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 struct data data_copy_escape_string(const char *s, int len)
77 d = data_grow_for(empty_data, strlen(s)+1);
84 c = get_escape_char(s, &i);
93 struct data data_copy_file(FILE *f, size_t maxlen)
95 struct data d = empty_data;
97 while (!feof(f) && (d.len < maxlen)) {
98 size_t chunksize, ret;
103 chunksize = maxlen - d.len;
105 d = data_grow_for(d, chunksize);
106 ret = fread(d.val + d.len, 1, chunksize, f);
109 die("Error reading file into data: %s", strerror(errno));
111 if (d.len + ret < d.len)
112 die("Overflow reading file into data\n");
120 struct data data_append_data(struct data d, const void *p, int len)
122 d = data_grow_for(d, len);
123 memcpy(d.val + d.len, p, len);
128 struct data data_insert_at_marker(struct data d, struct marker *m,
129 const void *p, int len)
131 d = data_grow_for(d, len);
132 memmove(d.val + m->offset + len, d.val + m->offset, d.len - m->offset);
133 memcpy(d.val + m->offset, p, len);
136 /* Adjust all markers after the one we're inserting at */
143 static struct data data_append_markers(struct data d, struct marker *m)
145 struct marker **mp = &d.markers;
147 /* Find the end of the markerlist */
154 struct data data_merge(struct data d1, struct data d2)
157 struct marker *m2 = d2.markers;
159 d = data_append_markers(data_append_data(d1, d2.val, d2.len), m2);
161 /* Adjust for the length of d1 */
163 m2->offset += d1.len;
165 d2.markers = NULL; /* So data_free() doesn't clobber them */
171 struct data data_append_integer(struct data d, uint64_t value, int bits)
181 return data_append_data(d, &value_8, 1);
184 value_16 = cpu_to_fdt16(value);
185 return data_append_data(d, &value_16, 2);
188 value_32 = cpu_to_fdt32(value);
189 return data_append_data(d, &value_32, 4);
192 value_64 = cpu_to_fdt64(value);
193 return data_append_data(d, &value_64, 8);
196 die("Invalid literal size (%d)\n", bits);
200 struct data data_append_re(struct data d, const struct fdt_reserve_entry *re)
202 struct fdt_reserve_entry bere;
204 bere.address = cpu_to_fdt64(re->address);
205 bere.size = cpu_to_fdt64(re->size);
207 return data_append_data(d, &bere, sizeof(bere));
210 struct data data_append_cell(struct data d, cell_t word)
212 return data_append_integer(d, word, sizeof(word) * 8);
215 struct data data_append_addr(struct data d, uint64_t addr)
217 return data_append_integer(d, addr, sizeof(addr) * 8);
220 struct data data_append_byte(struct data d, uint8_t byte)
222 return data_append_data(d, &byte, 1);
225 struct data data_append_zeroes(struct data d, int len)
227 d = data_grow_for(d, len);
229 memset(d.val + d.len, 0, len);
234 struct data data_append_align(struct data d, int align)
236 int newlen = ALIGN(d.len, align);
237 return data_append_zeroes(d, newlen - d.len);
240 struct data data_add_marker(struct data d, enum markertype type, char *ref)
244 m = xmalloc(sizeof(*m));
250 return data_append_markers(d, m);
253 int data_is_one_string(struct data d)
261 for (i = 0; i < len-1; i++)
262 if (d.val[i] == '\0')
265 if (d.val[len-1] != '\0')