## include/stubs.h

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## FUNCTIONS

This source file includes following functions.

1. STUB
2. STUB
3. STRUCT_EQUAL
4. dieif
5. strsep

       1 /***************************************
       2   $Revision: 1.6 $
       3
       4   stubs.h - header file with things defined just to provisionally fix the TBDs.
       5
       6   Status: NOT REVUED, TESTED, INCOMPLETE
       7
       8   Design and implementation by: Marek Bukowy
       9
      10   ******************/ /******************
      11   Copyright (c) 1999                              RIPE NCC
      12
      13   All Rights Reserved
      14
      15   Permission to use, copy, modify, and distribute this software and its
      16   documentation for any purpose and without fee is hereby granted,
      17   provided that the above copyright notice appear in all copies and that
      18   both that copyright notice and this permission notice appear in
      19   supporting documentation, and that the name of the author not be
      20   used in advertising or publicity pertaining to distribution of the
      21   software without specific, written prior permission.
      22
      23   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
      24   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
      25   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
      26   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
      27   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
      28   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
      29   ***************************************/
      30
      31 /* stubs: just defined to let the other thing compile. Use #define
      32 NOSTUBS to disable it. */
      33
      34 #ifndef _STUBS_H
      35 #define _STUBS_H
      36
      37 #include <stdlib.h>
      38 #include <stdio.h>
      39 #include <ctype.h>
      40
      41 /* this is to allow user stubs in the code */
      42 /* it will trigger an error when NOSTUBS is set */
      43
      44 #ifndef NOSTUBS
      45 #define STUB(a) do{a;}while(0)
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      46 #else
      47 #define STUB(a) hey_here_is_a_stub_left=%^&*&@@@;
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      48 #endif
      49
      50 /* now these are predefined ones... */
      51
      52 #ifndef NOSTUBS
      53
      54 /* for memcmp and strcmp */
      55 #define CMP_EQUAL 0
      56
      57 /* stub for those compilers (wrrrrrrr....) that can't do (struct != struct) */
      58 #define STRUCT_EQUAL(a,b) (memcmp(&a, &b, sizeof(a)) == CMP_EQUAL)
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      59
      60 /* this prints the filename and line number where it was placed,
      61    and then commits suicide (read: segfault) by writing to address NULL.
      62    This in normal conditions generates a coredump for later analysis.
      63
      64    isdigit() is used to avoid warnings from lint.
      65    do..while is to allow treating this macro as a single instruction
      66    (eg in an if).
      67 */
      68
      69 #define die   do{ \
      70         fprintf(stderr,"died: +%d %s\n",__LINE__, __FILE__);\
      71         *((int*)NULL)=0; \
      72         } while(isdigit('a'))
      73
      74 #define dieif(a) if(a) { \
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      75         fprintf(stderr,"died on "#a" in: +%d %s\n",__LINE__, __FILE__);\
      76         *((int*)NULL)=0; \
      77         }
      78
      79
      80 #define SQL_TBLNAM_MAX 32
      81
      82
      83 /* struct to hold the table name.
      84    Wrapped in a struct to make it behave like a normal object (ref by
      85 value)
      86
      87    in fact, this type should be made engine-dependent.
      88 */
      89
      90 typedef struct {
      91   char val[SQL_TBLNAM_MAX];
      92 } sql_tblnam_t;
      93
      94 /* who knows what key type we will really have in other engines */
      95 typedef long sql_key_t;
      96
      97 #define SQ_NOKEY 0L
      98
      99
     100 #ifdef HAVE_STRSEP
     101 /* good */
     102 #else
     103 #  if defined(HAVE_STRTOK_R) && !defined(HAVE_STRSEP)
     104 /* emulate strsep with strtok_r
     105    by making first arg to strtok_r point to the last
     106
     107 char *
     108 strsep(char **stringp, const char *delim)
     109 {
     110   return strtok_r( *stringp, delim, stringp);
     111 }
     112 */
     113 #define strsep(a,b) strtok_r( *(a), (b), (a) )
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     114
     115 #  else
     116 #  error "must have strsep or strtok_r"
     117 #  endif
     118 #endif
     119
     120
     121 #endif /* NOSTUBS */
     122 #endif /* _STUBS_H */

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