| 1 | /* A simple growing buffer for GDB. |
| 2 | |
| 3 | Copyright (C) 2009-2014 Free Software Foundation, Inc. |
| 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 | #include "common-defs.h" |
| 21 | #include "xml-utils.h" |
| 22 | #include "buffer.h" |
| 23 | #include "inttypes.h" |
| 24 | #include <stdint.h> |
| 25 | |
| 26 | void |
| 27 | buffer_grow (struct buffer *buffer, const char *data, size_t size) |
| 28 | { |
| 29 | char *new_buffer; |
| 30 | size_t new_buffer_size; |
| 31 | |
| 32 | if (size == 0) |
| 33 | return; |
| 34 | |
| 35 | new_buffer_size = buffer->buffer_size; |
| 36 | |
| 37 | if (new_buffer_size == 0) |
| 38 | new_buffer_size = 1; |
| 39 | |
| 40 | while (buffer->used_size + size > new_buffer_size) |
| 41 | new_buffer_size *= 2; |
| 42 | new_buffer = xrealloc (buffer->buffer, new_buffer_size); |
| 43 | memcpy (new_buffer + buffer->used_size, data, size); |
| 44 | buffer->buffer = new_buffer; |
| 45 | buffer->buffer_size = new_buffer_size; |
| 46 | buffer->used_size += size; |
| 47 | } |
| 48 | |
| 49 | void |
| 50 | buffer_free (struct buffer *buffer) |
| 51 | { |
| 52 | if (!buffer) |
| 53 | return; |
| 54 | |
| 55 | xfree (buffer->buffer); |
| 56 | buffer->buffer = NULL; |
| 57 | buffer->buffer_size = 0; |
| 58 | buffer->used_size = 0; |
| 59 | } |
| 60 | |
| 61 | void |
| 62 | buffer_init (struct buffer *buffer) |
| 63 | { |
| 64 | memset (buffer, 0, sizeof (*buffer)); |
| 65 | } |
| 66 | |
| 67 | char* |
| 68 | buffer_finish (struct buffer *buffer) |
| 69 | { |
| 70 | char *ret = buffer->buffer; |
| 71 | buffer->buffer = NULL; |
| 72 | buffer->buffer_size = 0; |
| 73 | buffer->used_size = 0; |
| 74 | return ret; |
| 75 | } |
| 76 | |
| 77 | void |
| 78 | buffer_xml_printf (struct buffer *buffer, const char *format, ...) |
| 79 | { |
| 80 | va_list ap; |
| 81 | const char *f; |
| 82 | const char *prev; |
| 83 | int percent = 0; |
| 84 | |
| 85 | va_start (ap, format); |
| 86 | |
| 87 | prev = format; |
| 88 | for (f = format; *f; f++) |
| 89 | { |
| 90 | if (percent) |
| 91 | { |
| 92 | char buf[32]; |
| 93 | char *p; |
| 94 | char *str = buf; |
| 95 | const char *f_old = f; |
| 96 | |
| 97 | switch (*f) |
| 98 | { |
| 99 | case 's': |
| 100 | str = va_arg (ap, char *); |
| 101 | break; |
| 102 | case 'd': |
| 103 | sprintf (str, "%d", va_arg (ap, int)); |
| 104 | break; |
| 105 | case 'u': |
| 106 | sprintf (str, "%u", va_arg (ap, unsigned int)); |
| 107 | break; |
| 108 | case 'x': |
| 109 | sprintf (str, "%x", va_arg (ap, unsigned int)); |
| 110 | break; |
| 111 | case 'o': |
| 112 | sprintf (str, "%o", va_arg (ap, unsigned int)); |
| 113 | break; |
| 114 | case 'l': |
| 115 | f++; |
| 116 | switch (*f) |
| 117 | { |
| 118 | case 'd': |
| 119 | sprintf (str, "%ld", va_arg (ap, long)); |
| 120 | break; |
| 121 | case 'u': |
| 122 | sprintf (str, "%lu", va_arg (ap, unsigned long)); |
| 123 | break; |
| 124 | case 'x': |
| 125 | sprintf (str, "%lx", va_arg (ap, unsigned long)); |
| 126 | break; |
| 127 | case 'o': |
| 128 | sprintf (str, "%lo", va_arg (ap, unsigned long)); |
| 129 | break; |
| 130 | case 'l': |
| 131 | f++; |
| 132 | switch (*f) |
| 133 | { |
| 134 | case 'd': |
| 135 | sprintf (str, "%" PRId64, |
| 136 | (int64_t) va_arg (ap, long long)); |
| 137 | break; |
| 138 | case 'u': |
| 139 | sprintf (str, "%" PRIu64, |
| 140 | (uint64_t) va_arg (ap, unsigned long long)); |
| 141 | break; |
| 142 | case 'x': |
| 143 | sprintf (str, "%" PRIx64, |
| 144 | (uint64_t) va_arg (ap, unsigned long long)); |
| 145 | break; |
| 146 | case 'o': |
| 147 | sprintf (str, "%" PRIo64, |
| 148 | (uint64_t) va_arg (ap, unsigned long long)); |
| 149 | break; |
| 150 | default: |
| 151 | str = 0; |
| 152 | break; |
| 153 | } |
| 154 | break; |
| 155 | default: |
| 156 | str = 0; |
| 157 | break; |
| 158 | } |
| 159 | break; |
| 160 | default: |
| 161 | str = 0; |
| 162 | break; |
| 163 | } |
| 164 | |
| 165 | if (str) |
| 166 | { |
| 167 | buffer_grow (buffer, prev, f_old - prev - 1); |
| 168 | p = xml_escape_text (str); |
| 169 | buffer_grow_str (buffer, p); |
| 170 | xfree (p); |
| 171 | prev = f + 1; |
| 172 | } |
| 173 | percent = 0; |
| 174 | } |
| 175 | else if (*f == '%') |
| 176 | percent = 1; |
| 177 | } |
| 178 | |
| 179 | buffer_grow_str (buffer, prev); |
| 180 | va_end (ap); |
| 181 | } |
| 182 | |