Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1 | /*************************************************************************** |
| 2 | * _ _ ____ _ |
| 3 | * Project ___| | | | _ \| | |
| 4 | * / __| | | | |_) | | |
| 5 | * | (__| |_| | _ <| |___ |
| 6 | * \___|\___/|_| \_\_____| |
| 7 | * |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 8 | * Copyright (C) 1999 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al. |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 9 | * |
| 10 | * This software is licensed as described in the file COPYING, which |
| 11 | * you should have received as part of this distribution. The terms |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 12 | * are also available at https://curl.haxx.se/docs/copyright.html. |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 13 | * |
| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| 15 | * copies of the Software, and permit persons to whom the Software is |
| 16 | * furnished to do so, under the terms of the COPYING file. |
| 17 | * |
| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| 19 | * KIND, either express or implied. |
| 20 | * |
| 21 | * |
| 22 | * Purpose: |
| 23 | * A merge of Bjorn Reese's format() function and Daniel's dsprintf() |
| 24 | * 1.0. A full blooded printf() clone with full support for <num>$ |
| 25 | * everywhere (parameters, widths and precisions) including variabled |
| 26 | * sized parameters (like doubles, long longs, long doubles and even |
| 27 | * void * in 64-bit architectures). |
| 28 | * |
| 29 | * Current restrictions: |
| 30 | * - Max 128 parameters |
| 31 | * - No 'long double' support. |
| 32 | * |
| 33 | * If you ever want truly portable and good *printf() clones, the project that |
| 34 | * took on from here is named 'Trio' and you find more details on the trio web |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 35 | * page at https://daniel.haxx.se/projects/trio/ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 36 | */ |
| 37 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 38 | #include "curl_setup.h" |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 39 | #include <curl/mprintf.h> |
| 40 | |
| 41 | #include "curl_memory.h" |
| 42 | /* The last #include file should be: */ |
| 43 | #include "memdebug.h" |
| 44 | |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 45 | /* |
| 46 | * If SIZEOF_SIZE_T has not been defined, default to the size of long. |
| 47 | */ |
| 48 | |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 49 | #ifdef HAVE_LONGLONG |
| 50 | # define LONG_LONG_TYPE long long |
| 51 | # define HAVE_LONG_LONG_TYPE |
| 52 | #else |
| 53 | # if defined(_MSC_VER) && (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64) |
| 54 | # define LONG_LONG_TYPE __int64 |
| 55 | # define HAVE_LONG_LONG_TYPE |
| 56 | # else |
| 57 | # undef LONG_LONG_TYPE |
| 58 | # undef HAVE_LONG_LONG_TYPE |
| 59 | # endif |
| 60 | #endif |
| 61 | |
| 62 | /* |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 63 | * Non-ANSI integer extensions |
| 64 | */ |
| 65 | |
| 66 | #if (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520)) || \ |
| 67 | (defined(__WATCOMC__) && defined(__386__)) || \ |
| 68 | (defined(__POCC__) && defined(_MSC_VER)) || \ |
| 69 | (defined(_WIN32_WCE)) || \ |
| 70 | (defined(__MINGW32__)) || \ |
| 71 | (defined(_MSC_VER) && (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64)) |
| 72 | # define MP_HAVE_INT_EXTENSIONS |
| 73 | #endif |
| 74 | |
| 75 | /* |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 76 | * Max integer data types that mprintf.c is capable |
| 77 | */ |
| 78 | |
| 79 | #ifdef HAVE_LONG_LONG_TYPE |
| 80 | # define mp_intmax_t LONG_LONG_TYPE |
| 81 | # define mp_uintmax_t unsigned LONG_LONG_TYPE |
| 82 | #else |
| 83 | # define mp_intmax_t long |
| 84 | # define mp_uintmax_t unsigned long |
| 85 | #endif |
| 86 | |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 87 | #define BUFFSIZE 326 /* buffer for long-to-str and float-to-str calcs, should |
| 88 | fit negative DBL_MAX (317 letters) */ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 89 | #define MAX_PARAMETERS 128 /* lame static limit */ |
| 90 | |
| 91 | #ifdef __AMIGA__ |
| 92 | # undef FORMAT_INT |
| 93 | #endif |
| 94 | |
| 95 | /* Lower-case digits. */ |
| 96 | static const char lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz"; |
| 97 | |
| 98 | /* Upper-case digits. */ |
| 99 | static const char upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; |
| 100 | |
| 101 | #define OUTCHAR(x) \ |
| 102 | do{ \ |
| 103 | if(stream((unsigned char)(x), (FILE *)data) != -1) \ |
| 104 | done++; \ |
| 105 | else \ |
| 106 | return done; /* return immediately on failure */ \ |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 107 | } WHILE_FALSE |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 108 | |
| 109 | /* Data type to read from the arglist */ |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 110 | typedef enum { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 111 | FORMAT_UNKNOWN = 0, |
| 112 | FORMAT_STRING, |
| 113 | FORMAT_PTR, |
| 114 | FORMAT_INT, |
| 115 | FORMAT_INTPTR, |
| 116 | FORMAT_LONG, |
| 117 | FORMAT_LONGLONG, |
| 118 | FORMAT_DOUBLE, |
| 119 | FORMAT_LONGDOUBLE, |
| 120 | FORMAT_WIDTH /* For internal use */ |
| 121 | } FormatType; |
| 122 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 123 | /* conversion and display flags */ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 124 | enum { |
| 125 | FLAGS_NEW = 0, |
| 126 | FLAGS_SPACE = 1<<0, |
| 127 | FLAGS_SHOWSIGN = 1<<1, |
| 128 | FLAGS_LEFT = 1<<2, |
| 129 | FLAGS_ALT = 1<<3, |
| 130 | FLAGS_SHORT = 1<<4, |
