src/src/dummies.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2009 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* This file is not part of the main Exim code. There are little bits of test
   9 code for some of Exim's modules, and when they are used, the module they are
  10 testing may call other main Exim functions that are not available and/or
  11 should not be used in a test. The classic case is log_write(). This module
  12 contains dummy versions of such functions - well not really dummies, more like
  13 alternates. */
  14
  15 #include <stdarg.h>
  16 #include <stdio.h>
  17 #include <errno.h>
  18 #include <string.h>
  19
  20 /* We don't have the full Exim headers dragged in, but this function
  21 is used for debugging output. */
  22
  23 extern int  string_vformat(char *, int, char *, va_list);
  24
  25
  26 /*************************************************
  27 *         Handle calls to write the log          *
  28 *************************************************/
  29
  30 /* The message gets written to stderr when log_write() is called from a
  31 utility. The message always gets '\n' added on the end of it.
  32
  33 Arguments:
  34   selector  not relevant when running a utility
  35   flags     not relevant when running a utility
  36   format    a printf() format
  37   ...       arguments for format
  38
  39 Returns:    nothing
  40 */
  41
  42 void
  43 log_write(unsigned int selector, int flags, char *format, ...)
  44 {
  45 va_list ap;
  46 va_start(ap, format);
  47 vfprintf(stderr, format, ap);
  48 fprintf(stderr, "\n");
  49 va_end(ap);
  50 selector = selector;     /* Keep picky compilers happy */
  51 flags = flags;
  52 }
  53
  54
  55 /*************************************************
  56 *      Handle calls to print debug output        *
  57 *************************************************/
  58
  59 /* The message just gets written to stderr
  60
  61 Arguments:
  62   format    a printf() format
  63   ...       arguments for format
  64
  65 Returns:    nothing
  66 */
  67
  68 void
  69 debug_printf(char *format, ...)
  70 {
  71 va_list ap;
  72 char buffer[1024];
  73
  74 va_start(ap, format);
  75
  76 if (!string_vformat(buffer, sizeof(buffer), format, ap))
  77   {
  78   char *s = "**** debug string overflowed buffer ****\n";
  79   char *p = buffer + (int)strlen(buffer);
  80   int maxlen = sizeof(buffer) - (int)strlen(s) - 3;
  81   if (p > buffer + maxlen) p = buffer + maxlen;
  82   if (p > buffer && p[-1] != '\n') *p++ = '\n';
  83   strcpy(p, s);
  84   }
  85
  86 fprintf(stderr, "%s", buffer);
  87 fflush(stderr);
  88 va_end(ap);
  89 }
  90
  91
  92
  93 /*************************************************
  94 *              SIGALRM handler                   *
  95 *************************************************/
  96
  97 extern int sigalrm_seen;
  98
  99 void
 100 sigalrm_handler(int sig)
 101 {
 102 sig = sig;            /* Keep picky compilers happy */
 103 sigalrm_seen = 1;
 104 }
 105
 106
 107
 108 /*************************************************
 109 *              Complete Dummies                  *
 110 *************************************************/
 111
 112 int
 113 header_checkname(void *h, char *name, int len)
 114 {
 115 h = h;            /* Keep picky compilers happy */
 116 name = name;
 117 len = len;
 118 return 0;
 119 }
 120
 121 void
 122 directory_make(char *parent, char *name, int mode, int panic)
 123 {
 124 parent = parent;  /* Keep picky compilers happy */
 125 name = name;
 126 mode = mode;
 127 panic = panic;
 128 }
 129
 130 void
 131 host_build_sender_fullhost(void) { }
 132
 133 /* This one isn't needed for test_host */
 134
 135 #ifndef TEST_HOST
 136 char *
 137 host_ntoa(int type, const void *arg, char *buffer, int *portptr)
 138 {
 139 type = type;      /* Keep picky compilers happy */
 140 arg = arg;
 141 buffer = buffer;
 142 portptr = portptr;
 143 return NULL;
 144 }
 145 #endif
 146
 147
 148 /* End of dummies.c */