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c4b681fd LC |
1 | /* Decomposed printf argument list. |
2 | Copyright (C) 1999, 2002-2003, 2005-2007 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU Lesser General Public License as published by | |
6 | the Free Software Foundation; either version 2, or (at your option) | |
7 | any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public License along | |
15 | with this program; if not, write to the Free Software Foundation, | |
16 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
17 | ||
18 | /* This file can be parametrized with the following macros: | |
19 | ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions. | |
20 | PRINTF_FETCHARGS Name of the function to be defined. | |
21 | STATIC Set to 'static' to declare the function static. */ | |
22 | ||
23 | #ifndef PRINTF_FETCHARGS | |
24 | # include <config.h> | |
25 | #endif | |
26 | ||
27 | /* Specification. */ | |
28 | #ifndef PRINTF_FETCHARGS | |
29 | # include "printf-args.h" | |
30 | #endif | |
31 | ||
32 | #ifdef STATIC | |
33 | STATIC | |
34 | #endif | |
35 | int | |
36 | PRINTF_FETCHARGS (va_list args, arguments *a) | |
37 | { | |
38 | size_t i; | |
39 | argument *ap; | |
40 | ||
41 | for (i = 0, ap = &a->arg[0]; i < a->count; i++, ap++) | |
42 | switch (ap->type) | |
43 | { | |
44 | case TYPE_SCHAR: | |
45 | ap->a.a_schar = va_arg (args, /*signed char*/ int); | |
46 | break; | |
47 | case TYPE_UCHAR: | |
48 | ap->a.a_uchar = va_arg (args, /*unsigned char*/ int); | |
49 | break; | |
50 | case TYPE_SHORT: | |
51 | ap->a.a_short = va_arg (args, /*short*/ int); | |
52 | break; | |
53 | case TYPE_USHORT: | |
54 | ap->a.a_ushort = va_arg (args, /*unsigned short*/ int); | |
55 | break; | |
56 | case TYPE_INT: | |
57 | ap->a.a_int = va_arg (args, int); | |
58 | break; | |
59 | case TYPE_UINT: | |
60 | ap->a.a_uint = va_arg (args, unsigned int); | |
61 | break; | |
62 | case TYPE_LONGINT: | |
63 | ap->a.a_longint = va_arg (args, long int); | |
64 | break; | |
65 | case TYPE_ULONGINT: | |
66 | ap->a.a_ulongint = va_arg (args, unsigned long int); | |
67 | break; | |
68 | #if HAVE_LONG_LONG_INT | |
69 | case TYPE_LONGLONGINT: | |
70 | ap->a.a_longlongint = va_arg (args, long long int); | |
71 | break; | |
72 | case TYPE_ULONGLONGINT: | |
73 | ap->a.a_ulonglongint = va_arg (args, unsigned long long int); | |
74 | break; | |
75 | #endif | |
76 | case TYPE_DOUBLE: | |
77 | ap->a.a_double = va_arg (args, double); | |
78 | break; | |
79 | case TYPE_LONGDOUBLE: | |
80 | ap->a.a_longdouble = va_arg (args, long double); | |
81 | break; | |
82 | case TYPE_CHAR: | |
83 | ap->a.a_char = va_arg (args, int); | |
84 | break; | |
85 | #if HAVE_WINT_T | |
86 | case TYPE_WIDE_CHAR: | |
87 | /* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by | |
88 | default argument promotions", this is not the case in mingw32, | |
89 | where wint_t is 'unsigned short'. */ | |
90 | ap->a.a_wide_char = | |
91 | (sizeof (wint_t) < sizeof (int) | |
92 | ? va_arg (args, int) | |
93 | : va_arg (args, wint_t)); | |
94 | break; | |
95 | #endif | |
96 | case TYPE_STRING: | |
97 | ap->a.a_string = va_arg (args, const char *); | |
98 | /* A null pointer is an invalid argument for "%s", but in practice | |
99 | it occurs quite frequently in printf statements that produce | |
100 | debug output. Use a fallback in this case. */ | |