| 131 | FLAGS_LONG = 1<<5, |
| 132 | FLAGS_LONGLONG = 1<<6, |
| 133 | FLAGS_LONGDOUBLE = 1<<7, |
| 134 | FLAGS_PAD_NIL = 1<<8, |
| 135 | FLAGS_UNSIGNED = 1<<9, |
| 136 | FLAGS_OCTAL = 1<<10, |
| 137 | FLAGS_HEX = 1<<11, |
| 138 | FLAGS_UPPER = 1<<12, |
| 139 | FLAGS_WIDTH = 1<<13, /* '*' or '*<num>$' used */ |
| 140 | FLAGS_WIDTHPARAM = 1<<14, /* width PARAMETER was specified */ |
| 141 | FLAGS_PREC = 1<<15, /* precision was specified */ |
| 142 | FLAGS_PRECPARAM = 1<<16, /* precision PARAMETER was specified */ |
| 143 | FLAGS_CHAR = 1<<17, /* %c story */ |
| 144 | FLAGS_FLOATE = 1<<18, /* %e or %E */ |
| 145 | FLAGS_FLOATG = 1<<19 /* %g or %G */ |
| 146 | }; |
| 147 | |
| 148 | typedef struct { |
| 149 | FormatType type; |
| 150 | int flags; |
| 151 | long width; /* width OR width parameter number */ |
| 152 | long precision; /* precision OR precision parameter number */ |
| 153 | union { |
| 154 | char *str; |
| 155 | void *ptr; |
| 156 | union { |
| 157 | mp_intmax_t as_signed; |
| 158 | mp_uintmax_t as_unsigned; |
| 159 | } num; |
| 160 | double dnum; |
| 161 | } data; |
| 162 | } va_stack_t; |
| 163 | |
| 164 | struct nsprintf { |
| 165 | char *buffer; |
| 166 | size_t length; |
| 167 | size_t max; |
| 168 | }; |
| 169 | |
| 170 | struct asprintf { |
| 171 | char *buffer; /* allocated buffer */ |
| 172 | size_t len; /* length of string */ |
| 173 | size_t alloc; /* length of alloc */ |
| 174 | int fail; /* (!= 0) if an alloc has failed and thus |
| 175 | the output is not the complete data */ |
| 176 | }; |
| 177 | |
| 178 | static long dprintf_DollarString(char *input, char **end) |
| 179 | { |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 180 | int number = 0; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 181 | while(ISDIGIT(*input)) { |
| 182 | number *= 10; |
| 183 | number += *input-'0'; |
| 184 | input++; |
| 185 | } |
| 186 | if(number && ('$'==*input++)) { |
| 187 | *end = input; |
| 188 | return number; |
| 189 | } |
| 190 | return 0; |
| 191 | } |
| 192 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 193 | static bool dprintf_IsQualifierNoDollar(const char *fmt) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 194 | { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 195 | #if defined(MP_HAVE_INT_EXTENSIONS) |
| 196 | if(!strncmp(fmt, "I32", 3) || !strncmp(fmt, "I64", 3)) { |
| 197 | return TRUE; |
| 198 | } |
| 199 | #endif |
| 200 | |
| 201 | switch(*fmt) { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 202 | case '-': case '+': case ' ': case '#': case '.': |
| 203 | case '0': case '1': case '2': case '3': case '4': |
| 204 | case '5': case '6': case '7': case '8': case '9': |
| 205 | case 'h': case 'l': case 'L': case 'z': case 'q': |
| 206 | case '*': case 'O': |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 207 | #if defined(MP_HAVE_INT_EXTENSIONS) |
| 208 | case 'I': |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 209 | #endif |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 210 | return TRUE; |
| 211 | |
| 212 | default: |
| 213 | return FALSE; |
| 214 | } |
| 215 | } |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 216 | |
| 217 | /****************************************************************** |
| 218 | * |
| 219 | * Pass 1: |
| 220 | * Create an index with the type of each parameter entry and its |
| 221 | * value (may vary in size) |
| 222 | * |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 223 | * Returns zero on success. |
| 224 | * |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 225 | ******************************************************************/ |
| 226 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 227 | static int dprintf_Pass1(const char *format, va_stack_t *vto, char **endpos, |
| 228 | va_list arglist) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 229 | { |
| 230 | char *fmt = (char *)format; |
| 231 | int param_num = 0; |
| 232 | long this_param; |
| 233 | long width; |
| 234 | long precision; |
| 235 | int flags; |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 236 | long max_param = 0; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 237 | long i; |
| 238 | |
| 239 | while(*fmt) { |
| 240 | if(*fmt++ == '%') { |
| 241 | if(*fmt == '%') { |
| 242 | fmt++; |
| 243 | continue; /* while */ |
| 244 | } |
| 245 | |
| 246 | flags = FLAGS_NEW; |
| 247 | |
| 248 | /* Handle the positional case (N$) */ |
| 249 | |
| 250 | param_num++; |
| 251 | |
| 252 | this_param = dprintf_DollarString(fmt, &fmt); |
| 253 | if(0 == this_param) |
| 254 | /* we got no positional, get the next counter */ |
| 255 | this_param = param_num; |
| 256 | |
| 257 | if(this_param > max_param) |
| 258 | max_param = this_param; |
| 259 | |
| 260 | /* |
| 261 | * The parameter with number 'i' should be used. Next, we need |
| 262 | * to get SIZE and TYPE of the parameter. Add the information |
| 263 | * to our array. |
| 264 | */ |
| 265 | |
| 266 | width = 0; |
| 267 | precision = 0; |
| 268 | |
| 269 | /* Handle the flags */ |
| 270 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 271 | while(dprintf_IsQualifierNoDollar(fmt)) { |
| 272 | #if defined(MP_HAVE_INT_EXTENSIONS) |
| 273 | if(!strncmp(fmt, "I32", 3)) { |
| 274 | flags |= FLAGS_LONG; |
| 275 | fmt += 3; |
| 276 | } |
| 277 | else if(!strncmp(fmt, "I64", 3)) { |
| 278 | flags |= FLAGS_LONGLONG; |
| 279 | fmt += 3; |
| 280 | } |
| 281 | else |
| 282 | #endif |
| 283 | |
| 284 | switch(*fmt++) { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 285 | case ' ': |
| 286 | flags |= FLAGS_SPACE; |
| 287 | break; |
| 288 | case '+': |
| 289 | flags |= FLAGS_SHOWSIGN; |
| 290 | break; |
| 291 | case '-': |
| 292 | flags |= FLAGS_LEFT; |
