| 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 gstring * string_vformat(gstring *, unsigned, const 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 | We use tainted memory to format into just so that we can handle |
| 61 | tainted arguments. |
| 62 | |
| 63 | Arguments: |
| 64 | format a printf() format |
| 65 | ... arguments for format |
| 66 | |
| 67 | Returns: nothing |
| 68 | */ |
| 69 | |
| 70 | void |
| 71 | debug_printf(char *format, ...) |
| 72 | { |
| 73 | va_list ap; |
| 74 | rmark reset_point = store_mark(); |
| 75 | gstring * g = string_get_tainted(1024, TRUE); |
| 76 | |
| 77 | va_start(ap, format); |
| 78 | |
| 79 | if (!string_vformat(g, 0, format, ap)) |
| 80 | { |
| 81 | char * s = "**** debug string overflowed buffer ****\n"; |
| 82 | char * p = CS g->s + g->ptr; |
| 83 | int maxlen = g->size - (int)strlen(s) - 3; |
| 84 | if (p > g->s + maxlen) p = g->s + maxlen; |
| 85 | if (p > g->s && p[-1] != '\n') *p++ = '\n'; |
| 86 | strcpy(p, s); |
| 87 | } |
| 88 | |
| 89 | fprintf(stderr, "%s", string_from_gstring(g)); |
| 90 | fflush(stderr); |
| 91 | store_reset(reset_point); |
| 92 | va_end(ap); |
| 93 | } |
| 94 | |
| 95 | |
| 96 | |
| 97 | /************************************************* |
| 98 | * SIGALRM handler * |
| 99 | *************************************************/ |
| 100 | |
| 101 | extern int sigalrm_seen; |
| 102 | |
| 103 | void |
| 104 | sigalrm_handler(int sig) |
| 105 | { |
| 106 | sig = sig; /* Keep picky compilers happy */ |
| 107 | sigalrm_seen = TRUE; |
| 108 | } |
| 109 | |
| 110 | |
| 111 | |
| 112 | /************************************************* |
| 113 | * Complete Dummies * |
| 114 | *************************************************/ |
| 115 | |
| 116 | int |
| 117 | header_checkname(void *h, char *name, int len) |
| 118 | { |
| 119 | h = h; /* Keep picky compilers happy */ |
| 120 | name = name; |
| 121 | len = len; |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | void |
| 126 | directory_make(char *parent, char *name, int mode, int panic) |
| 127 | { |
| 128 | parent = parent; /* Keep picky compilers happy */ |
| 129 | name = name; |
| 130 | mode = mode; |
| 131 | panic = panic; |
| 132 | } |
| 133 | |
| 134 | void |
| 135 | host_build_sender_fullhost(void) { } |
| 136 | |
| 137 | /* This one isn't needed for test_host */ |
| 138 | |
| 139 | #ifndef TEST_HOST |
| 140 | char * |
| 141 | host_ntoa(int type, const void *arg, char *buffer, int *portptr) |
| 142 | { |
| 143 | type = type; /* Keep picky compilers happy */ |
| 144 | arg = arg; |
| 145 | buffer = buffer; |
| 146 | portptr = portptr; |
| 147 | return NULL; |
| 148 | } |
| 149 | #endif |
| 150 | |
| 151 | |
| 152 | /* End of dummies.c */ |