From 76937a57a4cbd3070fa2bb01c24df970f622f45f Mon Sep 17 00:00:00 2001
From: Jordan Bancino <jordan@bancino.net>
Date: Tue, 9 Aug 2022 20:18:13 -0400
Subject: [PATCH] Check return value of fgets() in Json.c

---
 src/Json.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/src/Json.c b/src/Json.c
index 491049f..85654c5 100644
--- a/src/Json.c
+++ b/src/Json.c
@@ -791,7 +791,12 @@ JsonTokenSeek(JsonParserState * state)
                 switch (c)
                 {
                     case 't':
-                        fgets(state->token, 5, state->stream);
+                        if (!fgets(state->token, 5, state->stream))
+                        {
+                            state->tokenType = TOKEN_EOF;
+                            return;
+                        }
+
                         if (!strcmp("true", state->token))
                         {
                             state->tokenType = TOKEN_BOOLEAN;
@@ -803,7 +808,12 @@ JsonTokenSeek(JsonParserState * state)
                         }
                         break;
                     case 'f':
-                        fgets(state->token, 6, state->stream);
+                        if (!fgets(state->token, 6, state->stream))
+                        {
+                            state->tokenType = TOKEN_EOF;
+                            return;
+                        }
+
                         if (!strcmp("false", state->token))
                         {
                             state->tokenType = TOKEN_BOOLEAN;
@@ -815,7 +825,12 @@ JsonTokenSeek(JsonParserState * state)
                         }
                         break;
                     case 'n':
-                        fgets(state->token, 5, state->stream);
+                        if (!fgets(state->token, 5, state->stream))
+                        {
+                            state->tokenType = TOKEN_EOF;
+                            return;
+                        }
+
                         if (!strcmp("null", state->token))
                         {
                             state->tokenType = TOKEN_NULL;