fix basic build on OpenBSD

1 files changed, 27 insertions, 2279 deletions

diff --git a/package/busybox/patches/005-bsd-compat.patch b/package/busybox/patches/005-bsd-compat.patch
index 9ec8d5d29..fc7317d20 100644
--- a/package/busybox/patches/005-bsd-compat.patch
+++ b/package/busybox/patches/005-bsd-compat.patch
@@ -1,6 +1,6 @@
 diff -Nur busybox-1.17.1.orig/include/libbb.h busybox-1.17.1/include/libbb.h
---- busybox-1.17.1.orig/include/libbb.h	2010-07-25 00:12:43.000000000 +0200
-+++ busybox-1.17.1/include/libbb.h	2010-07-28 20:13:21.000000000 +0200
+--- busybox-1.17.1.orig/include/libbb.h	Sun Jul 25 00:12:43 2010
++++ busybox-1.17.1/include/libbb.h	Thu Jul 29 20:27:07 2010
 @@ -40,6 +40,7 @@
  /* Try to pull in PATH_MAX */
  #include <limits.h>
@@ -9,1777 +9,17 @@ diff -Nur busybox-1.17.1.orig/include/libbb.h busybox-1.17.1/include/libbb.h
  #ifdef HAVE_MNTENT_H
  #include <mntent.h>
  #endif
-@@ -52,6 +53,7 @@
+@@ -51,6 +52,7 @@
+ #include <selinux/context.h>
  #include <selinux/flask.h>
  #include <selinux/av_permissions.h>
- #endif
 +#endif
+ #endif
  #if ENABLE_LOCALE_SUPPORT
  # include <locale.h>
- #else
-diff -Nur busybox-1.17.1.orig/include/libbb.h.orig busybox-1.17.1/include/libbb.h.orig
---- busybox-1.17.1.orig/include/libbb.h.orig	1970-01-01 01:00:00.000000000 +0100
-+++ busybox-1.17.1/include/libbb.h.orig	2010-07-25 00:12:43.000000000 +0200
-@@ -0,0 +1,1756 @@
-+/* vi: set sw=4 ts=4: */
-+/*
-+ * Busybox main internal header file
-+ *
-+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
-+ * Permission has been granted to redistribute this code under the GPL.
-+ *
-+ * Licensed under the GPL version 2, see the file LICENSE in this tarball.
-+ */
-+#ifndef LIBBB_H
-+#define LIBBB_H 1
-+
-+#include "platform.h"
-+
-+#include <ctype.h>
-+#include <dirent.h>
-+#include <errno.h>
-+#include <fcntl.h>
-+#include <inttypes.h>
-+#include <netdb.h>
-+#include <setjmp.h>
-+#include <signal.h>
-+#include <stdint.h>
-+#include <stdio.h>
-+#include <stdlib.h>
-+#include <stdarg.h>
-+#include <stddef.h>
-+#include <string.h>
-+#include <sys/poll.h>
-+#include <sys/ioctl.h>
-+#include <sys/mman.h>
-+#include <sys/socket.h>
-+#include <sys/stat.h>
-+#include <sys/time.h>
-+#include <sys/types.h>
-+#include <sys/wait.h>
-+#include <termios.h>
-+#include <time.h>
-+#include <unistd.h>
-+/* Try to pull in PATH_MAX */
-+#include <limits.h>
-+#include <sys/param.h>
-+#ifdef HAVE_MNTENT_H
-+#include <mntent.h>
-+#endif
-+#ifdef HAVE_SYS_STATFS_H
-+#include <sys/statfs.h>
-+#endif
-+#if ENABLE_SELINUX
-+#include <selinux/selinux.h>
-+#include <selinux/context.h>
-+#include <selinux/flask.h>
-+#include <selinux/av_permissions.h>
-+#endif
-+#if ENABLE_LOCALE_SUPPORT
-+# include <locale.h>
-+#else
-+# define setlocale(x,y) ((void)0)
-+#endif
-+#ifdef DMALLOC
-+# include <dmalloc.h>
-+#endif
-+#include <pwd.h>
-+#include <grp.h>
-+#if ENABLE_FEATURE_SHADOWPASSWDS
-+# if !ENABLE_USE_BB_SHADOW
-+/* If using busybox's shadow implementation, do not include the shadow.h
-+ * header as the toolchain may not provide it at all.
