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1271 cejka 1
/*
2071 jermar 2
 * Copyright (c) 2001-2004 Jakub Jermar
3
 * Copyright (c) 2006 Josef Cejka
1271 cejka 4
 * All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 *
10
 * - Redistributions of source code must retain the above copyright
11
 *   notice, this list of conditions and the following disclaimer.
12
 * - Redistributions in binary form must reproduce the above copyright
13
 *   notice, this list of conditions and the following disclaimer in the
14
 *   documentation and/or other materials provided with the distribution.
15
 * - The name of the author may not be used to endorse or promote products
16
 *   derived from this software without specific prior written permission.
17
 *
18
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
 */
29
 
1888 jermar 30
/** @addtogroup generic
1702 cejka 31
 * @{
32
 */
1271 cejka 33
/**
1702 cejka 34
 * @file
1271 cejka 35
 * @brief   Printing functions.
36
 */
37
 
38
#include <printf/printf_core.h>
39
#include <putchar.h>
40
#include <print.h>
41
#include <arch/arg.h>
2572 jermar 42
#include <macros.h>
4153 mejdrech 43
#include <string.h>
1271 cejka 44
#include <arch.h>
45
 
2572 jermar 46
/** show prefixes 0x or 0 */
47
#define __PRINTF_FLAG_PREFIX        0x00000001
48
/** signed / unsigned number */
49
#define __PRINTF_FLAG_SIGNED        0x00000002
50
/** print leading zeroes */
51
#define __PRINTF_FLAG_ZEROPADDED    0x00000004
52
/** align to left */
53
#define __PRINTF_FLAG_LEFTALIGNED   0x00000010
54
/** always show + sign */
55
#define __PRINTF_FLAG_SHOWPLUS      0x00000020
56
/** print space instead of plus */
57
#define __PRINTF_FLAG_SPACESIGN     0x00000040
58
/** show big characters */
59
#define __PRINTF_FLAG_BIGCHARS      0x00000080
60
/** number has - sign */
61
#define __PRINTF_FLAG_NEGATIVE      0x00000100
1271 cejka 62
 
2572 jermar 63
/**
64
 * Buffer big enough for 64-bit number printed in base 2, sign, prefix and 0
65
 * to terminate string... (last one is only for better testing end of buffer by
66
 * zero-filling subroutine)
67
 */
68
#define PRINT_NUMBER_BUFFER_SIZE    (64 + 5)    
1271 cejka 69
 
70
/** Enumeration of possible arguments types.
71
 */
72
typedef enum {
73
    PrintfQualifierByte = 0,
74
    PrintfQualifierShort,
75
    PrintfQualifierInt,
76
    PrintfQualifierLong,
77
    PrintfQualifierLongLong,
78
    PrintfQualifierPointer
79
} qualifier_t;
80
 
2572 jermar 81
static char digits_small[] = "0123456789abcdef";
82
static char digits_big[] = "0123456789ABCDEF";
1271 cejka 83
 
2572 jermar 84
/** Print one or more characters without adding newline.
85
 *
86
 * @param buf       Buffer with size at least count bytes. NULL pointer is
87
 *          not allowed!
88
 * @param count     Number of characters to print.
89
 * @param ps        Output method and its data.
90
 * @return      Number of characters printed.
1271 cejka 91
 */
2572 jermar 92
static int printf_putnchars(const char * buf, size_t count,
93
    struct printf_spec *ps)
1271 cejka 94
{
2745 decky 95
    return ps->write((void *) buf, count, ps->data);
1271 cejka 96
}
97
 
2572 jermar 98
/** Print a string without adding a newline.
99
 *
100
 * @param str       String to print.
101
 * @param ps        Write function specification and support data.
102
 * @return      Number of characters printed.
1271 cejka 103
 */
104
static int printf_putstr(const char * str, struct printf_spec *ps)
105
{
106
    size_t count;
107
 
