Re: [libvirt] [PATCH 10/11] util: Introduce virGetFCHostNameByFabricWWN

Create a utility routine in order to read the scsi_host fabric_name files looking for a match to a passed fabric_name Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- src/libvirt_private.syms | 1 + src/util/virutil.c | 86 ++++++++++++++++++++++++++++++++++++++++-------- src/util/virutil.h | 4 +++ 3 files changed, 78 insertions(+), 13 deletions(-)

diff --git a/src/util/virutil.c b/src/util/virutil.c index a135819..fb72f2d 100644 --- a/src/util/virutil.c +++ b/src/util/virutil.c @@ -2166,6 +2166,18 @@ virManageVport(const int parent_host, return ret; } +# define READ_WWN(wwn_path, buf) \

+ do { \

+ if (virFileReadAll(wwn_path, 1024, &buf) < 0) \ + goto cleanup; \

+ if ((p = strchr(buf, '\n'))) \ + *p = '\0'; \ + if (STRPREFIX(buf, "0x")) \ + p = buf + strlen("0x"); \ + else \ + p = buf; \ + } while (0) + /* virGetFCHostNameByWWN: * * Iterate over the sysfs tree to get FC host name (e.g. host5)