| /* Parsing C format strings. |
| Copyright (C) 2001-2004, 2006-2007, 2009-2010, 2018, 2020 Free Software |
| Foundation, Inc. |
| Written by Bruno Haible <haible@clisp.cons.org>, 2001. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| |
| /* C format strings are described in POSIX (IEEE P1003.1 2001), section |
| XSH 3 fprintf(). See also Linux fprintf(3) manual page. |
| A directive |
| - starts with '%' or '%m$' where m is a positive integer, |
| - is optionally followed by any of the characters '#', '0', '-', ' ', '+', |
| "'", or - only in msgstr strings - the string "I", each of which acts as |
| a flag, |
| - is optionally followed by a width specification: '*' (reads an argument) |
| or '*m$' or a nonempty digit sequence, |
| - is optionally followed by '.' and a precision specification: '*' (reads |
| an argument) or '*m$' or a nonempty digit sequence, |
| - is either continued like this: |
| - is optionally followed by a size specifier, one of 'hh' 'h' 'l' 'll' |
| 'L' 'q' 'j' 'z' 't', |
| - is finished by a specifier |
| - '%', that needs no argument, |
| - 'c', 'C', that need a character argument, |
| - 's', 'S', that need a string argument, |
| - 'i', 'd', that need a signed integer argument, |
| - 'o', 'u', 'x', 'X', that need an unsigned integer argument, |
| - 'e', 'E', 'f', 'F', 'g', 'G', 'a', 'A', that need a floating-point |
| argument, |
| - 'p', that needs a 'void *' argument, |
| - 'n', that needs a pointer to integer. |
| or is finished by a specifier '<' inttypes-macro '>' where inttypes-macro |
| is an ISO C 99 section 7.8.1 format directive. |
| Numbered ('%m$' or '*m$') and unnumbered argument specifications cannot |
| be used in the same string. When numbered argument specifications are |
| used, specifying the Nth argument requires that all the leading arguments, |
| from the first to the (N-1)th, are specified in the format string. |
| */ |
| |
| enum format_arg_type |
| { |
| FAT_NONE = 0, |
| /* Basic types */ |
| FAT_INTEGER = 1, |
| FAT_DOUBLE = 2, |
| FAT_CHAR = 3, |
| FAT_STRING = 4, |
| FAT_OBJC_OBJECT = 5, |
| FAT_POINTER = 6, |
| FAT_COUNT_POINTER = 7, |
| /* Flags */ |
| FAT_UNSIGNED = 1 << 3, |
| FAT_SIZE_SHORT = 1 << 4, |
| FAT_SIZE_CHAR = 2 << 4, |
| FAT_SIZE_LONG = 1 << 6, |
| FAT_SIZE_LONGLONG = 2 << 6, |
| FAT_SIZE_8_T = 1 << 8, |
| FAT_SIZE_16_T = 1 << 9, |
| FAT_SIZE_32_T = 1 << 10, |
| FAT_SIZE_64_T = 1 << 11, |
| FAT_SIZE_LEAST8_T = 1 << 12, |
| FAT_SIZE_LEAST16_T = 1 << 13, |
| FAT_SIZE_LEAST32_T = 1 << 14, |
| FAT_SIZE_LEAST64_T = 1 << 15, |
| FAT_SIZE_FAST8_T = 1 << 16, |
| FAT_SIZE_FAST16_T = 1 << 17, |
| FAT_SIZE_FAST32_T = 1 << 18, |
| FAT_SIZE_FAST64_T = 1 << 19, |
| FAT_SIZE_INTMAX_T = 1 << 20, |
| FAT_SIZE_INTPTR_T = 1 << 21, |
| FAT_SIZE_SIZE_T = 1 << 22, |
| FAT_SIZE_PTRDIFF_T = 1 << 23, |
| FAT_WIDE = FAT_SIZE_LONG, |
| /* Meaningful combinations of basic types and flags: |
| 'signed char' = FAT_INTEGER | FAT_SIZE_CHAR, |
| 'unsigned char' = FAT_INTEGER | FAT_SIZE_CHAR | FAT_UNSIGNED, |
| 'short' = FAT_INTEGER | FAT_SIZE_SHORT, |
| 'unsigned short' = FAT_INTEGER | FAT_SIZE_SHORT | FAT_UNSIGNED, |
| 'int' = FAT_INTEGER, |
| 'unsigned int' = FAT_INTEGER | FAT_UNSIGNED, |
