--- /dev/null
+/* Test of getline() function.
+ Copyright (C) 2007 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2007. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ abort (); \
+ } \
+ } \
+ while (0)
+
+int
+main (int argc, char **argv)
+{
+ FILE *f;
+ char *line = NULL;
+ size_t len = 0;
+ ssize_t result;
+
+ /* Create test file. */
+ f = fopen ("test-getline.txt", "wb");
+ if (!f || fwrite ("a\nbc\nd\0f", 1, 8, f) != 8 || fclose (f) != 0)
+ {
+ fputs ("Failed to create sample file.\n", stderr);
+ unlink ("test-getline.txt");
+ return 1;
+ }
+ f = fopen ("test-getline.txt", "rb");
+ if (!f)
+ {
+ fputs ("Failed to reopen sample file.\n", stderr);
+ unlink ("test-getline.txt");
+ return 1;
+ }
+
+ /* Test initial allocation, which must include trailing NUL. */
+ result = getline (&line, &len, f);
+ ASSERT (result == 2);
+ ASSERT (strcmp (line, "a\n") == 0);
+ ASSERT (2 < len);
+
+ /* Test growth of buffer, must not leak. */
+ free (line);
+ line = malloc (1);
+ len = 0;
+ result = getline (&line, &len, f);
+ ASSERT (result == 3);
+ ASSERT (strcmp (line, "bc\n") == 0);
+ ASSERT (3 < len);
+
+ /* Test embedded NULs and EOF behavior. */
+ result = getline (&line, &len, f);
+ ASSERT (result == 3);
+ ASSERT (memcmp (line, "d\0f", 4) == 0);
+ ASSERT (3 < len);
+
+ result = getline (&line, &len, f);
+ ASSERT (result == -1);
+
+ free (line);
+ fclose (f);
+ unlink ("test-getline.txt");
+ return 0;
+}