| 293 | flags &= ~FLAGS_PAD_NIL; |
| 294 | break; |
| 295 | case '#': |
| 296 | flags |= FLAGS_ALT; |
| 297 | break; |
| 298 | case '.': |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 299 | if('*' == *fmt) { |
| 300 | /* The precision is picked from a specified parameter */ |
| 301 | |
| 302 | flags |= FLAGS_PRECPARAM; |
| 303 | fmt++; |
| 304 | param_num++; |
| 305 | |
| 306 | i = dprintf_DollarString(fmt, &fmt); |
| 307 | if(i) |
| 308 | precision = i; |
| 309 | else |
| 310 | precision = param_num; |
| 311 | |
| 312 | if(precision > max_param) |
| 313 | max_param = precision; |
| 314 | } |
| 315 | else { |
| 316 | flags |= FLAGS_PREC; |
| 317 | precision = strtol(fmt, &fmt, 10); |
| 318 | } |
| 319 | break; |
| 320 | case 'h': |
| 321 | flags |= FLAGS_SHORT; |
| 322 | break; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 323 | #if defined(MP_HAVE_INT_EXTENSIONS) |
| 324 | case 'I': |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 325 | #if (SIZEOF_CURL_OFF_T > SIZEOF_LONG) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 326 | flags |= FLAGS_LONGLONG; |
| 327 | #else |
| 328 | flags |= FLAGS_LONG; |
| 329 | #endif |
| 330 | break; |
| 331 | #endif |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 332 | case 'l': |
| 333 | if(flags & FLAGS_LONG) |
| 334 | flags |= FLAGS_LONGLONG; |
| 335 | else |
| 336 | flags |= FLAGS_LONG; |
| 337 | break; |
| 338 | case 'L': |
| 339 | flags |= FLAGS_LONGDOUBLE; |
| 340 | break; |
| 341 | case 'q': |
| 342 | flags |= FLAGS_LONGLONG; |
| 343 | break; |
| 344 | case 'z': |
| 345 | /* the code below generates a warning if -Wunreachable-code is |
| 346 | used */ |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 347 | #if (SIZEOF_SIZE_T > SIZEOF_LONG) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 348 | flags |= FLAGS_LONGLONG; |
| 349 | #else |
| 350 | flags |= FLAGS_LONG; |
| 351 | #endif |
| 352 | break; |
| 353 | case 'O': |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 354 | #if (SIZEOF_CURL_OFF_T > SIZEOF_LONG) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 355 | flags |= FLAGS_LONGLONG; |
| 356 | #else |
| 357 | flags |= FLAGS_LONG; |
| 358 | #endif |
| 359 | break; |
| 360 | case '0': |
| 361 | if(!(flags & FLAGS_LEFT)) |
| 362 | flags |= FLAGS_PAD_NIL; |
| 363 | /* FALLTHROUGH */ |
| 364 | case '1': case '2': case '3': case '4': |
| 365 | case '5': case '6': case '7': case '8': case '9': |
| 366 | flags |= FLAGS_WIDTH; |
| 367 | width = strtol(fmt-1, &fmt, 10); |
| 368 | break; |
| 369 | case '*': /* Special case */ |
| 370 | flags |= FLAGS_WIDTHPARAM; |
| 371 | param_num++; |
| 372 | |
| 373 | i = dprintf_DollarString(fmt, &fmt); |
| 374 | if(i) |
| 375 | width = i; |
| 376 | else |
| 377 | width = param_num; |
| 378 | if(width > max_param) |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 379 | max_param = width; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 380 | break; |
| 381 | default: |
| 382 | break; |
| 383 | } |
| 384 | } /* switch */ |
| 385 | |
| 386 | /* Handle the specifier */ |
| 387 | |
| 388 | i = this_param - 1; |
| 389 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 390 | if((i < 0) || (i >= MAX_PARAMETERS)) |
| 391 | /* out of allowed range */ |
| 392 | return 1; |
| 393 | |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 394 | switch (*fmt) { |
| 395 | case 'S': |
| 396 | flags |= FLAGS_ALT; |
| 397 | /* FALLTHROUGH */ |
| 398 | case 's': |
| 399 | vto[i].type = FORMAT_STRING; |
| 400 | break; |
| 401 | case 'n': |
| 402 | vto[i].type = FORMAT_INTPTR; |
| 403 | break; |
| 404 | case 'p': |
| 405 | vto[i].type = FORMAT_PTR; |
| 406 | break; |
| 407 | case 'd': case 'i': |
| 408 | vto[i].type = FORMAT_INT; |
| 409 | break; |
| 410 | case 'u': |
| 411 | vto[i].type = FORMAT_INT; |
| 412 | flags |= FLAGS_UNSIGNED; |
| 413 | break; |
| 414 | case 'o': |
| 415 | vto[i].type = FORMAT_INT; |
| 416 | flags |= FLAGS_OCTAL; |
| 417 | break; |
| 418 | case 'x': |
| 419 | vto[i].type = FORMAT_INT; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 420 | flags |= FLAGS_HEX|FLAGS_UNSIGNED; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 421 | break; |
| 422 | case 'X': |
| 423 | vto[i].type = FORMAT_INT; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 424 | flags |= FLAGS_HEX|FLAGS_UPPER|FLAGS_UNSIGNED; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 425 | break; |
| 426 | case 'c': |
| 427 | vto[i].type = FORMAT_INT; |
| 428 | flags |= FLAGS_CHAR; |
| 429 | break; |
| 430 | case 'f': |
| 431 | vto[i].type = FORMAT_DOUBLE; |
| 432 | break; |
| 433 | case 'e': |
| 434 | vto[i].type = FORMAT_DOUBLE; |
| 435 | flags |= FLAGS_FLOATE; |
| 436 | break; |
| 437 | case 'E': |
| 438 | vto[i].type = FORMAT_DOUBLE; |
| 439 | flags |= FLAGS_FLOATE|FLAGS_UPPER; |
| 440 | break; |
| 441 | case 'g': |
| 442 | vto[i].type = FORMAT_DOUBLE; |
| 443 | flags |= FLAGS_FLOATG; |
| 444 | break; |
| 445 | case 'G': |
| 446 | vto[i].type = FORMAT_DOUBLE; |
| 447 | flags |= FLAGS_FLOATG|FLAGS_UPPER; |
| 448 | break; |
| 449 | default: |
| 450 | vto[i].type = FORMAT_UNKNOWN; |
| 451 | break; |
| 452 | } /* switch */ |
| 453 | |
| 454 | vto[i].flags = flags; |
| 455 | vto[i].width = width; |
| 456 | vto[i].precision = precision; |
| 457 | |
| 458 | if(flags & FLAGS_WIDTHPARAM) { |
| 459 | /* we have the width specified from a parameter, so we make that |
| 460 | parameter's info setup properly */ |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 461 | long k = width - 1; |
| 462 | vto[i].width = k; |
| 463 | vto[k].type = FORMAT_WIDTH; |
| 464 | vto[k].flags = FLAGS_NEW; |
| 465 | /* can't use width or precision of width! */ |
| 466 | vto[k].width = 0; |
