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d26e3629 KY |
1 | /* A simple growing buffer for GDB. |
2 | ||
0b302171 | 3 | Copyright (C) 2009-2012 Free Software Foundation, Inc. |
d26e3629 KY |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #ifdef GDBSERVER | |
21 | #include "server.h" | |
22 | #else | |
23 | #include "defs.h" | |
24 | #endif | |
25 | ||
26 | #include "xml-utils.h" | |
27 | #include "buffer.h" | |
28 | ||
29 | #include <stdlib.h> | |
30 | #include <string.h> | |
31 | #include <stdio.h> | |
32 | ||
33 | void | |
34 | buffer_grow (struct buffer *buffer, const char *data, size_t size) | |
35 | { | |
36 | char *new_buffer; | |
37 | size_t new_buffer_size; | |
38 | ||
39 | if (size == 0) | |
40 | return; | |
41 | ||
42 | new_buffer_size = buffer->buffer_size; | |
43 | ||
44 | if (new_buffer_size == 0) | |
45 | new_buffer_size = 1; | |
46 | ||
47 | while (buffer->used_size + size > new_buffer_size) | |
48 | new_buffer_size *= 2; | |
49 | new_buffer = xrealloc (buffer->buffer, new_buffer_size); | |
d26e3629 KY |
50 | memcpy (new_buffer + buffer->used_size, data, size); |
51 | buffer->buffer = new_buffer; | |
52 | buffer->buffer_size = new_buffer_size; | |
53 | buffer->used_size += size; | |
54 | } | |
55 | ||
56 | void | |
57 | buffer_free (struct buffer *buffer) | |
58 | { | |
59 | if (!buffer) | |
60 | return; | |
61 | ||
62 | xfree (buffer->buffer); | |
63 | buffer->buffer = NULL; | |
64 | buffer->buffer_size = 0; | |
65 | buffer->used_size = 0; | |
66 | } | |
67 | ||
68 | void | |
69 | buffer_init (struct buffer *buffer) | |
70 | { | |
71 | memset (buffer, 0, sizeof (*buffer)); | |
72 | } | |
73 | ||
74 | char* | |
75 | buffer_finish (struct buffer *buffer) | |
76 | { | |
77 | char *ret = buffer->buffer; | |
78 | buffer->buffer = NULL; | |
79 | buffer->buffer_size = 0; | |
80 | buffer->used_size = 0; | |
81 | return ret; | |
82 | } | |
83 | ||
84 | void | |
85 | buffer_xml_printf (struct buffer *buffer, const char *format, ...) | |
86 | { | |
87 | va_list ap; | |
88 | const char *f; | |
89 | const char *prev; | |
90 | int percent = 0; | |
91 | ||
92 | va_start (ap, format); | |
93 | ||
94 | prev = format; | |
95 | for (f = format; *f; f++) | |
96 | { | |
97 | if (percent) | |
98 | { | |
99 | char buf[32]; | |
100 | char *p; | |
101 | char *str = buf; | |
85d4a676 | 102 | const char *f_old = f; |
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103 | |
104 | switch (*f) | |
105 | { | |
106 | case 's': | |
107 | str = va_arg (ap, char *); | |
108 | break; | |
109 | case 'd': | |
110 | sprintf (str, "%d", va_arg (ap, int)); | |
111 | break; | |
112 | case 'u': | |
113 | sprintf (str, "%u", va_arg (ap, unsigned int)); | |
114 | break; | |
115 | case 'x': | |
116 | sprintf (str, "%x", va_arg (ap, unsigned int)); | |
117 | break; | |
118 | case 'o': | |
119 | sprintf (str, "%o", va_arg (ap, unsigned int)); | |
120 | break; | |
85d4a676 SS |
121 | case 'l': |
122 | f++; | |
123 | switch (*f) | |
124 | { | |
125 | case 'd': | |
126 | sprintf (str, "%ld", va_arg (ap, long)); | |
127 | break; | |
128 | case 'u': | |
129 | sprintf (str, "%lu", va_arg (ap, unsigned long)); | |
130 | break; | |
131 | case 'x': | |
132 | sprintf (str, "%lx", va_arg (ap, unsigned long)); | |
133 | break; | |
134 | case 'o': | |
135 | sprintf (str, "%lo", va_arg (ap, unsigned long)); | |
136 | break; | |
137 | case 'l': | |
138 | f++; | |
139 | switch (*f) | |
140 | { | |
141 | case 'd': | |
142 | sprintf (str, "%lld", va_arg (ap, long long)); | |
143 | break; | |
144 | case 'u': | |
145 | sprintf (str, "%llu", va_arg (ap, unsigned long long)); | |
146 | break; | |
147 | case 'x': | |
148 | sprintf (str, "%llx", va_arg (ap, unsigned long long)); | |
149 | break; | |
150 | case 'o': | |
151 | sprintf (str, "%llo", va_arg (ap, unsigned long long)); | |
152 | break; | |
153 | default: | |
154 | str = 0; | |
155 | break; | |
156 | } | |
157 | break; | |
158 | default: | |
159 | str = 0; | |
160 | break; | |
161 | } | |
162 | break; | |
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163 | default: |
164 | str = 0; | |
165 | break; | |
166 | } | |
85d4a676 | 167 | |
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168 | if (str) |
169 | { | |
85d4a676 | 170 | buffer_grow (buffer, prev, f_old - prev - 1); |
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171 | p = xml_escape_text (str); |
172 | buffer_grow_str (buffer, p); | |
173 | xfree (p); | |
174 | prev = f + 1; | |
175 | } | |
176 | percent = 0; | |
177 | } | |
178 | else if (*f == '%') | |
179 | percent = 1; | |
180 | } | |
181 | ||
182 | buffer_grow_str (buffer, prev); | |
183 | va_end (ap); | |
184 | } | |
185 |