Disable assertions by default.

[nmh] / uip / rcvtty.c

diff --git a/uip/rcvtty.c b/uip/rcvtty.c
index 048407a17869c11d92df61c661916e9caf57881e..356234adf3062a5f68ffb603412a76e233ecc9d2 100644 (file)
--- a/uip/rcvtty.c
+++ b/uip/rcvtty.c
@@ -19,39 +19,36 @@
 #include <h/scansbr.h>
 #include <h/tws.h>
 #include <h/mts.h>
-#include <signal.h>
 #include <fcntl.h>
 
+#ifdef HAVE_GETUTXENT
 #include <utmpx.h>
+#endif /* HAVE_GETUTXENT */
 
 #define        SCANFMT \
 "%2(hour{dtimenow}):%02(min{dtimenow}): %<(size)%5(size) %>%<{encrypted}E%>\
 %<(mymbox{from})%<{to}To:%14(friendly{to})%>%>%<(zero)%17(friendly{from})%>  \
 %{subject}%<{body}<<%{body}>>%>"
 
-static struct swit switches[] = {
-#define        BIFFSW  0
-    { "biff", 0 },
-#define        FORMSW  1
-    { "form formatfile", 0 },
-#define        FMTSW   2
-    { "format string", 5 },
-#define WIDTHSW 3
-    { "width columns", 0 },
-#define NLSW    4
-    { "newline", 0 },
-#define NNLSW   5
-    { "nonewline", 0 },
-#define BELSW  6
-    { "bell", 0 },
-#define        NBELSW  7
-    { "nobell", 0 },
-#define VERSIONSW 8
-    { "version", 0 },
-#define        HELPSW  9
-    { "help", 0 },
-    { NULL, 0 }
-};
+#define RCVTTY_SWITCHES \
+    X("biff", 0, BIFFSW) \
+    X("form formatfile", 0, FORMSW) \
+    X("format string", 5, FMTSW) \
+    X("width columns", 0, WIDTHSW) \
+    X("newline", 0, NLSW) \
+    X("nonewline", 0, NNLSW) \
+    X("bell", 0, BELSW) \
+    X("nobell", 0, NBELSW) \
+    X("version", 0, VERSIONSW) \
+    X("help", 0, HELPSW) \
+
+#define X(sw, minchars, id) id,
+DEFINE_SWITCH_ENUM(RCVTTY);
+#undef X
+
+#define X(sw, minchars, id) { sw, minchars, id },
+DEFINE_SWITCH_ARRAY(RCVTTY, switches);
+#undef X
 
 static jmp_buf myctx;
 static int bell = 1;
@@ -72,7 +69,9 @@ char *getusername(void);
 static void alrmser (int);
 static int message_fd (char **);
 static int header_fd (void);
+#if HAVE_GETUTXENT
 static void alert (char *, int);
+#endif /* HAVE_GETUTXENT */
 
 
 int
@@ -107,10 +106,10 @@ main (int argc, char **argv)
                case HELPSW: 
                    snprintf (buf, sizeof(buf), "%s [command ...]", invo_name);
                    print_help (buf, switches, 1);
-                   done (1);
+                   done (0);
                case VERSIONSW:
                    print_version(invo_name);
-                   done (1);
+                   done (0);
 
                case BIFFSW:
                    biff = 1;
@@ -156,6 +155,7 @@ main (int argc, char **argv)
 
     user = getusername();
 
+#if HAVE_GETUTXENT
     setutxent();
     while ((utp = getutxent()) != NULL) {
         if (utp->ut_type == USER_PROCESS && utp->ut_user[0] != 0
@@ -166,9 +166,12 @@ main (int argc, char **argv)
         }
     }
     endutxent();
+#else
+    NMH_UNUSED (tty);
+    NMH_UNUSED (utp);
+#endif /* HAVE_GETUTXENT */
 
     exit (RCV_MOK);
-    return 0;  /* dead code to satisfy the compiler */
 }
 
 
@@ -185,14 +188,16 @@ static int
 message_fd (char **vec)
 {
     pid_t child_id;
-    int bytes, fd, seconds;
+    int bytes, seconds;
+    /* volatile to prevent "might be clobbered" warning from gcc: */
+    volatile int fd;
     char tmpfil[BUFSIZ];
     struct stat st;
 
     fd = mkstemp (strncpy (tmpfil, "/tmp/rcvttyXXXXX", sizeof(tmpfil)));
     unlink (tmpfil);
 
-    if ((child_id = vfork()) == NOTOK) {
+    if ((child_id = fork()) == NOTOK) {
        /* fork error */
        close (fd);
        return header_fd ();
@@ -235,9 +240,11 @@ message_fd (char **vec)
        _exit (-1);
     closefds (3);
     setpgid ((pid_t) 0, getpid ());    /* put in own process group */
-    execvp (vec[0], vec);
-    _exit (-1);
-    return 1;  /* dead code to satisfy compiler */
+    if (execvp (vec[0], vec) == NOTOK) {
+        _exit (-1);
+    }
+
+    return NOTOK;
 }
 
 
@@ -257,6 +264,7 @@ header_fd (void)
     /* get new format string */
     nfs = new_fs (form, format, SCANFMT);
     scan (stdin, 0, 0, nfs, width, 0, 0, NULL, 0L, 0);
+    scan_finished ();
     if (newline)
         write (fd, "\n\r", 2);
     write (fd, scanl, strlen (scanl));
@@ -267,6 +275,7 @@ header_fd (void)
 }
 
 
+#if HAVE_GETUTXENT
 static void
 alert (char *tty, int md)
 {
@@ -304,4 +313,4 @@ alert (char *tty, int md)
 
     close (td);
 }
-
+#endif /* HAVE_GETUTXENT */