* 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.
+ * Permission has been granted to redistribute this code under GPL.
*
- * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
#ifndef LIBBB_H
#define LIBBB_H 1
#include <netdb.h>
#include <setjmp.h>
#include <signal.h>
+#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/socket.h>
-#if defined __FreeBSD__
-# include <netinet/in.h>
-# include <arpa/inet.h>
-#endif
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
+#ifndef major
+# include <sys/sysmacros.h>
+#endif
#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>
-#ifndef PATH_MAX
-# define PATH_MAX 256
-#endif
-
-#ifndef BUFSIZ
-# define BUFSIZ 4096
-#endif
-
#ifdef HAVE_MNTENT_H
-#include <mntent.h>
+# include <mntent.h>
#endif
-
#ifdef HAVE_SYS_STATFS_H
-#include <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>
+# include <selinux/selinux.h>
+# include <selinux/context.h>
+# include <selinux/flask.h>
+# include <selinux/av_permissions.h>
+#endif
+#if ENABLE_FEATURE_UTMP
+# include <utmp.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
# include <shadow.h>
# endif
#endif
+/* Just in case libc doesn't define some of these... */
+#ifndef _PATH_PASSWD
+#define _PATH_PASSWD "/etc/passwd"
+#endif
+#ifndef _PATH_GROUP
+#define _PATH_GROUP "/etc/group"
+#endif
+#ifndef _PATH_SHADOW
+#define _PATH_SHADOW "/etc/shadow"
+#endif
+#ifndef _PATH_GSHADOW
+#define _PATH_GSHADOW "/etc/gshadow"
+#endif
+#if defined __FreeBSD__ || defined __OpenBSD__
+# 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
+#ifndef HAVE_CLEARENV
+# define clearenv() do { if (environ) environ[0] = NULL; } while (0)
+#endif
+#ifndef HAVE_FDATASYNC
+# define fdatasync fsync
+#endif
+#ifndef HAVE_XTABS
+# define XTABS TAB3
+#endif
+
/* Some libc's forget to declare these, do it ourself */
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) */
/* 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 XATOOFF(a) xatoi_positive(a)
# define BB_STRTOOFF bb_strtou
# define STRTOOFF strtol
# define OFF_FMT "l"
/* Macros for min/max. */
#ifndef MIN
-#define MIN(a,b) (((a)<(b))?(a):(b))
+#define MIN(a,b) (((a)<(b))?(a):(b))
#endif
#ifndef MAX
-#define MAX(a,b) (((a)>(b))?(a):(b))
+#define MAX(a,b) (((a)>(b))?(a):(b))
#endif
/* buffer allocation schemes */
#define errno (*bb_errno)
#endif
+#if !(ULONG_MAX > 0xffffffff)
+/* Only 32-bit CPUs need this, 64-bit ones use inlined version */
+uint64_t bb_bswap_64(uint64_t x) FAST_FUNC;
+#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,
- FILEUTILS_DEREFERENCE = 2,
- FILEUTILS_RECUR = 4,
- FILEUTILS_FORCE = 8,
- FILEUTILS_INTERACTIVE = 0x10,
- FILEUTILS_MAKE_HARDLINK = 0x20,
- FILEUTILS_MAKE_SOFTLINK = 0x40,
- FILEUTILS_DEREF_SOFTLINK = 0x80,
+ 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 = 0x100,
- FILEUTILS_SET_SECURITY_CONTEXT = 0x200
+ FILEUTILS_PRESERVE_SECURITY_CONTEXT = 1 << 9, /* -c */
+ FILEUTILS_SET_SECURITY_CONTEXT = 1 << 10,
#endif
};
-#define FILEUTILS_CP_OPTSTR "pdRfilsL" IF_SELINUX("c")
+#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 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;
+char* strcpy_and_process_escape_sequences(char *dst, const char *src) FAST_FUNC;
/* xxxx_strip version can modify its parameter:
* "/" -> "/"
* "abc" -> "abc"
/* "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 ndelay_on(int fd) FAST_FUNC;
+void ndelay_off(int fd) FAST_FUNC;
+void 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;
-/* UNUSED: char *xmalloc_realpath(const char *path) FAST_FUNC RETURNS_MALLOC; */
+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 */
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;
+void xfstat(int fd, struct stat *buf, const char *errmsg) 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;
+int xopen_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;
+int xmkstemp(char *template) 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; };
};
-void parse_datestr(const char *date_str, struct tm *tm_time) FAST_FUNC;
-time_t validate_tm_time(const char *date_str, struct tm *tm_time) FAST_FUNC;
+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;
/* 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, IPv4.