108
    if (str == NULL) {
2572 jermar 109
        char *nullstr = "(NULL)";
110
        return printf_putnchars(nullstr, strlen(nullstr), ps);
1271 cejka 111
    }
112
 
113
    count = strlen(str);
114
 
1604 cejka 115
    return ps->write((void *) str, count, ps->data);
1271 cejka 116
}
117
 
2572 jermar 118
/** Print one character.
119
 *
120
 * @param c     Character to be printed.
121
 * @param ps        Output method.
122
 *
123
 * @return      Number of characters printed.
1271 cejka 124
 */
125
static int printf_putchar(int c, struct printf_spec *ps)
126
{
127
    unsigned char ch = c;
128
 
1604 cejka 129
    return ps->write((void *) &ch, 1, ps->data);
1271 cejka 130
}
131
 
2572 jermar 132
/** Print one formatted character.
133
 *
134
 * @param c     Character to print.
135
 * @param width     Width modifier.
136
 * @param flags     Flags that change the way the character is printed.
137
 *
138
 * @return      Number of characters printed, negative value on failure.
1271 cejka 139
 */
1780 jermar 140
static int print_char(char c, int width, uint64_t flags, struct printf_spec *ps)
1271 cejka 141
{
142
    int counter = 0;
143
 
144
    if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) {
2572 jermar 145
        while (--width > 0) {
146
            /*
147
             * One space is consumed by the character itself, hence
148
             * the predecrement.
149
             */
1604 cejka 150
            if (printf_putchar(' ', ps) > 0)   
151
                ++counter;
1271 cejka 152
        }
153
    }
154
 
1604 cejka 155
    if (printf_putchar(c, ps) > 0)
156
        counter++;
1271 cejka 157
 
2572 jermar 158
    while (--width > 0) {
159
            /*
160
             * One space is consumed by the character itself, hence
161
             * the predecrement.
162
             */
1604 cejka 163
        if (printf_putchar(' ', ps) > 0)
164
            ++counter;
1271 cejka 165
    }
166
 
167
    return ++counter;
168
}
169
 
2572 jermar 170
/** Print string.
171
 *
172
 * @param s     String to be printed.
173
 * @param width     Width modifier.
174
 * @param precision Precision modifier.
175
 * @param flags     Flags that modify the way the string is printed.
176
 *
177
 * @return      Number of characters printed, negative value on failure.
178
 */
2745 decky 179
static int print_string(char *s, int width, unsigned int precision,
180
    uint64_t flags, struct printf_spec *ps)
1271 cejka 181
{
182
    int counter = 0;
183
    size_t size;
1604 cejka 184
    int retval;
1271 cejka 185
 
186
    if (s == NULL) {
187
        return printf_putstr("(NULL)", ps);
188
    }
189
 
190
    size = strlen(s);
191
 
192
    /* print leading spaces */
193
 
194
    if (precision == 0)
195
        precision = size;
196
 
197
    width -= precision;
198
 
199
    if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) {
200
        while (width-- > 0) {  
1604 cejka 201
            if (printf_putchar(' ', ps) == 1)  
202
                counter++;
1271 cejka 203
        }
204
    }
205
 
2572 jermar 206
    if ((retval = printf_putnchars(s, min(size, precision), ps)) < 0) {
1604 cejka 207
        return -counter;
1271 cejka 208
    }
1604 cejka 209
    counter += retval; 
1271 cejka 210
 
211
    while (width-- > 0) {
1604 cejka 212
        if (printf_putchar(' ', ps) == 1)  
213
            ++counter;
1271 cejka 214
    }
215
 
