* 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 <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>
# 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
# 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>
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 */
/* 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;
/* 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;
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,
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 \
/* 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,
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.
# 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;
struct nofork_save_area {
jmp_buf die_jmp;
const char *applet_name;
- int xfunc_error_retval;
uint32_t option_mask32;
int die_sleep;
+ uint8_t xfunc_error_retval;
smallint saved;
};
void save_nofork_data(struct nofork_save_area *save) FAST_FUNC;
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;
#endif
extern void selinux_or_die(void) 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
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
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
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;
off_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_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 */
# define VC_4 "/dev/tty4"
# define VC_5 "/dev/tty5"
# define VC_FORMAT "/dev/tty%d"
-#elif ENABLE_FEATURE_DEVFS /* from now on, assume Linux naming */
+#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)
projects / oweals / busybox.git / blobdiff