5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 void data_free(struct data d)
25 struct marker *m, *nm;
39 struct data data_grow_for(struct data d, int xlen)
51 while ((d.len + xlen) > newsize)
54 nd.val = xrealloc(d.val, newsize);
59 struct data data_copy_mem(const char *mem, int len)
63 d = data_grow_for(empty_data, len);
66 memcpy(d.val, mem, len);
71 struct data data_copy_escape_string(const char *s, int len)
77 d = data_add_marker(empty_data, TYPE_STRING, NULL);
78 d = data_grow_for(d, len + 1);
85 c = get_escape_char(s, &i);
94 struct data data_copy_file(FILE *f, size_t maxlen)
96 struct data d = empty_data;
98 d = data_add_marker(d, TYPE_NONE, NULL);
99 while (!feof(f) && (d.len < maxlen)) {
100 size_t chunksize, ret;
105 chunksize = maxlen - d.len;
107 d = data_grow_for(d, chunksize);
108 ret = fread(d.val + d.len, 1, chunksize, f);
111 die("Error reading file into data: %s", strerror(errno));
113 if (d.len + ret < d.len)
114 die("Overflow reading file into data\n");
122 struct data data_append_data(struct data d, const void *p, int len)
124 d = data_grow_for(d, len);
125 memcpy(d.val + d.len, p, len);
130 struct data data_insert_at_marker(struct data d, struct marker *m,
131 const void *p, int len)
133 d = data_grow_for(d, len);
134 memmove(d.val + m->offset + len, d.val + m->offset, d.len - m->offset);
135 memcpy(d.val + m->offset, p, len);
138 /* Adjust all markers after the one we're inserting at */
145 static struct data data_append_markers(struct data d, struct marker *m)
147 struct marker **mp = &d.markers;
149 /* Find the end of the markerlist */
156 struct data data_merge(struct data d1, struct data d2)
159 struct marker *m2 = d2.markers;
161 d = data_append_markers(data_append_data(d1, d2.val, d2.len), m2);
163 /* Adjust for the length of d1 */
165 m2->offset += d1.len;
167 d2.markers = NULL; /* So data_free() doesn't clobber them */
173 struct data data_append_integer(struct data d, uint64_t value, int bits)
183 return data_append_data(d, &value_8, 1);
186 value_16 = cpu_to_fdt16(value);
187 return data_append_data(d, &value_16, 2);
190 value_32 = cpu_to_fdt32(value);
191 return data_append_data(d, &value_32, 4);
194 value_64 = cpu_to_fdt64(value);
195 return data_append_data(d, &value_64, 8);
198 die("Invalid literal size (%d)\n", bits);
202 struct data data_append_re(struct data d, uint64_t address, uint64_t size)
204 struct fdt_reserve_entry re;
206 re.address = cpu_to_fdt64(address);
207 re.size = cpu_to_fdt64(size);
209 return data_append_data(d, &re, sizeof(re));
212 struct data data_append_cell(struct data d, cell_t word)
214 return data_append_integer(d, word, sizeof(word) * 8);
217 struct data data_append_addr(struct data d, uint64_t addr)
219 return data_append_integer(d, addr, sizeof(addr) * 8);
222 struct data data_append_byte(struct data d, uint8_t byte)
224 return data_append_data(d, &byte, 1);
227 struct data data_append_zeroes(struct data d, int len)
229 d = data_grow_for(d, len);
231 memset(d.val + d.len, 0, len);
236 struct data data_append_align(struct data d, int align)
238 int newlen = ALIGN(d.len, align);
239 return data_append_zeroes(d, newlen - d.len);
242 struct data data_add_marker(struct data d, enum markertype type, char *ref)
246 m = xmalloc(sizeof(*m));
252 return data_append_markers(d, m);
255 bool data_is_one_string(struct data d)
263 for (i = 0; i < len-1; i++)
264 if (d.val[i] == '\0')
267 if (d.val[len-1] != '\0')