Merge branch 'master' of bitbucket.org:xgiovio/reti

Conflicts:
	da_vedere
	test/test.c

3.nome_cognome_string/nc.c

@@ -0,0 +1,80 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+int main (int index, char** in_data){
+     
+     char buf[100];
+     char bufn1[100];
+     char bufn2[100];
+     int num1,num2,sum;
+     
+     
+     fprintf (stdout,"Digitare 2 numeri separati da uno spazio\n");
+     fscanf (stdin, "%99[^\n]%*c",buf);
+     sscanf (buf,"%s %s", bufn1, bufn2);
+     num1 = atoi(bufn1);
+     num2 = atoi(bufn2);
+     sum = num1 + num2;
+     
+     fprintf(stdout,"La somma e' %d\n", sum);
+     
+     
+     
+     fprintf (stdout,"Digitare un nome\n");
+     fscanf (stdin, "%99[^\n]%*c",bufn1);
+     fprintf (stdout,"Digitare un cognome\n");
+     fscanf (stdin, "%99[^\n]",bufn2);
+     
+     char bufsum[200];
+     
+     
+
+     strcpy(bufsum, bufn1);
+     strcat(bufsum, "-");
+     strcat(bufsum, bufn2);
+     
+     fprintf(stdout,"%s\n",bufsum);
+     
+     
+     strcpy(bufsum, bufn2);
+     strcat(bufsum, "-");
+     strcat(bufsum, bufn1);
+     fprintf(stdout,"%s\n",bufsum);
+     
+     
+     if (strcmp(bufn1,bufn2) == 0){
+          fprintf(stdout,"Stringhe uguali\n");
+     } else {
+          fprintf(stdout,"Stringhe diverse\n");
+     }
+     
+     
+     char iniziali[3];
+     iniziali[0] = bufn1[0];
+     iniziali[1] = bufn2[0];
+     iniziali[2] = 0;
+     
+     
+     fprintf(stdout,"Iniziali %s\n",iniziali);
+     
+     char code[150];
+     char sumc[150];
+     sprintf (sumc,"%d",sum);
+     
+     strcpy(code, iniziali);
+     strcat(code, sumc);
+     
+     fprintf(stdout,"Codice %s\n",code);
+     
+     
+     
+     
+     return 0;
+}

3.nome_cognome_string/readme.txt

@@ -0,0 +1 @@
+il programma legge in in input prima due numeri restituendo la somma, poi un nome e congome formando diverse concatenazioni

4.file_read_count/copycount.c

@@ -0,0 +1,87 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+
+int main (int index, char** in_data){
+     
+     
+   int fd,fd2,ridden,wrote, tot,vocali,cifre,righe;
+   tot = vocali = cifre = righe = 0;
+   char buf;
+   fd = open ("sample",O_RDONLY);
+   fd2 = open ("sample_copied", O_CREAT | O_WRONLY,00700);
+   if (fd < 0){
+     fprintf(stderr,"Error reading file %d\n",errno);
+     exit(-1);
+   }
+   if (fd2 < 0){
+     fprintf(stderr,"Error creating file %d\n",errno);
+     exit(-1);
+   }
+
+     for (ridden = read (fd,&buf,1) ; ridden == 1 ;ridden = read (fd,&buf,1)){
+          
+          
+          if (isdigit(buf) != 0){
+               cifre++; tot++;
+               wrote = write (fd2,&buf,1);
+               if (wrote != 1){
+                    fprintf(stderr,"Error writing to file %d\n",errno);
+                    exit(-1);
+               }
+               continue;
+          }
+          
+          if (buf == 'a' || buf == 'e' || buf == 'i' || buf == 'o' || buf == 'u'){
+               vocali++;tot++;
+               wrote = write (fd2,&buf,1);
+               if (wrote != 1){
+                    fprintf(stderr,"Error writing to file %d\n",errno);
+                    exit(-1);
+               }
+               continue;
+          }
+          
+          if (buf == '\n'){
+               righe++;tot++;
+               wrote = write (fd2,&buf,1);
+               if (wrote != 1){
+                    fprintf(stderr,"Error writing to file %d\n",errno);
+                    exit(-1);
+               }
+               continue;
+          }
+          
+          
+          tot++;
+          wrote = write (fd2,&buf,1);
+          if (wrote != 1){
+               fprintf(stderr,"Error writing to file %d\n",errno);
+               exit(-1);
+          }
+ 
+          
+     }
+     
+     if (ridden < 0){
+          fprintf(stderr,"Error reading file %d\n",errno);
+          exit(-1);
+     }
+     
+     fprintf (stdout, "Numero vocali %d\n", vocali);
+     fprintf (stdout, "Numero righe %d\n", righe);
+     fprintf (stdout, "Numero cifre %d\n", cifre);
+     fprintf (stdout, "Numero caratteri %d\n", tot);
+     
+     close(fd);close(fd2);
+     
+     
+     return 0;
+}

