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* Fixed the application to actually take the host argument into account, sigh.

Browse Source 
* Cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37686 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2010-07-22 12:09:44 +00:00
parent 6fc498dafd
commit 2baeb60077
1 changed files with 48 additions and 30 deletions
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src/tests/kits/net/icmp/udp_unreachable.cpp
+48 -30
View File
@@ -8,6 +8,7 @@
#include <errno.h> #include <errno.h>
#include <netdb.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@@ -16,50 +17,67 @@
#include <unistd.h> #include <unistd.h>
#define MAXLEN 4096 #define MAX_LENGTH 4096
extern const char* __progname;
int int
main(int argc, char **argv) main(int argc, char** argv)
{ {
int sockfd, status; if (argc < 2) {
char *str = "Hello"; fprintf(stderr, "Usage: %s <host> [<port>]\n"
char buf[MAXLEN]; "Sends a UDP datagram to the specified target.\n"
struct sockaddr_in serverAddr; "<port> defaults to 9999.\n", __progname);
return 1;
if (argc != 3) {
fprintf(stderr, "Usage: %s <ip-address> <port>\n", argv[0]);
exit(1);
} }
struct hostent* host = gethostbyname(argv[1]);
if (host == NULL) {
perror("gethostbyname");
return 1;
}
uint16_t port = 9999;
if (argc > 2)
port = atol(argv[2]);
struct sockaddr_in serverAddr;
memset(&serverAddr, 0, sizeof(struct sockaddr_in)); memset(&serverAddr, 0, sizeof(struct sockaddr_in));
serverAddr.sin_family = AF_INET; serverAddr.sin_family = AF_INET;
serverAddr.sin_port = htons(atoi(argv[2])); serverAddr.sin_port = htons(port);
serverAddr.sin_addr = *((struct in_addr*)host->h_addr);
sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); int sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
// We need to call connect() to receive async ICMP errors // We need to call connect() to receive async ICMP errors
if (connect(sockfd, (struct sockaddr*)&serverAddr, if (connect(sockfd, (struct sockaddr*)&serverAddr,
sizeof(struct sockaddr_in)) < 0) { sizeof(struct sockaddr_in)) < 0) {
fprintf(stderr, "Calling connect() on UDP socket failed\n"); fprintf(stderr, "Calling connect() on UDP socket failed: %s\n",
exit(1); strerror(errno));
return 1;
} }
if ((status = write(sockfd, str, strlen(str))) < 0) {
int e = errno; const char* string = "Hello";
fprintf(stderr, "UDP send failed. Status: %d\n", status); ssize_t bytes = write(sockfd, string, strlen(string));
fprintf(stderr, "Error: %s\n", strerror(e)); if (bytes < 0) {
exit(1); fprintf(stderr, "UDP send failed: %s\n", strerror(errno));
return 1;
}
printf("%zd bytes sent to remote server.\n", bytes);
char buffer[MAX_LENGTH];
bytes = read(sockfd, buffer, MAX_LENGTH);
if (bytes > 0) {
printf("Received %zd bytes from remote host\n", bytes);
printf("%s\n", buffer);
} else { } else {
printf("%d bytes sent to remote server.\n", status); // We are expecting this
if ((status = read(sockfd, buf, MAXLEN)) > 0) { printf("Error: %s\n", strerror(errno));
printf("Received %d bytes from remote host\n", status);
printf("%s\n", buf);
} else {
// We are expecting this
int e = errno;
printf("Error: %s\n", strerror(e));
}
close(sockfd);
printf("Socket closed.\n");
} }
close(sockfd);
printf("Socket closed.\n");
return 0; return 0;
} }