1 files changed, 52 insertions, 0 deletions
diff --git a/src/stdio/fgets.c b/src/stdio/fgets.c
new file mode 100644
index 00000000..df110de2
--- /dev/null
+++ b/src/stdio/fgets.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include "nonstd/io.h"
+
+/** read a string of characters from a file stream **/
+char * fgets(char * restrict s, int n, FILE * restrict stream)
+{
+	flockfile(stream);
+
+	int i = 0;
+	if (feof(stream)) {
+		return NULL;
+	}
+
+	while (i < n-1) {
+		s[i] = fgetc(stream);
+		if (s[i] == '\n') {
+			s[i+1] = '\0';
+			i = n;
+		} else if (s[i] == EOF && feof(stream)) {
+			s[i] = '\0';
+			i = n;
+		}
+		i++;
+	}
+
+	funlockfile(stream);
+	/*
+	RETURN_SUCCESS(ARGUMENT(s));
+	RETURN_FAILURE(CONSTANT(NULL));
+	*/
+	return s;
+}
+
+/***
+reads a string of characters from ARGUMENT(stream). Up to
+ARGUMENT(n)-1 characters will be read into the array at ARGUMENT(s).
+
+If a newline is read, it will be appended to ARGUMENT(s) and THIS() will return.
+
+If end-of-file is reached, THIS() will return.
+
+A CHAR(\0) will be written immediately after the final character is read.
+
+If end-of-file is reached before any characters are read, the contents of
+ARGUMENT(s) will be unchanged.
+
+If an error occurs, the contents of ARGUMENT(s) are indeterminite.
+***/
+
+/*
+STDC(1)
+*/