-+ */
-+#  include <shadow.h>
-+# endif
-+#endif
-+#if defined __FreeBSD__
-+# include <netinet/in.h>
-+# include <arpa/inet.h>
-+#elif defined __APPLE__
-+# include <netinet/in.h>
-+#else
-+# include <arpa/inet.h>
-+# if !defined(__socklen_t_defined) && !defined(_SOCKLEN_T_DECLARED)
-+/* We #define socklen_t *after* includes, otherwise we get
-+ * typedef redefinition errors from system headers
-+ * (in case "is it defined already" detection above failed)
-+ */
-+#  define socklen_t bb_socklen_t
-+   typedef unsigned socklen_t;
-+# endif
-+#endif
-+
-+
-+/* Some libc's forget to declare these, do it ourself */
-+
-+extern char **environ;
-+#if defined(__GLIBC__) && __GLIBC__ < 2
-+int vdprintf(int d, const char *format, va_list ap);
-+#endif
-+/* klogctl is in libc's klog.h, but we cheat and not #include that */
-+int klogctl(int type, char *b, int len);
-+/* This is declared here rather than #including <libgen.h> in order to avoid
-+ * confusing the two versions of basename.  See the dirname/basename man page
-+ * for details. */
-+#if !defined __FreeBSD__
-+char *dirname(char *path);
-+#endif
-+/* Include our own copy of struct sysinfo to avoid binary compatibility
-+ * problems with Linux 2.4, which changed things.  Grumble, grumble. */
-+struct sysinfo {
-+	long uptime;			/* Seconds since boot */
-+	unsigned long loads[3];		/* 1, 5, and 15 minute load averages */
-+	unsigned long totalram;		/* Total usable main memory size */
-+	unsigned long freeram;		/* Available memory size */
-+	unsigned long sharedram;	/* Amount of shared memory */
-+	unsigned long bufferram;	/* Memory used by buffers */
-+	unsigned long totalswap;	/* Total swap space size */
-+	unsigned long freeswap;		/* swap space still available */
-+	unsigned short procs;		/* Number of current processes */
-+	unsigned short pad;			/* Padding needed for m68k */
-+	unsigned long totalhigh;	/* Total high memory size */
-+	unsigned long freehigh;		/* Available high memory size */
-+	unsigned int mem_unit;		/* Memory unit size in bytes */
-+	char _f[20 - 2 * sizeof(long) - sizeof(int)]; /* Padding: libc5 uses this.. */
-+};
-+int sysinfo(struct sysinfo* info);
-+#ifndef PATH_MAX
-+# define PATH_MAX 256
-+#endif
-+#ifndef BUFSIZ
-+# define BUFSIZ 4096
-+#endif
-+
-+
-+/* Make all declarations hidden (-fvisibility flag only affects definitions) */
-+/* (don't include system headers after this until corresponding pop!) */
-+PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
-+
-+
-+#if ENABLE_USE_BB_PWD_GRP
-+# include "pwd_.h"
-+# include "grp_.h"
-+#endif
-+#if ENABLE_FEATURE_SHADOWPASSWDS
-+# if ENABLE_USE_BB_SHADOW
-+#  include "shadow_.h"
-+# endif
-+#endif
-+
-+/* Tested to work correctly with all int types (IIRC :]) */
-+#define MAXINT(T) (T)( \
-+	((T)-1) > 0 \
-+	? (T)-1 \
-+	: (T)~((T)1 << (sizeof(T)*8-1)) \
-+	)
-+
-+#define MININT(T) (T)( \
-+	((T)-1) > 0 \
-+	? (T)0 \
-+	: ((T)1 << (sizeof(T)*8-1)) \
-+	)
-+
-+/* Large file support */
-+/* Note that CONFIG_LFS=y forces bbox to be built with all common ops
-+ * (stat, lseek etc) mapped to "largefile" variants by libc.
-+ * Practically it means that open() automatically has O_LARGEFILE added
-+ * and all filesize/file_offset parameters and struct members are "large"
-+ * (in today's world - signed 64bit). For full support of large files,
-+ * we need a few helper #defines (below) and careful use of off_t
-+ * instead of int/ssize_t. No lseek64(), O_LARGEFILE etc necessary */
-+#if ENABLE_LFS
-+/* CONFIG_LFS is on */
-+# if ULONG_MAX > 0xffffffff
-+/* "long" is long enough on this system */
-+typedef unsigned long uoff_t;
-+#  define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
-+/* usage: sz = BB_STRTOOFF(s, NULL, 10); if (errno || sz < 0) die(); */
-+#  define BB_STRTOOFF bb_strtoul
-+#  define STRTOOFF strtoul
-+/* usage: printf("size: %"OFF_FMT"d (%"OFF_FMT"x)\n", sz, sz); */
-+#  define OFF_FMT "l"
-+# else
-+/* "long" is too short, need "long long" */
-+typedef unsigned long long uoff_t;
-+#  define XATOOFF(a) xatoull_range(a, 0, LLONG_MAX)
-+#  define BB_STRTOOFF bb_strtoull
-+#  define STRTOOFF strtoull
-+#  define OFF_FMT "ll"
-+# endif
-+#else
-+/* CONFIG_LFS is off */
-+# if UINT_MAX == 0xffffffff
-+/* While sizeof(off_t) == sizeof(int), off_t is typedef'ed to long anyway.
-+ * gcc will throw warnings on printf("%d", off_t). Crap... */
-+typedef unsigned long uoff_t;
-+#  define XATOOFF(a) xatoi_u(a)
-+#  define BB_STRTOOFF bb_strtou
-+#  define STRTOOFF strtol
-+#  define OFF_FMT "l"
-+# else
-+typedef unsigned long uoff_t;
-+#  define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
-+#  define BB_STRTOOFF bb_strtoul
-+#  define STRTOOFF strtol
-+#  define OFF_FMT "l"
-+# endif
-+#endif
-+/* scary. better ideas? (but do *test* them first!) */
-+#define OFF_T_MAX  ((off_t)~((off_t)1 << (sizeof(off_t)*8-1)))
-+
-+/* Some useful definitions */
-+#undef FALSE
-+#define FALSE   ((int) 0)
-+#undef TRUE
-+#define TRUE    ((int) 1)
-+#undef SKIP
-+#define SKIP	((int) 2)
-+
-+/* for mtab.c */
-+#define MTAB_GETMOUNTPT '1'
-+#define MTAB_GETDEVICE  '2'
-+
-+#define BUF_SIZE        8192
-+#define EXPAND_ALLOC    1024
-+
-+/* Macros for min/max.  */
-+#ifndef MIN
-+#define	MIN(a,b) (((a)<(b))?(a):(b))
-+#endif
-+
-+#ifndef MAX
-+#define	MAX(a,b) (((a)>(b))?(a):(b))
-+#endif
-+
-+/* buffer allocation schemes */
-+#if ENABLE_FEATURE_BUFFERS_GO_ON_STACK
-+#define RESERVE_CONFIG_BUFFER(buffer,len)  char buffer[len]
-+#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
-+#define RELEASE_CONFIG_BUFFER(buffer)      ((void)0)
-+#else
-+#if ENABLE_FEATURE_BUFFERS_GO_IN_BSS
-+#define RESERVE_CONFIG_BUFFER(buffer,len)  static          char buffer[len]
-+#define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
-+#define RELEASE_CONFIG_BUFFER(buffer)      ((void)0)
-+#else
-+#define RESERVE_CONFIG_BUFFER(buffer,len)  char *buffer = xmalloc(len)
-+#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer = xmalloc(len)
-+#define RELEASE_CONFIG_BUFFER(buffer)      free(buffer)
-+#endif
-+#endif
-+
-+#if defined(__GLIBC__)
-+/* glibc uses __errno_location() to get a ptr to errno */
-+/* We can just memorize it once - no multithreading in busybox :) */
-+extern int *const bb_errno;
-+#undef errno
-+#define errno (*bb_errno)
-+#endif
-+
-+unsigned long long monotonic_ns(void) FAST_FUNC;
-+unsigned long long monotonic_us(void) FAST_FUNC;
-+unsigned long long monotonic_ms(void) FAST_FUNC;
-+unsigned monotonic_sec(void) FAST_FUNC;
-+
-+extern void chomp(char *s) FAST_FUNC;
-+extern void trim(char *s) FAST_FUNC;
-+extern char *skip_whitespace(const char *) FAST_FUNC;
-+extern char *skip_non_whitespace(const char *) FAST_FUNC;
-+extern char *skip_dev_pfx(const char *tty_name) FAST_FUNC;
-+
-+extern char *strrstr(const char *haystack, const char *needle) FAST_FUNC;
-+
-+//TODO: supply a pointer to char[11] buffer (avoid statics)?
