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-rw-r--r--tests/tcpflood.c59
1 files changed, 48 insertions, 11 deletions
diff --git a/tests/tcpflood.c b/tests/tcpflood.c
index 83f0d1ee..254e9fd6 100644
--- a/tests/tcpflood.c
+++ b/tests/tcpflood.c
@@ -95,21 +95,49 @@ int openConnections(void)
sockArray = calloc(numConnections, sizeof(int));
for(i = 0 ; i < numConnections ; ++i) {
if(i % 10 == 0) {
- lenMsg = sprintf(msgBuf, "\retb\b\b\b\b%5.5d", i);
- write(1, msgBuf, lenMsg);
+ printf("\r%5.5d", i);
+ //lenMsg = sprintf(msgBuf, "\r%5.5d", i);
+ //write(1, msgBuf, lenMsg);
}
if(openConn(&(sockArray[i])) != 0) {
printf("error in trying to open connection i=%d\n", i);
return 1;
}
}
- lenMsg = sprintf(msgBuf, "\retb\b\b\b\b%5.5d open connections\n", i);
+ lenMsg = sprintf(msgBuf, "\r%5.5d open connections\n", i);
write(1, msgBuf, lenMsg);
return 0;
}
+/* we also close all connections because otherwise we may get very bad
+ * timing for the syslogd - it may not be able to process all incoming
+ * messages fast enough if we immediately shut down.
+ * TODO: it may be an interesting excercise to handle that situation
+ * at the syslogd level, too
+ * rgerhards, 2009-04-14
+ */
+void closeConnections(void)
+{
+ int i;
+ char msgBuf[128];
+ size_t lenMsg;
+
+ write(1, " close connections", sizeof(" close connections")-1);
+ for(i = 0 ; i < numConnections ; ++i) {
+ if(i % 10 == 0) {
+ lenMsg = sprintf(msgBuf, "\r%5.5d", i);
+ write(1, msgBuf, lenMsg);
+ }
+ close(sockArray[i]);
+ }
+ lenMsg = sprintf(msgBuf, "\r%5.5d close connections\n", i);
+ write(1, msgBuf, lenMsg);
+
+}
+
+
/* send messages to the tcp connections we keep open. We use
* a very basic format that helps identify the message
* (via msgnum:<number>: e.g. msgnum:00000001:). This format is suitable
@@ -123,13 +151,16 @@ int sendMessages(void)
int i;
int socknum;
int lenBuf;
+ int lenSend;
char buf[2048];
char msgBuf[128];
size_t lenMsg;
srand(time(NULL)); /* seed is good enough for our needs */
- lenMsg = sprintf(msgBuf, "\retb\b\b\b\b%5.5d messages sent", 0);
+ printf("Sending %d messages.\n", numMsgsToSend);
+ printf("\r%5.5d messages sent", 0);
+ lenMsg = sprintf(msgBuf, "\r%5.5d/%5.5d messages sent", 0, numMsgsToSend);
write(1, msgBuf, lenMsg);
for(i = 0 ; i < numMsgsToSend ; ++i) {
if(i < numConnections)
@@ -139,18 +170,20 @@ int sendMessages(void)
else
socknum = rand() % numConnections;
lenBuf = sprintf(buf, "<167>Mar 1 01:00:00 172.20.245.8 tag msgnum:%8.8d:\n", i);
- if(send(sockArray[socknum], buf, lenBuf, 0) != lenBuf) {
+ lenSend = send(sockArray[socknum], buf, lenBuf, MSG_NOSIGNAL);
+ if(lenSend != lenBuf) {
+ printf("\r%5.5d\n", i);
+ fflush(stdout);
perror("send test data");
- fprintf(stderr, "send() failed\n");
+ printf("send() failed at socket %d, index %d\n", socknum, i);
+ fflush(stderr);
return(1);
}
if(i % 100 == 0) {
- lenMsg = sprintf(msgBuf, "\retb\b\b\b\b%5.5d", i);
- write(1, msgBuf, lenMsg);
+ printf("\r%5.5d", i);
}
}
- lenMsg = sprintf(msgBuf, "\retb\b\b\b\b%5.5d messages sent\n", i);
- write(1, msgBuf, lenMsg);
+ printf("\r%5.5d messages sent\n", i);
return 0;
}
@@ -219,7 +252,7 @@ int main(int argc, char *argv[])
int ret = 0;
static char buf[1024];
- setvbuf(stdout, _IONBF, buf, 48);
+ setvbuf(stdout, buf, _IONBF, 48);
if(argc != 5) {
printf("Invalid call of tcpflood\n");
@@ -241,5 +274,9 @@ int main(int argc, char *argv[])
printf("error sending messages\n");
exit(1);
}
+
+ //closeConnections();
+ printf("End of tcpflood Run\n");
+
exit(ret);
}