1604 cejka 216
    return counter;
1271 cejka 217
}
218
 
219
 
2572 jermar 220
/** Print a number in a given base.
1271 cejka 221
 *
2572 jermar 222
 * Print significant digits of a number in given base.
1271 cejka 223
 *
2572 jermar 224
 * @param num       Number to print.
225
 * @param widt      Width modifier.h
226
 * @param precision Precision modifier.
227
 * @param base      Base to print the number in (must be between 2 and 16).
228
 * @param flags     Flags that modify the way the number is printed.   
1271 cejka 229
 *
2572 jermar 230
 * @return      Number of characters printed.
231
 *
1271 cejka 232
 */
2572 jermar 233
static int print_number(uint64_t num, int width, int precision, int base,
234
    uint64_t flags, struct printf_spec *ps)
1271 cejka 235
{
236
    char *digits = digits_small;
2572 jermar 237
    char d[PRINT_NUMBER_BUFFER_SIZE];
1271 cejka 238
    char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1];
2572 jermar 239
    int size = 0;       /* size of number with all prefixes and signs */
240
    int number_size;    /* size of plain number */
1271 cejka 241
    char sgn;
1604 cejka 242
    int retval;
243
    int counter = 0;
1271 cejka 244
 
245
    if (flags & __PRINTF_FLAG_BIGCHARS)
246
        digits = digits_big;   
247
 
248
    *ptr-- = 0; /* Put zero at end of string */
249
 
250
    if (num == 0) {
251
        *ptr-- = '0';
252
        size++;
253
    } else {
254
        do {
255
            *ptr-- = digits[num % base];
256
            size++;
257
        } while (num /= base);
258
    }
259
 
260
    number_size = size;
261
 
2572 jermar 262
    /*
263
     * Collect the sum of all prefixes/signs/... to calculate padding and
264
     * leading zeroes.
265
     */
1271 cejka 266
    if (flags & __PRINTF_FLAG_PREFIX) {
267
        switch(base) {
2070 jermar 268
        case 2: /* Binary formating is not standard, but usefull */
269
            size += 2;
270
            break;
271
        case 8:
272
            size++;
273
            break;
274
        case 16:
275
            size += 2;
276
            break;
1271 cejka 277
        }
278
    }
279
 
280
    sgn = 0;
281
    if (flags & __PRINTF_FLAG_SIGNED) {
282
        if (flags & __PRINTF_FLAG_NEGATIVE) {
283
            sgn = '-';
284
            size++;
285
        } else if (flags & __PRINTF_FLAG_SHOWPLUS) {
2572 jermar 286
            sgn = '+';
287
            size++;
288
        } else if (flags & __PRINTF_FLAG_SPACESIGN) {
289
            sgn = ' ';
290
            size++;
291
        }
1271 cejka 292
    }
293
 
294
    if (flags & __PRINTF_FLAG_LEFTALIGNED) {
295
        flags &= ~__PRINTF_FLAG_ZEROPADDED;
296
    }
297
 
2572 jermar 298
    /*
299
     * If the number is leftaligned or precision is specified then
300
     * zeropadding is ignored.
301
     */
1271 cejka 302
    if (flags & __PRINTF_FLAG_ZEROPADDED) {
303
        if ((precision == 0) && (width > size)) {
304
            precision = width - size + number_size;
305
        }
306
    }
307
 
308
    /* print leading spaces */
2572 jermar 309
    if (number_size > precision) {
310
        /* print the whole number not only a part */
1271 cejka 311
        precision = number_size;
2572 jermar 312
    }
1271 cejka 313
 
314
    width -= precision + size - number_size;
315
 
316
    if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) {
317
        while (width-- > 0) {  
1604 cejka 318
            if (printf_putchar(' ', ps) == 1)  
319
                counter++;
1271 cejka 320
        }
321
    }
322
 
1604 cejka 323
 
1271 cejka 324
    /* print sign */
325
    if (sgn) {
1604 cejka 326
        if (printf_putchar(sgn, ps) == 1)
327
            counter++;
1271 cejka 328
    }
329
 
