| 1 | /* |
| 2 | * winutils.c: miscellaneous Windows utilities for GUI apps |
| 3 | */ |
| 4 | |
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <ctype.h> |
| 8 | |
| 9 | #include "putty.h" |
| 10 | #include "misc.h" |
| 11 | |
| 12 | #ifdef TESTMODE |
| 13 | /* Definitions to allow this module to be compiled standalone for testing |
| 14 | * split_into_argv(). */ |
| 15 | #define smalloc malloc |
| 16 | #define srealloc realloc |
| 17 | #define sfree free |
| 18 | #endif |
| 19 | |
| 20 | /* |
| 21 | * GetOpenFileName/GetSaveFileName tend to muck around with the process' |
| 22 | * working directory on at least some versions of Windows. |
| 23 | * Here's a wrapper that gives more control over this, and hides a little |
| 24 | * bit of other grottiness. |
| 25 | */ |
| 26 | |
| 27 | struct filereq_tag { |
| 28 | TCHAR cwd[MAX_PATH]; |
| 29 | }; |
| 30 | |
| 31 | /* |
| 32 | * `of' is expected to be initialised with most interesting fields, but |
| 33 | * this function does some administrivia. (assume `of' was memset to 0) |
| 34 | * save==1 -> GetSaveFileName; save==0 -> GetOpenFileName |
| 35 | * `state' is optional. |
| 36 | */ |
| 37 | BOOL request_file(filereq *state, OPENFILENAME *of, int preserve, int save) |
| 38 | { |
| 39 | TCHAR cwd[MAX_PATH]; /* process CWD */ |
| 40 | BOOL ret; |
| 41 | |
| 42 | /* Get process CWD */ |
| 43 | if (preserve) { |
| 44 | DWORD r = GetCurrentDirectory(lenof(cwd), cwd); |
| 45 | if (r == 0 || r >= lenof(cwd)) |
| 46 | /* Didn't work, oh well. Stop trying to be clever. */ |
| 47 | preserve = 0; |
| 48 | } |
| 49 | |
| 50 | /* Open the file requester, maybe setting lpstrInitialDir */ |
| 51 | { |
| 52 | #ifdef OPENFILENAME_SIZE_VERSION_400 |
| 53 | of->lStructSize = OPENFILENAME_SIZE_VERSION_400; |
| 54 | #else |
| 55 | of->lStructSize = sizeof(*of); |
| 56 | #endif |
| 57 | of->lpstrInitialDir = (state && state->cwd[0]) ? state->cwd : NULL; |
| 58 | /* Actually put up the requester. */ |
| 59 | ret = save ? GetSaveFileName(of) : GetOpenFileName(of); |
| 60 | } |
| 61 | |
| 62 | /* Get CWD left by requester */ |
| 63 | if (state) { |
| 64 | DWORD r = GetCurrentDirectory(lenof(state->cwd), state->cwd); |
| 65 | if (r == 0 || r >= lenof(state->cwd)) |
| 66 | /* Didn't work, oh well. */ |
| 67 | state->cwd[0] = '\0'; |
| 68 | } |
| 69 | |
| 70 | /* Restore process CWD */ |
| 71 | if (preserve) |
| 72 | /* If it fails, there's not much we can do. */ |
| 73 | (void) SetCurrentDirectory(cwd); |
| 74 | |
| 75 | return ret; |
| 76 | } |
| 77 | |
| 78 | filereq *filereq_new(void) |
| 79 | { |
| 80 | filereq *ret = snew(filereq); |
| 81 | ret->cwd[0] = '\0'; |
| 82 | return ret; |
| 83 | } |
| 84 | |
| 85 | void filereq_free(filereq *state) |
| 86 | { |
| 87 | sfree(state); |
| 88 | } |
| 89 | |
| 90 | /* |
| 91 | * Message box with optional context help. |
| 92 | */ |
| 93 | |
| 94 | /* Callback function to launch context help. */ |
| 95 | static VOID CALLBACK message_box_help_callback(LPHELPINFO lpHelpInfo) |
| 96 | { |
| 97 | char *context = NULL; |
| 98 | #define CHECK_CTX(name) \ |
| 99 | do { \ |
| 100 | if (lpHelpInfo->dwContextId == WINHELP_CTXID_ ## name) \ |
| 101 | context = WINHELP_CTX_ ## name; \ |
| 102 | } while (0) |
| 103 | CHECK_CTX(errors_hostkey_absent); |
| 104 | CHECK_CTX(errors_hostkey_changed); |
| 105 | CHECK_CTX(errors_cantloadkey); |
| 106 | CHECK_CTX(option_cleanup); |
| 107 | CHECK_CTX(pgp_fingerprints); |
| 108 | #undef CHECK_CTX |
| 109 | if (context) |