-+extern const char *bb_mode_string(mode_t mode) FAST_FUNC;
-+extern int is_directory(const char *name, int followLinks, struct stat *statBuf) FAST_FUNC;
-+enum {	/* DO NOT CHANGE THESE VALUES!  cp.c, mv.c, install.c depend on them. */
-+	FILEUTILS_PRESERVE_STATUS = 1 << 0, /* -p */
-+	FILEUTILS_DEREFERENCE     = 1 << 1, /* !-d */
-+	FILEUTILS_RECUR           = 1 << 2, /* -R */
-+	FILEUTILS_FORCE           = 1 << 3, /* -f */
-+	FILEUTILS_INTERACTIVE     = 1 << 4, /* -i */
-+	FILEUTILS_MAKE_HARDLINK   = 1 << 5, /* -l */
-+	FILEUTILS_MAKE_SOFTLINK   = 1 << 6, /* -s */
-+	FILEUTILS_DEREF_SOFTLINK  = 1 << 7, /* -L */
-+	FILEUTILS_DEREFERENCE_L0  = 1 << 8, /* -H */
-+#if ENABLE_SELINUX
-+	FILEUTILS_PRESERVE_SECURITY_CONTEXT = 1 << 9, /* -c */
-+	FILEUTILS_SET_SECURITY_CONTEXT = 1 << 10,
-+#endif
-+};
-+#define FILEUTILS_CP_OPTSTR "pdRfilsLH" IF_SELINUX("c")
-+extern int remove_file(const char *path, int flags) FAST_FUNC;
-+/* NB: without FILEUTILS_RECUR in flags, it will basically "cat"
-+ * the source, not copy (unless "source" is a directory).
-+ * This makes "cp /dev/null file" and "install /dev/null file" (!!!)
-+ * work coreutils-compatibly. */
-+extern int copy_file(const char *source, const char *dest, int flags) FAST_FUNC;
-+
-+enum {
-+	ACTION_RECURSE        = (1 << 0),
-+	ACTION_FOLLOWLINKS    = (1 << 1),
-+	ACTION_FOLLOWLINKS_L0 = (1 << 2),
-+	ACTION_DEPTHFIRST     = (1 << 3),
-+	/*ACTION_REVERSE      = (1 << 4), - unused */
-+	ACTION_QUIET          = (1 << 5),
-+	ACTION_DANGLING_OK    = (1 << 6),
-+};
-+typedef uint8_t recurse_flags_t;
-+extern int recursive_action(const char *fileName, unsigned flags,
-+	int FAST_FUNC (*fileAction)(const char *fileName, struct stat* statbuf, void* userData, int depth),
-+	int FAST_FUNC (*dirAction)(const char *fileName, struct stat* statbuf, void* userData, int depth),
-+	void* userData, unsigned depth) FAST_FUNC;
-+extern int device_open(const char *device, int mode) FAST_FUNC;
-+enum { GETPTY_BUFSIZE = 16 }; /* more than enough for "/dev/ttyXXX" */
-+extern int xgetpty(char *line) FAST_FUNC;
-+extern int get_console_fd_or_die(void) FAST_FUNC;
-+extern void console_make_active(int fd, const int vt_num) FAST_FUNC;
-+extern char *find_block_device(const char *path) FAST_FUNC;
-+/* bb_copyfd_XX print read/write errors and return -1 if they occur */
-+extern off_t bb_copyfd_eof(int fd1, int fd2) FAST_FUNC;
-+extern off_t bb_copyfd_size(int fd1, int fd2, off_t size) FAST_FUNC;
-+extern void bb_copyfd_exact_size(int fd1, int fd2, off_t size) FAST_FUNC;
-+/* "short" copy can be detected by return value < size */
-+/* this helper yells "short read!" if param is not -1 */
-+extern void complain_copyfd_and_die(off_t sz) NORETURN FAST_FUNC;
-+extern char bb_process_escape_sequence(const char **ptr) FAST_FUNC;
-+/* xxxx_strip version can modify its parameter:
-+ * "/"        -> "/"
-+ * "abc"      -> "abc"
-+ * "abc/def"  -> "def"
-+ * "abc/def/" -> "def" !!
-+ */
-+extern char *bb_get_last_path_component_strip(char *path) FAST_FUNC;
-+/* "abc/def/" -> "" and it never modifies 'path' */
-+extern char *bb_get_last_path_component_nostrip(const char *path) FAST_FUNC;
-+
-+int ndelay_on(int fd) FAST_FUNC;
-+int ndelay_off(int fd) FAST_FUNC;
-+int close_on_exec_on(int fd) FAST_FUNC;
-+void xdup2(int, int) FAST_FUNC;
-+void xmove_fd(int, int) FAST_FUNC;
-+
-+
-+DIR *xopendir(const char *path) FAST_FUNC;
-+DIR *warn_opendir(const char *path) FAST_FUNC;
-+
-+char *xmalloc_realpath(const char *path) FAST_FUNC RETURNS_MALLOC;
-+char *xmalloc_readlink(const char *path) FAST_FUNC RETURNS_MALLOC;
-+char *xmalloc_readlink_or_warn(const char *path) FAST_FUNC RETURNS_MALLOC;
-+/* !RETURNS_MALLOC: it's a realloc-like function */
-+char *xrealloc_getcwd_or_warn(char *cwd) FAST_FUNC;
-+
-+char *xmalloc_follow_symlinks(const char *path) FAST_FUNC RETURNS_MALLOC;
-+
-+
-+enum {
-+	/* bb_signals(BB_FATAL_SIGS, handler) catches all signals which
-+	 * otherwise would kill us, except for those resulting from bugs:
-+	 * SIGSEGV, SIGILL, SIGFPE.