330
    /* print prefix */
331
 
332
    if (flags & __PRINTF_FLAG_PREFIX) {
333
        switch(base) {
2070 jermar 334
        case 2: /* Binary formating is not standard, but usefull */
335
            if (printf_putchar('0', ps) == 1)
336
                counter++;
337
            if (flags & __PRINTF_FLAG_BIGCHARS) {
338
                if (printf_putchar('B', ps) == 1)
1604 cejka 339
                    counter++;
2070 jermar 340
            } else {
341
                if (printf_putchar('b', ps) == 1)
1604 cejka 342
                    counter++;
2070 jermar 343
            }
344
            break;
345
        case 8:
346
            if (printf_putchar('o', ps) == 1)
347
                counter++;
348
            break;
349
        case 16:
350
            if (printf_putchar('0', ps) == 1)
351
                counter++;
352
            if (flags & __PRINTF_FLAG_BIGCHARS) {
353
                if (printf_putchar('X', ps) == 1)
1604 cejka 354
                    counter++;
2070 jermar 355
            } else {
356
                if (printf_putchar('x', ps) == 1)
357
                    counter++;
358
            }
359
            break;
1271 cejka 360
        }
361
    }
362
 
363
    /* print leading zeroes */
364
    precision -= number_size;
365
    while (precision-- > 0) {  
1604 cejka 366
        if (printf_putchar('0', ps) == 1)
367
            counter++;
1271 cejka 368
    }
369
 
370
 
371
    /* print number itself */
372
 
1604 cejka 373
    if ((retval = printf_putstr(++ptr, ps)) > 0) {
374
        counter += retval;
375
    }
1271 cejka 376
 
377
    /* print ending spaces */
378
 
379
    while (width-- > 0) {  
1604 cejka 380
        if (printf_putchar(' ', ps) == 1)  
381
            counter++;
1271 cejka 382
    }
383
 
