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ckufio.c
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ckufio.c
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/* C K U F I O -- Kermit file system support for UNIX, Aegis, and Plan 9 */
#define CK_NONBLOCK /* See zoutdump() */
#ifdef aegis
char *ckzv = "Aegis File support, 10.0.229, 25 Sep 2022";
#else
#ifdef Plan9
char *ckzv = "Plan 9 File support, 10.0.229, 25 Sep 2022";
#else
char *ckzv = "UNIX File support, 9.0.229, 25 Sep 2022";
#endif /* Plan9 */
#endif /* aegis */
/*
Author: Frank da Cruz <[email protected]>,
Columbia University 1974-2011;
the Open Source Kermit Project 2011-2022.
Copyright (C) 1985, 2022,
Trustees of Columbia University in the City of New York.
All rights reserved. See the C-Kermit COPYING.TXT file or the
copyright text in the ckcmai.c module for disclaimer and permissions.
*/
/*
NOTE TO CONTRIBUTORS: This file, and all the other C-Kermit files, must be
compatible with C preprocessors that support only #ifdef, #else, #endif,
#define, and #undef. Please do not use #if, logical operators, or other
preprocessor features in any of the portable C-Kermit modules. You can,
of course, use these constructions in platform-specific modules where you
know they are supported.
*/
/* Include Files */
#ifdef MINIX2
#define _MINIX
#endif /* MINIX2 */
#include "ckcsym.h"
#include "ckcdeb.h"
#include "ckcasc.h"
#ifndef NOCSETS
#include "ckcxla.h"
#endif /* NOCSETS */
/* To avoid pulling in all of ckuusr.h so we copy the few needed prototypes */
struct mtab { /* Macro table, like keyword table */
char *kwd; /* But with pointers for vals */
char *mval; /* instead of ints. */
short flgs;
};
_PROTOTYP( int mlook, (struct mtab [], char *, int) );
_PROTOTYP( int dodo, (int, char *, int) );
_PROTOTYP( int parser, ( int ) );
#ifdef COMMENT
/* This causes trouble in C-Kermit 8.0. I don't remember the original */
/* reason for this being here but it must have been needed at the time... */
#ifdef OSF13
#ifdef CK_ANSIC
#ifdef _NO_PROTO
#undef _NO_PROTO
#endif /* _NO_PROTO */
#endif /* CK_ANSIC */
#endif /* OSF13 */
#endif /* COMMENT */
#ifndef HPUXPRE65
#include <errno.h> /* Error number symbols */
#else
#ifndef ERRNO_INCLUDED
#include <errno.h> /* Error number symbols */
#endif /* ERRNO_INCLUDED */
#endif /* HPUXPRE65 */
#include <signal.h>
#ifdef MINIX2
#undef MINIX
#undef CKSYSLOG
#include <limits.h>
#include <time.h>
#define NOFILEH
#endif /* MINIX2 */
#ifdef MINIX
#include <limits.h>
#include <sys/types.h>
#include <time.h>
#else
#ifdef POSIX
#include <limits.h>
#else
#ifdef SVR3
#include <limits.h>
#endif /* SVR3 */
#endif /* POSIX */
#endif /* MINIX */
/*
Directory Separator macros, to allow this module to work with both UNIX and
OS/2: Because of ambiguity with the command line editor escape \ character,
the directory separator is currently left as / for OS/2 too, because the
OS/2 kernel also accepts / as directory separator.