| 'long int' = FAT_INTEGER | FAT_SIZE_LONG, |
| 'unsigned long int' = FAT_INTEGER | FAT_SIZE_LONG | FAT_UNSIGNED, |
| 'long long int' = FAT_INTEGER | FAT_SIZE_LONGLONG, |
| 'unsigned long long int' = FAT_INTEGER | FAT_SIZE_LONGLONG | FAT_UNSIGNED, |
| 'double' = FAT_DOUBLE, |
| 'long double' = FAT_DOUBLE | FAT_SIZE_LONGLONG, |
| 'char'/'int' = FAT_CHAR, |
| 'wchar_t'/'wint_t' = FAT_CHAR | FAT_SIZE_LONG, |
| 'const char *' = FAT_STRING, |
| 'const wchar_t *' = FAT_STRING | FAT_SIZE_LONG, |
| 'void *' = FAT_POINTER, |
| FAT_COUNT_SCHAR_POINTER = FAT_COUNT_POINTER | FAT_SIZE_CHAR, |
| FAT_COUNT_SHORT_POINTER = FAT_COUNT_POINTER | FAT_SIZE_SHORT, |
| FAT_COUNT_INT_POINTER = FAT_COUNT_POINTER, |
| FAT_COUNT_LONGINT_POINTER = FAT_COUNT_POINTER | FAT_SIZE_LONG, |
| FAT_COUNT_LONGLONGINT_POINTER = FAT_COUNT_POINTER | FAT_SIZE_LONGLONG, |
| */ |
| /* Bitmasks */ |
| FAT_BASIC_MASK = (FAT_INTEGER | FAT_DOUBLE | FAT_CHAR | FAT_STRING |
| | FAT_OBJC_OBJECT | FAT_POINTER | FAT_COUNT_POINTER), |
| FAT_SIZE_MASK = (FAT_SIZE_SHORT | FAT_SIZE_CHAR |
| | FAT_SIZE_LONG | FAT_SIZE_LONGLONG |
| | FAT_SIZE_8_T | FAT_SIZE_16_T |
| | FAT_SIZE_32_T | FAT_SIZE_64_T |
| | FAT_SIZE_LEAST8_T | FAT_SIZE_LEAST16_T |
| | FAT_SIZE_LEAST32_T | FAT_SIZE_LEAST64_T |
| | FAT_SIZE_FAST8_T | FAT_SIZE_FAST16_T |
| | FAT_SIZE_FAST32_T | FAT_SIZE_FAST64_T |
| | FAT_SIZE_INTMAX_T | FAT_SIZE_INTPTR_T |
| | FAT_SIZE_SIZE_T | FAT_SIZE_PTRDIFF_T) |
| }; |
| #ifdef __cplusplus |
| typedef int format_arg_type_t; |
| #else |
| typedef enum format_arg_type format_arg_type_t; |
| #endif |
| |
| struct numbered_arg |
| { |
| unsigned int number; |
| format_arg_type_t type; |
| }; |
| |
| struct unnumbered_arg |
| { |
| format_arg_type_t type; |
| }; |
| |
| struct spec |
| { |
| unsigned int directives; |
| unsigned int unnumbered_arg_count; |
| struct unnumbered_arg *unnumbered; |
| bool unlikely_intentional; |
| unsigned int sysdep_directives_count; |
| const char **sysdep_directives; |
| }; |
| |
| /* Locale independent test for a decimal digit. |
| Argument can be 'char' or 'unsigned char'. (Whereas the argument of |
| <ctype.h> isdigit must be an 'unsigned char'.) */ |
| #undef isdigit |
| #define isdigit(c) ((unsigned int) ((c) - '0') < 10) |
| |
| /* Whether to recognize the 'I' flag. */ |
| #if SYSDEP_SEGMENTS_PROCESSED |
| /* The 'I' flag can only occur in glibc >= 2.2. On other platforms, gettext() |
| filters it away even if it is present in the msgstr in the .mo file. */ |
| # define HANDLE_I_FLAG \ |
| ((__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)) \ |
| && !defined __UCLIBC__) |
| #else |
| # define HANDLE_I_FLAG 1 |
| #endif |
| |
| |
| static int |
| numbered_arg_compare (const void *p1, const void *p2) |
| { |
| unsigned int n1 = ((const struct numbered_arg *) p1)->number; |
| unsigned int n2 = ((const struct numbered_arg *) p2)->number; |
| |
| return (n1 > n2 ? 1 : n1 < n2 ? -1 : 0); |
| } |
| |
| static struct spec * |
| format_parse_entrails (const char *format, bool translated, |
| bool objc_extensions, char *fdi, char **invalid_reason, |
| struct spec *result) |
| { |
| const char *const format_start = format; |
| struct spec spec; |
| unsigned int numbered_arg_count; |
| struct numbered_arg *numbered; |
