add documentation for writing config files

diff --git a/compat/mingw.c b/compat/mingw.c
index fecb98bcff74d2cbcb56e8f9f56d1f3b06339469..363a957a1d406d222c1099ec01d0aea6fae43add 100644 (file)
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -304,23 +304,6 @@ int mingw_open (const char *filename, int oflags, ...)
        return fd;
 }
 
-#undef write
-ssize_t mingw_write(int fd, const void *buf, size_t count)
-{
-       /*
-        * While write() calls to a file on a local disk are translated
-        * into WriteFile() calls with a maximum size of 64KB on Windows
-        * XP and 256KB on Vista, no such cap is placed on writes to
-        * files over the network on Windows XP.  Unfortunately, there
-        * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86;
-        * bigger writes fail on Windows XP.
-        * So we cap to a nice 31MB here to avoid write failures over
-        * the net without changing the number of WriteFile() calls in
-        * the local case.
-        */
-       return write(fd, buf, min(count, 31 * 1024 * 1024));
-}
-
 static BOOL WINAPI ctrl_ignore(DWORD type)
 {
        return TRUE;
@@ -1243,8 +1226,7 @@ static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
        else
                ai->ai_canonname = NULL;
 
-       sin = xmalloc(ai->ai_addrlen);
-       memset(sin, 0, ai->ai_addrlen);
+       sin = xcalloc(1, ai->ai_addrlen);
        sin->sin_family = AF_INET;
        /* Note: getaddrinfo is supposed to allow service to be a string,
         * which should be looked up using getservbyname. This is