From 2155a0ec7d693a05553e515ce1a1d3783fdc8e53 Mon Sep 17 00:00:00 2001 From: Roger Pau Monne Date: Thu, 14 Jan 2016 16:06:50 +0100 Subject: [PATCH] libxl: fix _SC_GETPW_R_SIZE_MAX usage MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit If sysconf(_SC_GETPW_R_SIZE_MAX) fails for any reason just use an initial buffer size of 2048. This is not a critical failure, and the code that makes use of this buffer is able to expand it later if required. Signed-off-by: Roger Pau Monné Acked-by: Ian Campbell --- tools/libxl/libxl_dm.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c index 0aaefd9572..a088d71160 100644 --- a/tools/libxl/libxl_dm.c +++ b/tools/libxl/libxl_dm.c @@ -730,9 +730,10 @@ static int libxl__dm_runas_helper(libxl__gc *gc, const char *username) buf_size = sysconf(_SC_GETPW_R_SIZE_MAX); if (buf_size < 0) { - LOGE(ERROR, "sysconf(_SC_GETPW_R_SIZE_MAX) returned error %ld", - buf_size); - return ERROR_FAIL; + buf_size = 2048; + LOG(DEBUG, +"sysconf(_SC_GETPW_R_SIZE_MAX) failed, setting the initial buffer size to %ld", + buf_size); } while (1) { -- 2.30.2