| 467 | vto[k].precision = 0; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 468 | } |
| 469 | if(flags & FLAGS_PRECPARAM) { |
| 470 | /* we have the precision specified from a parameter, so we make that |
| 471 | parameter's info setup properly */ |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 472 | long k = precision - 1; |
| 473 | vto[i].precision = k; |
| 474 | vto[k].type = FORMAT_WIDTH; |
| 475 | vto[k].flags = FLAGS_NEW; |
| 476 | /* can't use width or precision of width! */ |
| 477 | vto[k].width = 0; |
| 478 | vto[k].precision = 0; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 479 | } |
| 480 | *endpos++ = fmt + 1; /* end of this sequence */ |
| 481 | } |
| 482 | } |
| 483 | |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 484 | /* Read the arg list parameters into our data list */ |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 485 | for(i = 0; i<max_param; i++) { |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 486 | /* Width/precision arguments must be read before the main argument |
| 487 | they are attached to */ |
| 488 | if(vto[i].flags & FLAGS_WIDTHPARAM) { |
| 489 | vto[vto[i].width].data.num.as_signed = |
| 490 | (mp_intmax_t)va_arg(arglist, int); |
| 491 | } |
| 492 | if(vto[i].flags & FLAGS_PRECPARAM) { |
| 493 | vto[vto[i].precision].data.num.as_signed = |
| 494 | (mp_intmax_t)va_arg(arglist, int); |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 495 | } |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 496 | |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 497 | switch(vto[i].type) { |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 498 | case FORMAT_STRING: |
| 499 | vto[i].data.str = va_arg(arglist, char *); |
| 500 | break; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 501 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 502 | case FORMAT_INTPTR: |
| 503 | case FORMAT_UNKNOWN: |
| 504 | case FORMAT_PTR: |
| 505 | vto[i].data.ptr = va_arg(arglist, void *); |
| 506 | break; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 507 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 508 | case FORMAT_INT: |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 509 | #ifdef HAVE_LONG_LONG_TYPE |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 510 | if((vto[i].flags & FLAGS_LONGLONG) && (vto[i].flags & FLAGS_UNSIGNED)) |
| 511 | vto[i].data.num.as_unsigned = |
| 512 | (mp_uintmax_t)va_arg(arglist, mp_uintmax_t); |
| 513 | else if(vto[i].flags & FLAGS_LONGLONG) |
| 514 | vto[i].data.num.as_signed = |
| 515 | (mp_intmax_t)va_arg(arglist, mp_intmax_t); |
| 516 | else |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 517 | #endif |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 518 | { |
| 519 | if((vto[i].flags & FLAGS_LONG) && (vto[i].flags & FLAGS_UNSIGNED)) |
| 520 | vto[i].data.num.as_unsigned = |
| 521 | (mp_uintmax_t)va_arg(arglist, unsigned long); |
| 522 | else if(vto[i].flags & FLAGS_LONG) |
| 523 | vto[i].data.num.as_signed = |
| 524 | (mp_intmax_t)va_arg(arglist, long); |
| 525 | else if(vto[i].flags & FLAGS_UNSIGNED) |
| 526 | vto[i].data.num.as_unsigned = |
| 527 | (mp_uintmax_t)va_arg(arglist, unsigned int); |
| 528 | else |
| 529 | vto[i].data.num.as_signed = |
| 530 | (mp_intmax_t)va_arg(arglist, int); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 531 | } |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 532 | break; |
| 533 | |
| 534 | case FORMAT_DOUBLE: |
| 535 | vto[i].data.dnum = va_arg(arglist, double); |
| 536 | break; |
| 537 | |
| 538 | case FORMAT_WIDTH: |
| 539 | /* Argument has been read. Silently convert it into an integer |
| 540 | * for later use |
| 541 | */ |
| 542 | vto[i].type = FORMAT_INT; |
| 543 | break; |
| 544 | |
| 545 | default: |
| 546 | break; |
| 547 | } |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 548 | } |
| 549 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 550 | return 0; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 551 | |
| 552 | } |
| 553 | |
| 554 | static int dprintf_formatf( |
| 555 | void *data, /* untouched by format(), just sent to the stream() function in |
| 556 | the second argument */ |
| 557 | /* function pointer called for each output character */ |
| 558 | int (*stream)(int, FILE *), |
| 559 | const char *format, /* %-formatted string */ |
| 560 | va_list ap_save) /* list of parameters */ |
| 561 | { |
| 562 | /* Base-36 digits for numbers. */ |
| 563 | const char *digits = lower_digits; |
| 564 | |
| 565 | /* Pointer into the format string. */ |
| 566 | char *f; |
| 567 | |
| 568 | /* Number of characters written. */ |
| 569 | int done = 0; |
| 570 | |
| 571 | long param; /* current parameter to read */ |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 572 | long param_num = 0; /* parameter counter */ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 573 | |
| 574 | va_stack_t vto[MAX_PARAMETERS]; |
| 575 | char *endpos[MAX_PARAMETERS]; |
| 576 | char **end; |
| 577 | |
| 578 | char work[BUFFSIZE]; |
| 579 | |
| 580 | va_stack_t *p; |
| 581 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 582 | /* 'workend' points to the final buffer byte position, but with an extra |
| 583 | byte as margin to avoid the (false?) warning Coverity gives us |
| 584 | otherwise */ |
| 585 | char *workend = &work[sizeof(work) - 2]; |
| 586 | |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 587 | /* Do the actual %-code parsing */ |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 588 | if(dprintf_Pass1(format, vto, endpos, ap_save)) |
| 589 | return -1; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 590 | |
| 591 | end = &endpos[0]; /* the initial end-position from the list dprintf_Pass1() |
