test/src/loaded.c

   1 /* This is a test function for dynamic loading in Exim expansions. It uses the
   2 number of arguments to control the result. */
   3
   4 /* These lines are taken from local_scan.h in the Exim source: */
   5
   6 /* ========================================================================== */
   7 /* Return codes from the support functions lss_match_xxx(). These are also the
   8 codes that dynamically-loaded ${dlfunc functions must return. */
   9
  10 #define  OK            0          /* Successful match */
  11 #define  DEFER         1          /* Defer - some problem */
  12 #define  FAIL          2          /* Matching failed */
  13 #define  ERROR         3          /* Internal or config error */
  14
  15 /* Extra return code for ${dlfunc functions */
  16
  17 #define  FAIL_FORCED   4          /* "Forced" failure */
  18 /* ========================================================================== */
  19
  20
  21 int dltest(unsigned char **yield, int argc, unsigned char *argv[])
  22 {
  23 switch (argc)
  24   {
  25   case 0:
  26   return ERROR;
  27
  28   case 1:
  29   *yield = argv[0];
  30   return OK;
  31
  32   case 2:
  33   *yield = (unsigned char *)"yield FAIL_FORCED";
  34   return FAIL_FORCED;
  35
  36   default:
  37   *yield = (unsigned char *)"yield FAIL";
  38   return FAIL;
  39   }
  40 }