| 110 | launch_help(hwnd, context); |
| 111 | } |
| 112 | |
| 113 | int message_box(LPCTSTR text, LPCTSTR caption, DWORD style, DWORD helpctxid) |
| 114 | { |
| 115 | MSGBOXPARAMS mbox; |
| 116 | |
| 117 | /* |
| 118 | * We use MessageBoxIndirect() because it allows us to specify a |
| 119 | * callback function for the Help button. |
| 120 | */ |
| 121 | mbox.cbSize = sizeof(mbox); |
| 122 | /* Assumes the globals `hinst' and `hwnd' have sensible values. */ |
| 123 | mbox.hInstance = hinst; |
| 124 | mbox.hwndOwner = hwnd; |
| 125 | mbox.lpfnMsgBoxCallback = &message_box_help_callback; |
| 126 | mbox.dwLanguageId = LANG_NEUTRAL; |
| 127 | mbox.lpszText = text; |
| 128 | mbox.lpszCaption = caption; |
| 129 | mbox.dwContextHelpId = helpctxid; |
| 130 | mbox.dwStyle = style; |
| 131 | if (helpctxid != 0 && has_help()) mbox.dwStyle |= MB_HELP; |
| 132 | return MessageBoxIndirect(&mbox); |
| 133 | } |
| 134 | |
| 135 | /* |
| 136 | * Display the fingerprints of the PGP Master Keys to the user. |
| 137 | */ |
| 138 | void pgp_fingerprints(void) |
| 139 | { |
| 140 | message_box("These are the fingerprints of the PuTTY PGP Master Keys. They can\n" |
| 141 | "be used to establish a trust path from this executable to another\n" |
| 142 | "one. See the manual for more information.\n" |
| 143 | "(Note: these fingerprints have nothing to do with SSH!)\n" |
| 144 | "\n" |
| 145 | "PuTTY Master Key (RSA), 1024-bit:\n" |
| 146 | " " PGP_RSA_MASTER_KEY_FP "\n" |
| 147 | "PuTTY Master Key (DSA), 1024-bit:\n" |
| 148 | " " PGP_DSA_MASTER_KEY_FP, |
| 149 | "PGP fingerprints", MB_ICONINFORMATION | MB_OK, |
| 150 | HELPCTXID(pgp_fingerprints)); |
| 151 | } |
| 152 | |
| 153 | /* |
| 154 | * Split a complete command line into argc/argv, attempting to do |
| 155 | * it exactly the same way Windows itself would do it (so that |
| 156 | * console utilities, which receive argc and argv from Windows, |
| 157 | * will have their command lines processed in the same way as GUI |
| 158 | * utilities which get a whole command line and must break it |
| 159 | * themselves). |
| 160 | * |
| 161 | * Does not modify the input command line. |
| 162 | * |
| 163 | * The final parameter (argstart) is used to return a second array |
| 164 | * of char * pointers, the same length as argv, each one pointing |
| 165 | * at the start of the corresponding element of argv in the |
| 166 | * original command line. So if you get half way through processing |
| 167 | * your command line in argc/argv form and then decide you want to |
| 168 | * treat the rest as a raw string, you can. If you don't want to, |
| 169 | * `argstart' can be safely left NULL. |
| 170 | */ |
| 171 | void split_into_argv(char *cmdline, int *argc, char ***argv, |
| 172 | char ***argstart) |
| 173 | { |
| 174 | char *p; |
| 175 | char *outputline, *q; |
| 176 | char **outputargv, **outputargstart; |
| 177 | int outputargc; |
| 178 | |
| 179 | /* |
| 180 | * At first glance the rules appeared to be: |
| 181 | * |
| 182 | * - Single quotes are not special characters. |
| 183 | * |
| 184 | * - Double quotes are removed, but within them spaces cease |
| 185 | * to be special. |
| 186 | * |
| 187 | * - Backslashes are _only_ special when a sequence of them |
| 188 | * appear just before a double quote. In this situation, |
| 189 | * they are treated like C backslashes: so \" just gives a |
| 190 | * literal quote, \\" gives a literal backslash and then |
| 191 | * opens or closes a double-quoted segment, \\\" gives a |