+ * 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;
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.
/* 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;
+void set_nport(struct sockaddr *sa, 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. */
/* 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;
-/* Prints unprintable chars 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;
// gcc-4.1.1 still isn't good enough at optimizing it
// (+200 bytes compared to macro)
//static ALWAYS_INLINE
#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;
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;
+extern ssize_t nonblock_immune_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;
// 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;
+extern char *xmalloc_reads(int fd, 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;
+/* Never returns NULL */
+extern void *xmalloc_xopen_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,
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) */
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_ulltoa4(unsigned long long ul, char buf[4], 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, add suffix (K,M,G...),
+ * 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;
};
#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;
+ * dies if input is not in [0, INT_MAX] range. Also will reject '-0' etc.
+ * It should really be named xatoi_nonnegative (since it allows 0),
+ * but that would be too long.
+ */
+int xatoi_positive(const char *numstr) FAST_FUNC;
+
/* Useful for reading port numbers */
uint16_t xatou16(const char *numstr) 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;
+char* uid2uname_utoa(uid_t uid) FAST_FUNC;
+char* gid2group_utoa(gid_t 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) };
+enum { USERNAME_MAX_SIZE = 32 - sizeof(uid_t) };
#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;
* 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)
+int BB_EXECVP(const char *file, char *const argv[]) FAST_FUNC;
#define BB_EXECLP(prog,cmd,...) \
- execlp((find_applet_by_name(prog) >= 0) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
- cmd, __VA_ARGS__)
+ do { \
+ if (find_applet_by_name(prog) >= 0) \
+ execlp(bb_busybox_exec_path, cmd, __VA_ARGS__); \
+ execlp(prog, cmd, __VA_ARGS__); \
+ } while (0)
#else
#define BB_EXECVP(prog,cmd) execvp(prog,cmd)
-#define BB_EXECLP(prog,cmd,...) execlp(prog,cmd, __VA_ARGS__)
+#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 */
+/* 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;
-/* Unlike waitpid, waits ONLY for one process.
+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);
+ * if (rc > 0) bb_error_msg("exit code: %d", rc & 0xff);
*/
int wait4pid(pid_t pid) FAST_FUNC;
-pid_t wait_any_nohang(int *wstat) FAST_FUNC;
-/* wait4pid(spawn(argv)) + NOFORK/NOEXEC (if configured) */
+/* Same as wait4pid(spawn(argv)), but with NOFORK/NOEXEC if configured: */
int spawn_and_wait(char **argv) FAST_FUNC;
-struct nofork_save_area {
- jmp_buf die_jmp;
- const char *applet_name;
- int xfunc_error_retval;
- uint32_t option_mask32;
- int die_sleep;
- smallint saved;
-};
-void save_nofork_data(struct nofork_save_area *save) FAST_FUNC;
-void restore_nofork_data(struct nofork_save_area *save) FAST_FUNC;
/* Does NOT check that applet is NOFORK, just blindly runs it */
int run_nofork_applet(int applet_no, char **argv) FAST_FUNC;
-int run_nofork_applet_prime(struct nofork_save_area *old, int applet_no, char **argv) FAST_FUNC;
/* Helpers for daemonization.
*
* Both of the above will redirect fd 0,1,2 to /dev/null and drop ctty
* (will do setsid()).
*
- * fork_or_rexec(argv) = bare-bones "fork" on MMU,
+ * fork_or_rexec(argv) = bare-bones fork on MMU,
* "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid().
* On MMU ignores argv.