-+	 * Other fatal signals not included (TODO?):
-+	 * SIGBUS   Bus error (bad memory access)
-+	 * SIGPOLL  Pollable event. Synonym of SIGIO
-+	 * SIGPROF  Profiling timer expired
-+	 * SIGSYS   Bad argument to routine
-+	 * SIGTRAP  Trace/breakpoint trap
-+	 *
-+	 * The only known arch with some of these sigs not fitting
-+	 * into 32 bits is parisc (SIGXCPU=33, SIGXFSZ=34, SIGSTKFLT=36).
-+	 * Dance around with long long to guard against that...
-+	 */
-+	BB_FATAL_SIGS = (int)(0
-+		+ (1LL << SIGHUP)
-+		+ (1LL << SIGINT)
-+		+ (1LL << SIGTERM)
-+		+ (1LL << SIGPIPE)   // Write to pipe with no readers
-+		+ (1LL << SIGQUIT)   // Quit from keyboard
-+		+ (1LL << SIGABRT)   // Abort signal from abort(3)
-+		+ (1LL << SIGALRM)   // Timer signal from alarm(2)
-+		+ (1LL << SIGVTALRM) // Virtual alarm clock
-+		+ (1LL << SIGXCPU)   // CPU time limit exceeded
-+		+ (1LL << SIGXFSZ)   // File size limit exceeded
-+		+ (1LL << SIGUSR1)   // Yes kids, these are also fatal!
-+		+ (1LL << SIGUSR2)
-+		+ 0),
-+};
-+void bb_signals(int sigs, void (*f)(int)) FAST_FUNC;
-+/* Unlike signal() and bb_signals, sets handler with sigaction()
-+ * and in a way that while signal handler is run, no other signals
-+ * will be blocked; syscalls will not be restarted: */
-+void bb_signals_recursive_norestart(int sigs, void (*f)(int)) FAST_FUNC;
-+/* syscalls like read() will be interrupted with EINTR: */
-+void signal_no_SA_RESTART_empty_mask(int sig, void (*handler)(int)) FAST_FUNC;
-+/* syscalls like read() won't be interrupted (though select/poll will be): */
-+void signal_SA_RESTART_empty_mask(int sig, void (*handler)(int)) FAST_FUNC;
-+void wait_for_any_sig(void) FAST_FUNC;
-+void kill_myself_with_sig(int sig) NORETURN FAST_FUNC;
-+void sig_block(int sig) FAST_FUNC;
-+void sig_unblock(int sig) FAST_FUNC;
-+/* Will do sigaction(signum, act, NULL): */
-+int sigaction_set(int sig, const struct sigaction *act) FAST_FUNC;
-+/* SIG_BLOCK/SIG_UNBLOCK all signals: */
-+int sigprocmask_allsigs(int how) FAST_FUNC;
-+/* Standard handler which just records signo */
-+extern smallint bb_got_signal;
-+void record_signo(int signo); /* not FAST_FUNC! */
-+
-+
-+void xsetgid(gid_t gid) FAST_FUNC;
-+void xsetuid(uid_t uid) FAST_FUNC;
-+void xchdir(const char *path) FAST_FUNC;
-+void xchroot(const char *path) FAST_FUNC;
-+void xsetenv(const char *key, const char *value) FAST_FUNC;
-+void bb_unsetenv(const char *key) FAST_FUNC;
-+void bb_unsetenv_and_free(char *key) FAST_FUNC;
-+void xunlink(const char *pathname) FAST_FUNC;
-+void xstat(const char *pathname, struct stat *buf) FAST_FUNC;
-+int xopen(const char *pathname, int flags) FAST_FUNC;
-+int xopen_nonblocking(const char *pathname) FAST_FUNC;
-+int xopen3(const char *pathname, int flags, int mode) FAST_FUNC;
-+int open_or_warn(const char *pathname, int flags) FAST_FUNC;
-+int open3_or_warn(const char *pathname, int flags, int mode) FAST_FUNC;
-+int open_or_warn_stdin(const char *pathname) FAST_FUNC;
-+void xrename(const char *oldpath, const char *newpath) FAST_FUNC;
-+int rename_or_warn(const char *oldpath, const char *newpath) FAST_FUNC;
-+off_t xlseek(int fd, off_t offset, int whence) FAST_FUNC;
-+off_t fdlength(int fd) FAST_FUNC;
-+
-+uoff_t FAST_FUNC get_volume_size_in_bytes(int fd,
-+                const char *override,
-+                unsigned override_units,
-+                int extend);
-+
-+void xpipe(int filedes[2]) FAST_FUNC;
-+/* In this form code with pipes is much more readable */
-+struct fd_pair { int rd; int wr; };
-+#define piped_pair(pair)  pipe(&((pair).rd))
-+#define xpiped_pair(pair) xpipe(&((pair).rd))
-+
-+/* Useful for having small structure members/global variables */
-+typedef int8_t socktype_t;
-+typedef int8_t family_t;
-+struct BUG_too_small {
-+	char BUG_socktype_t_too_small[(0
-+			| SOCK_STREAM
-+			| SOCK_DGRAM
-+			| SOCK_RDM
-+			| SOCK_SEQPACKET
-+			| SOCK_RAW
-+			) <= 127 ? 1 : -1];
-+	char BUG_family_t_too_small[(0
-+			| AF_UNSPEC
-+			| AF_INET
-+			| AF_INET6
-+			| AF_UNIX
-+#ifdef AF_PACKET
-+			| AF_PACKET
-+#endif
-+#ifdef AF_NETLINK
-+			| AF_NETLINK
-+#endif
-+			/* | AF_DECnet */
-+			/* | AF_IPX */
-+			) <= 127 ? 1 : -1];
-+};
-+
-+
-+void parse_datestr(const char *date_str, struct tm *ptm) FAST_FUNC;
-+time_t validate_tm_time(const char *date_str, struct tm *ptm) FAST_FUNC;
-+
-+
-+int xsocket(int domain, int type, int protocol) FAST_FUNC;
-+void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen) FAST_FUNC;
-+void xlisten(int s, int backlog) FAST_FUNC;
-+void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen) FAST_FUNC;
-+ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
-+				socklen_t tolen) FAST_FUNC;
-+/* SO_REUSEADDR allows a server to rebind to an address that is already
-+ * "in use" by old connections to e.g. previous server instance which is
-+ * killed or crashed. Without it bind will fail until all such connections
-+ * time out. Linux does not allow multiple live binds on same ip:port
-+ * regardless of SO_REUSEADDR (unlike some other flavors of Unix).
