ftpd.h

功能强大的ftp服务器源代码

void donlist(char *arg, const int on_ctrlconn, const int opt_l_,
             const int split_args);
void opendata(void);
void closedata(void);
void addreply(const int code, const char * const line, ...)
	__attribute__ ((format(printf, 2, 3)));
void addreply_noformat(const int code, const char * const line);
void doreply(void);
void sighandler(int sig);
void prevent(char *arg);
unsigned int daemons(unsigned short server_port);
void logfile(const int facility, const char *format, ...) 
	__attribute__ ((format(printf, 2, 3)));
void die(const int err, const int priority, const char * const format, ...)
	__attribute__ ((format(printf, 3, 4)));
void die_mem(void);
void setprogname(const char * const title);
int modernformat(const char *file,
                 char *target, size_t target_size);
int sfgets(void);
const char *getgroup(const gid_t gid);
const char *getname(const uid_t uid);
unsigned int zrand(void);
void simplify(char *subdir);
int checkprintable(register const char *s);
void delete_atomic_file(void);

#ifdef HAVE_SYS_FSUID_H
# define usleep2 usleep
#else
void usleep2(const unsigned long microsec);
#endif

int mysnprintf(char *str, size_t size, const char *format, ...);

extern int opt_a, opt_C, opt_d, opt_F, opt_l, opt_R;

#ifndef CONFDIR
# define CONFDIR "/etc"
#endif

#ifndef VHOST_PATH
# define VHOST_PATH CONFDIR "/pure-ftpd"
#endif

#ifdef WITH_TLS
# ifndef TLS_CERTIFICATE_FILE
#  define TLS_CERTIFICATE_FILE "/etc/ssl/private/pure-ftpd.pem"
# endif
#endif

#define FAKE_SHELL "ftp"

#ifndef PID_FILE
# ifdef NON_ROOT_FTP
#  define PID_FILE CONFDIR "/pure-ftpd.pid"
# else
#  define PID_FILE "/var/run/pure-ftpd.pid"
# endif
#endif

#ifndef UPLOADSCRIPT_PID_FILE
# ifdef NON_ROOT_FTP
#  define UPLOADSCRIPT_PID_FILE CONFDIR "/pure-uploadscript.pid"
# else
#  define UPLOADSCRIPT_PID_FILE "/var/run/pure-uploadscript.pid"
# endif
#endif

#ifndef AUTHD_PID_FILE
# ifdef NON_ROOT_FTP
#  define AUTHD_PID_FILE CONFDIR "/pure-authd.pid"
# else
#  define AUTHD_PID_FILE "/var/run/pure-authd.pid"
# endif
#endif

#ifndef NON_ROOT_FTP
# define DEFAULT_FTP_PORT_S "21"
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
# define DEFAULT_FTP_PORT_S "21"
#else
# define DEFAULT_FTP_PORT_S "2121"
#endif

/*
 * Some operating systems (at least Solaris > 2.7 and FreeBSD) have strange
 * troubles with reusing TCP ports, even when SO_REUSEADDR is enabled. 
 * As a workaround, we try several unassigned privileged ports.
 * The last way is to let the OS assign a port.
 * For egress filtering, you can accept connections from ports <= 20
 * to ports >= 1024.
 */

#define FTP_ACTIVE_SOURCE_PORTS { \
    DEFAULT_FTP_DATA_PORT, 2U, 3U, 4U, 5U, 6U, 10U, 14U, 16U, 0U \
}

#ifndef MAXPATHLEN
# ifdef PATH_MAX
#  define MAXPATHLEN PATH_MAX
# else
#  define MAXPATHLEN 65536U
Warning: neither PATH_MAX nor MAXPATHLEN were found.
Remove these lines if you really want to compile the server, but
the server may be insecure if a wrong value is set here.    
# endif
#endif
#if (MAXPATHLEN) >= (INT_MAX)
Your platform has a very large MAXPATHLEN, we should not trust it.
#endif