| 592 | created for us */ |
| 593 | |
| 594 | f = (char *)format; |
| 595 | while(*f != '\0') { |
| 596 | /* Format spec modifiers. */ |
| 597 | int is_alt; |
| 598 | |
| 599 | /* Width of a field. */ |
| 600 | long width; |
| 601 | |
| 602 | /* Precision of a field. */ |
| 603 | long prec; |
| 604 | |
| 605 | /* Decimal integer is negative. */ |
| 606 | int is_neg; |
| 607 | |
| 608 | /* Base of a number to be written. */ |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 609 | unsigned long base; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 610 | |
| 611 | /* Integral values to be written. */ |
| 612 | mp_uintmax_t num; |
| 613 | |
| 614 | /* Used to convert negative in positive. */ |
| 615 | mp_intmax_t signed_num; |
| 616 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 617 | char *w; |
| 618 | |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 619 | if(*f != '%') { |
| 620 | /* This isn't a format spec, so write everything out until the next one |
| 621 | OR end of string is reached. */ |
| 622 | do { |
| 623 | OUTCHAR(*f); |
| 624 | } while(*++f && ('%' != *f)); |
| 625 | continue; |
| 626 | } |
| 627 | |
| 628 | ++f; |
| 629 | |
| 630 | /* Check for "%%". Note that although the ANSI standard lists |
| 631 | '%' as a conversion specifier, it says "The complete format |
| 632 | specification shall be `%%'," so we can avoid all the width |
| 633 | and precision processing. */ |
| 634 | if(*f == '%') { |
| 635 | ++f; |
| 636 | OUTCHAR('%'); |
| 637 | continue; |
| 638 | } |
| 639 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 640 | /* If this is a positional parameter, the position must follow immediately |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 641 | after the %, thus create a %<num>$ sequence */ |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 642 | param = dprintf_DollarString(f, &f); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 643 | |
| 644 | if(!param) |
| 645 | param = param_num; |
| 646 | else |
| 647 | --param; |
| 648 | |
| 649 | param_num++; /* increase this always to allow "%2$s %1$s %s" and then the |
| 650 | third %s will pick the 3rd argument */ |
| 651 | |
| 652 | p = &vto[param]; |
| 653 | |
| 654 | /* pick up the specified width */ |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 655 | if(p->flags & FLAGS_WIDTHPARAM) { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 656 | width = (long)vto[p->width].data.num.as_signed; |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 657 | param_num++; /* since the width is extracted from a parameter, we |
| 658 | must skip that to get to the next one properly */ |
| 659 | if(width < 0) { |
| 660 | /* "A negative field width is taken as a '-' flag followed by a |
| 661 | positive field width." */ |
| 662 | width = -width; |
| 663 | p->flags |= FLAGS_LEFT; |
| 664 | p->flags &= ~FLAGS_PAD_NIL; |
| 665 | } |
| 666 | } |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 667 | else |
| 668 | width = p->width; |
| 669 | |
| 670 | /* pick up the specified precision */ |
| 671 | if(p->flags & FLAGS_PRECPARAM) { |
| 672 | prec = (long)vto[p->precision].data.num.as_signed; |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 673 | param_num++; /* since the precision is extracted from a parameter, we |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 674 | must skip that to get to the next one properly */ |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 675 | if(prec < 0) |
| 676 | /* "A negative precision is taken as if the precision were |
| 677 | omitted." */ |
| 678 | prec = -1; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 679 | } |
| 680 | else if(p->flags & FLAGS_PREC) |
| 681 | prec = p->precision; |
| 682 | else |
| 683 | prec = -1; |
| 684 | |
| 685 | is_alt = (p->flags & FLAGS_ALT) ? 1 : 0; |
| 686 | |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 687 | switch(p->type) { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 688 | case FORMAT_INT: |
| 689 | num = p->data.num.as_unsigned; |
| 690 | if(p->flags & FLAGS_CHAR) { |
| 691 | /* Character. */ |
| 692 | if(!(p->flags & FLAGS_LEFT)) |
| 693 | while(--width > 0) |
| 694 | OUTCHAR(' '); |
| 695 | OUTCHAR((char) num); |
| 696 | if(p->flags & FLAGS_LEFT) |
| 697 | while(--width > 0) |
| 698 | OUTCHAR(' '); |
| 699 | break; |
| 700 | } |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 701 | if(p->flags & FLAGS_OCTAL) { |
| 702 | /* Octal unsigned integer. */ |
| 703 | base = 8; |
| 704 | goto unsigned_number; |
| 705 | } |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 706 | else if(p->flags & FLAGS_HEX) { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 707 | /* Hexadecimal unsigned integer. */ |
| 708 | |
| 709 | digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits; |
| 710 | base = 16; |
| 711 | goto unsigned_number; |
| 712 | } |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 713 | else if(p->flags & FLAGS_UNSIGNED) { |
| 714 | /* Decimal unsigned integer. */ |
| 715 | base = 10; |
| 716 | goto unsigned_number; |
| 717 | } |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 718 | |
| 719 | /* Decimal integer. */ |
| 720 | base = 10; |
| 721 | |
| 722 | is_neg = (p->data.num.as_signed < (mp_intmax_t)0) ? 1 : 0; |
| 723 | if(is_neg) { |
| 724 | /* signed_num might fail to hold absolute negative minimum by 1 */ |
| 725 | signed_num = p->data.num.as_signed + (mp_intmax_t)1; |
| 726 | signed_num = -signed_num; |
| 727 | num = (mp_uintmax_t)signed_num; |
| 728 | num += (mp_uintmax_t)1; |
| 729 | } |
| 730 | |
| 731 | goto number; |
| 732 | |
| 733 | unsigned_number: |
| 734 | /* Unsigned number of base BASE. */ |
| 735 | is_neg = 0; |
| 736 | |
