File growisofs-genisoimage.patch of Package dvd+rw-tools

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File growisofs-genisoimage.patch of Package dvd+rw-tools (Revision 0b793c0290111d9933c7d624712808c9)

Currently displaying revision 0b793c0290111d9933c7d624712808c9 , Show latest

--- growisofs.1
+++ growisofs.1
@@ -24,6 +24,10 @@
 other file system, if formatted at all) to all supported DVD media
 types.
 
+\fBgrowisofs\fP in SUSE distribution has been patched to prefer
+\fBgenisoimage\fP over \fBmkisofs\fP. You can
+override this behavior by exporting MKISOFS environment variable.
+
 .SH OPTIONS
 .TP
 .BI \-Z\ /dev/dvd
--- growisofs.c
+++ growisofs.c
@@ -2543,6 +2543,47 @@
     }
 }
 
+
+char *check_mkisofs(char *mkisofs)
+{ pid_t mkisofs_pid;
+  int   fildes[2],ret,n,r;
+  static char ret_str[1024];
+
+    if (pipe (fildes) < 0)
+        perror (":-( unable to create pipe"), exit(FATAL_START(errno));
+
+    if ((mkisofs_pid=fork ()) == (pid_t)-1)
+	perror (":-( unable to fork mkisofs"), exit(FATAL_START(errno));
+    else if (mkisofs_pid == 0)
+    {	dup2  (fildes[1],1);
+	close (fildes[0]);
+	close (fildes[1]);
+	setuid(getuid());
+	execlp (mkisofs,mkisofs,"-version",NULL);
+	exit (FATAL_START(errno));
+    }
+
+    close (fildes[1]);
+
+    n=0;
+
+    while (n < sizeof(ret_str) - 1) {
+	r=read(fildes[0], ret_str, sizeof(ret_str) - n - 1);
+	if (r<=0) break;
+	n+=r;
+    }
+    
+    if (n==0 || r < 0) /* mkisofs must have finished, consume the exit code */
+    {	if ((waitpid (mkisofs_pid,&ret,0)) == -1) {
+	    perror (":-( waitpid failed");
+	}
+	return NULL;
+    }
+
+    ret_str[n]=0;
+    return ret_str;
+}
+
 #elif defined(_WIN32)
 
 void pipe_mkisofs_up (char *mkisofs_argv[],int infd,int outfd,off64_t outoff)
@@ -2723,7 +2764,13 @@
 
 #if defined(__unix) || defined(__unix__)
     env = getenv ("MKISOFS");
-    mkisofs_argv[0] = (env?env:"mkisofs");
+    if (env) 
+	mkisofs_argv[0] = env;
+    else if (check_mkisofs("genisoimage"))
+	mkisofs_argv[0] = "genisoimage";
+    else
+	mkisofs_argv[0] = "mkisofs";
+    
 #elif defined(_WIN32)
     /*
      * On Windows I insist on mkisofs.exe to reside in very same

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File growisofs-genisoimage.patch of Package dvd+rw-tools (Revision 0b793c0290111d9933c7d624712808c9)

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