Obsolete
/
libipc-old
Archived
3
0
Fork 0
Code

still working on tcpdserver but the end is coming

more_to_read
lapupe 2016-09-21 20:38:04 +02:00
parent afb205c843
commit cc87ad527d
3 changed files with 123 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
remote/tcpdclient.c
View File

@ -60,6 +60,8 @@ int main(int argc, char ** argv) {
write_message(sock, "pongd 5");
sleep(1);
write_message(sock, "is it working ???");
sleep(2);
write_message(sock, "is it working ???");
close(sock);

170
remote/tcpdserver.c
View File

@ -107,8 +107,9 @@ int main(int argc, char * argv[], char **env) {
p_data *p_d_listen = malloc (sizeof(p_data));
//p_d_listen.c_sock = NULL;
p_d_listen->sfd = sfd;
p_d_listen->index = 0;
int ret = pthread_create( &listenPid, NULL, &listen_thread, (void *) p_d_listen);
int ret = pthread_create( &listenPid, NULL, &service_thread, (void *) p_d_listen);
if (ret) {
perror("pthread_create()");
endConnection(sock, sfd);
@ -124,13 +125,14 @@ int main(int argc, char * argv[], char **env) {
return 0;
}
void * listen_thread(void * pdata) {
void * service_thread(void * pdata) {
p_data *pda = (p_data*) pdata;
char buffer[BUF_SIZE];
char *service;
int version;
int clientSock = pda->sfd;
if (read_message(pda->sfd, buffer) == -1) {
if (read_message(clientSock, buffer) == -1) {
perror("read_message()");
return NULL;
}else {
@ -142,17 +144,34 @@ void * listen_thread(void * pdata) {
** disponibles
*/
// printf("%d\n", getpid());
// printf("%zu\n", pthread_self());
//path service
char * servicePath = malloc(sizeof PATH_MAX);
strcat(servicePath, TMPDIR);
strcat(servicePath, service);
//pid index version
char * piv = malloc(sizeof PATH_MAX);
makePivMessage(&piv, getpid(), pda->index, version);
printf("piv : %s\n",piv );
//write pid index version in T/I/S of service
int ret = file_write(servicePath, piv, strlen(piv));
if(ret == 0) {
perror("file_write()");
free(servicePath);
free(piv);
return NULL;
}
// gets the service path, such as /tmp/ipc/pid-index-version-in/out
char *pathname[2];
inOutPathCreate(pathname, version);
inOutPathCreate(pathname, pda->index, version);
printf("%s\n",pathname[0] );
printf("%s\n",pathname[1] );
// printf("pathname 1: %s\n",pathname[0] );
// printf("pathname 2: %s\n",pathname[1] );
/*if(fifo_create(pathname[0]) != 0) {
//create in out files
if(fifo_create(pathname[0]) != 0) {
perror("fifo_create()");
return NULL;
}
@ -160,41 +179,62 @@ void * listen_thread(void * pdata) {
if(fifo_create(pathname[1]) != 0) {
perror("fifo_create()");
return NULL;
}*/
pthread_t sendPid;
int ret = pthread_create( &sendPid, NULL, &send_thread, (void *) pda);
if (ret) {
perror("pthread_create()");
exit(errno);
} else {
printf("Creation of send thread \n");
}
while (1) {
int n = read_message(pda->sfd, buffer);
if (n > 0) {
printf("%s\n", buffer );
}
}
pthread_join(sendPid, NULL);
return NULL;
}
void * send_thread(void * pdata) {
p_data *pda = (p_data*) pdata;
int ret;
size_t msize = BUFSIZ;
char *buf = NULL;
while (1) {
ret = file_read(pda->fifoOut, &buf, &msize);
if (ret > 0) {
printf("%s\n",buf );
printf("pathname[0] : %s\n", pathname[0]);
//open -in fifo file
int fdin = open (pathname[0], O_RDWR);
if (fdin <= 0) {
printf("open: fd < 0\n");
perror ("open()");
return NULL;
}
//utilisation du select() pour surveiller la socket du client et fichier in
fd_set rdfs;
int max = clientSock > fdin ? clientSock : fdin;
max = max > STDIN_FILENO ? max : STDIN_FILENO;
while(1) {
FD_ZERO(&rdfs);
/* add STDIN_FILENO */
FD_SET(STDIN_FILENO, &rdfs);
//add client's socket
FD_SET(clientSock, &rdfs);
//add in file
FD_SET(fdin, &rdfs);
if(select(max + 1, &rdfs, NULL, NULL, NULL) == -1)
{
