first commit

src/read_until_string.c

@@ -0,0 +1,26 @@
+// the same as read_until_string, but this function not only truncates but fills remaining chars with null characters
+// this function is cleaner and nicer to work with, but not as fast as "read_until_string"
+// ct means "clean truncate"
+// return 1 on success, -1 when buffer is NULL
+
+#include <unistd.h>
+#include <string.h>
+
+void read_until_string(int fd, char buffer[], char search_string[]) {
+  int i = 0;
+  int j = 0;
+
+  while(read(fd, &buffer[i], 1)) {
+    if (buffer[i] == search_string[j]) {
+      j++;
+    } else {
+      j = 0;
+    }
+    if (j == (strlen(search_string))) {
+      break;
+    }
+    i++;
+  }
+  size_t truncate_position = strlen(buffer) - strlen(search_string);
+  memset(&buffer[truncate_position], '\0', truncate_position);
+}