| unsigned int allocated; |
| |
| spec.directives = 0; |
| spec.unnumbered_arg_count = 0; |
| spec.unnumbered = NULL; |
| spec.unlikely_intentional = false; |
| spec.sysdep_directives_count = 0; |
| spec.sysdep_directives = NULL; |
| numbered_arg_count = 0; |
| numbered = NULL; |
| allocated = 0; |
| |
| for (; *format != '\0';) |
| if (*format++ == '%') |
| { |
| /* A directive. */ |
| unsigned int number = 0; |
| format_arg_type_t type; |
| format_arg_type_t size; |
| |
| FDI_SET (format - 1, FMTDIR_START); |
| spec.directives++; |
| |
| if (isdigit (*format)) |
| { |
| const char *f = format; |
| unsigned int m = 0; |
| |
| do |
| { |
| m = 10 * m + (*f - '0'); |
| f++; |
| } |
| while (isdigit (*f)); |
| |
| if (*f == '$') |
| { |
| if (m == 0) |
| { |
| *invalid_reason = INVALID_ARGNO_0 (spec.directives); |
| FDI_SET (f, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| number = m; |
| format = ++f; |
| } |
| } |
| |
| /* Parse flags. */ |
| for (;;) |
| { |
| if (*format == ' ' || *format == '+' || *format == '-' |
| || *format == '#' || *format == '0' || *format == '\'') |
| format++; |
| #if HANDLE_I_FLAG |
| else if (translated && *format == 'I') |
| { |
| spec.sysdep_directives = |
| (const char **) |
| xrealloc (spec.sysdep_directives, |
| 2 * (spec.sysdep_directives_count + 1) |
| * sizeof (const char *)); |
| IF_OOM (spec.sysdep_directives, goto bad_format;) |
| spec.sysdep_directives[2 * spec.sysdep_directives_count] = format; |
| spec.sysdep_directives[2 * spec.sysdep_directives_count + 1] = format + 1; |
| spec.sysdep_directives_count++; |
| format++; |
| } |
| #endif |
| else |
| break; |
| } |
| |
| /* Parse width. */ |
| if (*format == '*') |
| { |
| unsigned int width_number = 0; |
| |
| format++; |
| |
| if (isdigit (*format)) |
| { |
| const char *f = format; |
| unsigned int m = 0; |
| |
| do |
| { |
| m = 10 * m + (*f - '0'); |
| f++; |
| } |
| while (isdigit (*f)); |
| |
| if (*f == '$') |
| { |
| if (m == 0) |
| { |
| *invalid_reason = |
| INVALID_WIDTH_ARGNO_0 (spec.directives); |
| FDI_SET (f, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| width_number = m; |
| format = ++f; |
| } |
| } |
| |
| if (width_number) |
| { |
| /* Numbered argument. */ |
| |
| /* Numbered and unnumbered specifications are exclusive. */ |
| if (spec.unnumbered_arg_count > 0) |
| { |
| *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED (); |
| FDI_SET (format - 1, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| |
| if (allocated == numbered_arg_count) |
| { |
| allocated = 2 * allocated + 1; |
| numbered = (struct numbered_arg *) xrealloc (numbered, allocated * sizeof (struct numbered_arg)); |
| IF_OOM (numbered, goto bad_format;) |
| } |
| numbered[numbered_arg_count].number = width_number; |
| numbered[numbered_arg_count].type = FAT_INTEGER; |
| numbered_arg_count++; |
| } |
| else |
| { |
| /* Unnumbered argument. */ |
| |
| /* Numbered and unnumbered specifications are exclusive. */ |
| if (numbered_arg_count > 0) |
| { |
| *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED (); |
| FDI_SET (format - 1, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| |
| if (allocated == spec.unnumbered_arg_count) |
