1 files changed, 82 insertions, 0 deletions
diff --git a/busybox/libbb/get_line_from_file.c b/busybox/libbb/get_line_from_file.c
new file mode 100644
index 0000000..6d12b21
--- /dev/null
+++ b/busybox/libbb/get_line_from_file.c
@@ -0,0 +1,82 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) many different people.
+ * If you wrote this, please 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
+ */
+
+#include <stdio.h>
+#include <stdlib.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.  If 'c' is nonzero, the trailing '\n' (if any)
+ * is removed.  In event of a read error or EOF, NULL is returned. */
+
+static char *private_get_line_from_file(FILE *file, int c)
+{
+#define GROWBY (80)		/* how large we will grow strings by */
+
+	int ch;
+	int idx = 0;
+	char *linebuf = NULL;
+	int linebufsz = 0;
+
+	while ((ch = getc(file)) != EOF) {
+		/* grow the line buffer as necessary */
+		if (idx > linebufsz - 2) {
+			linebuf = xrealloc(linebuf, linebufsz += GROWBY);
+		}
+		linebuf[idx++] = (char)ch;
+		if (ch == '\n' || ch == '\0') {
+			if (c) {
+				--idx;
+			}
+			break;
+		}
+	}
+	if (linebuf) {
+		if (ferror(file)) {
+			free(linebuf);
+			return NULL;
+		}
+		linebuf[idx] = 0;
+	}
+	return linebuf;
+}
+
+extern char *bb_get_line_from_file(FILE *file)
+{
+	return private_get_line_from_file(file, 0);
+}
+
+extern char *bb_get_chomped_line_from_file(FILE *file)
+{
+	return private_get_line_from_file(file, 1);
+}
+
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/