Ajout du fichier cronbis.c

C_Language/cronbis.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <malloc.h>
+
+int main( int argc, char **argv)
+{
+	if(argc < 3) { fprintf(stdout, "Usage : %s NBSEC COMMANDE\n", argv[0]); exit(EXIT_FAILURE); }
+
+	int NBSEC;
+	NBSEC = atoi(argv[1]);
+	int pid;
+	int fd0;
+
+	while(1)
+	{
+		if((pid = fork()) == 0)
+		{
+			char ** options = malloc(sizeof(char *)*(argc-2));
+	
+			for(int i = 0; i < (argc -2) ; i++)
+				options[i] = *argv[i+2];
+	
+	
+			if((fd0 = open("/dev/null", O_RDONLY)) == -1)
+			{
+				erreur("Ouverture /dev/null");
+				exit(EXIT_FAILURE);
+			}
+			close(0); dup(fd0);
+
+			exit(EXIT_SUCCESS);
+		}
+		else
+		{
+			waitpid(pid);
+			sleep(NBSEC);
+		}
+	}
+	exit(EXIT_SUCCESS);
+}
+