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hush/include/libbb.h
Eric Andersen 2a186890ee Bruno Randolf writes: 
this patch fixes run_parts when it's called by ifupdown. 1) argv has to be a
NULL terminated char* array, not just a string. 2) run_parts now explicitly
sets the environment. this environment is populated from the
/etc/network/interfaces config file and is needed by the scripts in
/etc/network/if-pre-up.d/. when run-parts is called from the command line the
environment is taken from the current process.


Vladimir Oleynik then wrote:

You can simplify this if use:

+       bb_xasprintf(&buf[0], "/etc/network/if-%s.d", opt);
+       buf[1] = NULL;
+
+       run_parts(&buf, 2, environ);
+       free(buf[0]);

--w
vodz
2003-07-29 07:05:40 +00:00

459 lines
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/* vi: set sw=4 ts=4: */
/*
* Busybox main internal header file
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* 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.
*
*/
#ifndef __LIBCONFIG_H__
#define __LIBCONFIG_H__ 1
#include <stdio.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <termios.h>
#include <netdb.h>
#ifdef DMALLOC
#include <dmalloc.h>
#endif
#include <features.h>
#include "config.h"
#ifdef CONFIG_SELINUX
#include <proc_secure.h>
#endif
#include "pwd_.h"
#include "grp_.h"
#ifdef CONFIG_FEATURE_SHADOWPASSWDS
#include "shadow_.h"
#endif
#ifdef CONFIG_FEATURE_SHA1_PASSWORDS
# include "sha1.h"
#endif
/* Compatability with ANSI C */
#ifndef inline
# define inline
#endif
/* Convenience macros to test the version of gcc. */
#if defined __GNUC__ && defined __GNUC_MINOR__
# define __GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
# define __GNUC_PREREQ(maj, min) 0
#endif
/* __restrict is known in EGCS 1.2 and above. */
#if !__GNUC_PREREQ (2,92)
# define __restrict /* Ignore */
#endif
/* Some useful definitions */
#define FALSE ((int) 0)
#define TRUE ((int) 1)
#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
extern void bb_show_usage(void) __attribute__ ((noreturn));
extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
extern void bb_vherror_msg(const char *s, va_list p);
extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
extern void bb_perror_nomsg_and_die(void) __attribute__ ((noreturn));
extern void bb_perror_nomsg(void);
/* These two are used internally -- you shouldn't need to use them */
extern void bb_verror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0)));
extern void bb_vperror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0)));
extern const char *bb_mode_string(int mode);
extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
extern int remove_file(const char *path, int flags);
extern int copy_file(const char *source, const char *dest, int flags);
extern ssize_t safe_read(int fd, void *buf, size_t count);
extern ssize_t bb_full_write(int fd, const void *buf, size_t len);
extern ssize_t bb_full_read(int fd, void *buf, size_t len);
extern int recursive_action(const char *fileName, int recurse,
int followLinks, int depthFirst,
int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
void* userData);
extern int bb_parse_mode( const char* s, mode_t* theMode);
extern long bb_xgetlarg(const char *arg, int base, long lower, long upper);
extern unsigned long bb_baud_to_value(speed_t speed);
extern speed_t bb_value_to_baud(unsigned long value);
extern int get_kernel_revision(void);
extern int get_console_fd(void);
extern struct mntent *find_mount_point(const char *name, const char *table);
extern void write_mtab(char* blockDevice, char* directory,
char* filesystemType, long flags, char* string_flags);
extern void erase_mtab(const char * name);
extern long *find_pid_by_name( const char* pidName);
extern char *find_real_root_device_name(const char* name);
extern char *bb_get_line_from_file(FILE *file);
extern char *bb_get_chomped_line_from_file(FILE *file);
extern int bb_copyfd(int fd1, int fd2, const off_t chunksize);
extern void bb_xprint_and_close_file(FILE *file);
extern int bb_xprint_file_by_name(const char *filename);
extern char bb_process_escape_sequence(const char **ptr);
extern char *bb_get_last_path_component(char *path);
extern FILE *bb_wfopen(const char *path, const char *mode);