#define DEFAULT_MAX_USERS 50
#define DEFAULT_FTP_DATA_PORT 20 
#define MAX_SYSLOG_LINE (MAXPATHLEN + 512U)
#define DEFAULT_IDLE (15UL * 60UL)
#define MAX_SITE_IDLE (42UL * 60UL)
#define DEFAULT_MAX_LS_FILES 2000U
#define DEFAULT_MAX_LS_DEPTH 5U
#define GLOB_TIMEOUT 17                   /* Max user time for a 'ls' to complete */
#define MAX_CPU_TIME (17 * 60)           /* Max allowed CPU time per session */
#define MAX_SESSION_XFER_IDLE (24 * 60 * 60)   /* Max duration of a transfer */
#define MAX_USER_LENGTH 32U

#ifdef LOG_FTP
# define DEFAULT_FACILITY LOG_FTP
#else
# define DEFAULT_FACILITY LOG_LOCAL2
#endif

#if defined(WITH_LDAP) || defined(WITH_MYSQL) || defined(WITH_PGSQL)
# define MAX_DATA_SIZE (16 * 1024 * 1024)       /* Max memory usage - SQL/LDAP need more */
#else
# define MAX_DATA_SIZE (8 * 1024 * 1024)       /* Max memory usage */
#endif

#if CONF_TCP_SO_RCVBUF < 65536
# undef CONF_TCP_SO_RCVBUF
# define CONF_TCP_SO_RCVBUF 65536
#endif
#if CONF_TCP_SO_SNDBUF < 65536
# undef CONF_TCP_SO_SNDBUF
# define CONF_TCP_SO_SNDBUF 65536
#endif
    
#define DEFAULT_DL_CHUNK_SIZE (1 << 18)
#define DEFAULT_UL_CHUNK_SIZE (CONF_TCP_SO_RCVBUF)
#define MAX_UL_CHUNK_SIZE (CONF_TCP_SO_RCVBUF)
#define MAX_THROTTLING_DELAY 42           /* Maximum throttling compensation */

#define VHOST_PREFIX_MAX_LEN 64    

#define PUREFTPD_TMPFILE_PREFIX ".pureftpd-"    
#define ATOMIC_PREFIX_PREFIX PUREFTPD_TMPFILE_PREFIX "upload."
    
/*
 * Some users reported that something was wrong with TCP_CORK.
 * Better disable it for now, but we have to investigate.
 */
#ifdef TCP_CORK
# undef TCP_CORK
#endif
#ifdef TCP_CORK
# define CORK_ON(SK) do { int optval = 1; setsockopt(SK, SOL_TCP, TCP_CORK, \
  &optval, sizeof optval); } while(0)
# define CORK_OFF(SK) do { int optval = 0; setsockopt(SK, SOL_TCP, TCP_CORK, \
  &optval, sizeof optval); } while(0)
#else
# define CORK_ON(SK) do { } while(0)
# define CORK_OFF(SK) do { } while(0)
#endif

#define STORAGE_PORT(X) (((struct sockaddr_in *) &(X))->sin_port)
#define STORAGE_PORT6(X) (((struct sockaddr_in6 *) &(X))->sin6_port)
#define STORAGE_SIN_ADDR(X) ((((struct sockaddr_in *) &(X))->sin_addr).s_addr)
#define STORAGE_SIN_ADDR6(X) ((((struct sockaddr_in6 *) &(X))->sin6_addr).s6_addr)
#define STORAGE_SIN_ADDR6_NF(X) (((struct sockaddr_in6 *) &(X))->sin6_addr)

#ifdef HAVE_SS_LEN
# define STORAGE_LEN(X) ((X).ss_len)
# define SET_STORAGE_LEN(X, Y) do { STORAGE_LEN(X) = (Y); } while(0)
#elif defined(HAVE___SS_LEN)
# define STORAGE_LEN(X) ((X).__ss_len)
# define SET_STORAGE_LEN(X, Y) do { STORAGE_LEN(X) = (Y); } while(0)
#else
# define STORAGE_LEN(X) (STORAGE_FAMILY(X) == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))
# define SET_STORAGE_LEN(X, Y) (void) 0
#endif

#ifdef HAVE___SS_FAMILY
# define STORAGE_FAMILY(X) ((X).__ss_family)
#else
# define STORAGE_FAMILY(X) ((X).ss_family)
#endif

#ifndef SOL_IP
# define SOL_IP IPPROTO_IP
#endif
#ifndef SOL_TCP
# define SOL_TCP IPPROTO_TCP
#endif

