*: intrduce and use safe_gethostname. By Tito <farmatito AT tiscali.it>

safe_gethostname                                       -      48     +48
glob3                                                 35      37      +2
timestamp_and_log                                    314     315      +1
udhcp_send_kernel_packet                             234     231      -3
scan_tree                                            275     271      -4
passwd_main                                         1074    1070      -4
print_login_prompt                                    68      58     -10
obscure                                              392     377     -15
syslogd_main                                         882     866     -16
print_login_issue                                    516     478     -38
hostname_main                                        278     223     -55
parse_and_put_prompt                                 825     756     -69
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/9 up/down: 51/-214)          Total: -163 bytes
   text    data     bss     dec     hex filename
 798791     728    7484  807003   c505b busybox_old
 798631     728    7484  806843   c4fbb busybox_unstripped

1 files changed, 3 insertions, 7 deletions

diff --git a/miscutils/devfsd.c b/miscutils/devfsd.c
index 52a65bc98..286f00fd8 100644
--- a/miscutils/devfsd.c
+++ b/miscutils/devfsd.c
@@ -1133,8 +1133,8 @@ static void signal_handler(int sig)
 static const char *get_variable(const char *variable, void *info)
 {
         static char sbuf[sizeof(int)*3 + 2]; /* sign and NUL */
+        static char *hostname;
 
-        char hostname[STRING_LENGTH];
         struct get_variable_info *gv_info = info;
         const char *field_names[] = {
                         "hostname", "mntpt", "devpath", "devname",
@@ -1143,12 +1143,8 @@ static const char *get_variable(const char *variable, void *info)
         };
         int i;
 
-        if (gethostname(hostname, STRING_LENGTH - 1) != 0)
-                /* Here on error we should do exit(RV_SYS_ERROR), instead we do exit(EXIT_FAILURE) */
-                error_logger_and_die(LOG_ERR, "gethostname");
-
-        hostname[STRING_LENGTH - 1] = '\0';
-
+        if (!hostname)
+                hostname = safe_gethostname();
         /* index_in_str_array returns i>=0  */
         i = index_in_str_array(field_names, variable);