progs/pixie.[c1]: Don't replace the existing pixie by default.

[u/mdw/catacomb] / progs / pixie.c

diff --git a/progs/pixie.c b/progs/pixie.c
index d964c0f..1d2be67 100644 (file)
--- a/progs/pixie.c
+++ b/progs/pixie.c
@@ -83,6 +83,7 @@ static unsigned flags = 0;
 
 #define F_SYSLOG 1u
 #define F_FETCH 2u
+#define F_REPLACE 4u
 
 /*----- Event logging -----------------------------------------------------*/
 
@@ -1005,7 +1006,7 @@ static void pix_setup(struct sockaddr_un *sun, size_t sz)
          pxlog("stale socket found; removing it");
        unlink(sun->sun_path);
        close(fd);
-      } else {
+      } else if (flags & F_REPLACE) {
        if (verbose)
          pxlog("server already running; shutting it down");
        if (write(fd, "QUIT\n", 5) < 0) {
@@ -1014,7 +1015,8 @@ static void pix_setup(struct sockaddr_un *sun, size_t sz)
        }
        sleep(1);
        close(fd);
-      }
+      } else
+       die(EXIT_FAILURE, "pixie already running; not starting");
       goto again;
     }
     chmod(sun->sun_path, 0600);
@@ -1188,6 +1190,7 @@ protect important keys.  Options provided:\n\
 -q, --quiet            Emit fewer log messages.\n\
 -v, --version          Emit more log messages.\n\
 -s, --socket=FILE      Name the pixie's socket.\n\
+-r, --replace          Replace existing pixie, if one is running.\n\
 -c, --command=COMMAND  Shell command to read a passphrase.\n\
 -f, --fetch            Fetch passphrases from the terminal.\n\
 -t, --timeout=TIMEOUT  Length of time to retain a passphrase in memory.\n\
@@ -1262,6 +1265,7 @@ int main(int argc, char *argv[])
       { "passphrase",  0,              0,      'P' },
       { "verify-passphrase",   0,      0,      '+' },
       { "socket",      OPTF_ARGREQ,    0,      's' },
+      { "replace",     0,              0,      'r' },
       { "command",     OPTF_ARGREQ,    0,      'c' },
       { "fetch",       0,              0,      'f' },
       { "timeout",     OPTF_ARGREQ,    0,      't' },
@@ -1276,7 +1280,7 @@ int main(int argc, char *argv[])
       { 0,             0,              0,      0 }
     };
 
-    int i = mdwopt(argc, argv, "hVuqvCPs:c:ft:idl", opts, 0, 0, 0);
+    int i = mdwopt(argc, argv, "hVuqvCPs:rc:ft:idl", opts, 0, 0, 0);
     if (i < 0)
       break;
 
@@ -1320,6 +1324,9 @@ int main(int argc, char *argv[])
       case 's':
        path = optarg;
        break;
+      case 'r':
+       flags |= F_REPLACE;
+       break;
       case 't':
        if ((timeout = pixserv_timeout(optarg)) == 0)
          die(1, "bad timeout `%s'", optarg);