| 737 | number: |
| 738 | /* Number of base BASE. */ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 739 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 740 | /* Supply a default precision if none was given. */ |
| 741 | if(prec == -1) |
| 742 | prec = 1; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 743 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 744 | /* Put the number in WORK. */ |
| 745 | w = workend; |
| 746 | while(num > 0) { |
| 747 | *w-- = digits[num % base]; |
| 748 | num /= base; |
| 749 | } |
| 750 | width -= (long)(workend - w); |
| 751 | prec -= (long)(workend - w); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 752 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 753 | if(is_alt && base == 8 && prec <= 0) { |
| 754 | *w-- = '0'; |
| 755 | --width; |
| 756 | } |
| 757 | |
| 758 | if(prec > 0) { |
| 759 | width -= prec; |
| 760 | while(prec-- > 0) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 761 | *w-- = '0'; |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 762 | } |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 763 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 764 | if(is_alt && base == 16) |
| 765 | width -= 2; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 766 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 767 | if(is_neg || (p->flags & FLAGS_SHOWSIGN) || (p->flags & FLAGS_SPACE)) |
| 768 | --width; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 769 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 770 | if(!(p->flags & FLAGS_LEFT) && !(p->flags & FLAGS_PAD_NIL)) |
| 771 | while(width-- > 0) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 772 | OUTCHAR(' '); |
| 773 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 774 | if(is_neg) |
| 775 | OUTCHAR('-'); |
| 776 | else if(p->flags & FLAGS_SHOWSIGN) |
| 777 | OUTCHAR('+'); |
| 778 | else if(p->flags & FLAGS_SPACE) |
| 779 | OUTCHAR(' '); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 780 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 781 | if(is_alt && base == 16) { |
| 782 | OUTCHAR('0'); |
| 783 | if(p->flags & FLAGS_UPPER) |
| 784 | OUTCHAR('X'); |
| 785 | else |
| 786 | OUTCHAR('x'); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 787 | } |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 788 | |
| 789 | if(!(p->flags & FLAGS_LEFT) && (p->flags & FLAGS_PAD_NIL)) |
| 790 | while(width-- > 0) |
| 791 | OUTCHAR('0'); |
| 792 | |
| 793 | /* Write the number. */ |
| 794 | while(++w <= workend) { |
| 795 | OUTCHAR(*w); |
| 796 | } |
| 797 | |
| 798 | if(p->flags & FLAGS_LEFT) |
| 799 | while(width-- > 0) |
| 800 | OUTCHAR(' '); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 801 | break; |
| 802 | |
| 803 | case FORMAT_STRING: |
| 804 | /* String. */ |
| 805 | { |
| 806 | static const char null[] = "(nil)"; |
| 807 | const char *str; |
| 808 | size_t len; |
| 809 | |
| 810 | str = (char *) p->data.str; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 811 | if(str == NULL) { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 812 | /* Write null[] if there's space. */ |
| 813 | if(prec == -1 || prec >= (long) sizeof(null) - 1) { |
| 814 | str = null; |
| 815 | len = sizeof(null) - 1; |
| 816 | /* Disable quotes around (nil) */ |
| 817 | p->flags &= (~FLAGS_ALT); |
| 818 | } |
| 819 | else { |
| 820 | str = ""; |
| 821 | len = 0; |
| 822 | } |
| 823 | } |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 824 | else if(prec != -1) |
| 825 | len = (size_t)prec; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 826 | else |
| 827 | len = strlen(str); |
| 828 | |
Alex Deymo | 8f1a214 | 2016-06-28 14:49:26 -0700 | [diff] [blame] | 829 | width -= (len > LONG_MAX) ? LONG_MAX : (long)len; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 830 | |
| 831 | if(p->flags & FLAGS_ALT) |
| 832 | OUTCHAR('"'); |
| 833 | |
| 834 | if(!(p->flags&FLAGS_LEFT)) |
| 835 | while(width-- > 0) |
| 836 | OUTCHAR(' '); |
| 837 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 838 | while((len-- > 0) && *str) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 839 | OUTCHAR(*str++); |
| 840 | if(p->flags&FLAGS_LEFT) |
| 841 | while(width-- > 0) |
| 842 | OUTCHAR(' '); |
| 843 | |
| 844 | if(p->flags & FLAGS_ALT) |
| 845 | OUTCHAR('"'); |
| 846 | } |
| 847 | break; |
| 848 | |
| 849 | case FORMAT_PTR: |
| 850 | /* Generic pointer. */ |
| 851 | { |
| 852 | void *ptr; |
| 853 | ptr = (void *) p->data.ptr; |
| 854 | if(ptr != NULL) { |
| 855 | /* If the pointer is not NULL, write it as a %#x spec. */ |
| 856 | base = 16; |
| 857 | digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits; |
| 858 | is_alt = 1; |
| 859 | num = (size_t) ptr; |
| 860 | is_neg = 0; |
| 861 | goto number; |
| 862 | } |
| 863 | else { |
| 864 | /* Write "(nil)" for a nil pointer. */ |
| 865 | static const char strnil[] = "(nil)"; |
| 866 | const char *point; |
| 867 | |
| 868 | width -= (long)(sizeof(strnil) - 1); |
| 869 | if(p->flags & FLAGS_LEFT) |
| 870 | while(width-- > 0) |
| 871 | OUTCHAR(' '); |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 872 | for(point = strnil; *point != '\0'; ++point) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 873 | OUTCHAR(*point); |
| 874 | if(! (p->flags & FLAGS_LEFT)) |
| 875 | while(width-- > 0) |
| 876 | OUTCHAR(' '); |
| 877 | } |
| 878 | } |
| 879 | break; |
| 880 | |
| 881 | case FORMAT_DOUBLE: |
| 882 | { |
| 883 | char formatbuf[32]="%"; |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 884 | char *fptr = &formatbuf[1]; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 885 | size_t left = sizeof(formatbuf)-strlen(formatbuf); |
| 886 | int len; |
| 887 | |
| 888 | width = -1; |
