uint64_t bb_bswap_64(uint64_t x) FAST_FUNC;
#endif
+unsigned long FAST_FUNC isqrt(unsigned long long N);
+
unsigned long long monotonic_ns(void) FAST_FUNC;
unsigned long long monotonic_us(void) FAST_FUNC;
unsigned long long monotonic_ms(void) FAST_FUNC;
uint16_t inet_cksum(uint16_t *addr, int len) FAST_FUNC;
+/* 0 if argv[0] is NULL: */
+unsigned string_array_len(char **argv) FAST_FUNC;
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;
#else
#define die_if_bad_username(name) ((void)(name))
#endif
+/*
+ * Returns (-1) terminated malloced result of getgroups().
+ * Reallocs group_array (useful for repeated calls).
+ * ngroups is an initial size of array. It is rounded up to 32 for realloc.
+ * ngroups is updated on return.
+ * ngroups can be NULL: bb_getgroups(NULL, NULL) is valid usage.
+ * Dies on errors (on Linux, only xrealloc can cause this, not internal getgroups call).
+ */
+gid_t *bb_getgroups(int *ngroups, gid_t *group_array) FAST_FUNC;
#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);
*/
int wait4pid(pid_t pid) FAST_FUNC;
int wait_for_exitstatus(pid_t pid) FAST_FUNC;
+/************************************************************************/
+/* spawn_and_wait/run_nofork_applet/run_applet_no_and_exit need to work */
+/* carefully together to reinit some global state while not disturbing */
+/* other. Be careful if you change them. Consult docs/nofork_noexec.txt */
+/************************************************************************/
/* Same as wait4pid(spawn(argv)), but with NOFORK/NOEXEC if configured: */
int spawn_and_wait(char **argv) FAST_FUNC;
/* Does NOT check that applet is NOFORK, just blindly runs it */
int run_nofork_applet(int applet_no, char **argv) FAST_FUNC;
+#ifndef BUILD_INDIVIDUAL
+extern int find_applet_by_name(const char *name) FAST_FUNC;
+extern void run_applet_no_and_exit(int a, char **argv) NORETURN FAST_FUNC;
+#endif
/* Helpers for daemonization.
*
#endif
extern uint32_t option_mask32;
extern uint32_t getopt32(char **argv, const char *applet_opts, ...) FAST_FUNC;
+/* BSD-derived getopt() functions require that optind be set to 1 in
+ * order to reset getopt() state. This used to be generally accepted
+ * way of resetting getopt(). However, glibc's getopt()
+ * has additional getopt() state beyond optind (specifically, glibc
+ * extensions such as '+' and '-' at the start of the string), and requires
+ * that optind be set to zero to reset its state. BSD-derived versions
+ * of getopt() misbehaved if optind is set to 0 in order to reset getopt(),
+ * and glibc's getopt() used to coredump if optind is set 1 in order
+ * to reset getopt().
+ * Then BSD introduced additional variable "optreset" which should be
+ * set to 1 in order to reset getopt(). Sigh. Standards, anyone?
+ *
+ * By ~2008, OpenBSD 3.4 was changed to survive glibc-like optind = 0
+ * (to interpret it as if optreset was set).
+ */
+#ifdef __GLIBC__
+#define GETOPT_RESET() (optind = 0)
+#else /* BSD style */
+#define GETOPT_RESET() (optind = 1)
+#endif
/* Having next pointer as a first member allows easy creation
/* Applets which are useful from another applets */
-int bb_cat(char** argv);
+int bb_cat(char** argv) FAST_FUNC;
/* If shell needs them, they exist even if not enabled as applets */
int echo_main(int argc, char** argv) IF_ECHO(MAIN_EXTERNALLY_VISIBLE);
int printf_main(int argc, char **argv) IF_PRINTF(MAIN_EXTERNALLY_VISIBLE);
void bb_displayroutes(int noresolve, int netstatfmt) FAST_FUNC;
#endif
+struct number_state {
+ unsigned width;
+ unsigned start;
+ unsigned inc;
+ const char *sep;
+ const char *empty_str;
+ smallint all, nonempty;
+};
+void print_numbered_lines(struct number_state *ns, const char *filename) FAST_FUNC;
+
/* Networking */
/* This structure defines protocol families and their handlers. */
const struct hwtype *get_hwntype(int type) FAST_FUNC;
-#ifndef BUILD_INDIVIDUAL
-extern int find_applet_by_name(const char *name) FAST_FUNC;
-extern void run_applet_no_and_exit(int a, char **argv) NORETURN FAST_FUNC;
-#endif
-
+extern int fstype_matches(const char *fstype, const char *comma_list) FAST_FUNC;
#ifdef HAVE_MNTENT_H
-extern int match_fstype(const struct mntent *mt, const char *fstypes) FAST_FUNC;
extern struct mntent *find_mount_point(const char *name, int subdir_too) FAST_FUNC;
#endif
extern void erase_mtab(const char * name) FAST_FUNC;
extern char *query_loop(const char *device) FAST_FUNC;
extern int del_loop(const char *device) FAST_FUNC;
-/* If *devname is not NULL, use that name, otherwise try to find free one,
+/*
+ * If *devname is not NULL, use that name, otherwise try to find free one,
* malloc and return it in *devname.
- * return value: 1: read-only loopdev was setup, 0: rw, < 0: error */
-extern int set_loop(char **devname, const char *file, unsigned long long offset, int ro) FAST_FUNC;
+ * return value is the opened fd to the loop device, or < on error
+ */
+extern int set_loop(char **devname, const char *file, unsigned long long offset, unsigned flags) FAST_FUNC;
+/* These constants match linux/loop.h (without BB_ prefix): */
+#define BB_LO_FLAGS_READ_ONLY 1
+#define BB_LO_FLAGS_AUTOCLEAR 4
/* Like bb_ask below, but asks on stdin with no timeout. */
char *bb_ask_stdin(const char * prompt) FAST_FUNC;
#define SETUP_ENV_NO_CHDIR (1 << 4)
void setup_environment(const char *shell, int flags, const struct passwd *pw) FAST_FUNC;
void nuke_str(char *str) FAST_FUNC;
+#if ENABLE_FEATURE_SECURETTY && !ENABLE_PAM
+int is_tty_secure(const char *short_tty) FAST_FUNC;
+#else
+static ALWAYS_INLINE int is_tty_secure(const char *short_tty UNUSED_PARAM) { return 1; }
+#endif
+#define CHECKPASS_PW_HAS_EMPTY_PASSWORD 2
int check_password(const struct passwd *pw, const char *plaintext) FAST_FUNC;
int ask_and_check_password_extended(const struct passwd *pw, int timeout, const char *prompt) FAST_FUNC;
int ask_and_check_password(const struct passwd *pw) FAST_FUNC;
projects / oweals / busybox.git / blobdiff