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HAM Radio 3
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hamradioversion3.0examsandprograms1992.iso
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9q920411
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files.c
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C/C++ Source or Header
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1991-05-12
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10KB
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315 lines
/* System-dependent definitions of various files, spool directories, etc */
#include <stdio.h>
#include "global.h"
#include "netuser.h"
#include "files.h"
#ifdef MSDOS
char *Startup = "/autoexec.net"; /* Initialization file */
char *Userfile = "/ftpusers"; /* Authorized FTP users and passwords */
char *Maillog = "/spool/mail.log"; /* mail log */
char *Mailspool = "/spool/mail"; /* Incoming mail */
char *Mailqdir = "/spool/mqueue"; /* Outgoing mail spool */
char *Mailqueue = "/spool/mqueue/*.wrk"; /* Outgoing mail work files */
char *Routeqdir = "/spool/rqueue"; /* queue for router */
char *Alias = "/alias"; /* the alias file */
char *Dfile = "/domain.txt"; /* Domain cache */
char *Fdir = "/finger"; /* Finger info directory */
char *Arealist = "/spool/areas";/* List of message areas */
char *Helpdir = "/spool/help"; /* Mailbox help file directory */
char *Rewritefile = "/spool/rewrite"; /* Address rewrite file */
char *Newsdir = "/spool/news"; /* News messages and NNTP data */
char *Popusers = "/popusers"; /* POP user and passwd file */
char *Signature = "/spool/signatur"; /* Mail signature file directory */
char *Forwardfile = "/spool/forward.bbs"; /* Mail forwarding file */
char *Historyfile = "/spool/history"; /* Message ID history file */
char Eol[] = "\r\n";
#define SEPARATOR "/"
#endif
#ifdef UNIX
char *Startup = "./startup.net"; /* Initialization file */
char *Config = "./config.net"; /* Device configuration list */
char *Userfile = "./ftpusers";
char *Mailspool = "./mail";
char *Maillog = "./mail.log"; /* mail log */
char *Mailqdir = "./mqueue";
char *Mailqueue = "./mqueue/*.wrk";
char *Routeqdir = "./rqueue"; /* queue for router */
char *Alias = "./alias"; /* the alias file */
char *Dfile = "./domain.txt"; /* Domain cache */
char *Fdir = "./finger"; /* Finger info directory */
char *Arealist = "./areas"; /* List of message areas */
char *Helpdir = "./help"; /* Mailbox help file directory */
char *Rewritefile = "./rewrite"; /* Address rewrite file */
char *Newsdir = "./news"; /* News messages and NNTP data */
char *Popusers = "./popusers"; /* POP user and passwd file */
char *Signature = "./signatur"; /* Mail signature file directory */
char *Forwardfile = "./forward.bbs"; /* Mail forwarding file */
char *Historyfile = "./history"; /* Message ID history file */
#define SEPARATOR "/"
char Eol[] = "\n";
#endif
#ifdef AMIGA
char *Startup = "TCPIP:net-startup";
char *Config = "TCPIP:config.net"; /* Device configuration list */
char *Userfile = "TCPIP:ftpusers";
char *Mailspool = "TCPIP:spool/mail";
char *Maillog = "TCPIP:spool/mail.log";
char *Mailqdir = "TCPIP:spool/mqueue";
char *Mailqueue = "TCPIP:spool/mqueue/#?.wrk";
char *Routeqdir = "TCPIP:spool/rqueue"; /* queue for router */
char *Alias = "TCPIP:alias"; /* the alias file */
char *Dfile = "TCPIP:domain.txt"; /* Domain cache */
char *Fdir = "TCPIP:finger"; /* Finger info directory */
