding
+    // our modifications to the dyld env vars.
+    if ( argc > 1 && strncmp(argv[1], "-n", 2) == 0 )
+        no_exec = 1;
+
+    if ( !no_exec )
+    {
+        dylib_path = getenv("DYLD_FALLBACK_LIBRARY_PATH");
+        if ( dylib_path == NULL ||
+             strstr( dylib_path, "/Applications/VLC.app/Contents/MacOS/lib" ) == NULL )
+        {
+            char *path = NULL;
+            char *home;
+            int result = -1;
+
+            home = getenv("HOME");
+
+            if ( dylib_path == NULL )
+            {
+                // Set the system default of $HOME/lib:/usr/local/lib:/usr/lib
+                // And add our extra path
+                if ( home != NULL )
+                {
+                    path = str_printf("%s/lib:%s:%s:%s%s", home, 
+                                      DEFAULT_DYLD_PATH, 
+                                      EXTRA_VLC_DYLD_PATH, 
+                                      home, EXTRA_VLC_DYLD_PATH);
+                }
+                else
+                {
+                    path = str_printf("%s:%s", DEFAULT_DYLD_PATH, EXTRA_VLC_DYLD_PATH);
+                }
+                if ( path != NULL )
+                    result = setenv("DYLD_FALLBACK_LIBRARY_PATH", path, 1);
+            }
+            else
+            {
+                // add our extra path
+                if ( home != NULL )
+                {
+                    path = str_printf("%s:%s:%s%s", dylib_path, EXTRA_VLC_DYLD_PATH,
+                                                        home, EXTRA_VLC_DYLD_PATH);
+                }
+                else
+                {
+                    path = str_printf("%s:%s", dylib_path, EXTRA_VLC_DYLD_PATH);
+                }
+                if ( path != NULL )
+                    result = setenv("DYLD_FALLBACK_LIBRARY_PATH", path, 1);
+            }
+            if ( result == 0 )
+            {
+                const char ** new_argv;
+                int i;
+
+                new_argv = (const char**)malloc( (argc + 2) * sizeof(char*) );
+                new_argv[0] = argv[0];
+                new_argv[1] = "-n";
+                for (i = 1; i < argc; i++)
+                    new_argv[i+1] = argv[i];
+                new_argv[i+1] = NULL;
+                execv(new_argv[0], (char* const*)new_argv);
+            }
+        }
+    }
     signal( SIGINT, SigHandler );
     hb_register_error_handler(&hb_error_handler);
     return NSApplicationMain( argc, argv );