| 192 | * literal backslash and then a literal quote, \\\\" gives |
| 193 | * two literal backslashes and then opens/closes a |
| 194 | * double-quoted segment, and so forth. Note that this |
| 195 | * behaviour is identical inside and outside double quotes. |
| 196 | * |
| 197 | * - Two successive double quotes become one literal double |
| 198 | * quote, but only _inside_ a double-quoted segment. |
| 199 | * Outside, they just form an empty double-quoted segment |
| 200 | * (which may cause an empty argument word). |
| 201 | * |
| 202 | * - That only leaves the interesting question of what happens |
| 203 | * when one or more backslashes precedes two or more double |
| 204 | * quotes, starting inside a double-quoted string. And the |
| 205 | * answer to that appears somewhat bizarre. Here I tabulate |
| 206 | * number of backslashes (across the top) against number of |
| 207 | * quotes (down the left), and indicate how many backslashes |
| 208 | * are output, how many quotes are output, and whether a |
| 209 | * quoted segment is open at the end of the sequence: |
| 210 | * |
| 211 | * backslashes |
| 212 | * |
| 213 | * 0 1 2 3 4 |
| 214 | * |
| 215 | * 0 0,0,y | 1,0,y 2,0,y 3,0,y 4,0,y |
| 216 | * --------+----------------------------- |
| 217 | * 1 0,0,n | 0,1,y 1,0,n 1,1,y 2,0,n |
| 218 | * q 2 0,1,n | 0,1,n 1,1,n 1,1,n 2,1,n |
| 219 | * u 3 0,1,y | 0,2,n 1,1,y 1,2,n 2,1,y |
| 220 | * o 4 0,1,n | 0,2,y 1,1,n 1,2,y 2,1,n |
| 221 | * t 5 0,2,n | 0,2,n 1,2,n 1,2,n 2,2,n |
| 222 | * e 6 0,2,y | 0,3,n 1,2,y 1,3,n 2,2,y |
| 223 | * s 7 0,2,n | 0,3,y 1,2,n 1,3,y 2,2,n |
| 224 | * 8 0,3,n | 0,3,n 1,3,n 1,3,n 2,3,n |
| 225 | * 9 0,3,y | 0,4,n 1,3,y 1,4,n 2,3,y |
| 226 | * 10 0,3,n | 0,4,y 1,3,n 1,4,y 2,3,n |
| 227 | * 11 0,4,n | 0,4,n 1,4,n 1,4,n 2,4,n |
| 228 | * |
| 229 | * |
| 230 | * [Test fragment was of the form "a\\\"""b c" d.] |
| 231 | * |
| 232 | * There is very weird mod-3 behaviour going on here in the |
| 233 | * number of quotes, and it even applies when there aren't any |
| 234 | * backslashes! How ghastly. |
| 235 | * |
| 236 | * With a bit of thought, this extremely odd diagram suddenly |
| 237 | * coalesced itself into a coherent, if still ghastly, model of |
| 238 | * how things work: |
| 239 | * |
| 240 | * - As before, backslashes are only special when one or more |
| 241 | * of them appear contiguously before at least one double |
| 242 | * quote. In this situation the backslashes do exactly what |
| 243 | * you'd expect: each one quotes the next thing in front of |
| 244 | * it, so you end up with n/2 literal backslashes (if n is |
| 245 | * even) or (n-1)/2 literal backslashes and a literal quote |
| 246 | * (if n is odd). In the latter case the double quote |
| 247 | * character right after the backslashes is used up. |
| 248 | * |
| 249 | * - After that, any remaining double quotes are processed. A |
| 250 | * string of contiguous unescaped double quotes has a mod-3 |
| 251 | * behaviour: |
| 252 | * |
| 253 | * * inside a quoted segment, a quote ends the segment. |
| 254 | * * _immediately_ after ending a quoted segment, a quote |
| 255 | * simply produces a literal quote. |
| 256 | * * otherwise, outside a quoted segment, a quote begins a |
| 257 | * quoted segment. |
| 258 | * |
| 259 | * So, for example, if we started inside a quoted segment |
| 260 | * then two contiguous quotes would close the segment and |
| 261 | * produce a literal quote; three would close the segment, |