1604 cejka 384
    return counter;
1271 cejka 385
}
386
 
387
 
388
/** Print formatted string.
389
 *
2572 jermar 390
 * Print string formatted according to the fmt parameter and variadic arguments.
391
 * Each formatting directive must have the following form:
1271 cejka 392
 *
393
 *  \% [ FLAGS ] [ WIDTH ] [ .PRECISION ] [ TYPE ] CONVERSION
394
 *
395
 * FLAGS:@n
2572 jermar 396
 *  - "#"   Force to print prefix.For \%o conversion, the prefix is 0, for
397
 *      \%x and \%X prefixes are 0x and 0X and for conversion \%b the
398
 *      prefix is 0b.
1271 cejka 399
 *
400
 *  - "-"   Align to left.
401
 *
402
 *  - "+"   Print positive sign just as negative.
403
 *
2572 jermar 404
 *  - " "   If the printed number is positive and "+" flag is not set,
405
 *      print space in place of sign.
1271 cejka 406
 *
2572 jermar 407
 *  - "0"   Print 0 as padding instead of spaces. Zeroes are placed between
408
 *      sign and the rest of the number. This flag is ignored if "-"
409
 *      flag is specified.
1271 cejka 410
 *
411
 * WIDTH:@n
2572 jermar 412
 *  - Specify the minimal width of a printed argument. If it is bigger,
413
 *  width is ignored. If width is specified with a "*" character instead of
414
 *  number, width is taken from parameter list. And integer parameter is
415
 *  expected before parameter for processed conversion specification. If
416
 *  this value is negative its absolute value is taken and the "-" flag is
417
 *  set.
1271 cejka 418
 *
419
 * PRECISION:@n
420
 *  - Value precision. For numbers it specifies minimum valid numbers.
2572 jermar 421
 *  Smaller numbers are printed with leading zeroes. Bigger numbers are not
422
 *  affected. Strings with more than precision characters are cut off. Just
423
 *  as with width, an "*" can be used used instead of a number. An integer
424
 *  value is then expected in parameters. When both width and precision are
425
 *  specified using "*", the first parameter is used for width and the
426
 *  second one for precision.
1271 cejka 427
 *
428
 * TYPE:@n
429
 *  - "hh"  Signed or unsigned char.@n
2441 decky 430
 *  - "h"   Signed or unsigned short.@n
431
 *  - ""    Signed or unsigned int (default value).@n
432
 *  - "l"   Signed or unsigned long int.@n
433
 *  - "ll"  Signed or unsigned long long int.@n
1271 cejka 434
 *
435
 *
436
 * CONVERSION:@n
437
 *  - % Print percentile character itself.
438
 *
439
 *  - c Print single character.
440
 *
2572 jermar 441
 *  - s Print zero terminated string. If a NULL value is passed as
442
 *      value, "(NULL)" is printed instead.
1271 cejka 443
 *
2572 jermar 444
 *  - P, p  Print value of a pointer. Void * value is expected and it is
445
 *      printed in hexadecimal notation with prefix (as with \%#X / \%#x
446
 *      for 32-bit or \%#X / \%#x for 64-bit long pointers).
1271 cejka 447
 *
2572 jermar 448
 *  - b Print value as unsigned binary number. Prefix is not printed by
449
 *      default. (Nonstandard extension.)
1271 cejka 450
 *
2572 jermar 451
 *  - o Print value as unsigned octal number. Prefix is not printed by
452
 *      default.
1271 cejka 453
 *
2572 jermar 454
 *  - d, i  Print signed decimal number. There is no difference between d
455
 *      and i conversion.
1271 cejka 456
 *
457
 *  - u Print unsigned decimal number.
458
 *
2712 decky 459
 *  - X, x  Print hexadecimal number with upper- or lower-case. Prefix is
2572 jermar 460
 *      not printed by default.
1271 cejka 461
 *
2572 jermar 462
 * All other characters from fmt except the formatting directives are printed in
463
 * verbatim.
1271 cejka 464
 *
2572 jermar 465
 * @param fmt       Formatting NULL terminated string.
466
 * @return      Number of characters printed, negative value on failure.
1271 cejka 467
 */
468
int printf_core(const char *fmt, struct printf_spec *ps, va_list ap)
469
{
2572 jermar 470
    int i = 0; /* index of the currently processed char from fmt */
471
    int j = 0; /* index to the first not printed nonformating character */
1271 cejka 472
    int end;
2572 jermar 473
    int counter; /* counter of printed characters */
474
    int retval; /* used to store return values from called functions */
1271 cejka 475
    char c;
2572 jermar 476
    qualifier_t qualifier; /* type of argument */
477
    int base; /* base in which a numeric parameter will be printed */
478
    uint64_t number; /* argument value */
479
    size_t  size; /* byte size of integer parameter */
1271 cejka 480
    int width, precision;
1780 jermar 481
    uint64_t flags;
1271 cejka 482
 
483
    counter = 0;
2208 decky 484
 
1271 cejka 485
    while ((c = fmt[i])) {
486
        /* control character */
3058 decky 487
        if (c == '%') {
1271 cejka 488
            /* print common characters if any processed */ 
489
            if (i > j) {
2572 jermar 490
                if ((retval = printf_putnchars(&fmt[j],
491
                    (size_t)(i - j), ps)) < 0) { /* error */
1271 cejka 492
                    counter = -counter;
493
                    goto out;
494
                }
495
                counter += retval;
496
            }
497
 
498
            j = i;
499
            /* parse modifiers */
500
            flags = 0;
501
            end = 0;
502
 
503
            do {
504
                ++i;
505
                switch (c = fmt[i]) {
2572 jermar 506
                case '#':
507
                    flags |= __PRINTF_FLAG_PREFIX;
508
                    break;
509
                case '-':
510
                    flags |= __PRINTF_FLAG_LEFTALIGNED;
511
                    break;
512
                case '+':
513
                    flags |= __PRINTF_FLAG_SHOWPLUS;
514
                    break;
515
                case ' ':
516
                    flags |= __PRINTF_FLAG_SPACESIGN;
517
                    break;
518
                case '0':
519
                    flags |= __PRINTF_FLAG_ZEROPADDED;
520
                    break;
521
                default:
522
                    end = 1;
1271 cejka 523
                }; 
524
 
