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Use MAXHOSTNAMELEN+1 when allocating host/domain name since some

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systems do not include space for the NUL in the size.  Also manually
NUL-terminate buffer from gethostname() since POSIX is wishy-washy on this.
This commit is contained in:
Todd C. Miller
2008-10-29 17:26:42 +00:00
parent 9b5e94cef9
commit efb510a9dc
3 changed files with 7 additions and 4 deletions
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3
sudo.c
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@@ -576,7 +576,7 @@ init_vars(sudo_mode, envp)
int sudo_mode;
char **envp;
{
char *p, **ep, thost[MAXHOSTNAMELEN];
char *p, **ep, thost[MAXHOSTNAMELEN + 1];
int nohostname;
/* Sanity check command from user. */
@@ -602,6 +602,7 @@ init_vars(sudo_mode, envp)
if (nohostname)
user_host = user_shost = "localhost";
else {
thost[sizeof(thost) - 1] = '\0';
user_host = estrdup(thost);
if (def_fqdn) {
/* Defer call to set_fqdn() until log_error() is safe. */