Tweaks to make it usable on -current.

Due to changes to signal handling, invoked child process was not able to
send SIGQUIT to the parent.
So instead of installing the binary set{[gu]id(bin), setuid(bin) after
successful invokation.
Reported by:	Takayuki Tamura <ttathome@remus.dti.ne.jp>

1 files changed, 41 insertions, 0 deletions

diff --git a/japanese/Canna/files/patch-ai b/japanese/Canna/files/patch-ai
new file mode 100644
index 000000000000..ca24441c7a54
--- /dev/null
+++ b/japanese/Canna/files/patch-ai
@@ -0,0 +1,41 @@
+--- server/main.c.orig	Wed Nov 27 01:26:42 1996
++++ server/main.c	Mon Nov 19 20:49:24 2001
+@@ -57,6 +57,7 @@
+ #include <errno.h>
+ #include <sys/types.h>
+ #include <signal.h>
++#include <pwd.h>
+ 	
+ #include "IR.h"
+ #include "net.h"
+@@ -82,6 +83,8 @@
+ #ifdef USE_UNIX_SOCKET
+     extern struct sockaddr_un unsock;
+ #endif
++    struct passwd *pw;
++    uid_t binuid;
+ 
+     /* サーバを子プロセス(デーモン)として起動する */
+     parentid = BecomeDaemon(argc, argv);
+@@ -114,9 +117,21 @@
+       exit(2);
+     }
+ 
++    if ( (pw = getpwnam(cannaOwner)) == NULL ) {
++      fprintf(stderr, "User %s unknown\n", cannaOwner);
++      exit(1);
++    }
++
+     /* エラー出力の切り替え、TTYの切り離し */
+     if (parentid) kill(parentid, SIGTERM);
+     DetachTTY();
++
++    /* Drop root privilege. */
++    binuid = pw->pw_uid;
++    if ( setuid(binuid) < 0 ) {
++      fprintf(stderr, "Unable to setuid to %s(UID: %s).\n", cannaOwner, binuid);
++      exit(1);
++    }
+ 
+     /* ディスパッチループ */
+     Dispatch() ;