"debut TD0"

2019-2020/S3T_TP_04_PROCESSUS-3-SGF-2/Demonstrations/demo_dup2.c

@@ -0,0 +1,20 @@
+///********************/
+///*  demo_dup2 : ... */
+///********************/
+# include <stdio.h>
+# include <fcntl.h>
+# include <unistd.h>
+
+# define ENTREE_STANDARD 0
+int main()
+{ int descr_group;
+  char c;
+  descr_group = open ("/etc/passwd", O_RDONLY);
+  dup2 (descr_group, ENTREE_STANDARD);/// retour a tester ...
+  c = getchar();
+  while (c != EOF)
+  {
+     putchar(c); c = getchar();
+  }
+  return 0;
+}