From 16332bd57b86edebaefa83c6ca8fb3d04048e93d Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Thu, 18 Jul 2019 14:40:08 -0400
Subject: font_list(): New function

---
diff --git a/src/font.c b/src/font.c
index 30d51c9..719d7ff 100644
--- a/src/font.c
+++ b/src/font.c
@@ -22,6 +22,7 @@
 #include "font.h"
 
 #include <limits.h>
+#include <stdio.h>
 #include <string.h>
 
 #include <png.h>
@@ -47,6 +48,16 @@ static const struct font_desc *fonts[] = {
 	&font_mplus_1mn_regular_16x22,
 };
 
+void
+font_list(FILE *stream)
+{
+	size_t i;
+
+	for (i = 0; i < *(&fonts + 1) - fonts; ++i) {
+		fprintf(stream, "%s\n", fonts[i]->name);
+	}
+}
+
 struct font *
 font_default(void)
 {
diff --git a/src/font.h b/src/font.h
index c1abe26..4cd7da1 100644
--- a/src/font.h
+++ b/src/font.h
@@ -22,10 +22,15 @@
 #ifndef FONT_H_
 #define FONT_H_
 
+#include <stdio.h>
+
 #include <png.h>
 
 #include <linux/font.h>
 
+void
+font_list(FILE *stream);
+
 struct font *
 font_default(void) __attribute__((pure));
 
diff --git a/src/main.c b/src/main.c
index 411902c..e6fdada 100644
--- a/src/main.c
+++ b/src/main.c
@@ -60,6 +60,10 @@ main(int argc, char **argv)
 	while ((opt = getopt(argc, argv, "f:w:h:")) != -1) {
 		switch (opt) {
 			case 'f':
+				if (strcmp(optarg, "list") == 0) {
+					font_list(stdout);
+					return 0;
+				}
 				font = font_find(optarg);
 				if (!font) {
 					fprintf(stderr, _("Font \"%s\" not "
--
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