*
DAEMON_ONLY_SANITIZE = 8, /* internal use */
};
#if BB_MMU
- pid_t fork_or_rexec(void) FAST_FUNC;
enum { re_execed = 0 };
-# define fork_or_rexec(argv) fork_or_rexec()
+# define fork_or_rexec(argv) xfork()
# define bb_daemonize_or_rexec(flags, argv) bb_daemonize_or_rexec(flags)
# define bb_daemonize(flags) bb_daemonize_or_rexec(flags, bogus)
#else
+ extern bool re_execed;
void re_exec(char **argv) NORETURN FAST_FUNC;
pid_t fork_or_rexec(char **argv) FAST_FUNC;
- extern bool re_execed;
int BUG_fork_is_unavailable_on_nommu(void) FAST_FUNC;
int BUG_daemon_is_unavailable_on_nommu(void) FAST_FUNC;
void BUG_bb_daemonize_is_unavailable_on_nommu(void) FAST_FUNC;
# define fork() BUG_fork_is_unavailable_on_nommu()
+# define xfork() BUG_fork_is_unavailable_on_nommu()
# define daemon(a,b) BUG_daemon_is_unavailable_on_nommu()
# define bb_daemonize(a) BUG_bb_daemonize_is_unavailable_on_nommu()
#endif
int sanitize_env_if_suid(void) FAST_FUNC;
+char* single_argv(char **argv) FAST_FUNC;
extern const char *const bb_argv_dash[]; /* "-", NULL */
extern const char *opt_complementary;
#if ENABLE_LONG_OPTS || ENABLE_FEATURE_GETOPT_LONG
extern const char *msg_eol;
extern smallint logmode;
extern int die_sleep;
-extern int xfunc_error_retval;
+extern uint8_t xfunc_error_retval;
extern jmp_buf die_jmp;
extern void xfunc_die(void) NORETURN FAST_FUNC;
extern void bb_show_usage(void) NORETURN FAST_FUNC;
extern void erase_mtab(const char * name) FAST_FUNC;
extern unsigned int tty_baud_to_value(speed_t speed) FAST_FUNC;
extern speed_t tty_value_to_baud(unsigned int value) FAST_FUNC;
-extern void bb_warn_ignoring_args(int n) FAST_FUNC;
+#if ENABLE_DESKTOP
+extern void bb_warn_ignoring_args(char *arg) FAST_FUNC;
+#else
+# define bb_warn_ignoring_args(arg) ((void)0)
+#endif
extern int get_linux_version_code(void) FAST_FUNC;
} parser_t;
parser_t* config_open(const char *filename) FAST_FUNC;
parser_t* config_open2(const char *filename, FILE* FAST_FUNC (*fopen_func)(const char *path)) FAST_FUNC;
+/* delims[0] is a comment char (use '\0' to disable), the rest are token delimiters */
int config_read(parser_t *parser, char **tokens, unsigned flags, const char *delims) FAST_FUNC;
#define config_read(parser, tokens, max, min, str, flags) \
config_read(parser, tokens, ((flags) | (((min) & 0xFF) << 8) | ((max) & 0xFF)), str)
/* Returns ptr to NUL */
char *bb_simplify_abs_path_inplace(char *path) FAST_FUNC;
-#define FAIL_DELAY 3
+#define LOGIN_FAIL_DELAY 3
extern void bb_do_delay(int seconds) FAST_FUNC;
extern void change_identity(const struct passwd *pw) FAST_FUNC;
extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args) NORETURN FAST_FUNC;
-extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args) FAST_FUNC;
+
+/* Returns $SHELL, getpwuid(getuid())->pw_shell, or DEFAULT_SHELL.
+ * Note that getpwuid result might need xstrdup'ing
+ * if there is a possibility of intervening getpwxxx() calls.
