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DummyUser.c
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DummyUser.c
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//user.c
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <string.h>
#include <stdio.h>
#define PORT 58000
#define NG 9
#define BUFFER_SIZE 128
int main(int argc, char **argv){
int fd, n, nbytes, nwritten, nread;
struct sockaddr_in addr;
struct hostent *hostptr;
char req[BUFFER_SIZE], buffer[BUFFER_SIZE];
char *username = argv[1];
char *SMBname;
int SMBport;
if (argc == 1) {
printf("\nUsername missing...\nCorrect sintaxe: user username [-n SMBname] [-p SMBport]\n");
return 0;
} else if (argc == 4) {
if (!strcmp(argv[2], "-p")) {
SMBport = atoi(argv[3]);
SMBname = "localhost";
}
else if (!strcmp(argv[2], "-n")) {
SMBname = argv[3];
SMBport = PORT + NG;
} else {
printf("\nArgument not known: %s\n", argv[2]);
return 0;
}
} else if(argc == 6) {
if (!strcmp(argv[2], "-n") && !strcmp(argv[4], "-p")) {
SMBname = argv[3];
SMBport = atoi(argv[5]);
}
else if (!strcmp(argv[2], "-p") && !strcmp(argv[4], "-n")) {
SMBport = atoi(argv[3]);
SMBname = argv[5];
} else {
printf("\nArgument not known: %s %s\n", argv[2], argv[4]);
return 0;
}
} else if (argc == 2) {
SMBname = "localhost";
SMBport = PORT + NG;
}
else {
printf("\nCorrect sintaxe: user username [-n SMBname] [-p SMBport]\n");
return 0;
}
printf("name: %s \t port: %d\n", SMBname, SMBport);
fd = socket(AF_INET, SOCK_STREAM, 0);
if(fd == -1)
exit(1);
hostptr = gethostbyname(SMBname);
memset((void*)&addr, (int)'\0', sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = ((struct in_addr*)(hostptr->h_addr_list[0]))->s_addr;
addr.sin_port = htons(SMBport);
n = connect(fd,(struct sockaddr*)&addr, sizeof(addr));
if(n == -1)
exit(1);
sprintf(req, "OLA %s\n", username);
nwritten = write(fd, req, strlen(req));
if(nwritten == -1)
exit(1);
nread = read(fd, buffer, BUFFER_SIZE);
puts(buffer);
close(fd);
exit(0);
}
/* vim: tabstop=4:softtabstop=4:shiftwidth=4:noexpandtab */