*/
#ifndef DIRSEP
#define DIRSEP '/'
#endif /* DIRSEP */
#ifndef ISDIRSEP
#define ISDIRSEP(c) ((c)=='/')
#endif /* ISDIRSEP */
#ifdef SDIRENT
#define DIRENT
#endif /* SDIRENT */
#ifdef XNDIR
#include <sys/ndir.h>
#else /* !XNDIR */
#ifdef NDIR
#include <ndir.h>
#else /* !NDIR, !XNDIR */
#ifdef RTU
#include "/usr/lib/ndir.h"
#else /* !RTU, !NDIR, !XNDIR */
#ifdef DIRENT
#ifdef SDIRENT
#include <sys/dirent.h>
#else
#include <dirent.h>
#endif /* SDIRENT */
#else
#include <sys/dir.h>
#endif /* DIRENT */
#endif /* RTU */
#endif /* NDIR */
#endif /* XNDIR */
#ifdef __NetBSD__
#include <sys/wait.h>
#endif /* __NetBSD__ */
#ifdef UNIX /* Pointer arg to wait() allowed */
#define CK_CHILD /* Assume this is safe in all UNIX */
#endif /* UNIX */
extern int binary, recursive, stathack;
#ifdef CK_CTRLZ
extern int eofmethod;
#endif /* CK_CTRLZ */
#include <pwd.h> /* Password file for shell name */
#ifdef CK_SRP
#include <t_pwd.h> /* SRP Password file */
#endif /* CK_SRP */
#ifdef HPUX10_TRUSTED
#include <hpsecurity.h>
#include <prot.h>
#endif /* HPUX10_TRUSTED */
#ifdef COMMENT
/* Moved to ckcdeb.h */
#ifdef POSIX
#define UTIMEH
#else
#ifdef HPUX9
#define UTIMEH
#endif /* HPUX9 */
#endif /* POSIX */
#endif /* COMMENT */
#ifdef SYSUTIMEH /* <sys/utime.h> if requested, */
#include <sys/utime.h> /* for extra fields required by */
#else /* 88Open spec. */
#ifdef UTIMEH /* or <utime.h> if requested */
#include <utime.h> /* (SVR4, POSIX) */
#ifndef BSD44
#ifndef V7
/* Not sure why this is here. What it implies is that the code bracketed
by SYSUTIMEH is valid on all platforms on which we support time
functionality. But we know that is not true because the BSD44 and V7
platforms do not support sys/utime.h and the data structures which
are defined in them. Now this worked before because prior to today's
changes the UTIMEH definition for BSD44 and V7 did not take place
until after SYSUTIMEH was defined. It also would not have been a
problem if the ordering of all the time blocks was consistent. All but
one of the blocks were BSD44, V7, SYSUTIMEH, <OTHER>. That one case
is where this problem was triggered.
*/
#define SYSUTIMEH /* Use this for both cases. */
#endif /* V7 */
#endif /* BSD44 */
#endif /* UTIMEH */
#endif /* SYSUTIMEH */
#ifndef NOTIMESTAMP
#ifdef POSIX
#ifndef AS400
#define TIMESTAMP
#endif /* AS400 */
#endif /* POSIX */
#ifdef BSD44 /* BSD 4.4 */
#ifndef TIMESTAMP
#define TIMESTAMP /* Can do file dates */
#endif /* TIMESTAMP */
#include <sys/time.h>
#include <sys/timeb.h>
#else /* Not BSD44 */
#ifdef BSD4 /* BSD 4.3 and below */
#define TIMESTAMP /* Can do file dates */
#include <time.h> /* Need this */
#include <sys/timeb.h> /* Need this if really BSD */
#else /* Not BSD 4.3 and below */
#ifdef SVORPOSIX /* System V or POSIX */
#ifndef TIMESTAMP
#define TIMESTAMP
#endif /* TIMESTAMP */
#include <time.h>
/* void tzset(); (the "void" type upsets some compilers) */
#ifndef IRIX60
#ifndef ultrix
#ifndef CONVEX9
/* ConvexOS 9.0, supposedly POSIX, has extern char *timezone(int,int) */
#ifndef Plan9
extern long timezone;
#endif /* Plan9 */
#endif /* CONVEX9 */
#endif /* ultrix */
#endif /* IRIX60 */
#endif /* SVORPOSIX */
#endif /* BSD4 */
#endif /* BSD44 */
#ifdef COHERENT
#include <time.h>
#endif /* COHERENT */
/* Is `y' a leap year? */
#define leap(y) (((y) % 4 == 0 && (y) % 100 != 0) || (y) % 400 == 0)
/* Number of leap years from 1970 to `y' (not including `y' itself). */
#define nleap(y) (((y) - 1969) / 4 - ((y) - 1901) / 100 + ((y) - 1601) / 400)
#endif /* NOTIMESTAMP */
#ifdef CIE
#include <stat.h> /* File status */
#else
#include <sys/stat.h>
#endif /* CIE */
/* Macro to alleviate isdir() calls internal to this module */
static struct stat STATBUF;
#define xisdir(a) ((stat(a,&STATBUF)==-1)?0:(S_ISDIR(STATBUF.st_mode)?1:0))
extern char uidbuf[];
extern int xferlog;
extern char * xferfile;
int iklogopen = 0;
static time_t timenow;
#define IKSDMSGLEN CKMAXPATH+512
static char iksdmsg[IKSDMSGLEN];
extern int local;
extern int server, en_mkd, en_cwd, en_del;
/*
Functions (n is one of the predefined file numbers from ckcker.h):
zopeni(n,name) -- Opens an existing file for input.