+ */
+const char *get_shell_name(void);
+
#if ENABLE_SELINUX
extern void renew_current_security_context(void) FAST_FUNC;
extern void set_current_security_context(security_context_t sid) FAST_FUNC;
#define selinux_preserve_fcontext(fdesc) ((void)0)
#endif
extern void selinux_or_die(void) FAST_FUNC;
-extern int restricted_shell(const char *shell) FAST_FUNC;
+
+
+/* systemd support */
+#define SD_LISTEN_FDS_START 3
+int sd_listen_fds(void);
+
/* setup_environment:
+ * if chdir pw->pw_dir: ok: else if to_tmp == 1: goto /tmp else: goto / or die
* if clear_env = 1: cd(pw->pw_dir), clear environment, then set
* TERM=(old value)
* USER=pw->pw_name, LOGNAME=pw->pw_name
* SHELL=shell
* else does nothing
*/
-extern void setup_environment(const char *shell, int clear_env, int change_env, const struct passwd *pw) FAST_FUNC;
+#define SETUP_ENV_CHANGEENV (1 << 0)
+#define SETUP_ENV_CLEARENV (1 << 1)
+#define SETUP_ENV_TO_TMP (1 << 2)
+extern void setup_environment(const char *shell, int flags, const struct passwd *pw) FAST_FUNC;
extern int correct_password(const struct passwd *pw) FAST_FUNC;
/* Returns a malloced string */
#if !ENABLE_USE_BB_CRYPT
void reset_ino_dev_hashtable(void) FAST_FUNC;
#ifdef __GLIBC__
/* At least glibc has horrendously large inline for this, so wrap it */
-unsigned long long bb_makedev(unsigned int major, unsigned int minor) FAST_FUNC;
+unsigned long long bb_makedev(unsigned major, unsigned minor) FAST_FUNC;
#undef makedev
#define makedev(a,b) bb_makedev(a,b)
#endif
* Return of -1 means EOF or error (errno == 0 on EOF).
* buffer[0] is used as a counter of buffered chars and must be 0
* on first call.
+ * timeout:
+ * -2: do not poll for input;
+ * -1: poll(-1) (i.e. block);
+ * >=0: poll for TIMEOUT milliseconds, return -1/EAGAIN on timeout
*/
-int64_t read_key(int fd, char *buffer) FAST_FUNC;
+int64_t read_key(int fd, char *buffer, int timeout) FAST_FUNC;
+void read_key_ungets(char *buffer, const char *str, unsigned len) FAST_FUNC;
#if ENABLE_FEATURE_EDITING
/* It's NOT just ENABLEd or disabled. It's a number: */
-# ifdef CONFIG_FEATURE_EDITING_HISTORY
+# if defined CONFIG_FEATURE_EDITING_HISTORY && CONFIG_FEATURE_EDITING_HISTORY > 0
# define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
+unsigned size_from_HISTFILESIZE(const char *hp);
# else
# define MAX_HISTORY 0
# endif
# if MAX_HISTORY
int cnt_history;
int cur_history;
+ int max_history; /* must never be <= 0 */
# if ENABLE_FEATURE_EDITING_SAVEHISTORY
unsigned cnt_history_in_file;
const char *hist_file;
};
line_input_t *new_line_input_t(int flags) FAST_FUNC;
/* So far static: void free_line_input_t(line_input_t *n) FAST_FUNC; */
-/* maxsize must be >= 2.
+/*
+ * maxsize must be >= 2.
