1 files changed, 64 insertions, 0 deletions
diff --git a/libbb/fgets_str.c b/libbb/fgets_str.c
new file mode 100644
index 0000000..33d8d00
--- /dev/null
+++ b/libbb/fgets_str.c
@@ -0,0 +1,64 @@
+/*
+ *  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 Library 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 <string.h>
+
+/*
+ * Continue reading from file until the terminating string is encountered.
+ * Return data as string.
+ * e.g. fgets_str(file, "\n"); will read till end of file
+ */
+
+char *fgets_str(FILE *file, const char *terminating_string)
+{
+	char *linebuf = NULL;
+	const int term_length = strlen(terminating_string);
+	int end_string_offset;
+	int linebufsz = 0;
+	int idx = 0;
+	int ch;
+
+	while (1) {
+		ch = fgetc(file);
+		if (ch == EOF) {
+			break;
+		}
+
+		/* grow the line buffer as necessary */
+		while (idx > linebufsz - 2) {
+			linebuf = realloc(linebuf, linebufsz += 1000); /* GROWBY */
+		}
+
+		linebuf[idx] = ch;
+		idx++;
+
+		/* Check for terminating string */
+		end_string_offset = idx - term_length;
+		if ((end_string_offset > 0) && (memcmp(&linebuf[end_string_offset], terminating_string, term_length) == 0)) {
+			idx -= term_length;
+			break;
+		}
+	}
+	if (idx == 0) {
+		return NULL;
+	}
+	linebuf[idx] = '\0';
+	return(linebuf);
+}
+