solution to Re: heimdal 0.6.4 ftpd crash

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solution to Re: heimdal 0.6.4 ftpd crash

David Komanek

Hi,

it seems I have overcome the problems with ftpd on debian 3.1rc3. The
problem is definitely connected to debian's /usr/include/glob.h file from
libc6-dev package. If I rename it for the configure+compile time, there
are no more crashes.

The 425 error message in ftp client originated from my poor knowledge how
ftpd works. It was present only in debigging mode when ftpd does not fork
childs for active transfer mode requests (passive mode works fine even in
debug mode).

I am attaching debian's glob.h file for you if you would like to give more
testing at the configure-time for presence of unsuitable header files.

Thank you for the previous help.

David

P.S.: The same counts for current heimdal snapshot.



#ifndef _GLOB_H
#define _GLOB_H 1

#ifdef  __cplusplus
extern "C" {
#endif

#undef  __ptr_t
#if defined __cplusplus || (defined __STDC__ && __STDC__) || defined
WINDOWS32
# if !defined __GLIBC__ || !defined __P
#  undef __P
#  undef __PMT
#  define __P(protos)   protos
#  define __PMT(protos) protos
#  if !defined __GNUC__ || __GNUC__ < 2
#   undef __const
#   define __const const
#  endif
# endif
# define __ptr_t        void *
#else /* Not C++ or ANSI C.  */
# undef __P
# undef __PMT
# define __P(protos)    ()
# define __PMT(protos)  ()
# undef __const
# define __const
# define __ptr_t        char *
#endif /* C++ or ANSI C.  */

/* We need `size_t' for the following definitions.  */
#ifndef __size_t
# if defined __GNUC__ && __GNUC__ >= 2
typedef __SIZE_TYPE__ __size_t;
#  ifdef _XOPEN_SOURCE
typedef __SIZE_TYPE__ size_t;
#  endif
# else
/* This is a guess.  */
typedef unsigned long int __size_t;
# endif
#else
/* The GNU CC stddef.h version defines __size_t as empty.  We need a real
    definition.  */
# undef __size_t
# define __size_t size_t
#endif

/* Bits set in the FLAGS argument to `glob'.  */
#define GLOB_ERR        (1 << 0)/* Return on read errors.  */
#define GLOB_MARK       (1 << 1)/* Append a slash to each name.  */
#define GLOB_NOSORT     (1 << 2)/* Don't sort the names.  */
#define GLOB_DOOFFS     (1 << 3)/* Insert PGLOB->gl_offs NULLs.  */
#define GLOB_NOCHECK    (1 << 4)/* If nothing matches, return the pattern.
*/
#define GLOB_APPEND     (1 << 5)/* Append to results of a previous call.
*/
#define GLOB_NOESCAPE   (1 << 6)/* Backslashes don't quote metacharacters.
*/
#define GLOB_PERIOD     (1 << 7)/* Leading `.' can be matched by
metachars.  */

#if (!defined _POSIX_C_SOURCE || _POSIX_C_SOURCE < 2 || defined
_BSD_SOURCE \
      || defined _GNU_SOURCE)
# define GLOB_MAGCHAR    (1 << 8)/* Set in gl_flags if any metachars seen.
*/
# define GLOB_ALTDIRFUNC (1 << 9)/* Use gl_opendir et al functions.  */
# define GLOB_BRACE      (1 << 10)/* Expand "{a,b}" to "a" "b".  */
# define GLOB_NOMAGIC    (1 << 11)/* If no magic chars, return the pattern.  */
# define GLOB_TILDE      (1 << 12)/* Expand ~user and ~ to home directories. */
# define GLOB_ONLYDIR    (1 << 13)/* Match only directories.  */
# define GLOB_TILDE_CHECK (1 << 14)/* Like GLOB_TILDE but return an error
                                       if the user name is not available.
*/
# define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
                          GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND|     \
                          GLOB_PERIOD|GLOB_ALTDIRFUNC|GLOB_BRACE|     \

GLOB_NOMAGIC|GLOB_TILDE|GLOB_ONLYDIR|GLOB_TILDE_CHECK)
#else
# define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
                          GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND|     \
                          GLOB_PERIOD)
#endif

/* Error returns from `glob'.  */
#define GLOB_NOSPACE    1       /* Ran out of memory.  */
#define GLOB_ABORTED    2       /* Read error.  */
#define GLOB_NOMATCH    3       /* No matches found.  */
#define GLOB_NOSYS      4       /* Not implemented.  */
#ifdef _GNU_SOURCE
/* Previous versions of this file defined GLOB_ABEND instead of
    GLOB_ABORTED.  Provide a compatibility definition here.  */
# define GLOB_ABEND GLOB_ABORTED
#endif