zopeno(n,name,attr,fcb) -- Opens a new file for output.
zclose(n) -- Closes a file.
zchin(n,&c) -- Gets the next character from an input file.
zsinl(n,&s,x) -- Read a line from file n, max len x, into address s.
zsout(n,s) -- Write a null-terminated string to output file, buffered.
zsoutl(n,s) -- Like zsout, but appends a line terminator.
zsoutx(n,s,x) -- Write x characters to output file, unbuffered.
zchout(n,c) -- Add a character to an output file, unbuffered.
zchki(name) -- Check if named file exists and is readable, return size.
zchko(name) -- Check if named file can be created.
zchkspa(name,n) -- Check if n bytes available to create new file, name.
znewn(name,s) -- Make a new unique file name based on the given name.
zdelet(name) -- Delete the named file.
zxpand(string) -- Expands the given wildcard string into a list of files.
znext(string) -- Returns the next file from the list in "string".
zxrewind() -- Rewind zxpand list.
zxcmd(n,cmd) -- Execute the command in a lower fork on file number n.
zclosf() -- Close input file associated with zxcmd()'s lower fork.
zrtol(n1,n2) -- Convert remote filename into local form.
zltor(n1,n2) -- Convert local filename into remote form.
zchdir(dirnam) -- Change working directory.
zhome() -- Return pointer to home directory name string.
zkself() -- Kill self, log out own job.
zsattr(struct zattr *) -- Return attributes for file which is being sent.
zstime(f, struct zattr *, x) - Set file creation date from attribute packet.
zrename(old, new) -- Rename a file.
zcopy(source,destination) -- Copy a file.
zmkdir(path) -- Create the directory path if possible
zfnqfp(fname,len,fullpath) - Determine full path for file name.
zgetfs(name) -- return file size regardless of accessibility
zchkpid(pid) -- tell if PID is valid and active
*/
/* Kermit-specific includes */
/*
Definitions here supersede those from system include files.
ckcdeb.h is included above.
*/
#include "ckcker.h" /* Kermit definitions */
#include "ckucmd.h" /* For keyword tables */
#include "ckuver.h" /* Version herald */
char *ckzsys = HERALD;
/*
File access checking ... There are two calls to access() in this module.
If this program is installed setuid or setgid on a Berkeley-based UNIX
system that does NOT incorporate the saved-original-effective-uid/gid
feature, then, when we have swapped the effective and original uid/gid,
access() fails because it uses what it thinks are the REAL ids, but we have
swapped them. This occurs on systems where ANYBSD is defined, NOSETREU
is NOT defined, and SAVEDUID is NOT defined. So, in theory, we should take
care of this situation like so:
ifdef ANYBSD
ifndef NOSETREU
ifndef SAVEDUID
define SW_ACC_ID
endif
endif
endif
But we can't test such a general scheme everywhere, so let's only do this
when we know we have to...
