various legacy and linux-specific stuff

this commit is part of an effort to make more of busybox work
out-of-the-box.

4 files changed, 115 insertions, 1 deletions

diff --git a/include/sys/sendfile.h b/include/sys/sendfile.h
new file mode 100644
index 00000000..f0c6ed05
--- /dev/null
+++ b/include/sys/sendfile.h
@@ -0,0 +1,16 @@
+#ifndef _SYS_INOTIFY_H
+#define _SYS_INOTIFY_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <unistd.h>
+
+ssize_t sendfile(int, int, off_t *, size_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/include/sys/timex.h b/include/sys/timex.h
new file mode 100644
index 00000000..a1689777
--- /dev/null
+++ b/include/sys/timex.h
@@ -0,0 +1,91 @@
+#ifndef _SYS_TIMEX_H
+#define _SYS_TIMEX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/time.h>
+
+struct npttimeval {
+	struct timeval time;
+	long maxerror, esterror;
+};
+
+struct timex {
+	unsigned modes;
+	long offset, freq, maxerror, esterror;
+	int status;
+	long constant, precision, tolerance;
+	struct timeval time;
+	long tick, ppsfreq, jitter;
+	int shift;
+	long stabil, jitcnt, calcnt, errcnt, stbcnt;
+	int tai;
+	int __padding[11];
+};
+
+#define ADJ_OFFSET		0x0001
+#define ADJ_FREQUENCY		0x0002
+#define ADJ_MAXERROR		0x0004
+#define ADJ_ESTERROR		0x0008
+#define ADJ_STATUS		0x0010
+#define ADJ_TIMECONST		0x0020
+#define ADJ_TAI			0x0080
+#define ADJ_MICRO		0x1000
+#define ADJ_NANO		0x2000
+#define ADJ_TICK		0x4000
+#define ADJ_OFFSET_SINGLESHOT	0x8001
+#define ADJ_OFFSET_SS_READ	0xa001
+
+#define MOD_OFFSET	ADJ_OFFSET
+#define MOD_FREQUENCY	ADJ_FREQUENCY
+#define MOD_MAXERROR	ADJ_MAXERROR
+#define MOD_ESTERROR	ADJ_ESTERROR
+#define MOD_STATUS	ADJ_STATUS
+#define MOD_TIMECONST	ADJ_TIMECONST
+#define MOD_CLKB	ADJ_TICK
+#define MOD_CLKA	ADJ_OFFSET_SINGLESHOT
+#define MOD_MICRO	ADJ_MICRO
+#define MOD_NANO	ADJ_NANO
+
+#define STA_PLL		0x0001
+#define STA_PPSFREQ	0x0002
+#define STA_PPSTIME	0x0004
+#define STA_FLL		0x0008
+
+#define STA_INS		0x0010
+#define STA_DEL		0x0020
+#define STA_UNSYNC	0x0040
+#define STA_FREQHOLD	0x0080
+
+#define STA_PPSSIGNAL	0x0100
+#define STA_PPSJITTER	0x0200
+#define STA_PPSWANDER	0x0400
+#define STA_PPSERROR	0x0800
+
+#define STA_CLOCKERR	0x1000
+#define STA_NANO	0x2000
+#define STA_MODE	0x4000
+#define STA_CLK		0x8000
+
+#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
+    STA_PPSERROR | STA_CLOCKERR)
+
+#define TIME_OK		0
+#define TIME_INS	1
+#define TIME_DEL	2
+#define TIME_OOP	3
+#define TIME_WAIT	4
+#define TIME_ERROR	5
+#define TIME_BAD	TIME_ERROR
+
+#define MAXTC		6
+
+int adjtimex(struct timex *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/include/utmp.h b/include/utmp.h
index ff3e45e1..540bec34 100644
--- a/include/utmp.h
+++ b/include/utmp.h
@@ -22,6 +22,8 @@ struct utmp *getutline(const struct utmp *);
 struct utmp *pututline(const struct utmp *);
 void         setutent(void);
 
+void updwtmp(const char *, const struct utmp *);
+
 #define _PATH_UTMP "/dev/null"
 #define _PATH_WTMP "/dev/null"
 
diff --git a/include/utmpx.h b/include/utmpx.h
index 9a2e3075..592c0cd2 100644
--- a/include/utmpx.h
+++ b/include/utmpx.h
@@ -11,11 +11,13 @@ extern "C" {
 
 #include <bits/alltypes.h>
 
+#define UT_LINESIZE 32
+
 struct utmpx
 {
 	short ut_type;
 	pid_t ut_pid;
-	char ut_line[32];
+	char ut_line[UT_LINESIZE];
 	char ut_id[4];
 	char ut_user[32];
 	char ut_host[256];
@@ -36,7 +38,10 @@ struct utmpx *getutxline(const struct utmpx *);
 struct utmpx *pututxline(const struct utmpx *);
 void          setutxent(void);
 
+void updwtmpx(const char *, const struct utmpx *);
+
 #define EMPTY           0
+#define RUN_LVL         1
 #define BOOT_TIME       2
 #define NEW_TIME        3
 #define OLD_TIME        4