| { |
| allocated = 2 * allocated + 1; |
| spec.unnumbered = (struct unnumbered_arg *) xrealloc (spec.unnumbered, allocated * sizeof (struct unnumbered_arg)); |
| IF_OOM (spec.unnumbered, goto bad_format;) |
| } |
| spec.unnumbered[spec.unnumbered_arg_count].type = FAT_INTEGER; |
| spec.unnumbered_arg_count++; |
| } |
| } |
| else if (isdigit (*format)) |
| { |
| do format++; while (isdigit (*format)); |
| } |
| |
| /* Parse precision. */ |
| if (*format == '.') |
| { |
| format++; |
| |
| if (*format == '*') |
| { |
| unsigned int precision_number = 0; |
| |
| format++; |
| |
| if (isdigit (*format)) |
| { |
| const char *f = format; |
| unsigned int m = 0; |
| |
| do |
| { |
| m = 10 * m + (*f - '0'); |
| f++; |
| } |
| while (isdigit (*f)); |
| |
| if (*f == '$') |
| { |
| if (m == 0) |
| { |
| *invalid_reason = |
| INVALID_PRECISION_ARGNO_0 (spec.directives); |
| FDI_SET (f, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| precision_number = m; |
| format = ++f; |
| } |
| } |
| |
| if (precision_number) |
| { |
| /* Numbered argument. */ |
| |
| /* Numbered and unnumbered specifications are exclusive. */ |
| if (spec.unnumbered_arg_count > 0) |
| { |
| *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED (); |
| FDI_SET (format - 1, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| |
| if (allocated == numbered_arg_count) |
| { |
| allocated = 2 * allocated + 1; |
| numbered = (struct numbered_arg *) xrealloc (numbered, allocated * sizeof (struct numbered_arg)); |
| IF_OOM (numbered, goto bad_format;) |
| } |
| numbered[numbered_arg_count].number = precision_number; |
| numbered[numbered_arg_count].type = FAT_INTEGER; |
| numbered_arg_count++; |
| } |
| else |
| { |
| /* Unnumbered argument. */ |
| |
| /* Numbered and unnumbered specifications are exclusive. */ |
| if (numbered_arg_count > 0) |
| { |
| *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED (); |
| FDI_SET (format - 1, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| |
| if (allocated == spec.unnumbered_arg_count) |
| { |
| allocated = 2 * allocated + 1; |
| spec.unnumbered = (struct unnumbered_arg *) xrealloc (spec.unnumbered, allocated * sizeof (struct unnumbered_arg)); |
| IF_OOM (spec.unnumbered, goto bad_format;) |
| } |
| spec.unnumbered[spec.unnumbered_arg_count].type = FAT_INTEGER; |
| spec.unnumbered_arg_count++; |
| } |
| } |
| else if (isdigit (*format)) |
| { |
| do format++; while (isdigit (*format)); |
| } |
| } |
| |
| if (!SYSDEP_SEGMENTS_PROCESSED && *format == '<') |
| { |
| spec.sysdep_directives = |
| (const char **) |
| xrealloc (spec.sysdep_directives, |
| 2 * (spec.sysdep_directives_count + 1) |
| * sizeof (const char *)); |
| IF_OOM (spec.sysdep_directives, goto bad_format;) |
| spec.sysdep_directives[2 * spec.sysdep_directives_count] = format; |
| |
| format++; |
| /* Parse ISO C 99 section 7.8.1 format string directive. |
| Syntax: |
| P R I { d | i | o | u | x | X } |
| { { | LEAST | FAST } { 8 | 16 | 32 | 64 } | MAX | PTR } */ |
| if (*format != 'P') |
| { |
| *invalid_reason = INVALID_C99_MACRO (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| format++; |
| if (*format != 'R') |
| { |