#ifndef INADDR_NONE
# define INADDR_NONE 0
#endif

#if !defined(O_NDELAY) && defined(O_NONBLOCK)
# define O_NDELAY O_NONBLOCK
#endif

#ifndef FNDELAY
# define FNDELAY O_NDELAY
#endif

#ifndef MAP_FAILED
# define MAP_FAILED ((void *) -1)
#endif

#ifndef HAVE_STRTOULL
# ifdef HAVE_STRTOQ
#  define strtoull(X, Y, Z) strtoq(X, Y, Z)
# else
#  define strtoull(X, Y, Z) strtoul(X, Y, Z)
# endif
#endif

#ifndef ULONG_LONG_MAX
# define ULONG_LONG_MAX (1ULL << 63)
#endif

#ifdef HAVE_DIRENT_H
# include <dirent.h>
#endif
#ifdef HAVE_SYS_NDIR_H
# include <sys/ndir.h>
#endif
#ifdef HAVE_NDIR_H
# include <ndir.h>
#endif
       
#ifdef STAT_MACROS_BROKEN
# undef S_ISBLK
# undef S_ISCHR
# undef S_ISDIR
# undef S_ISFIFO
# undef S_ISLNK
# undef S_ISMPB
# undef S_ISMPC
# undef S_ISNWK
# undef S_ISREG
# undef S_ISSOCK
#endif                            /* STAT_MACROS_BROKEN.  */
    
#ifndef S_IFMT
# define S_IFMT 0170000
#endif
#if !defined(S_ISBLK) && defined(S_IFBLK)
# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#endif
#if !defined(S_ISCHR) && defined(S_IFCHR)
# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#endif
#if !defined(S_ISDIR) && defined(S_IFDIR)
# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#if !defined(S_ISREG) && defined(S_IFREG)
# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
#if !defined(S_ISFIFO) && defined(S_IFIFO)
# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
#endif
#if !defined(S_ISLNK) && defined(S_IFLNK)
# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
#endif
#if !defined(S_ISSOCK) && defined(S_IFSOCK)
# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
#endif
#if !defined(S_ISMPB) && defined(S_IFMPB)    /* V7 */
# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
#endif
#if !defined(S_ISNWK) && defined(S_IFNWK)    /* HP/UX */
# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
#endif
    
#ifndef S_IEXEC
# define S_IEXEC S_IXUSR
#endif
    
#ifndef S_IXUSR
# define S_IXUSR S_IEXEC
#endif
#ifndef S_IXGRP
# define S_IXGRP (S_IEXEC >> 3)
#endif
#ifndef S_IXOTH
# define S_IXOTH (S_IEXEC >> 6)
#endif
#ifndef S_IXUGO
# define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH)
#endif

#ifdef ACCEPT_UNICODE_CONTROL_CHARS
# define ISCTRLCODE(X) ((X) == 0x7f || ((unsigned char) (X)) < 32U)
#else
# define ISCTRLCODE(X) ((X) == 0x7f || !(((unsigned char) (X)) & 0x60))
#endif
    
#ifndef HAVE_MUNMAP
# define munmap(A, B) (0)
#endif

#ifndef HAVE_GETHOSTNAME
# define gethostname(A, B) (-1)
#endif

#ifndef HAVE_SETEUID
# ifdef HAVE_SETREUID
#  define seteuid(X) setreuid(-1, (X))
# elif defined(HAVE_SETRESUID)
#  define seteuid(X) setresuid(-1, (X), -1)
# else
#  define seteuid(X) (-1)
# endif
#endif
#ifndef HAVE_SETEGID
# ifdef HAVE_SETREGID
#  define setegid(X) setregid(-1, (X))
# elif defined(HAVE_SETRESGID)
#  define setegid(X) setresgid(-1, (X), -1)
# else
#  define setegid(X) (-1)
# endif
#endif
    
#define CRLF "\r\n"

#ifdef WITH_DMALLOC
# define _exit(X) exit(X)
#endif

#ifdef FTPWHO
# define _EXIT(X) do { delete_atomic_file(); ftpwho_exit(X); } while(0)
#else
# define _EXIT(X) do { delete_atomic_file(); _exit(X); } while(0)
#endif

#include "bsd-realpath.h"    
#include "fakechroot.h"
        
#endif