| 262 | * produce a literal quote, and open a new segment. If we |
| 263 | * started outside a quoted segment, then two contiguous |
| 264 | * quotes would open and then close a segment, producing no |
| 265 | * output (but potentially creating a zero-length argument); |
| 266 | * but three quotes would open and close a segment and then |
| 267 | * produce a literal quote. |
| 268 | */ |
| 269 | |
| 270 | /* |
| 271 | * First deal with the simplest of all special cases: if there |
| 272 | * aren't any arguments, return 0,NULL,NULL. |
| 273 | */ |
| 274 | while (*cmdline && isspace(*cmdline)) cmdline++; |
| 275 | if (!*cmdline) { |
| 276 | if (argc) *argc = 0; |
| 277 | if (argv) *argv = NULL; |
| 278 | if (argstart) *argstart = NULL; |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | /* |
| 283 | * This will guaranteeably be big enough; we can realloc it |
| 284 | * down later. |
| 285 | */ |
| 286 | outputline = snewn(1+strlen(cmdline), char); |
| 287 | outputargv = snewn(strlen(cmdline)+1 / 2, char *); |
| 288 | outputargstart = snewn(strlen(cmdline)+1 / 2, char *); |
| 289 | |
| 290 | p = cmdline; q = outputline; outputargc = 0; |
| 291 | |
| 292 | while (*p) { |
| 293 | int quote; |
| 294 | |
| 295 | /* Skip whitespace searching for start of argument. */ |
| 296 | while (*p && isspace(*p)) p++; |
| 297 | if (!*p) break; |
| 298 | |
| 299 | /* We have an argument; start it. */ |
| 300 | outputargv[outputargc] = q; |
| 301 | outputargstart[outputargc] = p; |
| 302 | outputargc++; |
| 303 | quote = 0; |
| 304 | |
| 305 | /* Copy data into the argument until it's finished. */ |
| 306 | while (*p) { |
| 307 | if (!quote && isspace(*p)) |
| 308 | break; /* argument is finished */ |
| 309 | |
| 310 | if (*p == '"' || *p == '\\') { |
| 311 | /* |
| 312 | * We have a sequence of zero or more backslashes |
| 313 | * followed by a sequence of zero or more quotes. |
| 314 | * Count up how many of each, and then deal with |
| 315 | * them as appropriate. |
| 316 | */ |
| 317 | int i, slashes = 0, quotes = 0; |
| 318 | while (*p == '\\') slashes++, p++; |
| 319 | while (*p == '"') quotes++, p++; |
| 320 | |
| 321 | if (!quotes) { |
| 322 | /* |
| 323 | * Special case: if there are no quotes, |
| 324 | * slashes are not special at all, so just copy |
| 325 | * n slashes to the output string. |
| 326 | */ |
| 327 | while (slashes--) *q++ = '\\'; |
| 328 | } else { |
| 329 | /* Slashes annihilate in pairs. */ |
| 330 | while (slashes >= 2) slashes -= 2, *q++ = '\\'; |
| 331 | |
| 332 | /* One remaining slash takes out the first quote. */ |
| 333 | if (slashes) quotes--, *q++ = '"'; |
| 334 | |
| 335 | if (quotes > 0) { |
| 336 | /* Outside a quote segment, a quote starts one. */ |
| 337 | if (!quote) quotes--, quote = 1; |
| 338 | |
| 339 | /* Now we produce (n+1)/3 literal quotes... */ |
| 340 | for (i = 3; i <= quotes+1; i += 3) *q++ = '"'; |
| 341 | |
| 342 | /* ... and end in a quote segment iff 3 divides n. */ |
| 343 | quote = (quotes % 3 == 0); |
| 344 | } |
| 345 | } |
| 346 | } else { |
| 347 | *q++ = *p++; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | /* At the end of an argument, just append a trailing NUL. */ |
| 352 | *q++ = '\0'; |
| 353 | } |
| 354 | |
| 355 | outputargv = sresize(outputargv, outputargc, char *); |
| 356 | outputargstart = sresize(outputargstart, outputargc, char *); |
| 357 | |
| 358 | if (argc) *argc = outputargc; |
| 359 | if (argv) *argv = outputargv; else sfree(outputargv); |
| 360 | if (argstart) *argstart = outputargstart; else sfree(outputargstart); |
