2 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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 static char get_oct_char(const char *s, int *i)
78 strncpy(x, s + *i, 3);
80 val = strtol(x, &endx, 8);
88 static char get_hex_char(const char *s, int *i)
95 strncpy(x, s + *i, 2);
97 val = strtol(x, &endx, 16);
99 die("\\x used with no following hex digits\n");
105 struct data data_copy_escape_string(const char *s, int len)
111 d = data_grow_for(empty_data, strlen(s)+1);
154 i--; /* need to re-read the first digit as
155 * part of the octal value */
156 q[d.len++] = get_oct_char(s, &i);
159 q[d.len++] = get_hex_char(s, &i);
170 struct data data_copy_file(FILE *f, size_t maxlen)
172 struct data d = empty_data;
174 while (!feof(f) && (d.len < maxlen)) {
175 size_t chunksize, ret;
180 chunksize = maxlen - d.len;
182 d = data_grow_for(d, chunksize);
183 ret = fread(d.val + d.len, 1, chunksize, f);
186 die("Error reading file into data: %s", strerror(errno));
188 if (d.len + ret < d.len)
189 die("Overflow reading file into data\n");
197 struct data data_append_data(struct data d, const void *p, int len)
199 d = data_grow_for(d, len);
200 memcpy(d.val + d.len, p, len);
205 struct data data_insert_at_marker(struct data d, struct marker *m,
206 const void *p, int len)
208 d = data_grow_for(d, len);
209 memmove(d.val + m->offset + len, d.val + m->offset, d.len - m->offset);
210 memcpy(d.val + m->offset, p, len);
213 /* Adjust all markers after the one we're inserting at */
220 static struct data data_append_markers(struct data d, struct marker *m)
222 struct marker **mp = &d.markers;
224 /* Find the end of the markerlist */
231 struct data data_merge(struct data d1, struct data d2)
234 struct marker *m2 = d2.markers;
236 d = data_append_markers(data_append_data(d1, d2.val, d2.len), m2);
238 /* Adjust for the length of d1 */
240 m2->offset += d1.len;
242 d2.markers = NULL; /* So data_free() doesn't clobber them */
248 struct data data_append_cell(struct data d, cell_t word)
250 cell_t beword = cpu_to_fdt32(word);
252 return data_append_data(d, &beword, sizeof(beword));
255 struct data data_append_re(struct data d, const struct fdt_reserve_entry *re)
257 struct fdt_reserve_entry bere;
259 bere.address = cpu_to_fdt64(re->address);
260 bere.size = cpu_to_fdt64(re->size);
262 return data_append_data(d, &bere, sizeof(bere));
265 struct data data_append_addr(struct data d, uint64_t addr)
267 uint64_t beaddr = cpu_to_fdt64(addr);
269 return data_append_data(d, &beaddr, sizeof(beaddr));
272 struct data data_append_byte(struct data d, uint8_t byte)
274 return data_append_data(d, &byte, 1);
277 struct data data_append_zeroes(struct data d, int len)
279 d = data_grow_for(d, len);
281 memset(d.val + d.len, 0, len);
286 struct data data_append_align(struct data d, int align)
288 int newlen = ALIGN(d.len, align);
289 return data_append_zeroes(d, newlen - d.len);
292 struct data data_add_marker(struct data d, enum markertype type, char *ref)
296 m = xmalloc(sizeof(*m));
302 return data_append_markers(d, m);
305 int data_is_one_string(struct data d)
313 for (i = 0; i < len-1; i++)
314 if (d.val[i] == '\0')
317 if (d.val[len-1] != '\0')