| 1 | /************************************************* |
| 2 | * Exim monitor * |
| 3 | *************************************************/ |
| 4 | |
| 5 | /* Copyright (c) University of Cambridge 1995 - 2009 */ |
| 6 | /* See the file NOTICE for conditions of use and distribution. */ |
| 7 | |
| 8 | /* This module contains code to initialize things from the |
| 9 | environment and the arguments. */ |
| 10 | |
| 11 | |
| 12 | #include "em_hdr.h" |
| 13 | |
| 14 | |
| 15 | |
| 16 | /************************************************* |
| 17 | * Decode stripchart config * |
| 18 | *************************************************/ |
| 19 | |
| 20 | /* First determine how many are requested, then compile the |
| 21 | regular expressions and save the title strings. Note that |
| 22 | stripchart_number is initialized to 1 or 2 to count the always- |
| 23 | present queue stripchart, and the optional size-monitoring |
| 24 | stripchart. */ |
| 25 | |
| 26 | static void decode_stripchart_config(uschar *s) |
| 27 | { |
| 28 | int i; |
| 29 | |
| 30 | /* Loop: first time just counts, second time does the |
| 31 | work. */ |
| 32 | |
| 33 | for (i = 0; i <= 1; i++) |
| 34 | |
| 35 | { |
| 36 | int first = 1; |
| 37 | int count = 0; |
| 38 | uschar *p = s; |
| 39 | |
| 40 | if (*p == '/') p++; /* allow optional / at start */ |
| 41 | |
| 42 | /* This loops for all the substrings, using the first flag |
| 43 | to determine whether each is the first or second of the pairs. */ |
| 44 | |
| 45 | while (*p) |
| 46 | { |
| 47 | uschar *pp; |
| 48 | /* Handle continuations */ |
| 49 | if (*p == '\n') |
| 50 | { |
| 51 | while (*(++p) == ' ' || *p == '\t'); |
| 52 | if (*p == '/') p++; |
| 53 | } |
| 54 | |
| 55 | /* Find the end of the string and count if first string */ |
| 56 | |
| 57 | pp = p; |
| 58 | while (*p && *p != '/') p++; |
| 59 | if (first) count++; |
| 60 | |
| 61 | /* Take action on the second time round. */ |
| 62 | |
| 63 | if (i != 0) |
| 64 | { |
| 65 | uschar buffer[256]; |
| 66 | int indx = count + stripchart_varstart - 1; |
| 67 | Ustrncpy(buffer, pp, p-pp); |
| 68 | buffer[p-pp] = 0; |
| 69 | if (first) |
| 70 | { |
| 71 | int offset; |
| 72 | const uschar *error; |
| 73 | stripchart_regex[indx] = pcre_compile(CS buffer, PCRE_COPT, |
| 74 | (const char **)&error, &offset, NULL); |
| 75 | if (stripchart_regex[indx] == NULL) |
| 76 | { |
| 77 | printf("regular expression error: %s at offset %d " |
| 78 | "while compiling %s\n", error, offset, buffer); |
| 79 | exit(99); |
| 80 | } |
| 81 | } |
| 82 | else stripchart_title[indx] = string_copy(buffer); |
| 83 | } |
| 84 | |
| 85 | /* Advance past the delimiter and flip the first/second flag */ |
| 86 | |
| 87 | p++; |
| 88 | first = !first; |
| 89 | } |
| 90 | |
| 91 | /* On the first pass, we now know the number of stripcharts. Get |
| 92 | store for holding the pointers to the regular expressions and |
| 93 | title strings. */ |
| 94 | |
| 95 | if (i == 0) |
| 96 | { |
| 97 | stripchart_number += count; |
| 98 | stripchart_regex = (pcre **)store_malloc(stripchart_number * sizeof(pcre *)); |
| 99 | stripchart_title = (uschar **)store_malloc(stripchart_number * sizeof(uschar *)); |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | |
| 105 | /************************************************* |
| 106 | * Initialize * |
| 107 | *************************************************/ |
| 108 | |
| 109 | void init(int argc, uschar **argv) |
| 110 | { |
| 111 | int x; |
| 112 | int erroroffset; |
| 113 | uschar *s; |
| 114 | const uschar *error; |
| 115 | |
| 116 | argc = argc; /* These are currently unused. */ |
| 117 | argv = argv; |
| 118 | |
| 119 | /* Deal with simple values in the environment. */ |
| 120 | |
| 121 | s = US getenv("ACTION_OUTPUT"); |
| 122 | if (s != NULL) |
| 123 | { |
| 124 | if (Ustrcmp(s, "no") == 0) action_output = FALSE; |
| 125 | if (Ustrcmp(s, "yes") == 0) action_output = TRUE; |
| 126 | } |
| 127 | |
| 128 | s = US getenv("ACTION_QUEUE_UPDATE"); |