/* Structure describing a globbing run.  */
#if !defined _AMIGA && !defined VMS /* Buggy compiler.   */
# ifdef _GNU_SOURCE
struct stat;
# endif
#endif
typedef struct
   {
     __size_t gl_pathc;          /* Count of paths matched by the pattern.
*/
     char **gl_pathv;            /* List of matched pathnames.  */
     __size_t gl_offs;           /* Slots to reserve in `gl_pathv'.  */
     int gl_flags;               /* Set to FLAGS, maybe | GLOB_MAGCHAR.  */

     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
        are used instead of the normal file access functions.  */
     void (*gl_closedir) __PMT ((void *));
#ifdef _GNU_SOURCE
     struct dirent *(*gl_readdir) __PMT ((void *));
#else
     void *(*gl_readdir) __PMT ((void *));
#endif
     __ptr_t (*gl_opendir) __PMT ((__const char *));
#ifdef _GNU_SOURCE
     int (*gl_lstat) __PMT ((__const char *__restrict,
                             struct stat *__restrict));
     int (*gl_stat) __PMT ((__const char *__restrict, struct stat *__restrict));
#else
     int (*gl_lstat) __PMT ((__const char *__restrict, void *__restrict));
     int (*gl_stat) __PMT ((__const char *__restrict, void *__restrict));
#endif
   } glob_t;

#ifdef _LARGEFILE64_SOURCE
# ifdef _GNU_SOURCE
struct stat64;
# endif
typedef struct
   {
     __size_t gl_pathc;
     char **gl_pathv;
     __size_t gl_offs;
     int gl_flags;

     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
        are used instead of the normal file access functions.  */
     void (*gl_closedir) __PMT ((void *));
# ifdef _GNU_SOURCE
     struct dirent64 *(*gl_readdir) __PMT ((void *));
# else
     void *(*gl_readdir) __PMT ((void *));
# endif
     __ptr_t (*gl_opendir) __PMT ((__const char *));
# ifdef _GNU_SOURCE
     int (*gl_lstat) __PMT ((__const char *__restrict,
                             struct stat64 *__restrict));
     int (*gl_stat) __PMT ((__const char *__restrict,
                            struct stat64 *__restrict));
# else
     int (*gl_lstat) __PMT ((__const char *__restrict, void *__restrict));
     int (*gl_stat) __PMT ((__const char *__restrict, void *__restrict));
# endif
   } glob64_t;
#endif

#if _FILE_OFFSET_BITS == 64 && __GNUC__ < 2
# define glob glob64
# define globfree globfree64
#endif

/* Do glob searching for PATTERN, placing results in PGLOB.
    The bits defined above may be set in FLAGS.
    If a directory cannot be opened or read and ERRFUNC is not nil,
    it is called with the pathname that caused the error, and the
    `errno' value from the failing call; if it returns non-zero
    `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
    If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
    Otherwise, `glob' returns zero.  */
#if _FILE_OFFSET_BITS != 64 || __GNUC__ < 2
extern int glob __P ((__const char *__restrict __pattern, int __flags,
                       int (*__errfunc) (__const char *, int),
                       glob_t *__restrict __pglob));

/* Free storage allocated in PGLOB by a previous `glob' call.  */
extern void globfree __P ((glob_t *__pglob));
#else
extern int glob __P ((__const char *__restrict __pattern, int __flags,
                       int (*__errfunc) (__const char *, int),
                       glob_t *__restrict __pglob)) __asm__ ("glob64");

extern void globfree __P ((glob_t *__pglob)) __asm__ ("globfree64");
#endif

#ifdef _LARGEFILE64_SOURCE
extern int glob64 __P ((__const char *__restrict __pattern, int __flags,
                         int (*__errfunc) (__const char *, int),
                         glob64_t *__restrict __pglob));

extern void globfree64 __P ((glob64_t *__pglob));
#endif


#ifdef _GNU_SOURCE
/* Return nonzero if PATTERN contains any metacharacters.
    Metacharacters can be quoted with backslashes if QUOTE is nonzero.

    This function is not part of the interface specified by POSIX.2
    but several programs want to use it.  */
extern int glob_pattern_p __P ((__const char *__pattern, int __quote));
#endif

#ifdef  __cplusplus
}
#endif

#endif /* glob.h  */



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