char *Arealist = "TCPIP:spool/areas"; /* List of message areas */
char *Helpdir = "TCPIP:spool/help"; /* Mailbox help file directory */
char *Rewritefile = "TCPIP:spool/rewrite"; /* Address rewrite file */
char *Newsdir = "TCPIP:spool/news"; /* News messages and NNTP data */
char *Popusers = "TCPIP:/popusers"; /* POP user and passwd file */
char *Signature = "TCPIP:spool/signatur"; /* Mail signature file directory */
char *Forwardfile = "TCPIP:spool/forward.bbs"; /* Mail forwarding file */
char *Historyfile = "TCPIP:spool/history"; /* Message ID history file */
#define SEPARATOR "/"
char Eol[] = "\r\n";
#endif
#ifdef MAC
char *Startup ="Mikes Hard Disk:net.start";
char *Config = "Mikes Hard Disk:config.net"; /* Device configuration list */
char *Userfile = "Mikes Hard Disk:ftpusers";
char *Mailspool = "Mikes Hard Disk:spool:mail:";
char *Maillog = "Mikes Hard Disk:spool:mail.log:";
char *Mailqdir = "Mikes Hard Disk:spool:mqueue:";
char *Mailqueue = "Mikes Hard Disk:spool:mqueue:*.wrk";
char *Routeqdir = "Mikes Hard Disk:spool/rqueue:"; /* queue for router */
char *Alias = "Mikes Hard Disk:alias"; /* the alias file */
char *Dfile = "Mikes Hard Disk:domain:txt"; /* Domain cache */
char *Fdir = "Mikes Hard Disk:finger"; /* Finger info directory */
char *Arealist = "Mikes Hard Disk:spool/areas"; /* List of message areas */
char *Helpdir = "Mikes Hard Disk:spool/help"; /* Mailbox help file directory */
char *Rewritefile = "Mikes Hard Disk:spool/rewrite"; /* Address rewrite file */
char *Newsdir = "Mikes Hard Disk:spool/news"; /* News messages and NNTP data */
char *Popusers = "Mikes Hard Disk:/popusers"; /* POP user and passwd file */
char *Signature = "Mikes Hard Disk:spool/signatur"; /* Mail signature file directory */
char *Forwardfile = "Mikes Hard Disk:spool/forward.bbs"; /* Mail forwarding file */
char *Historyfile = "Mikes Hard Disk:spool/history"; /* Message ID history file */
#define SEPARATOR ":"
char Eol[] = "\r";
#endif
static char *rootdir = "";
/* Establish a root directory other than the default. Can only be called
* once, at startup time
*/
void
initroot(root)
char *root;
{
rootdir = strdup( root );
Startup = rootdircat(Startup);
Userfile = rootdircat(Userfile);
Maillog = rootdircat(Maillog);
Mailspool = rootdircat(Mailspool);
Mailqdir = rootdircat(Mailqdir);
Mailqueue = rootdircat(Mailqueue);
Routeqdir = rootdircat(Routeqdir);
Alias = rootdircat(Alias);
Dfile = rootdircat(Dfile);
Fdir = rootdircat(Fdir);
Arealist = rootdircat(Arealist);
Helpdir = rootdircat(Helpdir);
Rewritefile = rootdircat(Rewritefile);
Newsdir = rootdircat(Newsdir);
Signature = rootdircat(Signature);
Forwardfile = rootdircat(Forwardfile);
Historyfile = rootdircat(Historyfile);
}
/* Concatenate root, separator and arg strings into a malloc'ed output
* buffer, then remove repeated occurrences of the separator char
*/
char *
rootdircat(filename)
char *filename;
{
char *out = filename;
if ( strlen(rootdir) > 0 ) {
char *separator = SEPARATOR;
out = mallocw( strlen(rootdir)
+ strlen(separator)
+ strlen(filename) + 1);
strcpy(out,rootdir);
strcat(out,separator);
strcat(out,filename);
if(*separator != '\0'){
char *p1, *p2;
/* Remove any repeated occurrences */
p1 = p2 = out;
while(*p2 != '\0'){
*p1++ = *p2++;
while(p2[0] == p2[-1] && p2[0] == *separator)
p2++;
}
*p1 = '\0';
}
}
return out;
}
/* Read through FTPUSERS looking for user record
* Returns line which matches username, or NULLCHAR when no match.
