dup.c

AnimalProcessing/Proficiencies/dup.c

@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <err.h>
+
+/*
+         __ 
+    ___( o)>
+    \ <_. )
+     `---' 
+
+Coic coic
+*/
+
+int duper(char **argv, char *output){
+
+
+    //int fd[2];
+    //pipe(fd);
+
+    int wstatus;
+    pid_t pid = fork();
+
+    if(pid < 0) return -1;
+
+    //Child
+    else if (pid == 0){
+
+        // ouverture en mode write 
+        FILE *file = fopen(output, "w");
+        if(!file) exit(-1);
+
+        
+        int fno = fileno(file);
+        if(dup2(fno, STDOUT_FILENO) == -1) exit(-1);
+        
+        fclose(file);
+
+        execvp(argv[0],argv);
+        
+        exit(0);
+    }
+
+    // Uncle... Daddy, mommy, well ikd
+    else {
+
+        if(waitpid(pid, &wstatus, 0) ==  -1) return -1; 
+
+        if(WIFEXITED(wstatus)) printf("My child send me %i.\n", WEXITSTATUS(wstatus));
+        
+    }
+    return 0;
+
+}
+
+/*
+int main(int argc, char **argv)
+{
+    if(argc > 3) 
+    duper(argv + 2, argv[1]);
+}
+*/