-+ * Turn it on before you call bind(). */
-+void setsockopt_reuseaddr(int fd) FAST_FUNC; /* On Linux this never fails. */
-+int setsockopt_broadcast(int fd) FAST_FUNC;
-+int setsockopt_bindtodevice(int fd, const char *iface) FAST_FUNC;
-+/* NB: returns port in host byte order */
-+unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port) FAST_FUNC;
-+typedef struct len_and_sockaddr {
-+	socklen_t len;
-+	union {
-+		struct sockaddr sa;
-+		struct sockaddr_in sin;
-+#if ENABLE_FEATURE_IPV6
-+		struct sockaddr_in6 sin6;
-+#endif
-+	} u;
-+} len_and_sockaddr;
-+enum {
-+	LSA_LEN_SIZE = offsetof(len_and_sockaddr, u),
-+	LSA_SIZEOF_SA = sizeof(
-+		union {
-+			struct sockaddr sa;
-+			struct sockaddr_in sin;
-+#if ENABLE_FEATURE_IPV6
-+			struct sockaddr_in6 sin6;
-+#endif
-+		}
-+	)
-+};
-+/* Create stream socket, and allocate suitable lsa.
-+ * (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6))
-+ * af == AF_UNSPEC will result in trying to create IPv6 socket,
-+ * and if kernel doesn't support it, fall back to IPv4.
-+ * This is useful if you plan to bind to resulting local lsa.
-+ */
-+#if ENABLE_FEATURE_IPV6
-+int xsocket_type(len_and_sockaddr **lsap, int af, int sock_type) FAST_FUNC;
-+#else
-+int xsocket_type(len_and_sockaddr **lsap, int sock_type) FAST_FUNC;
-+#define xsocket_type(lsap, af, sock_type) xsocket_type((lsap), (sock_type))
-+#endif
-+int xsocket_stream(len_and_sockaddr **lsap) FAST_FUNC;
-+/* Create server socket bound to bindaddr:port. bindaddr can be NULL,
-+ * numeric IP ("N.N.N.N") or numeric IPv6 address,
-+ * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
-+ * Only if there is no suffix, port argument is used */
-+/* NB: these set SO_REUSEADDR before bind */
-+int create_and_bind_stream_or_die(const char *bindaddr, int port) FAST_FUNC;
-+int create_and_bind_dgram_or_die(const char *bindaddr, int port) FAST_FUNC;
-+/* Create client TCP socket connected to peer:port. Peer cannot be NULL.
-+ * Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname,
-+ * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
-+ * If there is no suffix, port argument is used */
-+int create_and_connect_stream_or_die(const char *peer, int port) FAST_FUNC;
-+/* Connect to peer identified by lsa */
-+int xconnect_stream(const len_and_sockaddr *lsa) FAST_FUNC;
-+/* Get local address of bound or accepted socket */
-+len_and_sockaddr *get_sock_lsa(int fd) FAST_FUNC RETURNS_MALLOC;
-+/* Get remote address of connected or accepted socket */
-+len_and_sockaddr *get_peer_lsa(int fd) FAST_FUNC RETURNS_MALLOC;
-+/* Return malloc'ed len_and_sockaddr with socket address of host:port
-+ * Currently will return IPv4 or IPv6 sockaddrs only
-+ * (depending on host), but in theory nothing prevents e.g.
-+ * UNIX socket address being returned, IPX sockaddr etc...
-+ * On error does bb_error_msg and returns NULL */
-+len_and_sockaddr* host2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC;
-+/* Version which dies on error */
-+len_and_sockaddr* xhost2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC;
-+len_and_sockaddr* xdotted2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC;
-+/* Same, useful if you want to force family (e.g. IPv6) */
-+#if !ENABLE_FEATURE_IPV6
-+#define host_and_af2sockaddr(host, port, af) host2sockaddr((host), (port))
-+#define xhost_and_af2sockaddr(host, port, af) xhost2sockaddr((host), (port))
-+#else
-+len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af) FAST_FUNC RETURNS_MALLOC;
-+len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af) FAST_FUNC RETURNS_MALLOC;
-+#endif
-+/* Assign sin[6]_port member if the socket is an AF_INET[6] one,
-+ * otherwise no-op. Useful for ftp.
