8899852d45
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>
41 lines
995 B
Text
41 lines
995 B
Text
--- server/main.c.orig Wed Nov 27 01:26:42 1996
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+++ server/main.c Mon Nov 19 20:49:24 2001
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@@ -57,6 +57,7 @@
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#include <errno.h>
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#include <sys/types.h>
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#include <signal.h>
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+#include <pwd.h>
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#include "IR.h"
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#include "net.h"
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@@ -82,6 +83,8 @@
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#ifdef USE_UNIX_SOCKET
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extern struct sockaddr_un unsock;
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#endif
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+ struct passwd *pw;
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+ uid_t binuid;
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/* サーバを子プロセス(デーモン)として起動する */
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parentid = BecomeDaemon(argc, argv);
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@@ -114,9 +117,21 @@
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exit(2);
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}
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+ if ( (pw = getpwnam(cannaOwner)) == NULL ) {
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+ fprintf(stderr, "User %s unknown\n", cannaOwner);
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+ exit(1);
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+ }
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+
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/* エラー出力の切り替え、TTYの切り離し */
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if (parentid) kill(parentid, SIGTERM);
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DetachTTY();
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+
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+ /* Drop root privilege. */
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+ binuid = pw->pw_uid;
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+ if ( setuid(binuid) < 0 ) {
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+ fprintf(stderr, "Unable to setuid to %s(UID: %s).\n", cannaOwner, binuid);
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+ exit(1);
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+ }
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/* ディスパッチループ */
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Dispatch() ;
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