| 889 | if(p->flags & FLAGS_WIDTH) |
| 890 | width = p->width; |
| 891 | else if(p->flags & FLAGS_WIDTHPARAM) |
| 892 | width = (long)vto[p->width].data.num.as_signed; |
| 893 | |
| 894 | prec = -1; |
| 895 | if(p->flags & FLAGS_PREC) |
| 896 | prec = p->precision; |
| 897 | else if(p->flags & FLAGS_PRECPARAM) |
| 898 | prec = (long)vto[p->precision].data.num.as_signed; |
| 899 | |
| 900 | if(p->flags & FLAGS_LEFT) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 901 | *fptr++ = '-'; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 902 | if(p->flags & FLAGS_SHOWSIGN) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 903 | *fptr++ = '+'; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 904 | if(p->flags & FLAGS_SPACE) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 905 | *fptr++ = ' '; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 906 | if(p->flags & FLAGS_ALT) |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 907 | *fptr++ = '#'; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 908 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 909 | *fptr = 0; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 910 | |
| 911 | if(width >= 0) { |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 912 | if(width >= (long)sizeof(work)) |
| 913 | width = sizeof(work)-1; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 914 | /* RECURSIVE USAGE */ |
| 915 | len = curl_msnprintf(fptr, left, "%ld", width); |
| 916 | fptr += len; |
| 917 | left -= len; |
| 918 | } |
| 919 | if(prec >= 0) { |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 920 | /* for each digit in the integer part, we can have one less |
| 921 | precision */ |
| 922 | size_t maxprec = sizeof(work) - 2; |
| 923 | double val = p->data.dnum; |
| 924 | while(val >= 10.0) { |
| 925 | val /= 10; |
| 926 | maxprec--; |
| 927 | } |
| 928 | |
| 929 | if(prec > (long)maxprec) |
| 930 | prec = (long)maxprec-1; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 931 | /* RECURSIVE USAGE */ |
| 932 | len = curl_msnprintf(fptr, left, ".%ld", prec); |
| 933 | fptr += len; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 934 | } |
| 935 | if(p->flags & FLAGS_LONG) |
| 936 | *fptr++ = 'l'; |
| 937 | |
| 938 | if(p->flags & FLAGS_FLOATE) |
| 939 | *fptr++ = (char)((p->flags & FLAGS_UPPER) ? 'E':'e'); |
| 940 | else if(p->flags & FLAGS_FLOATG) |
| 941 | *fptr++ = (char)((p->flags & FLAGS_UPPER) ? 'G' : 'g'); |
| 942 | else |
| 943 | *fptr++ = 'f'; |
| 944 | |
| 945 | *fptr = 0; /* and a final zero termination */ |
| 946 | |
Bertrand SIMONNET | e6cd738 | 2015-07-01 15:39:44 -0700 | [diff] [blame] | 947 | /* NOTE NOTE NOTE!! Not all sprintf implementations return number of |
| 948 | output characters */ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 949 | (sprintf)(work, formatbuf, p->data.dnum); |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 950 | DEBUGASSERT(strlen(work) <= sizeof(work)); |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 951 | for(fptr = work; *fptr; fptr++) |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 952 | OUTCHAR(*fptr); |
| 953 | } |
| 954 | break; |
| 955 | |
| 956 | case FORMAT_INTPTR: |
| 957 | /* Answer the count of characters written. */ |
| 958 | #ifdef HAVE_LONG_LONG_TYPE |
| 959 | if(p->flags & FLAGS_LONGLONG) |
| 960 | *(LONG_LONG_TYPE *) p->data.ptr = (LONG_LONG_TYPE)done; |
| 961 | else |
| 962 | #endif |
| 963 | if(p->flags & FLAGS_LONG) |
| 964 | *(long *) p->data.ptr = (long)done; |
| 965 | else if(!(p->flags & FLAGS_SHORT)) |
| 966 | *(int *) p->data.ptr = (int)done; |
| 967 | else |
| 968 | *(short *) p->data.ptr = (short)done; |
| 969 | break; |
| 970 | |
| 971 | default: |
| 972 | break; |
| 973 | } |
| 974 | f = *end++; /* goto end of %-code */ |
| 975 | |
| 976 | } |
| 977 | return done; |
| 978 | } |
| 979 | |
| 980 | /* fputc() look-alike */ |
| 981 | static int addbyter(int output, FILE *data) |
| 982 | { |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 983 | struct nsprintf *infop = (struct nsprintf *)data; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 984 | unsigned char outc = (unsigned char)output; |
| 985 | |
| 986 | if(infop->length < infop->max) { |
| 987 | /* only do this if we haven't reached max length yet */ |
| 988 | infop->buffer[0] = outc; /* store */ |
| 989 | infop->buffer++; /* increase pointer */ |
| 990 | infop->length++; /* we are now one byte larger */ |
| 991 | return outc; /* fputc() returns like this on success */ |
| 992 | } |
| 993 | return -1; |
| 994 | } |
| 995 | |
| 996 | int curl_mvsnprintf(char *buffer, size_t maxlength, const char *format, |
| 997 | va_list ap_save) |
| 998 | { |
| 999 | int retcode; |
| 1000 | struct nsprintf info; |
| 1001 | |
| 1002 | info.buffer = buffer; |
| 1003 | info.length = 0; |
| 1004 | info.max = maxlength; |
| 1005 | |
| 1006 | retcode = dprintf_formatf(&info, addbyter, format, ap_save); |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1007 | if((retcode != -1) && info.max) { |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1008 | /* we terminate this with a zero byte */ |
| 1009 | if(info.max == info.length) |
| 1010 | /* we're at maximum, scrap the last letter */ |
| 1011 | info.buffer[-1] = 0; |
| 1012 | else |
| 1013 | info.buffer[0] = 0; |
| 1014 | } |
| 1015 | return retcode; |
| 1016 | } |
| 1017 | |
| 1018 | int curl_msnprintf(char *buffer, size_t maxlength, const char *format, ...) |
| 1019 | { |
| 1020 | int retcode; |
| 1021 | va_list ap_save; /* argument pointer */ |
| 1022 | va_start(ap_save, format); |
| 1023 | retcode = curl_mvsnprintf(buffer, maxlength, format, ap_save); |
| 1024 | va_end(ap_save); |
| 1025 | return retcode; |
| 1026 | } |