| *invalid_reason = INVALID_C99_MACRO (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| format++; |
| if (*format != 'I') |
| { |
| *invalid_reason = INVALID_C99_MACRO (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| format++; |
| |
| switch (*format) |
| { |
| case 'i': case 'd': |
| type = FAT_INTEGER; |
| break; |
| case 'u': case 'o': case 'x': case 'X': |
| type = FAT_INTEGER | FAT_UNSIGNED; |
| break; |
| default: |
| *invalid_reason = INVALID_C99_MACRO (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| format++; |
| |
| if (format[0] == 'M' && format[1] == 'A' && format[2] == 'X') |
| { |
| type |= FAT_SIZE_INTMAX_T; |
| format += 3; |
| } |
| else if (format[0] == 'P' && format[1] == 'T' && format[2] == 'R') |
| { |
| type |= FAT_SIZE_INTPTR_T; |
| format += 3; |
| } |
| else |
| { |
| if (format[0] == 'L' && format[1] == 'E' && format[2] == 'A' |
| && format[3] == 'S' && format[4] == 'T') |
| { |
| format += 5; |
| if (format[0] == '8') |
| { |
| type |= FAT_SIZE_LEAST8_T; |
| format++; |
| } |
| else if (format[0] == '1' && format[1] == '6') |
| { |
| type |= FAT_SIZE_LEAST16_T; |
| format += 2; |
| } |
| else if (format[0] == '3' && format[1] == '2') |
| { |
| type |= FAT_SIZE_LEAST32_T; |
| format += 2; |
| } |
| else if (format[0] == '6' && format[1] == '4') |
| { |
| type |= FAT_SIZE_LEAST64_T; |
| format += 2; |
| } |
| else |
| { |
| *invalid_reason = INVALID_C99_MACRO (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, |
| FMTDIR_ERROR); |
| goto bad_format; |
| } |
| } |
| else if (format[0] == 'F' && format[1] == 'A' |
| && format[2] == 'S' && format[3] == 'T') |
| { |
| format += 4; |
| if (format[0] == '8') |
| { |
| type |= FAT_SIZE_FAST8_T; |
| format++; |
| } |
| else if (format[0] == '1' && format[1] == '6') |
| { |
| type |= FAT_SIZE_FAST16_T; |
| format += 2; |
| } |
| else if (format[0] == '3' && format[1] == '2') |
| { |
| type |= FAT_SIZE_FAST32_T; |
| format += 2; |
| } |
| else if (format[0] == '6' && format[1] == '4') |
| { |
| type |= FAT_SIZE_FAST64_T; |
| format += 2; |
| } |
| else |
| { |
| *invalid_reason = INVALID_C99_MACRO (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, |
| FMTDIR_ERROR); |
| goto bad_format; |
| } |
| } |
| else |
| { |
| if (format[0] == '8') |
| { |
| type |= FAT_SIZE_8_T; |
| format++; |
| } |
| else if (format[0] == '1' && format[1] == '6') |
| { |
| type |= FAT_SIZE_16_T; |
| format += 2; |
| } |
| else if (format[0] == '3' && format[1] == '2') |
| { |
| type |= FAT_SIZE_32_T; |
| format += 2; |
| } |
| else if (format[0] == '6' && format[1] == '4') |
| { |
| type |= FAT_SIZE_64_T; |
| format += 2; |
| } |
| else |
| { |
| *invalid_reason = INVALID_C99_MACRO (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, |
| FMTDIR_ERROR); |
| goto bad_format; |
| } |
| } |
| } |
| |
| if (*format != '>') |
| { |
| *invalid_reason = INVALID_ANGLE_BRACKET (spec.directives); |
| FDI_SET (*format == '\0' ? format - 1 : format, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| |
| spec.sysdep_directives[2 * spec.sysdep_directives_count + 1] = format + 1; |
| spec.sysdep_directives_count++; |
| } |
| else |
| { |
| /* Parse size. */ |
| size = 0; |
| for (;; format++) |
| { |
| if (*format == 'h') |
| { |
