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ping: send the usual number of payload bytes

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This commit is contained in:
K. Lange 2024-02-11 07:41:52 +09:00
parent 335bdf1e72
commit 02fe2bb33c
1 changed files with 2 additions and 2 deletions
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4
apps/ping.c
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@ -22,7 +22,7 @@
#include <netdb.h> #include <netdb.h>
#include <arpa/inet.h> #include <arpa/inet.h>
#define BYTES_TO_SEND 56 #define BYTES_TO_SEND 64
struct ICMP_Header { struct ICMP_Header {
uint8_t type, code; uint8_t type, code;
@ -87,7 +87,7 @@ int main(int argc, char * argv[]) {
dest.sin_family = AF_INET; dest.sin_family = AF_INET;
memcpy(&dest.sin_addr.s_addr, host->h_addr, host->h_length); memcpy(&dest.sin_addr.s_addr, host->h_addr, host->h_length);
printf("PING %s (%s) %d data bytes\n", argv[1], addr, BYTES_TO_SEND); printf("PING %s (%s) %d data bytes\n", argv[1], addr, BYTES_TO_SEND - 8);
struct ICMP_Header * ping = malloc(BYTES_TO_SEND); struct ICMP_Header * ping = malloc(BYTES_TO_SEND);
ping->type = 8; /* request */ ping->type = 8; /* request */