* Each of the other variables must be copied before freeing the line.
*/
char *
userlookup(username,password,directory,permission,ip_address)
char *username;
char **password;
char **directory;
int *permission;
int32 *ip_address;
{
FILE *fp;
char *buf;
char *cp;
if((fp = fopen(Userfile,READ_TEXT)) == NULLFILE)
/* Userfile doesn't exist */
return NULLCHAR;
buf = mallocw(128);
while ( fgets(buf,128,fp) != NULLCHAR ){
if(*buf == '#')
continue; /* Comment */
if((cp = strchr(buf,' ')) == NULLCHAR)
/* Bogus entry */
continue;
*cp++ = '\0'; /* Now points to password */
if( stricmp(username,buf) == 0 )
break; /* Found user */
}
if(feof(fp)){
/* username not found in file */
fclose(fp);
free(buf);
return NULLCHAR;
}
fclose(fp);
if ( password != NULL )
*password = cp;
/* Look for space after password field in file */
if((cp = strchr(cp,' ')) == NULLCHAR) {
/* Invalid file entry */
free(buf);
return NULLCHAR;
}
*cp++ = '\0'; /* Now points to directory field */
if ( directory != NULL )
*directory = cp;
if((cp = strchr(cp,' ')) == NULLCHAR) {
/* Permission field missing */
free(buf);
return NULLCHAR;
}
*cp++ = '\0'; /* now points to permission field */
if ( permission != NULL )
*permission = (int)strtol( cp, NULLCHARP, 0 );
if((cp = strchr(cp,' ')) == NULLCHAR) {
/* IP address missing */
if ( ip_address != NULL )
*ip_address = 0L;
} else {
*cp++ = '\0'; /* now points at IP address field */
if ( ip_address != NULL )
*ip_address = resolve( cp );
}
return buf;
}
/* Subroutine for logging in the user whose name is name and password is pass.
* The buffer path should be long enough to keep a line from the userfile.
* If pwdignore is true, the password check will be overridden.
* The return value is the permissions field or -1 if the login failed.
* Path is set to point at the path field, and pwdignore will be true if no
* particular password was needed for this user.
*/
int
userlogin(name,pass,path,len,pwdignore)
char *name;
char *pass;
char **path;
int len; /* Length of buffer pointed at by *path */
int *pwdignore;
{
char *buf;
char *password;
char *directory;
int permission;
int anonymous;
char *cp;
if ( (buf = userlookup( name, &password, &directory,
&permission, NULL )) == NULLCHAR ) {
return -1;
}
anonymous = *pwdignore;
if ( strcmp(password,"*") == 0 )
anonymous = TRUE; /* User ID is password-free */
if(!anonymous && strcmp(password,pass) != 0) {
/* Password required, but wrong one given */
free(buf);
return -1;
}
if ( strlen( directory ) + 1 > len ) {
/* not enough room for path */
free(buf);
return -1;
}
#if defined(AMIGA)
/*
* Well, on the Amiga, a file can be referenced by many names:
* device names (DF0:) or volume names (My_Disk:). This hunk of code
* passed the pathname specified in the ftpusers file, and gets the
* absolute path copied into the user's buffer. We really should just
* allocate the buffer and return a pointer to it, since the caller
* really doesn't have a good idea how long the path string is..
*/
if ( (directory = pathname("", directory)) != NULLCHAR ) {
strcpy(*path, directory);
free(directory);
} else {
**path = '\0';
}
#else
strcpy(*path,directory);
/* Convert any backslashes to forward slashes, for backward
* compatibility with the old NET
*/
while((cp = strchr(*path,'\\')) != NULLCHAR)
*cp = '/';
#endif
free(buf);
*pwdignore = anonymous;
/* Finally return the permission bits */
return permission;
}