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- introduce and use bb_path_wtmp_file for portability (saves 11 Bytes).

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- fix last.c to also look at the double-underscore UT_ defines.
This commit is contained in:
Bernhard Reutner-Fischer 2006-05-26 14:41:40 +00:00
parent b180e5a766
commit 781e42d66c
5 changed files with 33 additions and 13 deletions
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10
include/libbb.h
View File

@ -11,6 +11,8 @@
#ifndef __LIBBUSYBOX_H__
#define __LIBBUSYBOX_H__ 1
#include "platform.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
@ -18,14 +20,10 @@
#include <sys/stat.h>
#include <termios.h>
#include <dirent.h>
#include <stdint.h>
#include <netinet/in.h>
#include <netdb.h>
#include <features.h>
#include "platform.h"
#include "bb_config.h"
#ifdef CONFIG_SELINUX
#include <selinux/selinux.h>
@ -41,8 +39,11 @@
#endif
/* Some useful definitions */
#undef FALSE
#define FALSE ((int) 0)
#undef TRUE
#define TRUE ((int) 1)
#undef SKIP
#define SKIP ((int) 2)
/* for mtab.c */
@ -348,6 +349,7 @@ extern const char * const bb_path_gshadow_file;
extern const char * const bb_path_group_file;
extern const char * const bb_path_securetty_file;
extern const char * const bb_path_motd_file;
extern const char * const bb_path_wtmp_file;
extern const char * const bb_dev_null;
#ifndef BUFSIZ

14
libbb/messages.c
View File

@ -93,6 +93,20 @@ const char * const bb_default_login_shell = LIBBB_DEFAULT_LOGIN_SHELL;
const char * const bb_dev_null = "/dev/null";
#endif
#ifdef L_bb_path_wtmp_file
#include <utmp.h>
/* This is usually something like "/var/adm/wtmp" or "/var/log/wtmp" */
const char * const bb_path_wtmp_file =
#if defined _PATH_WTMP
_PATH_WTMP;
#elif defined WTMP_FILE
WTMP_FILE;
#else
# error unknown path to wtmp file
#endif
#endif
#ifdef L_bb_common_bufsiz1
char bb_common_bufsiz1[BUFSIZ+1];
#endif

6
loginutils/getty.c
View File

@ -496,9 +496,9 @@ static void update_utmp(char *line)
endutent();
#ifdef CONFIG_FEATURE_WTMP
if (access(_PATH_WTMP, R_OK|W_OK) == -1)
close(creat(_PATH_WTMP, 0664));
updwtmp(_PATH_WTMP, &ut);
if (access(bb_path_wtmp_file, R_OK|W_OK) == -1)
close(creat(bb_path_wtmp_file, 0664));
updwtmp(bb_path_wtmp_file, &ut);
#endif
}

8
loginutils/login.c
View File

@ -463,7 +463,7 @@ static void checkutmp(int picky)
static void setutmp(const char *name, const char *line ATTRIBUTE_UNUSED)
{
time_t t_tmp = (time_t)utent.ut_time;
utent.ut_type = USER_PROCESS;
strncpy(utent.ut_user, name, sizeof utent.ut_user);
time(&t_tmp);
@ -472,10 +472,10 @@ static void setutmp(const char *name, const char *line ATTRIBUTE_UNUSED)
pututline(&utent);
endutent();
#ifdef CONFIG_FEATURE_WTMP
if (access(_PATH_WTMP, R_OK|W_OK) == -1) {
close(creat(_PATH_WTMP, 0664));
if (access(bb_path_wtmp_file, R_OK|W_OK) == -1) {
close(creat(bb_path_wtmp_file, 0664));
}
updwtmp(_PATH_WTMP, &utent);
updwtmp(bb_path_wtmp_file, &utent);
#endif
}
#endif /* CONFIG_FEATURE_UTMP */

8
miscutils/last.c
View File

@ -26,7 +26,11 @@
* Do what we can while still keeping this reasonably small.
* Note: We are assuming the ut_id[] size is fixed at 4. */
#if (UT_LINESIZE != 32) || (UT_NAMESIZE != 32) || (UT_HOSTSIZE != 256)
#if defined UT_LINESIZE \
&& ((UT_LINESIZE != 32) || (UT_NAMESIZE != 32) || (UT_HOSTSIZE != 256))
#error struct utmp member char[] size(s) have changed!
#elif defined __UT_LINESIZE \
&& ((__UT_LINESIZE != 32) || (__UT_NAMESIZE != 64) || (__UT_HOSTSIZE != 256))
#error struct utmp member char[] size(s) have changed!
#endif
@ -39,7 +43,7 @@ int last_main(int argc, char **argv)
if (argc > 1) {
bb_show_usage();
}
file = bb_xopen(_PATH_WTMP, O_RDONLY);
file = bb_xopen(bb_path_wtmp_file, O_RDONLY);
printf("%-10s %-14s %-18s %-12.12s %s\n", "USER", "TTY", "HOST", "LOGIN", "TIME");
while ((n = safe_read(file, (void*)&ut, sizeof(struct utmp))) != 0) {