int fileOperations(FILE *outputFile,int* fd,char *directoryName,char *findString){
DIR *openFile;
FILE *inputFile=NULL;
struct dirent *input;
char directory[MAX];
char fullDirectory[MAX];
struct stat statFile;
pid_t pid;
char strPipe[MAX];
char readpipe[MAX];
char arr[MAX];
int stat = 0;
int size = 0;
int fifo2;
int in;
openFile = opendir(directoryName);
if(openFile == NULL){
printf("Dosya acilamadi\n");
closedir(openFile);
exit (1);
}
strncpy(directory,directoryName, MAX - 1);
//signal(SIGINT, &ctrlcSignal);
/*Directory okudum*/
while((input = readdir(openFile)) != NULL){
if(strcmp(input->d_name,".")!=0 && strcmp(input->d_name,"..")!=0){
/*Directory ve altindaki dosyayi bir arraye attim*/
sprintf(fullDirectory, "%s/%s",directory, input -> d_name );
if (lstat(fullDirectory,&statFile) < 0){
perror(fullDirectory);
}
/*Dosya mi directory mi oldugunu kontrol ettim dosya ise*/
if (S_ISDIR(statFile.st_mode) == 0){
/*Dosya sayimi artirdim*/
totalFile = totalFile + 1;
if((pid = fork())== -1){
perror("Not fork\n");
exit (1);
}if(pid == 0){
size = findSize(inputFile,fullDirectory);
totalW += myGrep(inputFile,outputFile,strPipe,fd,size,fullDirectory,findString);
exit (totalW);
}else{
// while (r_wait(NULL) > 0);
/*Asagidaki fonksiyonlari http://www.kaanaslan.com/resource/article/display_article.php?id=87
* sitesinden referans alarak kullandim */
wait(&stat);
totalW = WEXITSTATUS(stat);
}
/*Childlari topladim*/
totalChild = totalChild + 1;
}else{/*Dosya degil ise recursive olarak fonksiyonumu tekrar cagirdim ki dosyayi bulsun*/
/*Directory sayimi buldum*/
totalDirectory = totalDirectory + 1;
if((pid = fork())== -1){
perror("Not fork\n");
exit (1);
}
if(pid == 0){
fileOperations(outputFile,fd,fullDirectory,findString);
if((in= read(fd[0], readpipe,MAX)> 0)){
if(in<=0){
perror("read error \n");
exit(1);
}
//close(fd[0]);
if((fifo2 = open(myfifo, O_RDWR ))==-1){
perror("Not fifo");
exit(1);
}
if(write(fifo2,readpipe,sizeof(char)*MAX)<0)
{
perror("Failed to write");
exit(1);
}
close(fifo2);
if((fifo2 = open(myfifo,O_RDONLY))==-1){
perror("Not fifo");
exit(1);
}
in = read( fifo2, arr,sizeof(char)*MAX);
if(in<=0)
{
perror("not read");
exit(1);
}
fprintf(outputFile,"%s\n",arr);
exit(1);
}
}else{
//while (r_wait(NULL) > 0);
//close(fd[1]);
//unlink("myfifo");
}
}
}
}
//close(fifo2);
closedir(openFile);
return 0;
}
int main(int argc, char* argv[])
{
//create a new command structure to imitate argc/argv
CmdData* cmd = CmdData_Create();
int i = 1;
cmd->argc = argc - 1; //ignore program name
cmd->strcmd = (char*) malloc(MAX_ARG); //allocate a string for using system
memset(cmd->strcmd, 0, MAX_ARG);
for( ; i < argc; ++i) //copy argv
{
cmd->args[i - 1] = (char*) malloc(strlen(argv[i]));
strcpy(cmd->args[i - 1], argv[i]);
strcat(cmd->strcmd, argv[i]);
if(i + 1 < argc) strcat(cmd->strcmd, " ");
}
//Example Could Have Used My system Implementation
//Rather than popen
/**
* Test this after the rest is compiled and tested
*
* Be sure to modify your working system by removing main
* including the sys.h file and removing the headers in the .c file
*
if(strstr(cmd->strcmd, "ping") != 0)
{
system(cmd->strcmd);
}
*/
do //process accepted commands until user enters q
{
if(cmd->argc >= 3 && strcmp(cmd->args[0], "grep") == 0)
{
myGrep(cmd->args, cmd->argc);
}
else if(cmd->argc >= 1 && strcmp(cmd->args[0],"ps") == 0)
{
myPS(cmd->args,cmd->argc);
}
else if(cmd->argc >= 1 && strcmp(cmd->args[0], "ls") == 0)
{
myLS(cmd->args, cmd->argc);
}
else if(cmd->argc >= 3 && strcmp(cmd->args[0], "diff") == 0)
{
myDiff(cmd->args, cmd->argc);
}
else
{
fprintf(stderr, "Accepted Commands are grep, ps, ls, diff\n");
}
printf("Please enter a command or press q to exit\n");
CmdData_Init(&cmd);
}
while( get_args(cmd) && strcmp(CmdData_at(cmd, 0),"q"));
if(cmd) CmdData_Free(&cmd);
return 0;
}