* Returns:
* -1 on read errors or EOF, or on bare Ctrl-D,
* 0 on ctrl-C (the line entered is still returned in 'command'),
* >0 length of input string, including terminating '\n'
*/
-int read_line_input(const char* prompt, char* command, int maxsize, line_input_t *state) FAST_FUNC;
+int read_line_input(line_input_t *st, const char *prompt, char *command, int maxsize, int timeout) FAST_FUNC;
#else
#define MAX_HISTORY 0
int read_line_input(const char* prompt, char* command, int maxsize) FAST_FUNC;
-#define read_line_input(prompt, command, maxsize, state) \
+#define read_line_input(state, prompt, command, maxsize, timeout) \
read_line_input(prompt, command, maxsize)
#endif
enum { COMM_LEN = 16 };
# endif
#endif
+
+struct smaprec {
+ unsigned long mapped_rw;
+ unsigned long mapped_ro;
+ unsigned long shared_clean;
+ unsigned long shared_dirty;
+ unsigned long private_clean;
+ unsigned long private_dirty;
+ unsigned long stack;
+ unsigned long smap_pss, smap_swap;
+ unsigned long smap_size;
+ unsigned long smap_start;
+ char smap_mode[5];
+ char *smap_name;
+};
+
+#if !ENABLE_PMAP
+#define procps_read_smaps(pid, total, cb, data) \
+ procps_read_smaps(pid, total)
+#endif
+int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total,
+ void (*cb)(struct smaprec *, void *), void *data);
+
typedef struct procps_status_t {
DIR *dir;
IF_FEATURE_SHOW_THREADS(DIR *task_dir;)
char *argv0;
char *exe;
IF_SELINUX(char *context;)
+ IF_FEATURE_SHOW_THREADS(unsigned main_thread_pid;)
/* Everything below must contain no ptrs to malloc'ed data:
* it is memset(0) for each process in procps_scan() */
unsigned long vsz, rss; /* we round it to kbytes */
#endif
unsigned tty_major,tty_minor;
#if ENABLE_FEATURE_TOPMEM
- unsigned long mapped_rw;
- unsigned long mapped_ro;
- unsigned long shared_clean;
- unsigned long shared_dirty;
- unsigned long private_clean;
- unsigned long private_dirty;
- unsigned long stack;
+ struct smaprec smaps;
#endif
char state[4];
/* basename of executable in exec(2), read from /proc/N/stat
void read_cmdline(char *buf, int size, unsigned pid, const char *comm) FAST_FUNC;
pid_t *find_pid_by_name(const char* procName) FAST_FUNC;
pid_t *pidlist_reverse(pid_t *pidList) FAST_FUNC;
+int starts_with_cpu(const char *str) FAST_FUNC;
+unsigned get_cpu_count(void) FAST_FUNC;
extern const char bb_uuenc_tbl_base64[];
extern const char bb_uuenc_tbl_std[];
void bb_uuencode(char *store, const void *s, int length, const char *tbl) FAST_FUNC;
+enum {
+ BASE64_FLAG_UU_STOP = 0x100,
+ /* Sign-extends to a value which never matches fgetc result: */
+ BASE64_FLAG_NO_STOP_CHAR = 0x80,
+};
+void FAST_FUNC read_base64(FILE *src_stream, FILE *dst_stream, int flags);
-typedef struct sha1_ctx_t {
- uint32_t hash[8]; /* 5, +3 elements for sha256 */
- uint64_t total64;
- uint8_t wbuffer[64]; /* NB: always correctly aligned for uint64_t */
- void (*process_block)(struct sha1_ctx_t*) FAST_FUNC;
-} sha1_ctx_t;
-void sha1_begin(sha1_ctx_t *ctx) FAST_FUNC;
-void sha1_hash(const void *data, size_t length, sha1_ctx_t *ctx) FAST_FUNC;
-void sha1_end(void *resbuf, sha1_ctx_t *ctx) FAST_FUNC;
-typedef struct sha1_ctx_t sha256_ctx_t;
-void sha256_begin(sha256_ctx_t *ctx) FAST_FUNC;
-#define sha256_hash sha1_hash
-#define sha256_end sha1_end
+typedef struct md5_ctx_t {
+ uint8_t wbuffer[64]; /* always correctly aligned for uint64_t */
+ void (*process_block)(struct md5_ctx_t*) FAST_FUNC;
+ uint64_t total64; /* must be directly before hash[] */