| if (size & (FAT_SIZE_SHORT | FAT_SIZE_CHAR)) |
| size = FAT_SIZE_CHAR; |
| else |
| size = FAT_SIZE_SHORT; |
| } |
| else if (*format == 'l') |
| { |
| if (size & (FAT_SIZE_LONG | FAT_SIZE_LONGLONG)) |
| size = FAT_SIZE_LONGLONG; |
| else |
| size = FAT_SIZE_LONG; |
| } |
| else if (*format == 'L') |
| size = FAT_SIZE_LONGLONG; |
| else if (*format == 'q') |
| /* Old BSD 4.4 convention. */ |
| size = FAT_SIZE_LONGLONG; |
| else if (*format == 'j') |
| size = FAT_SIZE_INTMAX_T; |
| else if (*format == 'z' || *format == 'Z') |
| /* 'z' is standardized in ISO C 99, but glibc uses 'Z' |
| because the warning facility in gcc-2.95.2 understands |
| only 'Z' (see gcc-2.95.2/gcc/c-common.c:1784). */ |
| size = FAT_SIZE_SIZE_T; |
| else if (*format == 't') |
| size = FAT_SIZE_PTRDIFF_T; |
| #if defined _WIN32 && ! defined __CYGWIN__ |
| else if (SYSDEP_SEGMENTS_PROCESSED |
| && *format == 'I' |
| && format[1] == '6' |
| && format[2] == '4') |
| { |
| size = FAT_SIZE_64_T; |
| format += 2; |
| } |
| #endif |
| else |
| break; |
| } |
| |
| switch (*format) |
| { |
| case '%': |
| /* Programmers writing _("%2%") most often will not want to |
| use this string as a c-format string, but rather as a |
| literal or as a different kind of format string. */ |
| if (format[-1] != '%') |
| spec.unlikely_intentional = true; |
| type = FAT_NONE; |
| break; |
| case 'm': /* glibc extension */ |
| type = FAT_NONE; |
| break; |
| case 'c': |
| type = FAT_CHAR; |
| type |= (size & (FAT_SIZE_LONG | FAT_SIZE_LONGLONG) |
| ? FAT_WIDE : 0); |
| break; |
| case 'C': /* obsolete */ |
| type = FAT_CHAR | FAT_WIDE; |
| break; |
| case 's': |
| type = FAT_STRING; |
| type |= (size & (FAT_SIZE_LONG | FAT_SIZE_LONGLONG) |
| ? FAT_WIDE : 0); |
| break; |
| case 'S': /* obsolete */ |
| type = FAT_STRING | FAT_WIDE; |
| break; |
| case 'i': case 'd': |
| type = FAT_INTEGER; |
| type |= (size & FAT_SIZE_MASK); |
| break; |
| case 'u': case 'o': case 'x': case 'X': |
| type = FAT_INTEGER | FAT_UNSIGNED; |
| type |= (size & FAT_SIZE_MASK); |
| break; |
| case 'e': case 'E': case 'f': case 'F': case 'g': case 'G': |
| case 'a': case 'A': |
| type = FAT_DOUBLE; |
| type |= (size & FAT_SIZE_LONGLONG); |
| break; |
| case '@': |
| if (objc_extensions) |
| { |
| type = FAT_OBJC_OBJECT; |
| break; |
| } |
| goto other; |
| case 'p': |
| type = FAT_POINTER; |
| break; |
| case 'n': |
| type = FAT_COUNT_POINTER; |
| type |= (size & FAT_SIZE_MASK); |
| break; |
| other: |
| default: |
| if (*format == '\0') |
| { |
| *invalid_reason = INVALID_UNTERMINATED_DIRECTIVE (); |
| FDI_SET (format - 1, FMTDIR_ERROR); |
| } |
| else |
| { |
| *invalid_reason = |
| INVALID_CONVERSION_SPECIFIER (spec.directives, *format); |
| FDI_SET (format, FMTDIR_ERROR); |
| } |
| goto bad_format; |
| } |
| } |
| |
| if (type != FAT_NONE) |
| { |
| if (number) |
| { |
| /* Numbered argument. */ |
| |
| /* Numbered and unnumbered specifications are exclusive. */ |
| if (spec.unnumbered_arg_count > 0) |
| { |
| *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED (); |
| FDI_SET (format, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| |
| if (allocated == numbered_arg_count) |
| { |
| allocated = 2 * allocated + 1; |