525
            } while (end == 0);
526
 
527
            /* width & '*' operator */
528
            width = 0;
529
            if (isdigit(fmt[i])) {
530
                while (isdigit(fmt[i])) {
531
                    width *= 10;
532
                    width += fmt[i++] - '0';
533
                }
534
            } else if (fmt[i] == '*') {
2572 jermar 535
                /* get width value from argument list */
1271 cejka 536
                i++;
3058 decky 537
                width = (int) va_arg(ap, int);
1271 cejka 538
                if (width < 0) {
2572 jermar 539
                    /* negative width sets '-' flag */
1271 cejka 540
                    width *= -1;
541
                    flags |= __PRINTF_FLAG_LEFTALIGNED;
542
                }
543
            }
544
 
545
            /* precision and '*' operator */   
546
            precision = 0;
547
            if (fmt[i] == '.') {
548
                ++i;
549
                if (isdigit(fmt[i])) {
550
                    while (isdigit(fmt[i])) {
551
                        precision *= 10;
552
                        precision += fmt[i++] - '0';
553
                    }
554
                } else if (fmt[i] == '*') {
2572 jermar 555
                    /*
556
                     * Get precision value from the argument
557
                     * list.
558
                     */
1271 cejka 559
                    i++;
3058 decky 560
                    precision = (int) va_arg(ap, int);
1271 cejka 561
                    if (precision < 0) {
2572 jermar 562
                        /* ignore negative precision */
1271 cejka 563
                        precision = 0;
564
                    }
565
                }
566
            }
567
 
568
            switch (fmt[i++]) {
2572 jermar 569
            /** @todo unimplemented qualifiers:
1888 jermar 570
             * t ptrdiff_t - ISO C 99
571
             */
572
            case 'h':   /* char or short */
573
                qualifier = PrintfQualifierShort;
574
                if (fmt[i] == 'h') {
575
                    i++;
576
                    qualifier = PrintfQualifierByte;
577
                }
578
                break;
579
            case 'l':   /* long or long long*/
580
                qualifier = PrintfQualifierLong;
581
                if (fmt[i] == 'l') {
582
                    i++;
583
                    qualifier = PrintfQualifierLongLong;
584
                }
585
                break;
586
            default:
2572 jermar 587
                /* default type */
588
                qualifier = PrintfQualifierInt;
1888 jermar 589
                --i;
1271 cejka 590
            }  
591
 
592
            base = 10;
593
 
594
            switch (c = fmt[i]) {
595
 
1888 jermar 596
            /*
597
            * String and character conversions.
598
            */
599
            case 's':
2572 jermar 600
                if ((retval = print_string(va_arg(ap, char *),
601
                    width, precision, flags, ps)) < 0) {
1888 jermar 602
                    counter = -counter;
603
                    goto out;
604
                };
605
 
606
                counter += retval;
607
                j = i + 1;
608
                goto next_char;
609
            case 'c':
610
                c = va_arg(ap, unsigned int);
2572 jermar 611
                retval = print_char(c, width, flags, ps);
612
                if (retval < 0) {
1888 jermar 613
                    counter = -counter;
614
                    goto out;
615
                };
1271 cejka 616
 
1888 jermar 617
                counter += retval;
618
                j = i + 1;
619
                goto next_char;
1271 cejka 620
 
