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udp ... master

9 changed files with 17 additions and 17 deletions

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client

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@ -65,7 +65,7 @@ int main(int argc, char* argv[]){
/* [4] Send message /* [4] Send message
=========================================================*/ =========================================================*/
/* (1) Send message to server */ /* (1) Send message to server */
bytes = xwrite(sock, to_send, &server_addr); bytes = xsend(sock, to_send, &server_addr);
/* (2) Check if send succesfully */ /* (2) Check if send succesfully */
if( bytes == -1 ){ if( bytes == -1 ){
@ -80,7 +80,7 @@ int main(int argc, char* argv[]){
/* [5] Wait for response /* [5] Wait for response
=========================================================*/ =========================================================*/
/* (1) Wait for response */ /* (1) Wait for response */
bytes = xread(sock, &server_addr, to_recv, BUFSIZE); bytes = xlisten(sock, &server_addr, to_recv, BUFSIZE);
/* (2) Check if received successfully (and consistently) */ /* (2) Check if received successfully (and consistently) */
if( bytes == -1 ){ if( bytes == -1 ){

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client.o

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lib.c
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@ -21,7 +21,7 @@ int debug(const char* tag, const char* msg){
int xlisten(const int port){ int xbind(const int port){
/* [0] Initialization /* [0] Initialization
=========================================================*/ =========================================================*/
@ -33,7 +33,7 @@ int xlisten(const int port){
=========================================================*/ =========================================================*/
/* (1) Create UPD xsocket */ /* (1) Create UPD xsocket */
xsocket = socket(AF_INET, SOCK_DGRAM, 0); xsocket = socket(AF_INET, SOCK_DGRAM, 0);
DEBUG&& debug("xlisten", "creating server socket"); DEBUG&& debug("xbind", "creating server socket");
/* (r2-) Manage error */ /* (r2-) Manage error */
if( xsocket == -1 ){ if( xsocket == -1 ){
@ -59,7 +59,7 @@ int xlisten(const int port){
=========================================================*/ =========================================================*/
/* (1) Bind and return -1 if error */ /* (1) Bind and return -1 if error */
bound = bind(xsocket, (struct sockaddr*)&addr, sizeof(addr)); bound = bind(xsocket, (struct sockaddr*)&addr, sizeof(addr));
DEBUG&& debug("xlisten", "binding socket to port"); DEBUG&& debug("xbind", "binding socket to port");
/* (2) Manage error */ /* (2) Manage error */
if( bound == -1 ){ if( bound == -1 ){
@ -146,7 +146,7 @@ int xconnect(const char* hostname, const int port, struct sockaddr_in* serv){
int xread(const int xsocket, struct sockaddr_in *client, char* buffer, int bufsize){ int xlisten(const int xsocket, struct sockaddr_in *client, char* buffer, int bufsize){
/* [1] Wait for message through xsocket /* [1] Wait for message through xsocket
=========================================================*/ =========================================================*/
@ -155,7 +155,7 @@ int xread(const int xsocket, struct sockaddr_in *client, char* buffer, int bufsi
buffer = (char*) realloc(buffer, sizeof(char) * bufsize ); buffer = (char*) realloc(buffer, sizeof(char) * bufsize );
/* (2) Listen */ /* (2) Listen */
DEBUG&& debug("xread", "waiting for data"); DEBUG&& debug("xlisten", "waiting for data");
int read = recvfrom(xsocket, buffer, bufsize / sizeof(char) + sizeof(char), 0, (struct sockaddr*) client, &sock_len); int read = recvfrom(xsocket, buffer, bufsize / sizeof(char) + sizeof(char), 0, (struct sockaddr*) client, &sock_len);
/* (3) Manage error */ /* (3) Manage error */
@ -166,7 +166,7 @@ int xread(const int xsocket, struct sockaddr_in *client, char* buffer, int bufsi
DEBUG&& printf("received\n"); DEBUG&& printf("received\n");
printf("[xread:received] '%s'\n", buffer); printf("[xlisten:received] '%s'\n", buffer);
/* [2] Return number of read characters /* [2] Return number of read characters
@ -179,7 +179,7 @@ int xread(const int xsocket, struct sockaddr_in *client, char* buffer, int bufsi
int xwrite(const int xsocket, char* buffer, struct sockaddr_in* target){ int xsend(const int xsocket, char* buffer, struct sockaddr_in* target){
/* [1] Send buffer (message) to target /* [1] Send buffer (message) to target
=========================================================*/ =========================================================*/
@ -187,7 +187,7 @@ int xwrite(const int xsocket, char* buffer, struct sockaddr_in* target){
size_t addr_len = sizeof(struct sockaddr_in); size_t addr_len = sizeof(struct sockaddr_in);
/* (2) Send data */ /* (2) Send data */
DEBUG&& debug("xwrite", "sending data"); DEBUG&& debug("xsend", "sending data");
int sent = sendto(xsocket, buffer, strlen(buffer)+1, 0, (struct sockaddr*) target, addr_len); int sent = sendto(xsocket, buffer, strlen(buffer)+1, 0, (struct sockaddr*) target, addr_len);
/* (3) Manage error */ /* (3) Manage error */
@ -199,7 +199,7 @@ int xwrite(const int xsocket, char* buffer, struct sockaddr_in* target){
DEBUG&& printf("sent\n"); DEBUG&& printf("sent\n");
printf("[xwrite:sent] '%s'\n", buffer); printf("[xsend:sent] '%s'\n", buffer);
/* [2] Return number of sent characters /* [2] Return number of sent characters

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lib.h
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@ -30,8 +30,8 @@
int debug(const char* tag, const char* msg); int debug(const char* tag, const char* msg);
int xlisten(const int port); int xbind(const int port);
int xconnect(const char* hostname, const int port, struct sockaddr_in* serv); int xconnect(const char* hostname, const int port, struct sockaddr_in* serv);
int xread(const int xsocket, struct sockaddr_in *client, char* buffer, int bufsize); int xlisten(const int xsocket, struct sockaddr_in *client, char* buffer, int bufsize);
int xwrite(const int xsocket, char* buffer, struct sockaddr_in* target); int xsend(const int xsocket, char* buffer, struct sockaddr_in* target);
#endif #endif

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lib.o

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server

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@ -54,7 +54,7 @@ int main(int argc, char* argv[]){
/* [3] Create socket /* [3] Create socket
=========================================================*/ =========================================================*/
/* (1) Create socket */ /* (1) Create socket */
sock = xlisten(port); sock = xbind(port);
/* (1-) Manage error */ /* (1-) Manage error */
if( sock == -1 ){ if( sock == -1 ){
@ -66,7 +66,7 @@ int main(int argc, char* argv[]){
/* [4] Wait for client message /* [4] Wait for client message
=========================================================*/ =========================================================*/
/* (1) Listen to data */ /* (1) Listen to data */
bytes = xread(sock, &addr_client, to_recv, BUFSIZE); bytes = xlisten(sock, &addr_client, to_recv, BUFSIZE);
/* (2) Manage error */ /* (2) Manage error */
@ -83,7 +83,7 @@ int main(int argc, char* argv[]){
/* [5] Send response /* [5] Send response
=========================================================*/ =========================================================*/
/* (1) Send response */ /* (1) Send response */
bytes = xwrite(sock, to_send, &addr_client); bytes = xsend(sock, to_send, &addr_client);
/* (2) Manage error */ /* (2) Manage error */
if( bytes == -1 ){ if( bytes == -1 ){

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server.o

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