+ uint32_t hash[8]; /* 4 elements for md5, 5 for sha1, 8 for sha256 */
+} md5_ctx_t;
+typedef struct md5_ctx_t sha1_ctx_t;
+typedef struct md5_ctx_t sha256_ctx_t;
typedef struct sha512_ctx_t {
+ uint64_t total64[2]; /* must be directly before hash[] */
uint64_t hash[8];
- uint64_t total64[2];
- uint8_t wbuffer[128]; /* NB: always correctly aligned for uint64_t */
+ uint8_t wbuffer[128]; /* always correctly aligned for uint64_t */
} sha512_ctx_t;
-void sha512_begin(sha512_ctx_t *ctx) FAST_FUNC;
-void sha512_hash(const void *buffer, size_t len, sha512_ctx_t *ctx) FAST_FUNC;
-void sha512_end(void *resbuf, sha512_ctx_t *ctx) FAST_FUNC;
-#if 1
-typedef struct md5_ctx_t {
- uint32_t A;
- uint32_t B;
- uint32_t C;
- uint32_t D;
- uint64_t total;
- uint32_t buflen;
- char buffer[128];
-} md5_ctx_t;
-#else
-/* libbb/md5prime.c uses a bit different one: */
-typedef struct md5_ctx_t {
- uint32_t state[4]; /* state (ABCD) */
- uint32_t count[2]; /* number of bits, modulo 2^64 (lsb first) */
- unsigned char buffer[64]; /* input buffer */
-} md5_ctx_t;
-#endif
void md5_begin(md5_ctx_t *ctx) FAST_FUNC;
-void md5_hash(const void *data, size_t length, md5_ctx_t *ctx) FAST_FUNC;
-void md5_end(void *resbuf, md5_ctx_t *ctx) FAST_FUNC;
-
+void md5_hash(md5_ctx_t *ctx, const void *data, size_t length) FAST_FUNC;
+void md5_end(md5_ctx_t *ctx, void *resbuf) FAST_FUNC;
+void sha1_begin(sha1_ctx_t *ctx) FAST_FUNC;
+#define sha1_hash md5_hash
+void sha1_end(sha1_ctx_t *ctx, void *resbuf) FAST_FUNC;
+void sha256_begin(sha256_ctx_t *ctx) FAST_FUNC;
+#define sha256_hash md5_hash
+#define sha256_end sha1_end
+void sha512_begin(sha512_ctx_t *ctx) FAST_FUNC;
+void sha512_hash(sha512_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC;
+void sha512_end(sha512_ctx_t *ctx, void *resbuf) FAST_FUNC;
+extern uint32_t *global_crc32_table;
uint32_t *crc32_filltable(uint32_t *tbl256, int endian) FAST_FUNC;
+uint32_t crc32_block_endian1(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC;
+uint32_t crc32_block_endian0(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC;
typedef struct masks_labels_t {
const char *labels;
int print_flags(const masks_labels_t *ml, int flags) FAST_FUNC;
typedef struct bb_progress_t {
- off_t lastsize;
- unsigned lastupdate_sec;
+ unsigned last_size;
+ unsigned last_update_sec;
+ unsigned last_change_sec;
unsigned start_sec;
+ const char *curfile;
} bb_progress_t;
-void bb_progress_init(bb_progress_t *p) FAST_FUNC;
-void bb_progress_update(bb_progress_t *p, const char *curfile,
- off_t beg_range, off_t transferred,
- off_t totalsize) FAST_FUNC;
+#define is_bb_progress_inited(p) ((p)->curfile != NULL)
+#define bb_progress_free(p) do { \
+ if (ENABLE_UNICODE_SUPPORT) free((char*)((p)->curfile)); \
+ (p)->curfile = NULL; \
+} while (0)
+void bb_progress_init(bb_progress_t *p, const char *curfile) FAST_FUNC;
+void bb_progress_update(bb_progress_t *p,
+ uoff_t beg_range,
+ uoff_t transferred,
+ uoff_t totalsize) FAST_FUNC;
+
extern const char *applet_name;
+
+/* Some older linkers don't perform string merging, we used to have common strings
+ * as global arrays to do it by hand. But:
+ * (1) newer linkers do it themselves,
+ * (2) however, they DONT merge string constants with global arrays,
+ * even if the value is the same (!). Thus global arrays actually
+ * increased size a bit: for example, "/etc/passwd" string from libc
+ * wasn't merged with bb_path_passwd_file[] array!
+ * Therefore now we use #defines.
