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Comply with GNU Coding Standards

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This commit is contained in:
Thomas Wade 2018-10-31 22:23:18 +10:30
parent 5bb16cf20a
commit 59c594c5c3
1 changed files with 81 additions and 44 deletions
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61
client1.c
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@ -1,3 +1,8 @@
// client1 - client program for demonstrating data transfer over TCP/IP
// This program complies with the GNU Coding Standards found here:
// https://www.gnu.org/prep/standards/html_node/index.html
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
@ -12,12 +17,15 @@
#define BUFFERT 512
int duration (struct timeval *start,struct timeval *stop, struct timeval *delta);
int duration (struct timeval *start, struct timeval *stop,
struct timeval *delta);
int create_client_socket (int port, char* ipaddr);
struct sockaddr_in sock_serv;
int main (int argc, char**argv){
int main (int argc, char**argv)
{
struct timeval start, stop, delta;
int sfd, fd;
char buf[BUFFERT];
@ -25,43 +33,62 @@ int main (int argc, char**argv){
long int n;
int l = sizeof(struct sockaddr_in);
struct stat buffer;
if (argc != 4){
if (argc != 4)
{
printf("Error usage : %s <ip_serv> <port_serv> <filename>\n", argv[0]);
return EXIT_FAILURE;
}
sfd = create_client_socket(atoi(argv[2]), argv[1]);
if ((fd = open(argv[3],O_RDONLY))==-1){
if ((fd = open(argv[3], O_RDONLY)) == -1)
{
perror("open fail");
return EXIT_FAILURE;
}
if (stat(argv[3],&buffer)==-1){
if (stat(argv[3], &buffer) == -1)
{
perror("stat fail");
return EXIT_FAILURE;
}
else
{
sz = buffer.st_size;
}
bzero(&buf, BUFFERT);
if(connect(sfd,(struct sockaddr*)&sock_serv,l)==-1){
if(connect(sfd, (struct sockaddr*) &sock_serv, l) == -1)
{
perror("conexion error\n");
exit (3);
}
gettimeofday(&start, NULL);
n = read(fd, buf, BUFFERT);
while(n){
if(n==-1){
while(n)
{
if(n == -1)
{
perror("read fails");
return EXIT_FAILURE;
}
m = sendto(sfd, buf, n, 0, (struct sockaddr*) &sock_serv, l);
if(m==-1){
if(m == -1)
{
perror("send error");
return EXIT_FAILURE;
}
count += m;
bzero(buf,BUFFERT);
n = read(fd,buf,BUFFERT);
}
m = sendto(sfd, buf, 0, 0, (struct sockaddr*) &sock_serv, l);
gettimeofday(&stop, NULL);
duration(&start, &stop, &delta);
@ -72,7 +99,8 @@ int main (int argc, char**argv){
return EXIT_SUCCESS;
}
int duration (struct timeval *start,struct timeval *stop,struct timeval *delta)
int duration (struct timeval *start, struct timeval *stop,
struct timeval *delta)
{
suseconds_t microstart, microstop, microdelta;
@ -81,20 +109,28 @@ int duration (struct timeval *start,struct timeval *stop,struct timeval *delta)
microdelta = microstop - microstart;
delta->tv_usec = microdelta % 100000;
delta->tv_sec = (time_t) (microdelta / 100000);
if ((*delta).tv_sec < 0 || (*delta).tv_usec < 0)
{
return -1;
}
else
{
return 0;
}
}
int create_client_socket (int port, char* ipaddr){
int create_client_socket (int port, char* ipaddr)
{
int l;
int sfd;
sfd = socket(PF_INET, SOCK_STREAM, 0);
if (sfd == -1){
if (sfd == -1)
{
perror("socket fail");
return EXIT_FAILURE;
}
l = sizeof(struct sockaddr_in);
bzero(&sock_serv, l);
sock_serv.sin_family=AF_INET;
@ -103,5 +139,6 @@ int create_client_socket (int port, char* ipaddr){
printf("Invalid IP adress\n");
return EXIT_FAILURE;
}
return sfd;
}