101 | if (ap->a.a_string == NULL) | |
102 | ap->a.a_string = "(NULL)"; | |
103 | break; | |
104 | #if HAVE_WCHAR_T | |
105 | case TYPE_WIDE_STRING: | |
106 | ap->a.a_wide_string = va_arg (args, const wchar_t *); | |
107 | /* A null pointer is an invalid argument for "%ls", but in practice | |
108 | it occurs quite frequently in printf statements that produce | |
109 | debug output. Use a fallback in this case. */ | |
110 | if (ap->a.a_wide_string == NULL) | |
111 | { | |
112 | static const wchar_t wide_null_string[] = | |
113 | { | |
114 | (wchar_t)'(', | |
115 | (wchar_t)'N', (wchar_t)'U', (wchar_t)'L', (wchar_t)'L', | |
116 | (wchar_t)')', | |
117 | (wchar_t)0 | |
118 | }; | |
119 | ap->a.a_wide_string = wide_null_string; | |
120 | } | |
121 | break; | |
122 | #endif | |
123 | case TYPE_POINTER: | |
124 | ap->a.a_pointer = va_arg (args, void *); | |
125 | break; | |
126 | case TYPE_COUNT_SCHAR_POINTER: | |
127 | ap->a.a_count_schar_pointer = va_arg (args, signed char *); | |
128 | break; | |
129 | case TYPE_COUNT_SHORT_POINTER: | |
130 | ap->a.a_count_short_pointer = va_arg (args, short *); | |
131 | break; | |
132 | case TYPE_COUNT_INT_POINTER: | |
133 | ap->a.a_count_int_pointer = va_arg (args, int *); | |
134 | break; | |
135 | case TYPE_COUNT_LONGINT_POINTER: | |
136 | ap->a.a_count_longint_pointer = va_arg (args, long int *); | |
137 | break; | |
138 | #if HAVE_LONG_LONG_INT | |
139 | case TYPE_COUNT_LONGLONGINT_POINTER: | |
140 | ap->a.a_count_longlongint_pointer = va_arg (args, long long int *); | |
141 | break; | |
142 | #endif | |
143 | #if ENABLE_UNISTDIO | |
144 | /* The unistdio extensions. */ | |
145 | case TYPE_U8_STRING: | |
146 | ap->a.a_u8_string = va_arg (args, const uint8_t *); | |
147 | /* A null pointer is an invalid argument for "%U", but in practice | |
148 | it occurs quite frequently in printf statements that produce | |
149 | debug output. Use a fallback in this case. */ | |
150 | if (ap->a.a_u8_string == NULL) | |
151 | { | |
152 | static const uint8_t u8_null_string[] = | |
153 | { '(', 'N', 'U', 'L', 'L', ')', 0 }; | |
154 | ap->a.a_u8_string = u8_null_string; | |
155 | } | |
156 | break; | |
157 | case TYPE_U16_STRING: | |
158 | ap->a.a_u16_string = va_arg (args, const uint16_t *); | |
159 | /* A null pointer is an invalid argument for "%lU", but in practice | |
160 | it occurs quite frequently in printf statements that produce | |
161 | debug output. Use a fallback in this case. */ | |
162 | if (ap->a.a_u16_string == NULL) | |
163 | { | |
164 | static const uint16_t u16_null_string[] = | |
165 | { '(', 'N', 'U', 'L', 'L', ')', 0 }; | |
166 | ap->a.a_u16_string = u16_null_string; | |
167 | } | |
168 | break; | |
169 | case TYPE_U32_STRING: | |
170 | ap->a.a_u32_string = va_arg (args, const uint32_t *); | |
171 | /* A null pointer is an invalid argument for "%llU", but in practice | |
172 | it occurs quite frequently in printf statements that produce | |
173 | debug output. Use a fallback in this case. */ | |
174 | if (ap->a.a_u32_string == NULL) | |
175 | { | |
176 | static const uint32_t u32_null_string[] = | |
177 | { '(', 'N', 'U', 'L', 'L', ')', 0 }; | |
178 | ap->a.a_u32_string = u32_null_string; | |
179 | } | |
180 | break; | |
181 | #endif | |
182 | default: | |
183 | /* Unknown type. */ | |
184 | return -1; | |
185 | } | |
186 | return 0; | |
187 | } |