| 361 | } |
| 362 | |
| 363 | #ifdef TESTMODE |
| 364 | |
| 365 | const struct argv_test { |
| 366 | const char *cmdline; |
| 367 | const char *argv[10]; |
| 368 | } argv_tests[] = { |
| 369 | /* |
| 370 | * We generate this set of tests by invoking ourself with |
| 371 | * `-generate'. |
| 372 | */ |
| 373 | {"ab c\" d", {"ab", "c d", NULL}}, |
| 374 | {"a\"b c\" d", {"ab c", "d", NULL}}, |
| 375 | {"a\"\"b c\" d", {"ab", "c d", NULL}}, |
| 376 | {"a\"\"\"b c\" d", {"a\"b", "c d", NULL}}, |
| 377 | {"a\"\"\"\"b c\" d", {"a\"b c", "d", NULL}}, |
| 378 | {"a\"\"\"\"\"b c\" d", {"a\"b", "c d", NULL}}, |
| 379 | {"a\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 380 | {"a\"\"\"\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}}, |
| 381 | {"a\"\"\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 382 | {"a\\b c\" d", {"a\\b", "c d", NULL}}, |
| 383 | {"a\\\"b c\" d", {"a\"b", "c d", NULL}}, |
| 384 | {"a\\\"\"b c\" d", {"a\"b c", "d", NULL}}, |
| 385 | {"a\\\"\"\"b c\" d", {"a\"b", "c d", NULL}}, |
| 386 | {"a\\\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 387 | {"a\\\"\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}}, |
| 388 | {"a\\\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 389 | {"a\\\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}}, |
| 390 | {"a\\\"\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b c", "d", NULL}}, |
| 391 | {"a\\\\b c\" d", {"a\\\\b", "c d", NULL}}, |
| 392 | {"a\\\\\"b c\" d", {"a\\b c", "d", NULL}}, |
| 393 | {"a\\\\\"\"b c\" d", {"a\\b", "c d", NULL}}, |
| 394 | {"a\\\\\"\"\"b c\" d", {"a\\\"b", "c d", NULL}}, |
| 395 | {"a\\\\\"\"\"\"b c\" d", {"a\\\"b c", "d", NULL}}, |
| 396 | {"a\\\\\"\"\"\"\"b c\" d", {"a\\\"b", "c d", NULL}}, |
| 397 | {"a\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 398 | {"a\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}}, |
| 399 | {"a\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 400 | {"a\\\\\\b c\" d", {"a\\\\\\b", "c d", NULL}}, |
| 401 | {"a\\\\\\\"b c\" d", {"a\\\"b", "c d", NULL}}, |
| 402 | {"a\\\\\\\"\"b c\" d", {"a\\\"b c", "d", NULL}}, |
| 403 | {"a\\\\\\\"\"\"b c\" d", {"a\\\"b", "c d", NULL}}, |
| 404 | {"a\\\\\\\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 405 | {"a\\\\\\\"\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}}, |
| 406 | {"a\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 407 | {"a\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}}, |
| 408 | {"a\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b c", "d", NULL}}, |
| 409 | {"a\\\\\\\\b c\" d", {"a\\\\\\\\b", "c d", NULL}}, |
| 410 | {"a\\\\\\\\\"b c\" d", {"a\\\\b c", "d", NULL}}, |
| 411 | {"a\\\\\\\\\"\"b c\" d", {"a\\\\b", "c d", NULL}}, |
| 412 | {"a\\\\\\\\\"\"\"b c\" d", {"a\\\\\"b", "c d", NULL}}, |
| 413 | {"a\\\\\\\\\"\"\"\"b c\" d", {"a\\\\\"b c", "d", NULL}}, |
| 414 | {"a\\\\\\\\\"\"\"\"\"b c\" d", {"a\\\\\"b", "c d", NULL}}, |
| 415 | {"a\\\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}}, |
| 416 | {"a\\\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b c", "d", NULL}}, |
| 417 | {"a\\\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}}, |
| 418 | {"\"ab c\" d", {"ab c", "d", NULL}}, |
| 419 | {"\"a\"b c\" d", {"ab", "c d", NULL}}, |
| 420 | {"\"a\"\"b c\" d", {"a\"b", "c d", NULL}}, |
| 421 | {"\"a\"\"\"b c\" d", {"a\"b c", "d", NULL}}, |
| 422 | {"\"a\"\"\"\"b c\" d", {"a\"b", "c d", NULL}}, |
