From ee09a2e099e424a926f1fec17ffaa3661e8bb490 Mon Sep 17 00:00:00 2001
From: starnakin <camille@chauvet.pro>
Date: Tue, 18 Nov 2025 08:20:19 -0600
Subject: [PATCH] add: implement -s

---
 src/main.c    | 14 ++++++++------
 src/setting.h |  1 +
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/main.c b/src/main.c
index 3f42aa3..8b14f83 100644
--- a/src/main.c
+++ b/src/main.c
@@ -76,6 +76,7 @@ static int get_setting(char * const *av, struct setting *setting)
         {NULL, "n", OPTION, false},
         {NULL, "W",ARGUMENT, "0"},
         {"ttl", NULL, ARGUMENT, "116"},
+        {NULL, "s", ARGUMENT, "56"},
         {NULL, NULL, 0, NULL},
     };
     char *hostname = parsing(av, parameters);
@@ -90,7 +91,9 @@ static int get_setting(char * const *av, struct setting *setting)
     if (parsing_number(parameters[4].value, 0, 2147483647, &setting->timeout))
         return 1;
     if (parsing_number(parameters[5].value, 0, 255, &setting->ttl))
-        return 1;
+        return 2;
+    if (parsing_number(parameters[6].value, 0, 2147483647, &setting->payload_size))
+        return 3;
     return  0;
 }
 
@@ -102,8 +105,7 @@ int main(int ac, char **av)
     if (get_setting(av + 1, &settings))
         return 1;
 
-    size_t payload_size = 56;
-    size_t packet_size = sizeof(struct icmphdr) + payload_size;
+    size_t packet_size = sizeof(struct icmphdr) + settings.payload_size;
 
     signal(SIGINT, signal_handler);
 
@@ -125,7 +127,7 @@ int main(int ac, char **av)
         return 1;
     }
 
-    char *packet = packet_create(payload_size);
+    char *packet = packet_create(settings.payload_size);
     if (packet == NULL)
     {
         close(sockfd);
@@ -173,11 +175,11 @@ int main(int ac, char **av)
 
         double time_interval = ((stop.tv_sec - start.tv_sec) * 1000 + ((double)stop.tv_usec - (double) start.tv_usec)  / 1000);
         struct icmphdr *hdr = (struct icmphdr *) packet;
-        printf("%zu bytes from %s (%s): icmp_seq=%d, ttl=%u, time=%fms\n", payload_size + sizeof(struct icmphdr), settings.dest.reverse_dns, settings.dest.ipstr, htons(hdr->un.echo.sequence), 116, time_interval);
+        printf("%zu bytes from %s (%s): icmp_seq=%d, ttl=%u, time=%fms\n", packet_size, settings.dest.reverse_dns, settings.dest.ipstr, htons(hdr->un.echo.sequence), 116, time_interval);
         
         sleep(1);
 
-        if (packet_update(packet, payload_size))
+        if (packet_update(packet, settings.payload_size))
         {
             close(sockfd);
             free(buffer);
diff --git a/src/setting.h b/src/setting.h
index 9f04f78..7b0f1a1 100644
--- a/src/setting.h
+++ b/src/setting.h
@@ -13,5 +13,6 @@ struct setting
     bool numeric_only;
     size_t timeout;
     size_t ttl;
+    size_t payload_size;
     struct hostenv dest;
 };