| 129 | if (s != NULL) |
| 130 | { |
| 131 | if (Ustrcmp(s, "no") == 0) action_queue_update = FALSE; |
| 132 | if (Ustrcmp(s, "yes") == 0) action_queue_update = TRUE; |
| 133 | } |
| 134 | |
| 135 | s = US getenv("BODY_MAX"); |
| 136 | if (s != NULL && (x = Uatoi(s)) != 0) body_max = x; |
| 137 | |
| 138 | s = US getenv("EXIM_PATH"); |
| 139 | if (s != NULL) exim_path = string_copy(s); |
| 140 | |
| 141 | s = US getenv("EXIMON_EXIM_CONFIG"); |
| 142 | if (s != NULL) alternate_config = string_copy(s); |
| 143 | |
| 144 | s = US getenv("LOG_BUFFER"); |
| 145 | if (s != NULL) |
| 146 | { |
| 147 | uschar c[1]; |
| 148 | if (sscanf(CS s, "%d%c", &x, c) > 0) |
| 149 | { |
| 150 | if (c[0] == 'K' || c[0] == 'k') x *= 1024; |
| 151 | if (x < 1024) x = 1024; |
| 152 | log_buffer_size = x; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | s = US getenv("LOG_DEPTH"); |
| 157 | if (s != NULL && (x = Uatoi(s)) != 0) log_depth = x; |
| 158 | |
| 159 | s = US getenv("LOG_FILE_NAME"); |
| 160 | if (s != NULL) log_file = string_copy(s); |
| 161 | |
| 162 | s = US getenv("LOG_FONT"); |
| 163 | if (s != NULL) log_font = string_copy(s); |
| 164 | |
| 165 | s = US getenv("LOG_WIDTH"); |
| 166 | if (s != NULL && (x = Uatoi(s)) != 0) log_width = x; |
| 167 | |
| 168 | s = US getenv("MENU_EVENT"); |
| 169 | if (s != NULL) menu_event = string_copy(s); |
| 170 | |
| 171 | s = US getenv("MIN_HEIGHT"); |
| 172 | if (s != NULL && (x = Uatoi(s)) > 0) min_height = x; |
| 173 | |
| 174 | s = US getenv("MIN_WIDTH"); |
| 175 | if (s != NULL && (x = Uatoi(s)) > 0) min_width = x; |
| 176 | |
| 177 | s = US getenv("QUALIFY_DOMAIN"); |
| 178 | if (s != NULL) qualify_domain = string_copy(s); |
| 179 | else qualify_domain = US""; /* Don't want NULL */ |
| 180 | |
| 181 | s = US getenv("QUEUE_DEPTH"); |
| 182 | if (s != NULL && (x = Uatoi(s)) != 0) queue_depth = x; |
| 183 | |
| 184 | s = US getenv("QUEUE_FONT"); |
| 185 | if (s != NULL) queue_font = string_copy(s); |
| 186 | |
| 187 | s = US getenv("QUEUE_INTERVAL"); |
| 188 | if (s != NULL && (x = Uatoi(s)) != 0) queue_update = x; |
| 189 | |
| 190 | s = US getenv("QUEUE_MAX_ADDRESSES"); |
| 191 | if (s != NULL && (x = Uatoi(s)) != 0) queue_max_addresses = x; |
| 192 | |
| 193 | s = US getenv("QUEUE_WIDTH"); |
| 194 | if (s != NULL && (x = Uatoi(s)) != 0) queue_width = x; |
| 195 | |
| 196 | s = US getenv("SPOOL_DIRECTORY"); |
| 197 | if (s != NULL) spool_directory = string_copy(s); |
| 198 | |
| 199 | s = US getenv("START_SMALL"); |
| 200 | if (s != NULL && Ustrcmp(s, "yes") == 0) start_small = 1; |
| 201 | |
| 202 | s = US getenv("TEXT_DEPTH"); |
| 203 | if (s != NULL && (x = Uatoi(s)) != 0) text_depth = x; |
| 204 | |
| 205 | s = US getenv("WINDOW_TITLE"); |
| 206 | if (s != NULL) window_title = string_copy(s); |
| 207 | |
| 208 | /* Deal with stripchart configuration. First see if we are monitoring |
| 209 | the size of a partition, then deal with log stripcharts in a separate |
| 210 | function */ |
| 211 | |
| 212 | s = US getenv("SIZE_STRIPCHART"); |
| 213 | if (s != NULL && *s != 0) |
| 214 | { |
| 215 | stripchart_number++; |
| 216 | stripchart_varstart++; |
| 217 | size_stripchart = string_copy(s); |
| 218 | s = US getenv("SIZE_STRIPCHART_NAME"); |
| 219 | if (s != NULL && *s != 0) size_stripchart_name = string_copy(s); |
| 220 | } |
| 221 | |
| 222 | s = US getenv("LOG_STRIPCHARTS"); |
| 223 | if (s != NULL) decode_stripchart_config(s); |
| 224 | |
| 225 | s = US getenv("STRIPCHART_INTERVAL"); |
| 226 | if (s != NULL && (x = Uatoi(s)) != 0) stripchart_update = x; |
| 227 | |
| 228 | s = US getenv("QUEUE_STRIPCHART_NAME"); |
| 229 | queue_stripchart_name = (s != NULL)? string_copy(s) : US"queue"; |
| 230 | |
| 231 | /* Compile the regex for matching yyyy-mm-dd at the start of a string. */ |
| 232 | |
| 233 | yyyymmdd_regex = pcre_compile("^\\d{4}-\\d\\d-\\d\\d\\s", PCRE_COPT, |
| 234 | (const char **)&error, &erroroffset, NULL); |
| 235 | } |
| 236 | |
| 237 | /* End of em_init.c */ |