*/
#ifdef NEXT /* NeXTSTEP 1.0-3.0 */
#define SW_ACC_ID
#endif /* NEXT */
/* Support for tilde-expansion in file and directory names */
#ifdef POSIX
#define NAMEENV "LOGNAME"
#else
#ifdef BSD4
#define NAMEENV "USER"
#else
#ifdef ATTSV
#define NAMEENV "LOGNAME"
#endif /* ATTSV */
#endif /* BSD4 */
#endif /* POSIX */
/* Berkeley Unix Version 4.x */
/* 4.1bsd support from Charles E Brooks, EDN-VAX */
#ifdef BSD4
#ifdef MAXNAMLEN
#define BSD42
#endif /* MAXNAMLEN */
#endif /* BSD4 */
/* Definitions of some system commands */
char *DELCMD = "rm -f "; /* For file deletion */
char *CPYCMD = "cp "; /* For file copy */
char *RENCMD = "mv "; /* For file rename */
char *PWDCMD = "pwd "; /* For saying where I am */
#ifdef COMMENT
#ifdef HPUX10
char *DIRCMD = "/usr/bin/ls -l "; /* For directory listing */
char *DIRCM2 = "/usr/bin/ls -l "; /* For directory listing, no args */
#else
char *DIRCMD = "/bin/ls -l "; /* For directory listing */
char *DIRCM2 = "/bin/ls -l "; /* For directory listing, no args */
#endif /* HPUX10 */
#else
char *DIRCMD = "ls -l "; /* For directory listing */
char *DIRCM2 = "ls -l "; /* For directory listing, no args */
#endif /* COMMENT */
char *TYPCMD = "cat "; /* For typing a file */
#ifdef HPUX
char *MAILCMD = "mailx"; /* For sending mail */
#else
#ifdef DGUX540
char *MAILCMD = "mailx";
#else
#ifdef UNIX
#ifdef CK_MAILCMD
char *MAILCMD = CK_MAILCMD; /* CFLAGS override */
#else
char *MAILCMD = "Mail"; /* Default */
#endif /* CK_MAILCMD */
#else
char *MAILCMD = "";
#endif /* UNIX */
#endif /* HPUX */
#endif /* DGUX40 */
#ifdef UNIX
#ifdef ANYBSD /* BSD uses lpr to spool */
#ifdef DGUX540 /* And DG/UX */
char * PRINTCMD = "lp";
#else
char * PRINTCMD = "lpr";
#endif /* DGUX540 */
#else /* Sys V uses lp */
#ifdef TRS16 /* except for Tandy-16/6000... */
char * PRINTCMD = "lpr";
#else
char * PRINTCMD = "lp";
#endif /* TRS16 */
#endif /* ANYBSD */
#else /* Not UNIX */
#define PRINTCMD ""
#endif /* UNIX */
#ifdef FT18 /* Fortune For:Pro 1.8 */
#undef BSD4
#endif /* FT18 */
#ifdef BSD4
char *SPACMD = "pwd ; df ."; /* Space in current directory */
#else
#ifdef FT18
char *SPACMD = "pwd ; du ; df .";
#else
char *SPACMD = "df ";
#endif /* FT18 */
#endif /* BSD4 */
char *SPACM2 = "df "; /* For space in specified directory */
#ifdef FT18
#define BSD4
#endif /* FT18 */
#ifdef BSD4
char *WHOCMD = "finger ";
#else
char *WHOCMD = "who ";
#endif /* BSD4 */
/* More system-dependent includes, which depend on symbols defined */
/* in the Kermit-specific includes. Oh what a tangled web we weave... */
#ifdef COHERENT /* <sys/file.h> */
#define NOFILEH
#endif /* COHERENT */
#ifdef MINIX
#define NOFILEH
#endif /* MINIX */
#ifdef aegis
#define NOFILEH
#endif /* aegis */
#ifdef unos
#define NOFILEH
#endif /* unos */
#ifndef NOFILEH
#include <sys/file.h>
#endif /* NOFILEH */
#ifndef is68k /* Whether to include <fcntl.h> */
#ifndef BSD41 /* All but a couple UNIXes have it. */
#ifndef FT18
#ifndef COHERENT
#include <fcntl.h>
#endif /* COHERENT */
#endif /* FT18 */
#endif /* BSD41 */
#endif /* is68k */
#ifdef COHERENT
#ifdef _I386
#include <fcntl.h>
#else
#include <sys/fcntl.h>
#endif /* _I386 */
#endif /* COHERENT */
extern int inserver; /* I am IKSD */
int guest = 0; /* Anonymous user */
#ifdef IKSD
extern int isguest;
extern char * anonroot;
#endif /* IKSD */
#ifdef CK_LOGIN
#define GUESTPASS 256
static char guestpass[GUESTPASS] = { NUL, NUL }; /* Anonymous "password" */
static int logged_in = 0; /* Set when user is logged in */
static int askpasswd = 0; /* Have OK user, must ask for passwd */
#ifdef CK_PAM
extern int gotemptypasswd;
#endif /* CK_PAM */
#endif /* CK_LOGIN */
#ifdef CKROOT
static char ckroot[CKMAXPATH+1] = { NUL, NUL };
static int ckrootset = 0;
int ckrooterr = 0;
#endif /* CKROOT */
_PROTOTYP( VOID ignorsigs, (void) );
_PROTOTYP( VOID restorsigs, (void) );
#ifdef SELECT
_PROTOTYP( int ttwait, (int, int) ); /* ckutio.c */
#endif /* SELECT */
/*
Change argument to "(const char *)" if this causes trouble.