extern FILE *bb_xfopen(const char *path, const char *mode);
//#warning rename?
extern int bb_fclose_nonstdin(FILE *f);
extern void bb_fflush_stdout_and_exit(int retval) __attribute__ ((noreturn));
extern const char *bb_opt_complementaly;
extern const struct option *bb_applet_long_options;
extern unsigned long bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...);
//#warning rename?
extern FILE *bb_wfopen_input(const char *filename);
extern int bb_vfprintf(FILE * __restrict stream, const char * __restrict format,
va_list arg) __attribute__ ((format (printf, 2, 0)));
extern int bb_vprintf(const char * __restrict format, va_list arg)
__attribute__ ((format (printf, 1, 0)));
extern int bb_fprintf(FILE * __restrict stream, const char * __restrict format, ...)
__attribute__ ((format (printf, 2, 3)));
extern int bb_printf(const char * __restrict format, ...)
__attribute__ ((format (printf, 1, 2)));
//#warning rename to xferror_filename?
extern void bb_xferror(FILE *fp, const char *fn);
extern void bb_xferror_stdout(void);
extern void bb_xfflush_stdout(void);
extern void bb_warn_ignoring_args(int n);
extern void chomp(char *s);
extern void trim(char *s);
extern const char *bb_skip_whitespace(const char *);
extern struct BB_applet *find_applet_by_name(const char *name);
void run_applet_by_name(const char *name, int argc, char **argv);
//#warning is this needed anymore?
#ifndef DMALLOC
extern void *xmalloc (size_t size);
extern void *xrealloc(void *old, size_t size);
extern void *xcalloc(size_t nmemb, size_t size);
#endif
extern char *bb_xstrdup (const char *s);
extern char *bb_xstrndup (const char *s, int n);
extern char * safe_strncpy(char *dst, const char *src, size_t size);
struct suffix_mult {
const char *suffix;
unsigned int mult;
};
extern unsigned long bb_xgetularg_bnd_sfx(const char *arg, int base,
unsigned long lower,
unsigned long upper,
const struct suffix_mult *suffixes);
extern unsigned long bb_xgetularg_bnd(const char *arg, int base,
unsigned long lower,
unsigned long upper);
extern unsigned long bb_xgetularg10_bnd(const char *arg,
unsigned long lower,
unsigned long upper);
extern unsigned long bb_xgetularg10(const char *arg);
extern long bb_xgetlarg_bnd_sfx(const char *arg, int base,
long lower,
long upper,
const struct suffix_mult *suffixes);
extern long bb_xgetlarg10_sfx(const char *arg, const struct suffix_mult *suffixes);
//#warning pitchable now?
extern unsigned long bb_xparse_number(const char *numstr,
const struct suffix_mult *suffixes);
//#warning change names?
/* 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 embedded systems. */
extern long my_getpwnam(const char *name);
extern long my_getgrnam(const char *name);
extern char * my_getpwuid(char *name, long uid);
extern char * my_getgrgid(char *group, long gid);
extern long my_getpwnamegid(const char *name);
extern int device_open(const char *device, int mode);
extern int del_loop(const char *device);
extern int set_loop(const char *device, const char *file, int offset, int *loopro);
extern char *find_unused_loop_device (void);
#if (__GLIBC__ < 2)
extern int vdprintf(int d, const char *format, va_list ap);
#endif
int nfsmount(const char *spec, const char *node, int *flags,
char **extra_opts, char **mount_opts, int running_bg);
void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg);
void syslog_msg(int facility, int pri, const char *msg);
/* Include our own copy of struct sysinfo to avoid binary compatability
* 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.. */
};
extern int sysinfo (struct sysinfo* info);
enum {
KILOBYTE = 1024,
MEGABYTE = (KILOBYTE*1024),
GIGABYTE = (MEGABYTE*1024)
};
const char *make_human_readable_str(unsigned long size, unsigned long block_size, unsigned long display_unit);
int bb_ask_confirmation(void);
int klogctl(int type, char * b, int len);
char *xgetcwd(char *cwd);
char *xreadlink(const char *path);
char *concat_path_file(const char *path, const char *filename);
char *concat_subpath_file(const char *path, const char *filename);
char *last_char_is(const char *s, int c);
extern long arith (const char *startbuf, int *errcode);
int read_package_field(const char *package_buffer, char **field_name, char **field_value);
//#warning yuk!
char *fgets_str(FILE *file, const char *terminating_string);
