From a4841776b6e1751232d46482731836a7c17b896f Mon Sep 17 00:00:00 2001
From: Nathanael Sensfelder <SpamShield0@MultiAgentSystems.org>
Date: Fri, 3 Jan 2020 03:50:24 +0100
Subject: Still working on it...

---
 src/util/string.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'src/util/string.c')

diff --git a/src/util/string.c b/src/util/string.c
index edb5eb6..7e754bd 100644
--- a/src/util/string.c
+++ b/src/util/string.c
@@ -34,3 +34,38 @@ int relabsd_util_parse_int
    *output = ((int) buffer);
    return 0;
 }
+
+/*
+ * Returns -1 on error,
+ *          0 on EOF,
+ *          1 on newline.
+ */
+int relabsd_util_reach_next_line_or_eof (FILE f [const restrict static 1])
+{
+   char c;
+
+   c = (char) getc(f);
+
+   while ((c != '\n') && c != EOF)
+   {
+      c = (char) getc(f);
+   }
+
+   if (ferror(f))
+   {
+      /*
+       * The 'ferror' function's manual specifically states that it does not
+       * sets errno. There is no mention of errno in the 'getc' function's
+       * either, so I am assuming that errno cannot be used to indicate the
+       * error.
+       */
+      return -1;
+   }
+
+   if (c == EOF)
+   {
+      return 0;
+   }
+
+   return 1;
+}
-- 
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