Or... if it causes trouble, then maybe it was already declared
in a header file after all, so you can remove this prototype.
*/
#ifndef NDGPWNAM /* If not defined No Declare getpwnam... */
#ifndef _POSIX_SOURCE
#ifndef NEXT
#ifndef SVR4
/* POSIX <pwd.h> already gave prototypes for these. */
#ifdef IRIX40
_PROTOTYP( struct passwd * getpwnam, (const char *) );
#else
#ifdef IRIX51
_PROTOTYP( struct passwd * getpwnam, (const char *) );
#else
#ifdef M_UNIX
_PROTOTYP( struct passwd * getpwnam, (const char *) );
#else
#ifdef HPUX9
_PROTOTYP( struct passwd * getpwnam, (const char *) );
#else
#ifdef HPUX10
_PROTOTYP( struct passwd * getpwnam, (const char *) );
#else
#ifdef DCGPWNAM
_PROTOTYP( struct passwd * getpwnam, (const char *) );
#else
_PROTOTYP( struct passwd * getpwnam, (char *) );
#endif /* DCGPWNAM */
#endif /* HPUX10 */
#endif /* HPUX9 */
#endif /* M_UNIX */
#endif /* IRIX51 */
#endif /* IRIX40 */
#ifndef SUNOS4
#ifndef HPUX9
#ifndef HPUX10
#ifndef _SCO_DS
_PROTOTYP( struct passwd * getpwuid, (PWID_T) );
#endif /* _SCO_DS */
#endif /* HPUX10 */
#endif /* HPUX9 */
#endif /* SUNOS4 */
_PROTOTYP( struct passwd * getpwent, (void) );
#endif /* SVR4 */
#endif /* NEXT */
#endif /* _POSIX_SOURCE */
#endif /* NDGPWNAM */
#ifdef CK_SHADOW /* Shadow Passwords... */
#include <shadow.h>
#endif /* CK_SHADOW */
#ifdef CK_PAM /* PAM... */
#ifdef MACOSX
#include <pam/pam_appl.h>
#else /* MACOSX */
#include <security/pam_appl.h>
#endif /* MACOSX */
#ifndef PAM_SERVICE_TYPE /* Defines which PAM service we are */
#define PAM_SERVICE_TYPE "kermit"
#endif /* PAM_SERVICE_TYPE */
#ifdef SOLARIS
#define PAM_CONST
#else /* SOLARIS */
#define PAM_CONST CONST
#endif
static char * pam_pw = NULL;
int
#ifdef CK_ANSIC
pam_cb(int num_msg,
PAM_CONST struct pam_message **msg,
struct pam_response **resp,
void *appdata_ptr
)
#else /* CK_ANSIC */
pam_cb(num_msg, msg, resp, appdata_ptr)
int num_msg;
PAM_CONST struct pam_message **msg;
struct pam_response **resp;
void *appdata_ptr;
#endif /* CK_ANSIC */
{
int i;
debug(F111,"pam_cb","num_msg",num_msg);
for (i = 0; i < num_msg; i++) {
char message[PAM_MAX_MSG_SIZE];
/* Issue prompt and get response */
debug(F111,"pam_cb","Message",i);
debug(F111,"pam_cb",msg[i]->msg,msg[i]->msg_style);
if (msg[i]->msg_style == PAM_ERROR_MSG) {
debug(F111,"pam_cb","PAM ERROR",0);
fprintf(stdout,"%s\n", msg[i]->msg);
return(0);
} else if (msg[i]->msg_style == PAM_TEXT_INFO) {
debug(F111,"pam_cb","PAM TEXT INFO",0);
fprintf(stdout,"%s\n", msg[i]->msg);
return(0);
} else if (msg[i]->msg_style == PAM_PROMPT_ECHO_OFF) {
debug(F111,"pam_cb","Reading response, no echo",0);
/* Ugly hack. We check to see if a password has been pushed */
