[libvirt] [PATCH] Make openvzGetVPSUUID take a len.
Minor fix to openvzGetVPSUUID to make it take a length parameter.
This ensures that it doesn't make assumptions about the length
of the UUID buffer, and paves the way for removal of strncpy in
the future.
Signed-off-by: Chris Lalancette <clalance(a)redhat.com>
---
src/openvz_conf.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/src/openvz_conf.c b/src/openvz_conf.c
index 6e9af67..a172fe3 100644
--- a/src/openvz_conf.c
+++ b/src/openvz_conf.c
@@ -54,7 +54,7 @@
#define VIR_FROM_THIS VIR_FROM_OPENVZ
static char *openvzLocateConfDir(void);
-static int openvzGetVPSUUID(int vpsid, char *uuidstr);
+static int openvzGetVPSUUID(int vpsid, char *uuidstr, size_t len);
static int openvzLocateConfFile(int vpsid, char *conffile, int maxlen, const char *ext);
static int openvzAssignUUIDs(void);
@@ -469,7 +469,7 @@ int openvzLoadDomains(struct openvz_driver *driver) {
if (virAsprintf(&dom->def->name, "%i", veid) < 0)
goto no_memory;
- openvzGetVPSUUID(veid, uuidstr);
+ openvzGetVPSUUID(veid, uuidstr, sizeof(uuidstr));
ret = virUUIDParse(uuidstr, dom->def->uuid);
if (ret == -1) {
@@ -805,7 +805,7 @@ openvz_readline(int fd, char *ptr, int maxlen)
}
static int
-openvzGetVPSUUID(int vpsid, char *uuidstr)
+openvzGetVPSUUID(int vpsid, char *uuidstr, size_t len)
{
char conf_file[PATH_MAX];
char line[1024];
@@ -832,7 +832,7 @@ openvzGetVPSUUID(int vpsid, char *uuidstr)
sscanf(line, "%s %s\n", iden, uuidbuf);
if(STREQ(iden, "#UUID:")) {
- strncpy(uuidstr, uuidbuf, VIR_UUID_STRING_BUFLEN);
+ strncpy(uuidstr, uuidbuf, len);
break;
}
}
@@ -856,7 +856,7 @@ openvzSetDefinedUUID(int vpsid, unsigned char *uuid)
if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX, "conf")<0)
return -1;
- if (openvzGetVPSUUID(vpsid, uuidstr))
+ if (openvzGetVPSUUID(vpsid, uuidstr, sizeof(uuidstr)))
return -1;
if (uuidstr[0] == 0) {
--
1.6.0.6