[libvirt] [PATCH 1/2] utils: Return proper value for virGet{User, Group}ID

[Michal Privoznik]

These two functions are used to translate user or group name into
a numerical ID. Depending on platform we are building for, we
have an implementation for UNIX-like systems, and a stub
implementation for Windows. While the former returns a negative
value on error, the latter simply reports an error (saying
something about missing implementation) and returns the value of
zero. This makes the caller think function did succeed and passed
variable had been set to the correct value. Well, it was not.
Even compiler spots this when compiling for win32:

  CC       util/libvirt_util_la-virutil.lo
../../src/util/virutil.c: In function 'virParseOwnershipIds':
../../src/util/virutil.c:2410:17: error: 'theuid' may be used uninitialized in this function [-Werror=maybe-uninitialized]
         *uidPtr = theuid;
                 ^
../../src/util/virutil.c:2380:9: note: 'theuid' was declared here
     uid_t theuid;
         ^
../../src/util/virutil.c:2412:17: error: 'thegid' may be used uninitialized in this function [-Werror=maybe-uninitialized]
         *gidPtr = thegid;
                 ^
../../src/util/virutil.c:2381:9: note: 'thegid' was declared here
     gid_t thegid;
         ^
cc1: all warnings being treated as errors
Makefile:9167: recipe for target 'util/libvirt_util_la-virutil.lo' failed

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/util/virutil.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/util/virutil.c b/src/util/virutil.c
index e479cce..cddc78a 100644
--- a/src/util/virutil.c
+++ b/src/util/virutil.c
@@ -1316,7 +1316,7 @@ int virGetUserID(const char *name ATTRIBUTE_UNUSED,
     virReportError(VIR_ERR_INTERNAL_ERROR,
                    "%s", _("virGetUserID is not available"));
 
-    return 0;
+    return -1;
 }
 
 
@@ -1326,7 +1326,7 @@ int virGetGroupID(const char *name ATTRIBUTE_UNUSED,
     virReportError(VIR_ERR_INTERNAL_ERROR,
                    "%s", _("virGetGroupID is not available"));
 
-    return 0;
+    return -1;
 }
 
 int
-- 
2.3.6