1888 jermar 621
            /*
622
             * Integer values
623
             */
624
            case 'P': /* pointer */
3058 decky 625
                flags |= __PRINTF_FLAG_BIGCHARS;
1888 jermar 626
            case 'p':
627
                flags |= __PRINTF_FLAG_PREFIX;
628
                base = 16;
629
                qualifier = PrintfQualifierPointer;
630
                break; 
631
            case 'b':
632
                base = 2;
633
                break;
634
            case 'o':
635
                base = 8;
636
                break;
637
            case 'd':
638
            case 'i':
639
                flags |= __PRINTF_FLAG_SIGNED;  
640
            case 'u':
641
                break;
642
            case 'X':
643
                flags |= __PRINTF_FLAG_BIGCHARS;
644
            case 'x':
645
                base = 16;
646
                break;
647
            /* percentile itself */
648
            case '%':
649
                j = i;
650
                goto next_char;
651
            /*
652
             * Bad formatting.
653
             */
654
            default:
2572 jermar 655
                /*
656
                 * Unknown format. Now, j is the index of '%'
657
                 * so we will print whole bad format sequence.
1888 jermar 658
                 */
659
                goto next_char;    
1271 cejka 660
            }
661
 
662
 
663
        /* Print integers */
664
            /* print number */
665
            switch (qualifier) {
1888 jermar 666
            case PrintfQualifierByte:
667
                size = sizeof(unsigned char);
3058 decky 668
                number = (uint64_t) va_arg(ap, unsigned int);
1888 jermar 669
                break;
670
            case PrintfQualifierShort:
671
                size = sizeof(unsigned short);
3058 decky 672
                number = (uint64_t) va_arg(ap, unsigned int);
1888 jermar 673
                break;
674
            case PrintfQualifierInt:
675
                size = sizeof(unsigned int);
3058 decky 676
                number = (uint64_t) va_arg(ap, unsigned int);
1888 jermar 677
                break;
678
            case PrintfQualifierLong:
679
                size = sizeof(unsigned long);
3058 decky 680
                number = (uint64_t) va_arg(ap, unsigned long);
1888 jermar 681
                break;
682
            case PrintfQualifierLongLong:
683
                size = sizeof(unsigned long long);
3058 decky 684
                number = (uint64_t) va_arg(ap, unsigned long long);
1888 jermar 685
                break;
686
            case PrintfQualifierPointer:
687
                size = sizeof(void *);
3058 decky 688
                number = (uint64_t) (unsigned long) va_arg(ap, void *);
1888 jermar 689
                break;
690
            default: /* Unknown qualifier */
691
                counter = -counter;
692
                goto out;
1271 cejka 693
            }
694
 
695
            if (flags & __PRINTF_FLAG_SIGNED) {
2572 jermar 696
                if (number & (0x1 << (size * 8 - 1))) {
1271 cejka 697
                    flags |= __PRINTF_FLAG_NEGATIVE;
698
 
1780 jermar 699
                    if (size == sizeof(uint64_t)) {
3058 decky 700
                        number = -((int64_t) number);
1271 cejka 701
                    } else {
702
                        number = ~number;
2572 jermar 703
                        number &=
704
                            ~(0xFFFFFFFFFFFFFFFFll <<
705
                            (size * 8));
1271 cejka 706
                        number++;
707
                    }
708
                }
709
            }
710
 
2572 jermar 711
            if ((retval = print_number(number, width, precision,
712
                base, flags, ps)) < 0) {
1271 cejka 713
                counter = -counter;
714
                goto out;
2572 jermar 715
            }
1271 cejka 716
 
717
            counter += retval;
718
            j = i + 1;
719
        }  
720
next_char:
721
 
722
        ++i;
723
    }
724
 
725
    if (i > j) {
3058 decky 726
        if ((retval = printf_putnchars(&fmt[j], (unative_t) (i - j),
2572 jermar 727
            ps)) < 0) { /* error */
1271 cejka 728
            counter = -counter;
729
            goto out;
730
 
731
        }
732
        counter += retval;
733
    }
734
 
735
out:
736
    return counter;
737
}
738
 
1888 jermar 739
/** @}
1702 cejka 740
 */