完整的TCPIP!验证过的!
源代码在线查看： files.h
#ifndef _FILES_H
#define _FILES_H
/* Permission bits in FTPUSERS file */
#define FTP_READ 1 /* Read files */
#define FTP_CREATE 2 /* Create new files */
#define FTP_WRITE 4 /* Overwrite or delete existing files */
#define AX25_CMD 8 /* AX.25 gateway operation allowed */
#define TELNET_CMD 16 /* Telnet gateway operation allowed */
#define NETROM_CMD 32 /* NET/ROM gateway operation allowed */
#define SYSOP_CMD 64 /* Remote sysop access allowed */
#define EXCLUDED_CMD 128 /* This user is banned from the BBS */
#define PPP_ACCESS_PRIV 0x0100 /* Priv bit for PPP connection */
#define PPP_PWD_LOOKUP 0x0200 /* Priv bit for peerID/pass lookup */
/* External definitions for configuration-dependent file names set in
* files.c
*/
extern char *Startup; /* Initialization file */
extern char *Userfile; /* Authorized FTP users and passwords */
extern char *Maillog; /* mail log */
extern char *Mailspool; /* Incoming mail */
extern char *Mailqdir; /* Outgoing mail spool */
extern char *Mailqueue; /* Outgoing mail work files */
extern char *Routeqdir; /* queue for router */
extern char *Alias; /* the alias file */
extern char *Dfile; /* Domain cache */
extern char *Fdir; /* Finger info directory */
extern char *Arealist; /* List of message areas */
extern char *Helpdir; /* Mailbox help file directory */
extern char *Rewritefile; /* Address rewrite file */
extern char *Newsdir; /* News messages and NNTP data */
extern char *Popusers; /* POP2 user and passwd file */
extern char *Signature; /* Mail signature file directory */
extern char *Forwardfile; /* Mail forwarding file */
extern char *Historyfile; /* Message ID history file */
void initroot(char *root);
char *rootdircat(char *filename);
int userlogin(char *name,char *pass,char **path,int len,int *pwdignore);
char *userlookup(char *username, char **password, char **directory,
int *permission, int32 *ip_address);
void usercvt(void);
#endif /* _FILES_H */