| 423 | {"\"a\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 424 | {"\"a\"\"\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}}, |
| 425 | {"\"a\"\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 426 | {"\"a\"\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}}, |
| 427 | {"\"a\\b c\" d", {"a\\b c", "d", NULL}}, |
| 428 | {"\"a\\\"b c\" d", {"a\"b c", "d", NULL}}, |
| 429 | {"\"a\\\"\"b c\" d", {"a\"b", "c d", NULL}}, |
| 430 | {"\"a\\\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 431 | {"\"a\\\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}}, |
| 432 | {"\"a\\\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}}, |
| 433 | {"\"a\\\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}}, |
| 434 | {"\"a\\\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b c", "d", NULL}}, |
| 435 | {"\"a\\\"\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}}, |
| 436 | {"\"a\\\\b c\" d", {"a\\\\b c", "d", NULL}}, |
| 437 | {"\"a\\\\\"b c\" d", {"a\\b", "c d", NULL}}, |
| 438 | {"\"a\\\\\"\"b c\" d", {"a\\\"b", "c d", NULL}}, |
| 439 | {"\"a\\\\\"\"\"b c\" d", {"a\\\"b c", "d", NULL}}, |
| 440 | {"\"a\\\\\"\"\"\"b c\" d", {"a\\\"b", "c d", NULL}}, |
| 441 | {"\"a\\\\\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 442 | {"\"a\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}}, |
| 443 | {"\"a\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 444 | {"\"a\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}}, |
| 445 | {"\"a\\\\\\b c\" d", {"a\\\\\\b c", "d", NULL}}, |
| 446 | {"\"a\\\\\\\"b c\" d", {"a\\\"b c", "d", NULL}}, |
| 447 | {"\"a\\\\\\\"\"b c\" d", {"a\\\"b", "c d", NULL}}, |
| 448 | {"\"a\\\\\\\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 449 | {"\"a\\\\\\\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}}, |
| 450 | {"\"a\\\\\\\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}}, |
| 451 | {"\"a\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}}, |
| 452 | {"\"a\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b c", "d", NULL}}, |
| 453 | {"\"a\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}}, |
| 454 | {"\"a\\\\\\\\b c\" d", {"a\\\\\\\\b c", "d", NULL}}, |
| 455 | {"\"a\\\\\\\\\"b c\" d", {"a\\\\b", "c d", NULL}}, |
| 456 | {"\"a\\\\\\\\\"\"b c\" d", {"a\\\\\"b", "c d", NULL}}, |
| 457 | {"\"a\\\\\\\\\"\"\"b c\" d", {"a\\\\\"b c", "d", NULL}}, |
| 458 | {"\"a\\\\\\\\\"\"\"\"b c\" d", {"a\\\\\"b", "c d", NULL}}, |
| 459 | {"\"a\\\\\\\\\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}}, |
| 460 | {"\"a\\\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b c", "d", NULL}}, |
| 461 | {"\"a\\\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}}, |
| 462 | {"\"a\\\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"\"b", "c d", NULL}}, |
| 463 | }; |
| 464 | |
| 465 | int main(int argc, char **argv) |
| 466 | { |
| 467 | int i, j; |
| 468 | |
| 469 | if (argc > 1) { |
| 470 | /* |
| 471 | * Generation of tests. |
| 472 | * |
| 473 | * Given `-splat <args>', we print out a C-style |
| 474 | * representation of each argument (in the form "a", "b", |
| 475 | * NULL), backslash-escaping each backslash and double |
| 476 | * quote. |
| 477 | * |
| 478 | * Given `-split <string>', we first doctor `string' by |
| 479 | * turning forward slashes into backslashes, single quotes |
| 480 | * into double quotes and underscores into spaces; and then |
| 481 | * we feed the resulting string to ourself with `-splat'. |
| 482 | * |
| 483 | * Given `-generate', we concoct a variety of fun test |