-+ * NB: does NOT do htons() internally, just direct assignment. */
-+void set_nport(len_and_sockaddr *lsa, unsigned port) FAST_FUNC;
-+/* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */
-+int get_nport(const struct sockaddr *sa) FAST_FUNC;
-+/* Reverse DNS. Returns NULL on failure. */
-+char* xmalloc_sockaddr2host(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
-+/* This one doesn't append :PORTNUM */
-+char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
-+/* This one also doesn't fall back to dotted IP (returns NULL) */
-+char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
-+/* inet_[ap]ton on steroids */
-+char* xmalloc_sockaddr2dotted(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
-+char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC;
-+// "old" (ipv4 only) API
-+// users: traceroute.c hostname.c - use _list_ of all IPs
-+struct hostent *xgethostbyname(const char *name) FAST_FUNC;
-+// Also mount.c and inetd.c are using gethostbyname(),
-+// + inet_common.c has additional IPv4-only stuff
-+
-+
-+void socket_want_pktinfo(int fd) FAST_FUNC;
-+ssize_t send_to_from(int fd, void *buf, size_t len, int flags,
-+		const struct sockaddr *to,
-+		const struct sockaddr *from,
-+		socklen_t tolen) FAST_FUNC;
-+ssize_t recv_from_to(int fd, void *buf, size_t len, int flags,
-+		struct sockaddr *from,
-+		struct sockaddr *to,
-+		socklen_t sa_size) FAST_FUNC;
-+
-+
-+char *xstrdup(const char *s) FAST_FUNC RETURNS_MALLOC;
-+char *xstrndup(const char *s, int n) FAST_FUNC RETURNS_MALLOC;
-+void overlapping_strcpy(char *dst, const char *src) FAST_FUNC;
-+char *safe_strncpy(char *dst, const char *src, size_t size) FAST_FUNC;
-+char *strncpy_IFNAMSIZ(char *dst, const char *src) FAST_FUNC;
-+/* Guaranteed to NOT be a macro (smallest code). Saves nearly 2k on uclibc.
-+ * But potentially slow, don't use in one-billion-times loops */
-+int bb_putchar(int ch) FAST_FUNC;
-+/* Note: does not use stdio, writes to fd 2 directly */
-+int bb_putchar_stderr(char ch) FAST_FUNC;
-+char *xasprintf(const char *format, ...) __attribute__ ((format(printf, 1, 2))) FAST_FUNC RETURNS_MALLOC;
-+// gcc-4.1.1 still isn't good enough at optimizing it
-+// (+200 bytes compared to macro)
-+//static ALWAYS_INLINE
-+//int LONE_DASH(const char *s) { return s[0] == '-' && !s[1]; }
-+//static ALWAYS_INLINE
-+//int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; }
-+#define LONE_DASH(s)     ((s)[0] == '-' && !(s)[1])
-+#define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
-+#define LONE_CHAR(s,c)     ((s)[0] == (c) && !(s)[1])
-+#define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1])
-+#define DOT_OR_DOTDOT(s) ((s)[0] == '.' && (!(s)[1] || ((s)[1] == '.' && !(s)[2])))
-+
-+typedef struct uni_stat_t {
-+	unsigned byte_count;
-+	unsigned unicode_count;
-+	unsigned unicode_width;
-+} uni_stat_t;
-+/* Returns a string with unprintable chars replaced by '?' or
-+ * SUBST_WCHAR. This function is unicode-aware. */
-+const char* FAST_FUNC printable_string(uni_stat_t *stats, const char *str);
-+/* Prints unprintable char ch as ^C or M-c to file
-+ * (M-c is used only if ch is ORed with PRINTABLE_META),
-+ * else it is printed as-is (except for ch = 0x9b) */
-+enum { PRINTABLE_META = 0x100 };
-+void fputc_printable(int ch, FILE *file) FAST_FUNC;
-+
-+/* dmalloc will redefine these to it's own implementation. It is safe
-+ * to have the prototypes here unconditionally.  */
-+void *malloc_or_warn(size_t size) FAST_FUNC RETURNS_MALLOC;
-+void *xmalloc(size_t size) FAST_FUNC RETURNS_MALLOC;
-+void *xzalloc(size_t size) FAST_FUNC RETURNS_MALLOC;
-+void *xrealloc(void *old, size_t size) FAST_FUNC;
-+/* After xrealloc_vector(v, 4, idx) it's ok to use
-+ * at least v[idx] and v[idx+1], for all idx values.
-+ * shift specifies how many new elements are added (1: 2, 2: 4... 8: 256...)
-+ * when all elements are used up. New elements are zeroed out. */
-+#define xrealloc_vector(vector, shift, idx) \
-+	xrealloc_vector_helper((vector), (sizeof((vector)[0]) << 8) + (shift), (idx))
-+void* xrealloc_vector_helper(void *vector, unsigned sizeof_and_shift, int idx) FAST_FUNC;
-+
-+
-+extern ssize_t safe_read(int fd, void *buf, size_t count) FAST_FUNC;
-+extern ssize_t nonblock_safe_read(int fd, void *buf, size_t count) FAST_FUNC;
-+// NB: will return short read on error, not -1,
-+// if some data was read before error occurred
-+extern ssize_t full_read(int fd, void *buf, size_t count) FAST_FUNC;
-+extern void xread(int fd, void *buf, size_t count) FAST_FUNC;
-+extern unsigned char xread_char(int fd) FAST_FUNC;
-+extern ssize_t read_close(int fd, void *buf, size_t maxsz) FAST_FUNC;
-+extern ssize_t open_read_close(const char *filename, void *buf, size_t maxsz) FAST_FUNC;
-+// Reads one line a-la fgets (but doesn't save terminating '\n').
-+// Reads byte-by-byte. Useful when it is important to not read ahead.
-+// Bytes are appended to pfx (which must be malloced, or NULL).
