Use the sysconf(_SC_HOST_NAME_MAX) to determine maximum length of a
hostname.
Signed-off-by: Sami Kerola <kerolasa@xxxxxx>
---
login-utils/login.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/login-utils/login.c b/login-utils/login.c
index 8ae5266..8cf6865 100644
--- a/login-utils/login.c
+++ b/login-utils/login.c
@@ -109,7 +109,7 @@ struct login_context {
char vcsan[VCS_PATH_MAX];
#endif
- char thishost[MAXHOSTNAMELEN + 1]; /* this machine */
+ char *thishost; /* this machine */
char *thisdomain; /* this machine domain */
char *hostname; /* remote machine */
char hostaddress[16]; /* remote address */
@@ -209,13 +209,13 @@ static void __attribute__ ((__noreturn__)) sleepexit(int eval)
static const char *get_thishost(struct login_context *cxt, const char **domain)
{
- if (!*cxt->thishost) {
- if (gethostname(cxt->thishost, sizeof(cxt->thishost))) {
+ if (!cxt->thishost) {
+ cxt->thishost = xmalloc(sizeof(char) * (sysconf(_SC_HOST_NAME_MAX) + 1));
+ if (gethostname(cxt->thishost, sysconf(_SC_HOST_NAME_MAX))) {
if (domain)
*domain = NULL;
return NULL;
}
- cxt->thishost[sizeof(cxt->thishost) -1] = '\0';
cxt->thisdomain = strchr(cxt->thishost, '.');
if (cxt->thisdomain)
*cxt->thisdomain++ = '\0';
--
1.7.12.2
--
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