xref: /illumos-gate/usr/src/cmd/msgfmt/gnu_msgs_rev.c (revision 1a2d662a91cee3bf82f41cd47c7ae6f3825d9db2)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 2001 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #include "gnu_msgfmt.h"
28 #include "../../lib/libc/inc/msgfmt.h"
29 
30 static unsigned int
31 doswap(unsigned int n)
32 {
33 	unsigned int	r;
34 
35 	r = (n << 24) | ((n & 0xff00) << 8) |
36 		((n >> 8) & 0xff00) | (n >> 24);
37 	return (r);
38 }
39 
40 struct messages	*
41 search_msg(struct catalog *p, const char *id, unsigned int hash_val)
42 {
43 	unsigned int	i, idx, inc;
44 	struct messages	*m;
45 
46 	idx = hash_val % p->thash_size;
47 	inc = 1 + (hash_val % (p->thash_size - 2));
48 	if (!p->thash[idx])
49 		return (NULL);
50 
51 	m = p->msg;
52 	for (m = p->msg; (i = p->thash[idx]) != 0;
53 		idx = (idx + inc) % p->thash_size) {
54 		if (strcmp(m[i - 1].id, id) == 0) {
55 			/* found */
56 			return (&m[i - 1]);
57 		}
58 	}
59 	return (NULL);
60 }
61 
62 static int
63 msg_cmp(struct messages *m1, struct messages *m2)
64 {
65 	return (strcmp(m1->id, m2->id));
66 }
67 
68 void
69 output_all_gnu_mo_files(void)
70 {
71 	struct catalog	*p, *op;
72 	struct messages	*m;
73 	size_t	id_len, str_len, id_off, str_off, ids_top, strs_top;
74 	unsigned int	*hash_tbl;
75 	unsigned int	hash_size, off_msgstr_tbl, off_hashtbl;
76 	unsigned int	num = 0, fnum = 0, unum = 0;
77 	unsigned int	i, idx;
78 	char	*ids, *strs;
79 	struct msgtbl	*id_tbl, *str_tbl;
80 	struct gnu_msg_info	header;
81 	FILE	*out;
82 
83 	p = catalog_head;
84 
85 	while (p) {
86 		num += p->nmsg;
87 		fnum += p->fnum;
88 		unum += p->unum;
89 
90 		if (p->header)
91 			num--;
92 
93 		p->msg = (struct messages *)Xrealloc(p->msg,
94 			sizeof (struct messages) * p->nmsg);
95 
96 		free(p->thash);
97 		/*
98 		 * Sort the message array
99 		 */
100 		qsort(p->msg, p->nmsg, sizeof (struct messages),
101 			(int (*)(const void *, const void *))msg_cmp);
102 
103 
104 		hash_size = find_prime(p->nmsg);
105 		hash_tbl = (unsigned int *)Xcalloc(hash_size,
106 			sizeof (unsigned int));
107 
108 
109 		/* Setting Header info */
110 		off_msgstr_tbl = sizeof (struct gnu_msg_info) +
111 			p->nmsg * sizeof (struct msgtbl);
112 		off_hashtbl = off_msgstr_tbl +
113 			p->nmsg * sizeof (struct msgtbl);
114 
115 		header.magic = doswap(GNU_MAGIC);
116 		header.revision = doswap(GNU_REVISION);
117 		header.num_of_str = doswap(p->nmsg);
118 		header.off_msgid_tbl =
119 			doswap(sizeof (struct gnu_msg_info));
120 		header.off_msgstr_tbl = doswap(off_msgstr_tbl);
121 		header.sz_hashtbl = doswap(hash_size);
122 		header.off_hashtbl = doswap(off_hashtbl);
123 
124 		m = p->msg;
125 
126 		id_len = 0;
127 		str_len = 0;
128 		for (i = 0; i < p->nmsg; i++) {
129 			id_len += m[i].id_len;
130 			str_len += m[i].str_len;
131 		}
132 		ids = (char *)Xmalloc(id_len);
133 		strs = (char *)Xmalloc(str_len);
134 		id_tbl = (struct msgtbl *)Xmalloc(sizeof (struct msgtbl) *
135 			p->nmsg);
136 		str_tbl = (struct msgtbl *)Xmalloc(sizeof (struct msgtbl) *
137 			p->nmsg);
138 		id_off = 0;
139 		str_off = 0;
140 		ids_top = off_hashtbl +
141 			sizeof (unsigned int) * hash_size;
142 		strs_top = ids_top + id_len;
143 		for (i = 0; i < p->nmsg; i++) {
144 			/*
145 			 * Set the hash table
146 			 */
147 			idx = get_hash_index(hash_tbl, m[i].hash, hash_size);
148 			hash_tbl[idx] = doswap(i + 1);
149 
150 			/*
151 			 * rearrange msgid and msgstr
152 			 */
153 			id_tbl[i].len = doswap(m[i].id_len - 1);
154 			str_tbl[i].len = doswap(m[i].str_len - 1);
155 			id_tbl[i].offset = doswap(id_off + ids_top);
156 			str_tbl[i].offset = doswap(str_off + strs_top);
157 			(void) memcpy(ids + id_off, m[i].id, m[i].id_len);
158 			(void) memcpy(strs + str_off, m[i].str, m[i].str_len);
159 			id_off += m[i].id_len;
160 			str_off += m[i].str_len;
161 			free(m[i].id);
162 			free(m[i].str);
163 		}
164 
165 		if ((out = fopen(p->fname, "w")) == NULL) {
166 			error(gettext(ERR_OPEN_FAILED), p->fname);
167 			/* NOTREACHED */
168 		}
169 
170 		/* writing header */
171 		(void) fwrite(&header, sizeof (struct gnu_msg_info),
172 			1, out);
173 
174 		/* writing msgid offset table */
175 		(void) fwrite(id_tbl, sizeof (struct msgtbl),
176 			p->nmsg, out);
177 		/* writing msgstr offset table */
178 		(void) fwrite(str_tbl, sizeof (struct msgtbl),
179 			p->nmsg, out);
180 		/* writing hash table */
181 		(void) fwrite(hash_tbl, sizeof (unsigned int),
182 			hash_size, out);
183 		/* writing msgid table */
184 		(void) fwrite(ids, id_len, 1, out);
185 		/* writing msgstr table */
186 		(void) fwrite(strs, str_len, 1, out);
187 
188 		(void) fclose(out);
189 		free(p->fname);
190 		free(p->msg);
191 		free(id_tbl);
192 		free(str_tbl);
193 		free(hash_tbl);
194 		free(ids);
195 		free(strs);
196 		op = p->next;
197 		free(p);
198 		p = op;
199 	}
200 	if (verbose_flag) {
201 		diag(gettext(DIAG_RESULTS), num, fnum, unum);
202 	}
203 }
204