fun/gosl
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This commit is contained in:
tkarrass 2013-11-02 12:47:17 +01:00
parent 9613da034c
commit d6101662f9
4 changed files with 32 additions and 15 deletions
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10
Makefile
View File

@ -1,17 +1,17 @@
all: bin/net bin/test bin/main
all: bin/test bin/main
bin/net: net.c
mkdir -pv bin
gcc -o bin/net net.c
#bin/net: net.c
# mkdir -pv bin
# gcc -o bin/net net.c
bin/test: test.c
mkdir -pv bin
gcc -o bin/test test.c
bin/main: main.c
bin/main: main.c net.c
mkdir -pv bin
gcc -o bin/main main.c

12
main.c
View File

@ -2,14 +2,13 @@
#include <stdlib.h>
#include <sys/types.h>
#include "misc.h"
#include "net.c"
#define MODE_SERVER 0
#define MODE_CLIENT 1
struct prog_info {
int mode;
int client_num;
int port;
} prog_info;
int parseArgs(struct prog_info *pinfo, int argc, char **argv) {
pinfo->mode = MODE_SERVER;
@ -66,13 +65,12 @@ int main(int argc, char **argv) {
printf("port: %d\n", prog_info.port);
if (prog_info.mode == MODE_SERVER) {
printf("runnin in SERVER mode\n");
// ...
ret = run_server(&prog_info);
} else {
printf("running in CLIENT mode, using client number %d\n", prog_info.client_num);
// ...
}
return 0;
}
return ret;
}

10
misc.h Normal file
View File

@ -0,0 +1,10 @@
#ifndef __MISC
# define __MISC
struct prog_info {
int mode;
int client_num;
int port;
} prog_info;
#endif

15
net.c
View File

@ -10,7 +10,13 @@
#include <arpa/inet.h>
#include <netdb.h>
#define PORT "4711"
// usleep support
#include <time.h>
#include "misc.h"
#define PORT(p) PORTSTR(p)
#define PORTSTR(p) #p
void *get_in_addr(struct sockaddr *sa)
{
@ -21,17 +27,20 @@ void *get_in_addr(struct sockaddr *sa)
return &(((struct sockaddr_in6*)sa)->sin6_addr);
}
int main (int argc, char **argv) {
int run_server(const struct prog_info *pinfo) {
struct addrinfo hints, *servinfo;
char portbuf[6];
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET; // IPv4
hints.ai_socktype = SOCK_DGRAM; // UDP
hints.ai_flags = AI_PASSIVE;
sprintf(portbuf, "%d", pinfo->port);
int rv;
if ((rv = getaddrinfo(NULL, PORT, &hints, &servinfo)) != 0) {
if ((rv = getaddrinfo(NULL, portbuf, &hints, &servinfo)) != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
return 1;
}