From c708a61a17ff8ba114ca95bb3a3d36b71538a825 Mon Sep 17 00:00:00 2001
From: wens <wens@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Mon, 21 Aug 2006 15:58:46 +0000
Subject: site-wide broadcast

git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@3399 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 util/Makefile    |  2 +-
 util/broadcast.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+), 1 deletion(-)
 create mode 100644 util/broadcast.c

(limited to 'util')

diff --git a/util/Makefile b/util/Makefile
index 63f3552f..b2bff5ce 100644
--- a/util/Makefile
+++ b/util/Makefile
@@ -20,7 +20,7 @@ MBBSD_OBJS= \
 CPROG_WITH_UTIL= \
 	boardlist	BM_money	post		poststat	\
 	jungo		account		birth		deluserfile	\
-	expire		mandex		horoscope	\
+	expire		mandex		horoscope	broadcast	\
 	openvice	parse_news	openticket	topusr		\
 	yearsold	toplazyBM	toplazyBBM	writemoney	\
 	reaper		buildAnnounce	inndBM		mailangel	\
diff --git a/util/broadcast.c b/util/broadcast.c
new file mode 100644
index 00000000..13dab086
--- /dev/null
+++ b/util/broadcast.c
@@ -0,0 +1,73 @@
+/* $Id$ */
+#include "bbs.h"
+#include <getopt.h>
+
+extern SHM_t   *SHM;
+
+int main(int argc, char *argv[])
+{
+    int sleep_time = 5;
+    int num_per_loop = 500;
+
+    int i, j;
+    userinfo_t *uentp;
+    msgque_t msg;
+    time_t now;
+    int *sorted, UTMPnumber; // SHM snapshot
+
+    while ((i = getopt(argc, argv, "t:n:")) != -1)
+	switch (i) {
+	    case 't':
+		sleep_time = atoi(optarg);
+		break;
+	    case 'n':
+		num_per_loop = atoi(optarg);
+		break;
+	}
+
+    if (optind == argc || strlen(argv[optind]) == 0) {
+	fprintf(stderr, "no message to broadcast\n\n");
+	return 1;
+    }
+
+    printf("broadcast \"%s\" ? [y/N]\n", argv[optind]);
+    if (tolower(getchar()) != 'y')
+	return 0;
+
+    attach_SHM();
+    sorted = (int *)malloc(sizeof(int) * USHM_SIZE);
+    memcpy(sorted, SHM->sorted[SHM->currsorted][0], sizeof(int) * USHM_SIZE);
+    UTMPnumber = SHM->UTMPnumber;
+
+    msg.pid = currpid;
+    strlcpy(msg.userid, "¨t²Î¼s¼½", sizeof(msg.userid));
+    snprintf(msg.last_call_in, sizeof(msg.last_call_in), "[¼s¼½]%s", argv[optind]);
+
+    now = time(NULL);
+
+    for (i = 0, j = 1; i < UTMPnumber; ++i, ++j) {
+	if (j == num_per_loop) {
+	    fprintf(stderr, "%5d/%5d\n", i + 1, UTMPnumber);
+	    j = 1;
+	    now = time(NULL);
+	    sleep(sleep_time);
+	}
+
+	// XXX why use sorted list?
+	//     can we just scan uinfo with proper checking?
+	uentp = &SHM->uinfo[sorted[i]];
+	if (uentp->pid && kill(uentp->pid, 0) != -1){
+	    int write_pos = uentp->msgcount;
+	    if (write_pos < (MAX_MSGS - 1)){
+		uentp->msgcount = write_pos + 1;
+		memcpy(&uentp->msgs[write_pos], &msg, sizeof(msg));
+#ifdef NOKILLWATERBALL
+		uentp->wbtime = (time4_t)now;
+#else
+		kill(uentp->pid, SIGUSR2);
+#endif
+	    }
+	}
+    }
+    return 0;
+}
-- 
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