-+extern char *xmalloc_reads(int fd, char *pfx, size_t *maxsz_p) FAST_FUNC;
-+/* Reads block up to *maxsz_p (default: INT_MAX - 4095) */
-+extern void *xmalloc_read(int fd, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
-+/* Returns NULL if file can't be opened (default max size: INT_MAX - 4095) */
-+extern void *xmalloc_open_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
-+/* Autodetects gzip/bzip2 formats. fd may be in the middle of the file! */
-+#if ENABLE_FEATURE_SEAMLESS_LZMA \
-+ || ENABLE_FEATURE_SEAMLESS_BZ2 \
-+ || ENABLE_FEATURE_SEAMLESS_GZ \
-+ /* || ENABLE_FEATURE_SEAMLESS_Z */
-+extern void setup_unzip_on_fd(int fd /*, int fail_if_not_detected*/) FAST_FUNC;
-+#else
-+# define setup_unzip_on_fd(...) ((void)0)
-+#endif
-+/* Autodetects .gz etc */
-+extern int open_zipped(const char *fname) FAST_FUNC;
-+extern void *xmalloc_open_zipped_read_close(const char *fname, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
-+/* Never returns NULL */
-+extern void *xmalloc_xopen_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
-+
-+extern ssize_t safe_write(int fd, const void *buf, size_t count) FAST_FUNC;
-+// NB: will return short write on error, not -1,
-+// if some data was written before error occurred
-+extern ssize_t full_write(int fd, const void *buf, size_t count) FAST_FUNC;
-+extern void xwrite(int fd, const void *buf, size_t count) FAST_FUNC;
-+extern void xwrite_str(int fd, const char *str) FAST_FUNC;
-+extern ssize_t full_write1_str(const char *str) FAST_FUNC;
-+extern ssize_t full_write2_str(const char *str) FAST_FUNC;
-+extern void xopen_xwrite_close(const char* file, const char *str) FAST_FUNC;
-+
-+/* Close fd, but check for failures (some types of write errors) */
-+extern void xclose(int fd) FAST_FUNC;
-+
-+/* Reads and prints to stdout till eof, then closes FILE. Exits on error: */
-+extern void xprint_and_close_file(FILE *file) FAST_FUNC;
-+
-+extern char *bb_get_chunk_from_file(FILE *file, int *end) FAST_FUNC;
-+extern char *bb_get_chunk_with_continuation(FILE *file, int *end, int *lineno) FAST_FUNC;
-+/* Reads up to (and including) TERMINATING_STRING: */
-+extern char *xmalloc_fgets_str(FILE *file, const char *terminating_string) FAST_FUNC RETURNS_MALLOC;
-+/* Same, with limited max size, and returns the length (excluding NUL): */
-+extern char *xmalloc_fgets_str_len(FILE *file, const char *terminating_string, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
-+/* Chops off TERMINATING_STRING from the end: */
-+extern char *xmalloc_fgetline_str(FILE *file, const char *terminating_string) FAST_FUNC RETURNS_MALLOC;
-+/* Reads up to (and including) "\n" or NUL byte: */
-+extern char *xmalloc_fgets(FILE *file) FAST_FUNC RETURNS_MALLOC;
-+/* Chops off '\n' from the end, unlike fgets: */
-+extern char *xmalloc_fgetline(FILE *file) FAST_FUNC RETURNS_MALLOC;
-+/* Same, but doesn't try to conserve space (may have some slack after the end) */
-+/* extern char *xmalloc_fgetline_fast(FILE *file) FAST_FUNC RETURNS_MALLOC; */
-+
-+void die_if_ferror(FILE *file, const char *msg) FAST_FUNC;
-+void die_if_ferror_stdout(void) FAST_FUNC;
-+int fflush_all(void) FAST_FUNC;
-+void fflush_stdout_and_exit(int retval) NORETURN FAST_FUNC;
-+int fclose_if_not_stdin(FILE *file) FAST_FUNC;
-+FILE* xfopen(const char *filename, const char *mode) FAST_FUNC;
-+/* Prints warning to stderr and returns NULL on failure: */
-+FILE* fopen_or_warn(const char *filename, const char *mode) FAST_FUNC;
-+/* "Opens" stdin if filename is special, else just opens file: */
-+FILE* xfopen_stdin(const char *filename) FAST_FUNC;
-+FILE* fopen_or_warn_stdin(const char *filename) FAST_FUNC;
-+FILE* fopen_for_read(const char *path) FAST_FUNC;
-+FILE* xfopen_for_read(const char *path) FAST_FUNC;
-+FILE* fopen_for_write(const char *path) FAST_FUNC;
-+FILE* xfopen_for_write(const char *path) FAST_FUNC;
-+FILE* xfdopen_for_read(int fd) FAST_FUNC;
-+FILE* xfdopen_for_write(int fd) FAST_FUNC;
-+
-+int bb_pstrcmp(const void *a, const void *b) /* not FAST_FUNC! */;
-+void qsort_string_vector(char **sv, unsigned count) FAST_FUNC;
-+
-+/* Wrapper which restarts poll on EINTR or ENOMEM.
-+ * On other errors complains [perror("poll")] and returns.
-+ * Warning! May take (much) longer than timeout_ms to return!
-+ * If this is a problem, use bare poll and open-code EINTR/ENOMEM handling */
-+int safe_poll(struct pollfd *ufds, nfds_t nfds, int timeout_ms) FAST_FUNC;
-+
-+char *safe_gethostname(void) FAST_FUNC;
-+char *safe_getdomainname(void) FAST_FUNC;
-+
-+/* Convert each alpha char in str to lower-case */
-+char* str_tolower(char *str) FAST_FUNC;
-+
-+char *utoa(unsigned n) FAST_FUNC;
-+char *itoa(int n) FAST_FUNC;
-+/* Returns a pointer past the formatted number, does NOT null-terminate */
-+char *utoa_to_buf(unsigned n, char *buf, unsigned buflen) FAST_FUNC;
-+char *itoa_to_buf(int n, char *buf, unsigned buflen) FAST_FUNC;
-+/* Intelligent formatters of bignums */
-+void smart_ulltoa4(unsigned long long ul, char buf[5], const char *scale) FAST_FUNC;
-+void smart_ulltoa5(unsigned long long ul, char buf[5], const char *scale) FAST_FUNC;
-+/* If block_size == 0, display size without fractional part,
-+ * else display (size * block_size) with one decimal digit.
-+ * If display_unit == 0, show value no bigger than 1024 with suffix (K,M,G...),
-+ * else divide by display_unit and do not use suffix. */
-+#define HUMAN_READABLE_MAX_WIDTH      7  /* "1024.0G" */
-+#define HUMAN_READABLE_MAX_WIDTH_STR "7"
-+//TODO: provide pointer to buf (avoid statics)?