4.file_read_count/readme.txt

@@ -0,0 +1 @@
+il programma legge il file sample e lo ricopia in sample_copied contango righe,vocali,numeri e caratteri

4.file_read_count/sample

@@ -0,0 +1,6 @@
+aafdsfdsfdfdfdfdf
+4343
+fdsd342
+fdfdsfFJSNJNDJS
+dfdsfa
+

4.file_read_count/sample_copied

@@ -0,0 +1,6 @@
+aafdsfdsfdfdfdfdf
+4343
+fdsd342
+fdfdsfFJSNJNDJS
+dfdsfa
+

4.file_read_count/sample~

@@ -0,0 +1,6 @@
+fdsfdsfdfdfdfdf
+4343
+fdsd342
+fdfdsfFJSNJNDJS
+dfdsf
+

5.list_file_directory/list.c

@@ -0,0 +1,85 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+
+int main (int index, char** in_data){
+     
+     if (index < 2){
+          fprintf(stderr,"Please specify a directory into command line\n");
+          exit(-1);
+     }
+     
+     if (index > 2){
+          fprintf(stderr,"Please enter only 1 path\n");
+          exit(-1);
+     }
+     
+     
+     char * path;
+     path = *(in_data + 1);
+     
+     DIR * directory;
+     directory =  opendir (path);
+     if ( directory == NULL){ fprintf(stderr, "Not a directory\n"); exit(-1);}
+     
+     
+     struct dirent * dir_entry;
+     struct stat file_stat;
+     char full_path [2048];
+     
+     int fd,ridden;
+     char buf[10];
+     
+     for(dir_entry = readdir(directory); 
+            dir_entry != NULL;              
+            dir_entry = readdir(directory)){
+         
+         strcpy (full_path,path);
+         strcat (full_path,"/");
+         strcat (full_path,dir_entry->d_name);
+         
+         if (stat (full_path,&file_stat) != 0 ) {fprintf(stderr, "Error retrieving file info\n"); exit(-1);}
+         
+         fprintf (stdout,"Name %20s",dir_entry->d_name);
+         fprintf (stdout," / ");
+         fprintf (stdout,"Inode %10d",file_stat.st_ino);
+         fprintf (stdout," / ");
+         fprintf (stdout,"Size %10d",file_stat.st_size);
+         fprintf (stdout," / ");
+         
+         if (S_ISREG (file_stat.st_mode)){
+               fprintf (stdout,"%23s","Regular File / ");
+               fd = open (full_path,O_RDONLY);
+               if (fd < 0){
+                fprintf(stderr,"Error reading file %s %d\n",dir_entry->d_name,errno);
+                exit(-1);
+               }
+               ridden = read (fd,buf,10);
+               buf[ridden] = 0;
+               fprintf (stdout,"%10s",buf);
+               
+               close (fd);
+         } else {
+               fprintf (stdout,"%23s","Not a Regular File / ");
+          
+         }
+         fprintf (stdout,"\n");
+            
+     }
+        
+     if (errno != 0){
+     fprintf(stderr, "Error reading in the directory\n"); exit(-1);
+     }
+     
+     
+     
+     return 0;
+}

