From: Nick Terrell <nickrterrell@gmail.com>
Date: Mon, 13 Jan 2020 22:22:46 +0000 (-0800)
Subject: [util] Fix readLineFromFile on Cygwin
X-Git-Tag: v1.4.5^2~115^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6d00c059fb2a55946ba0d5ef38b91e8f7e1b265;p=thirdparty%2Fzstd.git

[util] Fix readLineFromFile on Cygwin
---

diff --git a/programs/util.c b/programs/util.c
index 399507c2a..4a3a37660 100644
--- a/programs/util.c
+++ b/programs/util.c
@@ -278,7 +278,9 @@ U64 UTIL_getTotalFileSize(const char* const * fileNamesTable, unsigned nbFiles)
 static size_t readLineFromFile(char* buf, size_t len, FILE* file)
 {
     assert(!feof(file));
-    CONTROL( fgets(buf, (int) len, file) == buf );  /* requires success */
+    /* Work around Cygwin problem when len == 1 it returns NULL. */
+    if (len <= 1) return 0;
+    CONTROL( fgets(buf, (int) len, file) );
     {   size_t linelen = strlen(buf);
         if (strlen(buf)==0) return 0;
         if (buf[linelen-1] == '\n') linelen--;