perror("select()");
exit(errno);
}
/* something from standard input : i.e keyboard */
if(FD_ISSET(STDIN_FILENO, &rdfs))
{
/* stop process when type on keyboard */
break;
}else if (FD_ISSET(clientSock, &rdfs)) {
if(read_message(clientSock, buffer) > 0) {
printf("message : %s\n",buffer );
}
/*if(file_write(pathname[1], buffer, strlen(buffer)) < 0) {
perror("file_write");
}*/
}else {
if(read(fdin, &buffer, BUF_SIZE) < 0) {
perror("read()");
}
printf("file in : %s\n", buffer );
}
}
free(servicePath);
free(piv);
return NULL;
}
@ -253,37 +293,57 @@ int fifo_create (char * path)
return ret;
}
void inOutPathCreate(char ** pathname, int version) {
void inOutPathCreate(char ** pathname, int index, int version) {
pathname[0] = malloc(sizeof PATH_MAX);
pathname[1] = malloc(sizeof PATH_MAX);
int length = snprintf( NULL, 0, "%d", version );
char* str = malloc( length + 2 );
snprintf( str, length + 1, "%d", version );
char* versionStr = malloc( length + 2 );
snprintf( versionStr, length + 1, "%d", version );
int length2 = snprintf( NULL, 0, "%zu", pthread_self() );
char * str2 = malloc( length2 + 1 );
snprintf( str2, length2 + 1, "%zu", pthread_self() );
int length2 = snprintf( NULL, 0, "%d", getpid() );
char * pidprocess = malloc( length2 + 1 );
snprintf( pidprocess, length2 + 1, "%d", getpid() );
int length3 = snprintf( NULL, 0, "%d", 1 );
char* str3 = malloc( length3 + 1 );
snprintf( str3, length3 + 1, "%d", 1 );
int length3 = snprintf( NULL, 0, "%d", index );
char* indexStr = malloc( length3 + 1 );
snprintf( indexStr, length3 + 1, "%d", index );
strcat(pathname[0], TMPDIR);
strcat(pathname[0], str2);
strcat(pathname[0], pidprocess);
strcat(pathname[0], "-");
strcat(pathname[0], str3);
strcat(pathname[0], indexStr);
strcat(pathname[0], "-");
strcat(pathname[0], str);
strcat(pathname[0], versionStr);
strcat(pathname[0], "-in");
strcat(pathname[1], TMPDIR);
strcat(pathname[1], str2);
strcat(pathname[1], pidprocess);
strcat(pathname[1], "-");
strcat(pathname[1], str3);
strcat(pathname[1], indexStr);
strcat(pathname[1], "-");
strcat(pathname[1], str);
strcat(pathname[1], versionStr);
strcat(pathname[1], "-out");
}
void makePivMessage (char ** piv, int pid, int index, int version) {
int length1 = snprintf( NULL, 0, "%d", getpid() );
char * pidprocess = malloc( length1 + 1 );
snprintf( pidprocess, length1 + 1, "%d", getpid() );
int length2 = snprintf( NULL, 0, "%d", index );
char* indexStr = malloc( length2 + 1 );
snprintf( indexStr, length2 + 1, "%d", index );
int length3 = snprintf( NULL, 0, "%d", version );
char* versionStr = malloc( length3 + 2 );
snprintf( versionStr, length3 + 1, "%d", version );
strcat(*piv, pidprocess);
strcat(*piv, " ");
strcat(*piv, indexStr);
strcat(*piv, " ");
strcat(*piv, versionStr);
}

10
remote/tcpdserver.h
View File

@ -9,7 +9,7 @@
typedef struct {
struct sockaddr_in c_sock;
int sfd;
char * fifoOut;
int index;
} p_data;
int initConnection ();
@ -21,17 +21,19 @@ void write_message(int sock, const char *buffer);
int read_message(int sock, char *buffer);
//2 threads for listen and send data
void * listen_thread(void * pdata);
void * send_thread(void * pdata);
void * service_thread(void * pdata);
//parse the first message from client in service and version
void parseServiceVersion(char * buf, char ** service, int *version);
//create 2 pathnames such as : pid-index-version-in/out
void inOutPathCreate(char ** pathname, int version);
void inOutPathCreate(char ** pathname, int index, int version);
//create a fifo file
int fifo_create (char * path);
//create first message for a service : pid index version
void makePivMessage(char ** piv, int pid, int index, int version);
#endif