5.list_file_directory/readme.txt

@@ -0,0 +1 @@
+il programma legge da liena di ocmando il percorso di una directory e fornisce in output statistiche relative ai file: nome,inode,grandezza in byte, check se il file e' regolare e in tal caso i primi 10 caratteri

6.process_and_signal/file_communication.c

@@ -0,0 +1,153 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+
+void sigusr1action (int signal){
+     
+     fprintf(stdout,"Parent:Ricevuto SIGUSR1\n");
+     
+}
+
+void sigusr1caction (int signal){
+     
+     fprintf(stdout,"Child:Ricevuto SIGUSR1\n");
+     int fd;
+     fd = open ("share_file", O_RDWR | O_APPEND);
+     if (fd < 0){
+          fprintf(stderr,"Child: Error reading file - Errno%d\n",errno);
+          kill(getpid(),SIGKILL);
+     }
+     char a [100];
+     char b [100];
+     char op;
+     lseek(fd,0,SEEK_SET);
+     char data[2];
+     data[1]=0;
+     char input[100]="";
+     for (read(fd,data,1);data[0]!='\n';read(fd,data,1)){
+          strcat(input,data);
+     }
+     sscanf(input,"%s%*c%s%*c%c",a,b,&op);
+     
+     int a_data, b_data,calcolo;
+     char calcolo_s[100];
+     
+     a_data= atoi(a);
+     b_data = atoi(b);
+     
+     if (op=='+'){
+          calcolo = a_data + b_data;
+     }else{
+               if (op=='-'){
+                    calcolo = a_data - b_data;
+               }else{
+                         if (op=='*'){
+                              calcolo = a_data * b_data;
+                         }else{
+
+                              calcolo = a_data / b_data;
+
+                         }
+               }
+     }
+     sprintf(calcolo_s,"%d",calcolo);
+     write (fd,calcolo_s,strlen(calcolo_s));
+     
+     kill(getppid(),SIGUSR1); 
+}
+
+
+
+
+int main (int index, char** in_data){
+     
+     if (index < 4 || index > 4) {
+          fprintf(stderr,"Parametri command line non validi\n");
+          exit(-1);
+     }
+     
+    int duplicate;
+    duplicate = fork();
+    if (duplicate < 0)
+          exit(-1);
+    if (duplicate == 0){
+     //child
+     
+          
+               
+          struct sigaction sigusr1cstructure;
+               sigusr1cstructure.sa_handler = sigusr1caction;
+               sigusr1cstructure.sa_flags = 0;
+          
+          
+         
+         sigaction (SIGUSR1, &sigusr1cstructure, NULL);
+         pause();
+          
+          fprintf(stdout,"Child:Process %d terminated\n",getpid());
+     
+    }else{
+     // parent
+     
+     int fd;
+     fd = open ("share_file", O_CREAT | O_WRONLY | O_EXCL,00700);
+   if (fd < 0){
+     fprintf(stderr,"Parent:Share_file already exists\n");
+     fd = open ("share_file", O_WRONLY | O_TRUNC);
+     if (fd < 0){
+          fprintf(stderr,"Parent:Error writing to file - Err no%d\n",errno);
+          char cmd [100] = "kill -P ";
+          char pid [10];
+          sprintf (pid,"%d",getpid());
+          strcat(cmd,pid);
+          system(cmd);
+          
+     }
+   }
+   
+   write (fd,*(in_data+1),strlen(*(in_data+1)));
+   write (fd," ",1);
+   write (fd,*(in_data+2),strlen(*(in_data+2)));
+   write (fd," ",1);
+   write (fd,*(in_data+3),strlen(*(in_data+3)));
+   write (fd,"\n",1);
+   
+   close(fd);
+   
+     
+          struct sigaction sigusr1structure;
+               sigusr1structure.sa_handler = sigusr1action;
+               sigusr1structure.sa_flags = 0;
+          
+          
+         
+         sigaction (SIGUSR1, &sigusr1structure, NULL);
+         
+          int status;
+          int pid;
+          
+     kill (duplicate,SIGUSR1);
+          
+     for (pid = waitpid(-1,&status,0);pid > 0;pid = waitpid(-1,&status,0)){
+          fprintf(stdout,"Parent:Child %d terminated\n",pid);
+     }
+    
+    fprintf(stdout,"Parent:Process %d terminated\n",getpid());
+    
+    }
+    
+
+     
+     return 0;
+}
+

