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From 1013b0a83aef868e6cd33b2f467b9f886b41e7bc Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Fri, 22 Apr 2022 12:59:56 +0300
Subject: [PATCH 6/6] msend: send a limited number of test packets
For easier integration into a selftest framework, limit the amount of
packets that the program sends via a command-line argument.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
msend.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
--- a/msend.c
+++ b/msend.c
@@ -56,7 +56,7 @@ typedef struct timerhandler_s {
struct sock *to;
char *achOut;
int len;
- int n;
+ int num_pkts;
} timerhandler_t;
timerhandler_t handler_par;
void timerhandler();
@@ -82,6 +82,7 @@ Usage: msend [-g GROUP] [-p PORT] [-joi
the first router will drop the packets! Default: 1\n\
-text \"text\" Specify a string to use as payload in the packets, also\n\
displayed by the mreceive command. Default: empty\n\
+ -c Number of packets to send. Default: send indefinitely\n\
-n Encode -text argument as a number instead of a string.\n\
-v Print version information.\n\
-h Print the command usage.\n\n", VERSION);
@@ -97,6 +98,7 @@ int main(int argc, char *argv[])
struct itimerval times;
sigset_t sigset;
struct sigaction act;
+ int num_pkts = 0;
int ret, i;
if ((argc == 2) && (strcmp(argv[ii], "-v") == 0)) {
@@ -171,6 +173,12 @@ int main(int argc, char *argv[])
ii++;
NUM = 1;
ii++;
+ } else if (strcmp(argv[ii], "-c") == 0) {
+ ii++;
+ if ((ii < argc) && !(strchr(argv[ii], '-'))) {
+ num_pkts = atoi(argv[ii]);
+ ii++;
+ }
} else if (strcmp(argv[ii], "-text") == 0) {
ii++;
if ((ii < argc) && !(strchr(argv[ii], '-'))) {
@@ -255,7 +263,7 @@ int main(int argc, char *argv[])
handler_par.to = &to;
handler_par.achOut = achOut;
handler_par.len = strlen(achOut) + 1;
- handler_par.n = 0;
+ handler_par.num_pkts = num_pkts;
/* now wait for the alarms */
sigemptyset(&sigset);
@@ -264,7 +272,7 @@ int main(int argc, char *argv[])
}
return 0;
} else {
- for (i = 0; i < 10; i++) {
+ for (i = 0; num_pkts && i < num_pkts; i++) {
if (NUM) {
achOut[3] = (unsigned char)(i >> 24);
achOut[2] = (unsigned char)(i >> 16);
@@ -307,6 +315,9 @@ void timerhandler(void)
exit(1);
}
+ if (iCounter == handler_par.num_pkts)
+ exit(1);
+
iCounter++;
return;
}
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