first commit

vulp.c

@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int main()
+{
+    char* fn = "/tmp/XYZ";
+    char buffer[60];
+    FILE* fp;
+
+    /* get user input */
+    scanf("%50s", buffer);
+
+    if (!access(fn, W_OK)) {
+        fp = fopen(fn, "a+");
+        if (!fp) {
+            perror("Open failed");
+            exit(1);
+        }
+        fwrite("\n", sizeof(char), 1, fp);
+        fwrite(buffer, sizeof(char), strlen(buffer), fp);
+        fclose(fp);
+    } else {
+        printf("No permission \n");
+    }
+
+    return 0;
+}