+ */
/* "BusyBox vN.N.N (timestamp or extra_version)" */
extern const char bb_banner[];
extern const char bb_msg_memory_exhausted[];
extern const char bb_msg_invalid_date[];
-extern const char bb_msg_read_error[];
-extern const char bb_msg_write_error[];
+#define bb_msg_read_error "read error"
+#define bb_msg_write_error "write error"
extern const char bb_msg_unknown[];
extern const char bb_msg_can_not_create_raw_socket[];
extern const char bb_msg_perm_denied_are_you_root[];
+extern const char bb_msg_you_must_be_root[];
extern const char bb_msg_requires_arg[];
extern const char bb_msg_invalid_arg[];
extern const char bb_msg_standard_input[];
extern const char bb_msg_standard_output[];
-extern const char bb_str_default[];
/* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */
extern const char bb_hexdigits_upcase[];
-extern const char bb_path_mtab_file[];
-extern const char bb_path_passwd_file[];
-extern const char bb_path_shadow_file[];
-extern const char bb_path_gshadow_file[];
-extern const char bb_path_group_file[];
-extern const char bb_path_motd_file[];
extern const char bb_path_wtmp_file[];
-extern const char bb_dev_null[];
+
+/* Busybox mount uses either /proc/mounts or /etc/mtab to
+ * get the list of currently mounted filesystems */
+#define bb_path_mtab_file IF_FEATURE_MTAB_SUPPORT("/etc/mtab")IF_NOT_FEATURE_MTAB_SUPPORT("/proc/mounts")
+
+#define bb_path_passwd_file _PATH_PASSWD
+#define bb_path_group_file _PATH_GROUP
+#define bb_path_shadow_file _PATH_SHADOW
+#define bb_path_gshadow_file _PATH_GSHADOW
+
+#define bb_path_motd_file "/etc/motd"
+
+#define bb_dev_null "/dev/null"
extern const char bb_busybox_exec_path[];
/* util-linux manpage says /sbin:/bin:/usr/sbin:/usr/bin,
* but I want to save a few bytes here */
* use bb_default_login_shell and following defines.
* If you change LIBBB_DEFAULT_LOGIN_SHELL,
* don't forget to change increment constant. */
-#define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh"
+#define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh"
extern const char bb_default_login_shell[];
/* "/bin/sh" */
-#define DEFAULT_SHELL (bb_default_login_shell+1)
+#define DEFAULT_SHELL (bb_default_login_shell+1)
/* "sh" */
-#define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
+#define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
+
+/* The following devices are the same on all systems. */
+#define CURRENT_TTY "/dev/tty"
+#define DEV_CONSOLE "/dev/console"
-#if ENABLE_FEATURE_DEVFS
+#if defined(__FreeBSD_kernel__)
+# define CURRENT_VC CURRENT_TTY
+# define VC_1 "/dev/ttyv0"
+# define VC_2 "/dev/ttyv1"
+# define VC_3 "/dev/ttyv2"
+# define VC_4 "/dev/ttyv3"
+# define VC_5 "/dev/ttyv4"
+# define VC_FORMAT "/dev/ttyv%d"
+#elif defined(__GNU__)
+# define CURRENT_VC CURRENT_TTY
+# define VC_1 "/dev/tty1"
+# define VC_2 "/dev/tty2"
+# define VC_3 "/dev/tty3"
+# define VC_4 "/dev/tty4"
+# define VC_5 "/dev/tty5"
+# define VC_FORMAT "/dev/tty%d"
+#elif ENABLE_FEATURE_DEVFS
+/*Linux, obsolete devfs names */
# define CURRENT_VC "/dev/vc/0"
# define VC_1 "/dev/vc/1"
# define VC_2 "/dev/vc/2"
# define VC_3 "/dev/vc/3"
# define VC_4 "/dev/vc/4"
# define VC_5 "/dev/vc/5"
-#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
-/* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their
- respective serial ports .. as such, we can't use the common device paths for
- these. -- PFM */
-# define SC_0 "/dev/ttsc/0"
-# define SC_1 "/dev/ttsc/1"
-# define SC_FORMAT "/dev/ttsc/%d"
-#else
-# define SC_0 "/dev/tts/0"
-# define SC_1 "/dev/tts/1"
-# define SC_FORMAT "/dev/tts/%d"
-#endif
# define VC_FORMAT "/dev/vc/%d"
# define LOOP_FORMAT "/dev/loop/%d"
# define LOOP_NAMESIZE (sizeof("/dev/loop/") + sizeof(int)*3 + 1)
# define LOOP_NAME "/dev/loop/"
# define FB_0 "/dev/fb/0"
#else
+/*Linux, normal names */
# define CURRENT_VC "/dev/tty0"
# define VC_1 "/dev/tty1"
# define VC_2 "/dev/tty2"
# define VC_3 "/dev/tty3"
# define VC_4 "/dev/tty4"
# define VC_5 "/dev/tty5"
-#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
-# define SC_0 "/dev/ttySC0"
-# define SC_1 "/dev/ttySC1"
-# define SC_FORMAT "/dev/ttySC%d"
-#else
-# define SC_0 "/dev/ttyS0"
-# define SC_1 "/dev/ttyS1"
-# define SC_FORMAT "/dev/ttyS%d"
-#endif
# define VC_FORMAT "/dev/tty%d"
# define LOOP_FORMAT "/dev/loop%d"
# define LOOP_NAMESIZE (sizeof("/dev/loop") + sizeof(int)*3 + 1)
# define FB_0 "/dev/fb0"
#endif
-/* The following devices are the same on devfs and non-devfs systems. */
-#define CURRENT_TTY "/dev/tty"
-#define DEV_CONSOLE "/dev/console"
-
#define ARRAY_SIZE(x) ((unsigned)(sizeof(x) / sizeof((x)[0])))
/* We save ~500 bytes on isdigit alone.