extern int uncompress(int fd_in, int fd_out);
extern int inflate(int in, int out);
extern struct hostent *xgethostbyname(const char *name);
extern struct hostent *xgethostbyname2(const char *name, int af);
extern int create_icmp_socket(void);
extern int create_icmp6_socket(void);
extern int xconnect(const char *host, const char *port);
//#warning wrap this?
char *dirname (char *path);
int bb_make_directory (char *path, long mode, int flags);
const char *u_signal_names(const char *str_sig, int *signo, int startnum);
char *bb_simplify_path(const char *path);
enum { /* DO NOT CHANGE THESE VALUES! cp.c depends on them. */
FILEUTILS_PRESERVE_STATUS = 1,
FILEUTILS_DEREFERENCE = 2,
FILEUTILS_RECUR = 4,
FILEUTILS_FORCE = 8,
FILEUTILS_INTERACTIVE = 16
};
extern const char *bb_applet_name;
extern const char * const bb_msg_full_version;
extern const char * const bb_msg_memory_exhausted;
extern const char * const bb_msg_invalid_date;
extern const char * const bb_msg_io_error;
extern const char * const bb_msg_write_error;
extern const char * const bb_msg_name_longer_than_foo;
extern const char * const bb_msg_unknown;
extern const char * const bb_msg_can_not_create_raw_socket;
extern const char * const bb_msg_perm_denied_are_you_root;
extern const char * const bb_msg_standard_input;
extern const char * const bb_msg_standard_output;
extern const char * const bb_path_nologin_file;
extern const char * const bb_path_passwd_file;
extern const char * const bb_path_shadow_file;
extern const char * const bb_path_gshadow_file;
extern const char * const bb_path_group_file;
extern const char * const bb_path_securetty_file;
extern const char * const bb_path_motd_file;
extern const char bb_path_mtab_file[];
extern int bb_default_error_retval;
#ifdef CONFIG_FEATURE_DEVFS
# 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"
#else
# 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"
#endif
//#warning put these in .o files
/* The following devices are the same on devfs and non-devfs systems. */
#define CURRENT_TTY "/dev/tty"
#define CONSOLE_DEV "/dev/console"
int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
void reset_ino_dev_hashtable(void);
/* Stupid gcc always includes its own builtin strlen()... */
extern size_t bb_strlen(const char *string);
#define strlen(x) bb_strlen(x)
void bb_xasprintf(char **string_ptr, const char *format, ...) __attribute__ ((format (printf, 2, 3)));
#define FAIL_DELAY 3
extern void change_identity ( const struct passwd *pw );
extern void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args
#ifdef CONFIG_SELINUX
, security_id_t sid
#endif
);
extern int run_parts(char **args, const unsigned char test_mode, char **env);
extern int restricted_shell ( const char *shell );
extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw );
extern int correct_password ( const struct passwd *pw );
extern char *pw_encrypt(const char *clear, const char *salt);
extern struct spwd *pwd_to_spwd(const struct passwd *pw);
extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
extern int bb_xopen(const char *pathname, int flags);
extern ssize_t bb_xread(int fd, void *buf, size_t count);
extern void bb_xread_all(int fd, void *buf, size_t count);
extern unsigned char bb_xread_char(int fd);
typedef struct {
int pid;
char user[9];
char state[4];
unsigned long rss;
int ppid;
#ifdef FEATURE_CPU_USAGE_PERCENTAGE
unsigned pcpu;
unsigned long stime, utime;
#endif
char *cmd;
/* basename of executable file in call to exec(2),
size from kernel headers */
char short_cmd[16];
} procps_status_t;
extern procps_status_t * procps_scan(int save_user_arg0
#ifdef CONFIG_SELINUX
, int use_selinux, security_id_t *sid
#endif
);
extern unsigned short compare_string_array(const char *string_array[], const char *key);
extern int my_query_module(const char *name, int which, void **buf, size_t *bufsize, size_t *ret);
typedef struct llist_s {
char *data;
struct llist_s *link;
} llist_t;
extern llist_t *llist_add_to(llist_t *old_head, char *new_item);
void print_login_issue(const char *issue_file, const char *tty);
void print_login_prompt(void);
void vfork_daemon_rexec(int argc, char **argv, char *foreground_opt);
#endif /* __LIBCONFIG_H__ */
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