| 1027 | |
| 1028 | /* fputc() look-alike */ |
| 1029 | static int alloc_addbyter(int output, FILE *data) |
| 1030 | { |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 1031 | struct asprintf *infop = (struct asprintf *)data; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1032 | unsigned char outc = (unsigned char)output; |
| 1033 | |
| 1034 | if(!infop->buffer) { |
| 1035 | infop->buffer = malloc(32); |
| 1036 | if(!infop->buffer) { |
| 1037 | infop->fail = 1; |
| 1038 | return -1; /* fail */ |
| 1039 | } |
| 1040 | infop->alloc = 32; |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 1041 | infop->len = 0; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1042 | } |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 1043 | else if(infop->len + 1 >= infop->alloc) { |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1044 | char *newptr = NULL; |
| 1045 | size_t newsize = infop->alloc*2; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1046 | |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1047 | /* detect wrap-around or other overflow problems */ |
| 1048 | if(newsize > infop->alloc) |
| 1049 | newptr = realloc(infop->buffer, newsize); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1050 | |
| 1051 | if(!newptr) { |
| 1052 | infop->fail = 1; |
| 1053 | return -1; /* fail */ |
| 1054 | } |
| 1055 | infop->buffer = newptr; |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1056 | infop->alloc = newsize; |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1057 | } |
| 1058 | |
| 1059 | infop->buffer[ infop->len ] = outc; |
| 1060 | |
| 1061 | infop->len++; |
| 1062 | |
| 1063 | return outc; /* fputc() returns like this on success */ |
| 1064 | } |
| 1065 | |
| 1066 | char *curl_maprintf(const char *format, ...) |
| 1067 | { |
| 1068 | va_list ap_save; /* argument pointer */ |
| 1069 | int retcode; |
| 1070 | struct asprintf info; |
| 1071 | |
| 1072 | info.buffer = NULL; |
| 1073 | info.len = 0; |
| 1074 | info.alloc = 0; |
| 1075 | info.fail = 0; |
| 1076 | |
| 1077 | va_start(ap_save, format); |
| 1078 | retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save); |
| 1079 | va_end(ap_save); |
| 1080 | if((-1 == retcode) || info.fail) { |
| 1081 | if(info.alloc) |
| 1082 | free(info.buffer); |
| 1083 | return NULL; |
| 1084 | } |
| 1085 | if(info.alloc) { |
| 1086 | info.buffer[info.len] = 0; /* we terminate this with a zero byte */ |
| 1087 | return info.buffer; |
| 1088 | } |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 1089 | return strdup(""); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1090 | } |
| 1091 | |
| 1092 | char *curl_mvaprintf(const char *format, va_list ap_save) |
| 1093 | { |
| 1094 | int retcode; |
| 1095 | struct asprintf info; |
| 1096 | |
| 1097 | info.buffer = NULL; |
| 1098 | info.len = 0; |
| 1099 | info.alloc = 0; |
| 1100 | info.fail = 0; |
| 1101 | |
| 1102 | retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save); |
| 1103 | if((-1 == retcode) || info.fail) { |
| 1104 | if(info.alloc) |
| 1105 | free(info.buffer); |
| 1106 | return NULL; |
| 1107 | } |
| 1108 | |
| 1109 | if(info.alloc) { |
| 1110 | info.buffer[info.len] = 0; /* we terminate this with a zero byte */ |
| 1111 | return info.buffer; |
| 1112 | } |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 1113 | return strdup(""); |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1114 | } |
| 1115 | |
| 1116 | static int storebuffer(int output, FILE *data) |
| 1117 | { |
| 1118 | char **buffer = (char **)data; |
| 1119 | unsigned char outc = (unsigned char)output; |
| 1120 | **buffer = outc; |
| 1121 | (*buffer)++; |
| 1122 | return outc; /* act like fputc() ! */ |
| 1123 | } |
| 1124 | |
| 1125 | int curl_msprintf(char *buffer, const char *format, ...) |
| 1126 | { |
| 1127 | va_list ap_save; /* argument pointer */ |
| 1128 | int retcode; |
| 1129 | va_start(ap_save, format); |
| 1130 | retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save); |
| 1131 | va_end(ap_save); |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 1132 | *buffer = 0; /* we terminate this with a zero byte */ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1133 | return retcode; |
| 1134 | } |
| 1135 | |
| 1136 | int curl_mprintf(const char *format, ...) |
| 1137 | { |
| 1138 | int retcode; |
| 1139 | va_list ap_save; /* argument pointer */ |
| 1140 | va_start(ap_save, format); |
| 1141 | |
| 1142 | retcode = dprintf_formatf(stdout, fputc, format, ap_save); |
| 1143 | va_end(ap_save); |
| 1144 | return retcode; |
| 1145 | } |
| 1146 | |
| 1147 | int curl_mfprintf(FILE *whereto, const char *format, ...) |
| 1148 | { |
| 1149 | int retcode; |
| 1150 | va_list ap_save; /* argument pointer */ |
| 1151 | va_start(ap_save, format); |
| 1152 | retcode = dprintf_formatf(whereto, fputc, format, ap_save); |
| 1153 | va_end(ap_save); |
| 1154 | return retcode; |
| 1155 | } |
| 1156 | |
| 1157 | int curl_mvsprintf(char *buffer, const char *format, va_list ap_save) |
| 1158 | { |
| 1159 | int retcode; |
| 1160 | retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save); |
Alex Deymo | 486467e | 2017-12-19 19:04:07 +0100 | [diff] [blame] | 1161 | *buffer = 0; /* we terminate this with a zero byte */ |
Kristian Monsen | 5ab5018 | 2010-05-14 18:53:44 +0100 | [diff] [blame] | 1162 | return retcode; |
| 1163 | } |
| 1164 | |
| 1165 | int curl_mvprintf(const char *format, va_list ap_save) |
| 1166 | { |
| 1167 | return dprintf_formatf(stdout, fputc, format, ap_save); |
| 1168 | } |
| 1169 | |
| 1170 | int curl_mvfprintf(FILE *whereto, const char *format, va_list ap_save) |
| 1171 | { |
| 1172 | return dprintf_formatf(whereto, fputc, format, ap_save); |
| 1173 | } |