-+const char *make_human_readable_str(unsigned long long size,
-+		unsigned long block_size, unsigned long display_unit) FAST_FUNC;
-+/* Put a string of hex bytes ("1b2e66fe"...), return advanced pointer */
-+char *bin2hex(char *buf, const char *cp, int count) FAST_FUNC;
-+/* Reverse */
-+char* hex2bin(char *dst, const char *str, int count) FAST_FUNC;
-+
-+/* Generate a UUID */
-+void generate_uuid(uint8_t *buf) FAST_FUNC;
-+
-+/* Last element is marked by mult == 0 */
-+struct suffix_mult {
-+	char suffix[4];
-+	unsigned mult;
-+};
-+#include "xatonum.h"
-+/* Specialized: */
-+/* Using xatoi() instead of naive atoi() is not always convenient -
-+ * in many places people want *non-negative* values, but store them
-+ * in signed int. Therefore we need this one:
-+ * dies if input is not in [0, INT_MAX] range. Also will reject '-0' etc */
-+int xatoi_u(const char *numstr) FAST_FUNC;
-+/* Useful for reading port numbers */
-+uint16_t xatou16(const char *numstr) FAST_FUNC;
-+
-+
-+/* These parse entries in /etc/passwd and /etc/group.  This is desirable
-+ * for BusyBox since we want to avoid using the glibc NSS stuff, which
-+ * increases target size and is often not needed on embedded systems.  */
-+long xuname2uid(const char *name) FAST_FUNC;
-+long xgroup2gid(const char *name) FAST_FUNC;
-+/* wrapper: allows string to contain numeric uid or gid */
-+unsigned long get_ug_id(const char *s, long FAST_FUNC (*xname2id)(const char *)) FAST_FUNC;
-+/* from chpst. Does not die, returns 0 on failure */
-+struct bb_uidgid_t {
-+	uid_t uid;
-+	gid_t gid;
-+};
-+/* always sets uid and gid */
-+int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok) FAST_FUNC;
-+/* always sets uid and gid, allows numeric; exits on failure */
-+void xget_uidgid(struct bb_uidgid_t*, const char*) FAST_FUNC;
-+/* chown-like handling of "user[:[group]" */
-+void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group) FAST_FUNC;
-+struct passwd* xgetpwnam(const char *name) FAST_FUNC;
-+struct group* xgetgrnam(const char *name) FAST_FUNC;
-+struct passwd* xgetpwuid(uid_t uid) FAST_FUNC;
-+struct group* xgetgrgid(gid_t gid) FAST_FUNC;
-+char* xuid2uname(uid_t uid) FAST_FUNC;
-+char* xgid2group(gid_t gid) FAST_FUNC;
-+char* uid2uname(uid_t uid) FAST_FUNC;
-+char* gid2group(gid_t gid) FAST_FUNC;
-+char* uid2uname_utoa(long uid) FAST_FUNC;
-+char* gid2group_utoa(long gid) FAST_FUNC;
-+/* versions which cache results (useful for ps, ls etc) */
-+const char* get_cached_username(uid_t uid) FAST_FUNC;
-+const char* get_cached_groupname(gid_t gid) FAST_FUNC;
-+void clear_username_cache(void) FAST_FUNC;
-+/* internally usernames are saved in fixed-sized char[] buffers */
-+enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
-+#if ENABLE_FEATURE_CHECK_NAMES
-+void die_if_bad_username(const char* name) FAST_FUNC;
-+#else
-+#define die_if_bad_username(name) ((void)(name))
-+#endif
-+
-+#if ENABLE_FEATURE_UTMP
-+void FAST_FUNC write_new_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname);
-+void FAST_FUNC update_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname);
-+#else
-+# define write_new_utmp(pid, new_type, tty_name, username, hostname) ((void)0)
-+# define update_utmp(pid, new_type, tty_name, username, hostname) ((void)0)
-+#endif
-+
-+int execable_file(const char *name) FAST_FUNC;
-+char *find_execable(const char *filename, char **PATHp) FAST_FUNC;
-+int exists_execable(const char *filename) FAST_FUNC;
-+
-+/* BB_EXECxx always execs (it's not doing NOFORK/NOEXEC stuff),
-+ * but it may exec busybox and call applet instead of searching PATH.
-+ */
-+#if ENABLE_FEATURE_PREFER_APPLETS
-+int bb_execvp(const char *file, char *const argv[]) FAST_FUNC;
-+#define BB_EXECVP(prog,cmd) bb_execvp(prog,cmd)
-+#define BB_EXECLP(prog,cmd,...) \
-+	execlp((find_applet_by_name(prog) >= 0) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
-+		cmd, __VA_ARGS__)
-+#else
-+#define BB_EXECVP(prog,cmd)     execvp(prog,cmd)
-+#define BB_EXECLP(prog,cmd,...) execlp(prog,cmd, __VA_ARGS__)
-+#endif
-+int BB_EXECVP_or_die(char **argv) NORETURN FAST_FUNC;
-+
-+/* xvfork() can't be a _function_, return after vfork mangles stack
-+ * in the parent. It must be a macro. */
-+#define xvfork() \
-+({ \
-+	pid_t bb__xvfork_pid = vfork(); \
-+	if (bb__xvfork_pid < 0) \
-+		bb_perror_msg_and_die("vfork"); \
-+	bb__xvfork_pid; \
-+})
-+#if BB_MMU
-+pid_t xfork(void) FAST_FUNC;
-+#endif
-+
-+/* NOMMU friendy fork+exec: */
-+pid_t spawn(char **argv) FAST_FUNC;
-+pid_t xspawn(char **argv) FAST_FUNC;
-+
-+pid_t safe_waitpid(pid_t pid, int *wstat, int options) FAST_FUNC;
-+pid_t wait_any_nohang(int *wstat) FAST_FUNC;
-+/* wait4pid: unlike waitpid, waits ONLY for one process.
-+ * Returns sig + 0x180 if child is killed by signal.
-+ * It's safe to pass negative 'pids' from failed [v]fork -
-+ * wait4pid will return -1 (and will not clobber [v]fork's errno).
-+ * IOW: rc = wait4pid(spawn(argv));
-+ *      if (rc < 0) bb_perror_msg("%s", argv[0]);
-+ *      if (rc > 0) bb_error_msg("exit code: %d", rc & 0xff);
-+ */