| numbered = (struct numbered_arg *) xrealloc (numbered, allocated * sizeof (struct numbered_arg)); |
| IF_OOM (numbered, goto bad_format;) |
| } |
| numbered[numbered_arg_count].number = number; |
| numbered[numbered_arg_count].type = type; |
| numbered_arg_count++; |
| } |
| else |
| { |
| /* Unnumbered argument. */ |
| |
| /* Numbered and unnumbered specifications are exclusive. */ |
| if (numbered_arg_count > 0) |
| { |
| *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED (); |
| FDI_SET (format, FMTDIR_ERROR); |
| goto bad_format; |
| } |
| |
| if (allocated == spec.unnumbered_arg_count) |
| { |
| allocated = 2 * allocated + 1; |
| spec.unnumbered = (struct unnumbered_arg *) xrealloc (spec.unnumbered, allocated * sizeof (struct unnumbered_arg)); |
| IF_OOM (spec.unnumbered, goto bad_format;) |
| } |
| spec.unnumbered[spec.unnumbered_arg_count].type = type; |
| spec.unnumbered_arg_count++; |
| } |
| } |
| |
| FDI_SET (format, FMTDIR_END); |
| |
| format++; |
| } |
| |
| /* Sort the numbered argument array, and eliminate duplicates. */ |
| if (numbered_arg_count > 1) |
| { |
| unsigned int i, j; |
| bool err; |
| |
| qsort (numbered, numbered_arg_count, |
| sizeof (struct numbered_arg), numbered_arg_compare); |
| |
| /* Remove duplicates: Copy from i to j, keeping 0 <= j <= i. */ |
| err = false; |
| for (i = j = 0; i < numbered_arg_count; i++) |
| if (j > 0 && numbered[i].number == numbered[j-1].number) |
| { |
| format_arg_type_t type1 = numbered[i].type; |
| format_arg_type_t type2 = numbered[j-1].type; |
| format_arg_type_t type_both; |
| |
| if (type1 == type2) |
| type_both = type1; |
| else |
| { |
| /* Incompatible types. */ |
| type_both = FAT_NONE; |
| if (!err) |
| *invalid_reason = |
| INVALID_INCOMPATIBLE_ARG_TYPES (numbered[i].number); |
| err = true; |
| } |
| |
| numbered[j-1].type = type_both; |
| } |
| else |
| { |
| if (j < i) |
| { |
| numbered[j].number = numbered[i].number; |
| numbered[j].type = numbered[i].type; |
| } |
| j++; |
| } |
| numbered_arg_count = j; |
| if (err) |
| /* *invalid_reason has already been set above. */ |
| goto bad_format; |
| } |
| |
| /* Verify that the format strings uses all arguments up to the highest |
| numbered one. */ |
| if (numbered_arg_count > 0) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < numbered_arg_count; i++) |
| if (numbered[i].number != i + 1) |
| { |
| *invalid_reason = INVALID_IGNORED_ARGUMENT (numbered[i].number, i + 1); |
| goto bad_format; |
| } |
| |
| /* So now the numbered arguments array is equivalent to a sequence |
| of unnumbered arguments. */ |
| spec.unnumbered_arg_count = numbered_arg_count; |
| allocated = spec.unnumbered_arg_count; |
| spec.unnumbered = XNMALLOC (allocated, struct unnumbered_arg); |
| IF_OOM (spec.unnumbered, goto bad_format;) |
| for (i = 0; i < spec.unnumbered_arg_count; i++) |
| spec.unnumbered[i].type = numbered[i].type; |
| free (numbered); |
| numbered_arg_count = 0; |
| } |
| |
| *result = spec; |
| return result; |
| |
| bad_format: |
| if (numbered != NULL) |
| free (numbered); |
| if (spec.unnumbered != NULL) |
| free (spec.unnumbered); |
| if (spec.sysdep_directives != NULL) |
| free (spec.sysdep_directives); |
| return NULL; |
| } |