6.process_and_signal/readme.txt

@@ -0,0 +1,2 @@
+waitc : il parent crea un figlio. Quest'ultimo riceve un numero da terminale e subito manda un sigusr1 al padre. Il parent attende un usr1 o un sigchld e poi termina.
+file_communication : il parent crea un figlio e si comportano come un client server. Da linea di comando si passano tre paramentri: 2 numeri e una operazione. Esempio: 10 5 + . Le operazioni supportate sono + - * /. il file share_file viene utilizzato come file di sharing in cui il server mette i dati e il client la risposta. Il server informa il clinet mediane un usr1 qunado i file sono pronti mentre il client risponde con un usr1 al parent qunado ha completato l'operazione

6.process_and_signal/share_file

@@ -0,0 +1,2 @@
+152 11 -
+141

6.process_and_signal/waitc.c

@@ -0,0 +1,72 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+
+void sigusr1action (int signal){
+     
+     fprintf(stdout,"Parent:Ricevuto SIGUSR1\n");
+     
+}
+
+void sigchldaction (int signal){
+
+    fprintf(stdout,"Parent:Ricevuto SIGCHLD\n");
+
+     
+}
+
+
+int main (int index, char** in_data){
+     
+    int duplicate;
+    duplicate = fork();
+    if (duplicate < 0)
+          exit(-1);
+    if (duplicate == 0){
+     //child
+     
+          int numero;
+          fscanf(stdin,"%d",&numero);
+          kill (getppid(),SIGUSR1);
+          fprintf(stdout,"Child:Process %d terminated\n",getpid());
+     
+    }else{
+     // parent
+     
+          struct sigaction sigusr1structure;
+               sigusr1structure.sa_handler = sigusr1action;
+               sigusr1structure.sa_flags = 0;
+          
+         
+          struct sigaction sigchldstructure;
+               sigchldstructure.sa_handler = sigchldaction;
+               sigchldstructure.sa_flags = 0;
+          
+         
+         sigaction (SIGUSR1, &sigusr1structure, NULL);
+         sigaction (SIGCHLD, &sigchldstructure, NULL);
+         
+          int status;
+          int pid;
+          
+          for (pid = waitpid(-1,&status,0);pid > 0;pid = waitpid(-1,&status,0)){
+               fprintf(stdout,"Parent:Child %d terminated\n",pid);
+          }
+         
+         fprintf(stdout,"Parent:Process %d terminated\n",getpid());
+    }
+    
+    
+    
+     
+     return 0;
+}
+

da_vedere

@@ -11,7 +11,6 @@ clear:
 	rm -f -- per esempio
 
 
-
 struct ind_addr
 struct sockaddr_in castato in struct sockaddr
 
@@ -25,3 +24,5 @@ funzione int socket()..
 	 esercizio con scambo dati tra due processi mediante file e comunicazione mediante segnali
 
 
+=======
+piu file di giannino per i socket, vedi anche fli fopen,etc sugli stream

da_vedere~

@@ -0,0 +1,13 @@
+nel make file
+@echo compilazione di $< in $@
+
+FLAG1= -c
+
+FLAG2 = -o
+
+
+
+clear:
+	rm -f -- per esempio
+
+piu file di giannino per i socket

test/gino

@@ -0,0 +1,2 @@
+ehehifdgfdgdf
+ehi

test/test.c

@@ -1,18 +1,25 @@
-#include <ctype.h>
+#include <unistd.h>
-#include <fcntl.h>
+#include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
 #include <stdlib.h>
-#include <stdio.h>
 
 
 int main (int index, char** in_data){
      
+     int fd;
+     int data;
+     void * buf;
+     buf = malloc (100);
+     
+     fd = open ("gino",O_WRONLY | O_APPEND,00700);
+     lseek (fd,2,SEEK_SET);
+     write (fd,(void *)"ehi",3);
 
      
-     
+     close(fd);
-     
      
      
      return 0;