From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Tue, 15 Mar 2016 11:36:49 +0000 (+0100)
Subject: Fix reading of long man files
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=5f43600abc12449a5af5d7d8a4f12cdd88a40c99;p=xboard.git

Fix reading of long man files

The low-level read call to read from the spawned process did not
always return as many characters as we asked for, so we now use fread.
---

diff --git a/usystem.c b/usystem.c
index 23b798b..572b910 100644
--- a/usystem.c
+++ b/usystem.c
@@ -523,8 +523,11 @@ BufferCommandOutput (char *command, int size)
     char *res = (char *) calloc(1, size);
     if(res) {
 	int count;
+	FILE *f;
 	StartChildProcess(command, ".", (ProcRef) &pr);    // run command in daughter process
-	count = read(pr->fdFrom, res, size-1);  // read its output
+	f = fdopen(pr->fdFrom, "r");
+	count = fread(res, 1, size-1, f);  // read its output
+	fclose(f);
 	res[count > 0 ? count : 0] = NULLCHAR;  
 	DestroyChildProcess((ProcRef) pr, 9);
 	free(pr);