* BTW, x86 likes (unsigned char) cast more than (unsigned). */
-#define isdigit(a) ((unsigned char)((a) - '0') <= 9)
+
+/* These work the same for ASCII and Unicode,
+ * assuming no one asks "is this a *Unicode* letter?" using isalpha(letter) */
#define isascii(a) ((unsigned char)(a) <= 0x7f)
-#define isgraph(a) ((unsigned char)(a) > ' ')
-#define isprint(a) ((unsigned char)(a) >= ' ')
+#define isdigit(a) ((unsigned char)((a) - '0') <= 9)
#define isupper(a) ((unsigned char)((a) - 'A') <= ('Z' - 'A'))
#define islower(a) ((unsigned char)((a) - 'a') <= ('z' - 'a'))
#define isalpha(a) ((unsigned char)(((a)|0x20) - 'a') <= ('z' - 'a'))
* "\t\n\v\f\r" happen to have ASCII codes 9,10,11,12,13.
*/
#define isspace(a) ({ unsigned char bb__isspace = (a) - 9; bb__isspace == (' ' - 9) || bb__isspace <= (13 - 9); })
-
-// Bigger code:
-//#define isalnum(a) ({ unsigned char bb__isalnum = (a) - '0'; bb__isalnum <= 9 || ((bb__isalnum - ('A' - '0')) & 0xdf) <= 25; })
+// Unsafe wrt NUL: #define ispunct(a) (strchr("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a)) != NULL)
+#define ispunct(a) (strchrnul("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a))[0])
+// Bigger code: #define isalnum(a) ({ unsigned char bb__isalnum = (a) - '0'; bb__isalnum <= 9 || ((bb__isalnum - ('A' - '0')) & 0xdf) <= 25; })
#define isalnum(a) bb_ascii_isalnum(a)
static ALWAYS_INLINE int bb_ascii_isalnum(unsigned char a)
{
b = (a|0x20) - 'a';
return b <= 'f' - 'a';
}
-
-// Unsafe wrt NUL!
-//#define ispunct(a) (strchr("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a)) != NULL)
-#define ispunct(a) (strchrnul("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a))[0])
-
#define toupper(a) bb_ascii_toupper(a)
static ALWAYS_INLINE unsigned char bb_ascii_toupper(unsigned char a)
{
return a;
}
+/* In ASCII and Unicode, these are likely to be very different.
+ * Let's prevent ambiguous usage from the start */
+#define isgraph(a) isgraph_is_ambiguous_dont_use(a)
+#define isprint(a) isprint_is_ambiguous_dont_use(a)
+/* NB: must not treat EOF as isgraph or isprint */
+#define isgraph_asciionly(a) ((unsigned)((a) - 0x21) <= 0x7e - 0x21)
+#define isprint_asciionly(a) ((unsigned)((a) - 0x20) <= 0x7e - 0x20)
+
POP_SAVED_FUNCTION_VISIBILITY
projects / oweals / busybox.git / blobdiff