1 files changed, 72 insertions, 0 deletions
diff --git a/libbb/get_line_from_file.c b/libbb/get_line_from_file.c
new file mode 100644
index 0000000..7594817
--- /dev/null
+++ b/libbb/get_line_from_file.c
@@ -0,0 +1,72 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) tons of folks.  Tracking down who wrote what
+ * isn't something I'm going to worry about...  If you wrote something
+ * here, please feel free to acknowledge your work.
+ *
+ * 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 2 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include <stdio.h>
+#include "libbb.h"
+
+
+
+/* get_line_from_file() - This function reads an entire line from a text file
+ * up to a newline. It returns a malloc'ed char * which must be stored and
+ * free'ed  by the caller. */
+extern char *get_line_from_file(FILE *file)
+{
+	static const int GROWBY = 80; /* how large we will grow strings by */
+
+	int ch;
+	int idx = 0;
+	char *linebuf = NULL;
+	int linebufsz = 0;
+
+	while (1) {
+		ch = fgetc(file);
+		if (ch == EOF)
+			break;
+		/* grow the line buffer as necessary */
+		while (idx > linebufsz-2)
+			linebuf = xrealloc(linebuf, linebufsz += GROWBY);
+		linebuf[idx++] = (char)ch;
+		if ((char)ch == '\n')
+			break;
+	}
+
+	if (idx == 0)
+		return NULL;
+
+	linebuf[idx] = 0;
+	return linebuf;
+}
+
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/