/* into zvpasswd(). This would be true if the password was */
/* received by REMOTE LOGIN. */
if (pam_pw) {
ckstrncpy(message,pam_pw,PAM_MAX_MSG_SIZE);
} else
readpass((char *)msg[i]->msg,message,PAM_MAX_MSG_SIZE);
} else if (msg[i]->msg_style == PAM_PROMPT_ECHO_ON) {
debug(F111,"pam_cb","Reading response, with echo",0);
readtext((char *)msg[i]->msg,message,PAM_MAX_MSG_SIZE);
} else {
debug(F111,"pam_cb","unknown style",0);
return(0);
}
/* Allocate space for this message's response structure */
resp[i] = (struct pam_response *) malloc(sizeof (struct pam_response));
if (!resp[i]) {
int j;
debug(F110,"pam_cb","malloc failure",0);
for (j = 0; j < i; j++) {
free(resp[j]->resp);
free(resp[j]);
}
return(0);
}
/* Allocate a buffer for the response */
resp[i]->resp = (char *) malloc((int)strlen(message) + 1);
if (!resp[i]->resp) {
int j;
debug(F110,"pam_cb","malloc failure",0);
for (j = 0; j < i; j++) {
free(resp[j]->resp);
free(resp[j]);
}
free(resp[i]);
return(0);
}
/* Return the results back to PAM */
strcpy(resp[i]->resp, message); /* safe (prechecked) */
resp[i]->resp_retcode = 0;
}
debug(F110,"pam_cb","Exiting",0);
return(0);
}
#endif /* CK_PAM */
/* Define macros for getting file type */
#ifdef OXOS
/*
Olivetti X/OS 2.3 has S_ISREG and S_ISDIR defined
incorrectly, so we force their redefinition.
*/
#undef S_ISREG
#undef S_ISDIR
#endif /* OXOS */
#ifdef UTSV /* Same deal for Amdahl UTSV */
#undef S_ISREG
#undef S_ISDIR
#endif /* UTSV */
#ifdef UNISYS52 /* And for UNISYS UTS V 5.2 */
#undef S_ISREG
#undef S_ISDIR
#endif /* UNISYS52 */
#ifdef ICLSVR3 /* And for old ICL versions */
#undef S_ISREG
#undef S_ISDIR
#endif /* ICLSVR3 */
#ifdef ISDIRBUG /* Also allow this from command line */
#ifdef S_ISREG
#undef S_ISREG
#endif /* S_ISREG */
#ifdef S_ISDIR
#undef S_ISDIR
#endif /* S_ISDIR */
#endif /* ISDIRBUG */
#ifndef _IFMT
#ifdef S_IFMT
#define _IFMT S_IFMT
#else
#define _IFMT 0170000
#endif /* S_IFMT */
#endif /* _IFMT */
#ifndef S_ISREG
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif /* S_ISREG */
#ifndef S_ISDIR
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif /* S_ISDIR */
/* The following mainly for NeXTSTEP... */
#ifndef S_IWUSR
#define S_IWUSR 0000200
#endif /* S_IWUSR */
#ifndef S_IRGRP
#define S_IRGRP 0000040
#endif /* S_IRGRP */
#ifndef S_IWGRP
#define S_IWGRP 0000020
#endif /* S_IWGRP */
#ifndef S_IXGRP
#define S_IXGRP 0000010
#endif /* S_IXGRP */
#ifndef S_IROTH
#define S_IROTH 0000004
#endif /* S_IROTH */
#ifndef S_IWOTH
#define S_IWOTH 0000002
#endif /* S_IWOTH */
#ifndef S_IXOTH
#define S_IXOTH 0000001
#endif /* S_IXOTH */
/*
Define maximum length for a file name if not already defined.