| 484 | * cases, encode them in quote-safe form (mapping \, " and |
| 485 | * space to /, ' and _ respectively) and feed each one to |
| 486 | * `-split'. |
| 487 | */ |
| 488 | if (!strcmp(argv[1], "-splat")) { |
| 489 | int i; |
| 490 | char *p; |
| 491 | for (i = 2; i < argc; i++) { |
| 492 | putchar('"'); |
| 493 | for (p = argv[i]; *p; p++) { |
| 494 | if (*p == '\\' || *p == '"') |
| 495 | putchar('\\'); |
| 496 | putchar(*p); |
| 497 | } |
| 498 | printf("\", "); |
| 499 | } |
| 500 | printf("NULL"); |
| 501 | return 0; |
| 502 | } |
| 503 | |
| 504 | if (!strcmp(argv[1], "-split") && argc > 2) { |
| 505 | char *str = malloc(20 + strlen(argv[0]) + strlen(argv[2])); |
| 506 | char *p, *q; |
| 507 | |
| 508 | q = str + sprintf(str, "%s -splat ", argv[0]); |
| 509 | printf(" {\""); |
| 510 | for (p = argv[2]; *p; p++, q++) { |
| 511 | switch (*p) { |
| 512 | case '/': printf("\\\\"); *q = '\\'; break; |
| 513 | case '\'': printf("\\\""); *q = '"'; break; |
| 514 | case '_': printf(" "); *q = ' '; break; |
| 515 | default: putchar(*p); *q = *p; break; |
| 516 | } |
| 517 | } |
| 518 | *p = '\0'; |
| 519 | printf("\", {"); |
| 520 | fflush(stdout); |
| 521 | |
| 522 | system(str); |
| 523 | |
| 524 | printf("}},\n"); |
| 525 | |
| 526 | return 0; |
| 527 | } |
| 528 | |
| 529 | if (!strcmp(argv[1], "-generate")) { |
| 530 | char *teststr, *p; |
| 531 | int i, initialquote, backslashes, quotes; |
| 532 | |
| 533 | teststr = malloc(200 + strlen(argv[0])); |
| 534 | |
| 535 | for (initialquote = 0; initialquote <= 1; initialquote++) { |
| 536 | for (backslashes = 0; backslashes < 5; backslashes++) { |
| 537 | for (quotes = 0; quotes < 9; quotes++) { |
| 538 | p = teststr + sprintf(teststr, "%s -split ", argv[0]); |
| 539 | if (initialquote) *p++ = '\''; |
| 540 | *p++ = 'a'; |
| 541 | for (i = 0; i < backslashes; i++) *p++ = '/'; |
| 542 | for (i = 0; i < quotes; i++) *p++ = '\''; |
| 543 | *p++ = 'b'; |
| 544 | *p++ = '_'; |
| 545 | *p++ = 'c'; |
| 546 | *p++ = '\''; |
| 547 | *p++ = '_'; |
| 548 | *p++ = 'd'; |
| 549 | *p = '\0'; |
| 550 | |
| 551 | system(teststr); |
| 552 | } |
| 553 | } |
| 554 | } |
| 555 | return 0; |
| 556 | } |
| 557 | |
| 558 | fprintf(stderr, "unrecognised option: \"%s\"\n", argv[1]); |
| 559 | return 1; |
| 560 | } |
| 561 | |
| 562 | /* |
| 563 | * If we get here, we were invoked with no arguments, so just |
| 564 | * run the tests. |
| 565 | */ |
| 566 | |
| 567 | for (i = 0; i < lenof(argv_tests); i++) { |
| 568 | int ac; |
| 569 | char **av; |
| 570 | |
| 571 | split_into_argv(argv_tests[i].cmdline, &ac, &av); |
| 572 | |
| 573 | for (j = 0; j < ac && argv_tests[i].argv[j]; j++) { |
| 574 | if (strcmp(av[j], argv_tests[i].argv[j])) { |
| 575 | printf("failed test %d (|%s|) arg %d: |%s| should be |%s|\n", |
| 576 | i, argv_tests[i].cmdline, |
| 577 | j, av[j], argv_tests[i].argv[j]); |
| 578 | } |
| 579 | #ifdef VERBOSE |
| 580 | else { |
| 581 | printf("test %d (|%s|) arg %d: |%s| == |%s|\n", |
| 582 | i, argv_tests[i].cmdline, |
| 583 | j, av[j], argv_tests[i].argv[j]); |
| 584 | } |
| 585 | #endif |
| 586 | } |
| 587 | if (j < ac) |
| 588 | printf("failed test %d (|%s|): %d args returned, should be %d\n", |
| 589 | i, argv_tests[i].cmdline, ac, j); |
| 590 | if (argv_tests[i].argv[j]) |
| 591 | printf("failed test %d (|%s|): %d args returned, should be more\n", |
| 592 | i, argv_tests[i].cmdline, ac); |
| 593 | } |
| 594 | |
| 595 | return 0; |
| 596 | } |
| 597 | |
| 598 | #endif |