NOTE: This applies to a path segment (directory or file name),
not the entire path string, which can be CKMAXPATH bytes long.
*/
#ifdef QNX
#ifdef _MAX_FNAME
#define MAXNAMLEN _MAX_FNAME
#else
#define MAXNAMLEN 48
#endif /* _MAX_FNAME */
#else
#ifndef MAXNAMLEN
#ifdef sun
#define MAXNAMLEN 255
#else
#ifdef FILENAME_MAX
#define MAXNAMLEN FILENAME_MAX
#else
#ifdef NAME_MAX
#define MAXNAMLEN NAME_MAX
#else
#ifdef _POSIX_NAME_MAX
#define MAXNAMLEN _POSIX_NAME_MAX
#else
#ifdef _D_NAME_MAX
#define MAXNAMLEN _D_NAME_MAX
#else
#ifdef DIRSIZ
#define MAXNAMLEN DIRSIZ
#else
#define MAXNAMLEN 14
#endif /* DIRSIZ */
#endif /* _D_NAME_MAX */
#endif /* _POSIX_NAME_MAX */
#endif /* NAME_MAX */
#endif /* FILENAME_MAX */
#endif /* sun */
#endif /* MAXNAMLEN */
#endif /* QNX */
#ifdef COMMENT
/* As of 2001-11-03 this is handled in ckcdeb.h */
/* Longest pathname ... */
/*
Beware: MAXPATHLEN is one of UNIX's dirty little secrets. Where is it
defined? Who knows... <param.h>, <mod.h>, <unistd.h>, <limits.h>, ...
There is not necessarily even a definition for it anywhere, or it might have
another name. If you get it wrong, bad things happen with getcwd() and/or
getwd(). If you allocate a buffer that is too short, getwd() might write
over memory and getcwd() will fail with ERANGE. The definitions of these
functions (e.g. in SVID or POSIX.1) do not tell you how to determine the
maximum path length in order to allocate a buffer that is the right size.
*/
/* 2021-10-31 SMS.
* Hence, use ckcdeb.h:CKMAXPATH, and forget about MAXPATHLEN here.
* Considerable tidying here should be possible.
*/
#ifdef BSD44
#include <sys/param.h> /* For MAXPATHLEN */
#endif /* BSD44 */
#ifdef COHERENT
#include <sys/param.h> /* for MAXPATHLEN, needed for -DDIRENT */
#endif /* COHERENT */
#endif /* COMMENT */
#ifdef MAXPATHLEN
#ifdef MAXPATH
#undef MAXPATH
#endif /* MAXPATH */
#define MAXPATH MAXPATHLEN
#else
#ifdef PATH_MAX
#define MAXPATH PATH_MAX
#else
#ifdef _POSIX_PATH_MAX
#define MAXPATH _POSIX_PATH_MAX
#else
#ifdef BSD42
#define MAXPATH 1024
#else
#ifdef SVR4
#define MAXPATH 1024
#else
#define MAXPATH 255
#endif /* SVR4 */
#endif /* BSD42 */
#endif /* _POSIX_PATH_MAX */
#endif /* PATH_MAX */
#endif /* MAXPATHLEN */
/* Maximum number of filenames for wildcard expansion */
#ifndef MAXWLD
/* Already defined in ckcdeb.h so the following is superfluous. */
/* Don't expect changing them to have any effect. */
#ifdef CK_SMALL
#define MAXWLD 50
#else
#ifdef BIGBUFOK
#define MAXWLD 102400
#else
#define MAXWLD 8192
#endif /* BIGBUFOK */
#endif /* CK_SMALL */
#endif /* MAXWLD */
static int maxnames = MAXWLD;
/* Define the size of the string space for filename expansion. */
#ifndef DYNAMIC
#ifdef PROVX1
#define SSPACE 500
#else
#ifdef BSD29
#define SSPACE 500
#else
#ifdef pdp11
#define SSPACE 500
#else
#ifdef aegis
#define SSPACE 10000 /* Size of string-generating buffer */
#else /* Default static buffer size */
#ifdef BIGBUFOK
#define SSPACE 65000 /* Size of string-generating buffer */
#else
#define SSPACE 2000 /* size of string-generating buffer */
#endif /* BIGBUFOK */
#endif /* aegis */
#endif /* pdp11 */
#endif /* BSD29 */
#endif /* PROVX1 */
static char sspace[SSPACE]; /* Buffer for generating filenames */
#else /* is DYNAMIC */
#ifdef CK_64BIT
#define SSPACE 2000000000 /* Two billion bytes */
#else
#ifdef BIGBUFOK
#define SSPACE 10000000 /* Ten million */
#else
#define SSPACE 10000 /* Ten thousand */
#endif /* BIGBUFOK */
#endif /* CK_64BIT */
char *sspace = (char *)0;
#endif /* DYNAMIC */
static int ssplen = SSPACE; /* Length of string space buffer */
#ifdef DCLFDOPEN
/* fdopen() needs declaring because it's not declared in <stdio.h> */
_PROTOTYP( FILE * fdopen, (int, char *) );
#endif /* DCLFDOPEN */
#ifdef DCLPOPEN
/* popen() needs declaring because it's not declared in <stdio.h> */
_PROTOTYP( FILE * popen, (char *, char *) );
#endif /* DCLPOPEN */
extern int nopush;
/* More internal function prototypes */
/*
* The path structure is used to represent the name to match.
* Each slash-separated segment of the name is kept in one
* such structure, and they are linked together, to make
* traversing the name easier.
*/
struct path {
char npart[MAXNAMLEN+4]; /* name part of path segment */
struct path *fwd; /* forward ptr */
};
#ifndef NOPUSH
_PROTOTYP( int shxpand, (char *, char *[], int ) );
#endif /* NOPUSH */
_PROTOTYP( static int fgen, (char *, char *[], int ) );
_PROTOTYP( static VOID traverse, (struct path *, char *, char *) );
_PROTOTYP( static VOID addresult, (char *, int) );
#ifdef COMMENT
/* Replaced by ckmatch() */
_PROTOTYP( static int match, (char *, char *) );
#endif /* COMMENT */
_PROTOTYP( char * whoami, (void) );
_PROTOTYP( UID_T real_uid, (void) );
_PROTOTYP( static struct path *splitpath, (char *p) );
_PROTOTYP( char * zdtstr, (time_t) );
_PROTOTYP( time_t zstrdt, (char *, int) );
/* Some systems define these symbols in include files, others don't... */
#ifndef R_OK
#define R_OK 4 /* For access */
#endif /* R_OK */
#ifndef W_OK
#define W_OK 2
#endif /* W_OK */
#ifndef X_OK
#define X_OK 1
#endif /* X_OK */
#ifndef O_RDONLY
#define O_RDONLY 000
#endif /* O_RDONLY */
/* syslog and wtmp items for Internet Kermit Service */
extern char * clienthost; /* From ckcmai.c. */
static char fullname[CKMAXPATH+1];
static char tmp2[CKMAXPATH+1];
extern int ckxlogging;
#ifdef CKXPRINTF /* Our printf macro conflicts with */
#undef printf /* use of "printf" in syslog.h */
#endif /* CKXPRINTF */
#ifdef CKSYSLOG
#ifdef RTAIX
#include <sys/syslog.h>
#else /* RTAIX */
#include <syslog.h>
#endif /* RTAIX */
#endif /* CKSYSLOG */
#ifdef CKXPRINTF
#define printf ckxprintf
#endif /* CKXPRINTF */
#ifdef CK_AUTHENTICATION
#include "ckuath.h" /* fdc 2021-12-17 */
#endif /* CK_AUTHENTICATION */
int ckxanon = 1; /* Anonymous login ok */
int ckxperms = 0040; /* Anonymous file permissions */