xref: /illumos-gate/usr/src/cmd/msgfmt/gnu_msgs_rev.c (revision 8b80e8cb6855118d46f605e91b5ed4ce83417395)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include "gnu_msgfmt.h"
30 #include "../../lib/libc/inc/msgfmt.h"
31 
32 static unsigned int
33 doswap(unsigned int n)
34 {
35 	unsigned int	r;
36 
37 	r = (n << 24) | ((n & 0xff00) << 8) |
38 		((n >> 8) & 0xff00) | (n >> 24);
39 	return (r);
40 }
41 
42 struct messages	*
43 search_msg(struct catalog *p, const char *id, unsigned int hash_val)
44 {
45 	unsigned int	i, idx, inc;
46 	struct messages	*m;
47 
48 	idx = hash_val % p->thash_size;
49 	inc = 1 + (hash_val % (p->thash_size - 2));
50 	if (!p->thash[idx])
51 		return (NULL);
52 
53 	m = p->msg;
54 	for (m = p->msg; (i = p->thash[idx]) != 0;
55 		idx = (idx + inc) % p->thash_size) {
56 		if (strcmp(m[i - 1].id, id) == 0) {
57 			/* found */
58 			return (&m[i - 1]);
59 		}
60 	}
61 	return (NULL);
62 }
63 
64 static int
65 msg_cmp(struct messages *m1, struct messages *m2)
66 {
67 	return (strcmp(m1->id, m2->id));
68 }
69 
70 void
71 output_all_gnu_mo_files(void)
72 {
73 	struct catalog	*p, *op;
74 	struct messages	*m;
75 	size_t	id_len, str_len, id_off, str_off, ids_top, strs_top;
76 	unsigned int	*hash_tbl;
77 	unsigned int	hash_size, off_msgstr_tbl, off_hashtbl;
78 	unsigned int	num = 0, fnum = 0, unum = 0;
79 	unsigned int	i, idx;
80 	char	*ids, *strs;
81 	struct msgtbl	*id_tbl, *str_tbl;
82 	struct gnu_msg_info	header;
83 	FILE	*out;
84 
85 	p = catalog_head;
86 
87 	while (p) {
88 		num += p->nmsg;
89 		fnum += p->fnum;
90 		unum += p->unum;
91 
92 		if (p->header)
93 			num--;
94 
95 		p->msg = (struct messages *)Xrealloc(p->msg,
96 			sizeof (struct messages) * p->nmsg);
97 
98 		free(p->thash);
99 		/*
100 		 * Sort the message array
101 		 */
102 		qsort(p->msg, p->nmsg, sizeof (struct messages),
103 			(int (*)(const void *, const void *))msg_cmp);
104 
105 
106 		hash_size = find_prime(p->nmsg);
107 		hash_tbl = (unsigned int *)Xcalloc(hash_size,
108 			sizeof (unsigned int));
109 
110 
111 		/* Setting Header info */
112 		off_msgstr_tbl = sizeof (struct gnu_msg_info) +
113 			p->nmsg * sizeof (struct msgtbl);
114 		off_hashtbl = off_msgstr_tbl +
115 			p->nmsg * sizeof (struct msgtbl);
116 
117 		header.magic = doswap(GNU_MAGIC);
118 		header.revision = doswap(GNU_REVISION);
119 		header.num_of_str = doswap(p->nmsg);
120 		header.off_msgid_tbl =
121 			doswap(sizeof (struct gnu_msg_info));
122 		header.off_msgstr_tbl = doswap(off_msgstr_tbl);
123 		header.sz_hashtbl = doswap(hash_size);
124 		header.off_hashtbl = doswap(off_hashtbl);
125 
126 		m = p->msg;
127 
128 		id_len = 0;
129 		str_len = 0;
130 		for (i = 0; i < p->nmsg; i++) {
131 			id_len += m[i].id_len;
132 			str_len += m[i].str_len;
133 		}
134 		ids = (char *)Xmalloc(id_len);
135 		strs = (char *)Xmalloc(str_len);
136 		id_tbl = (struct msgtbl *)Xmalloc(sizeof (struct msgtbl) *
137 			p->nmsg);
138 		str_tbl = (struct msgtbl *)Xmalloc(sizeof (struct msgtbl) *
139 			p->nmsg);
140 		id_off = 0;
141 		str_off = 0;
142 		ids_top = off_hashtbl +
143 			sizeof (unsigned int) * hash_size;
144 		strs_top = ids_top + id_len;
145 		for (i = 0; i < p->nmsg; i++) {
146 			/*
147 			 * Set the hash table
148 			 */
149 			idx = get_hash_index(hash_tbl, m[i].hash, hash_size);
150 			hash_tbl[idx] = doswap(i + 1);
151 
152 			/*
153 			 * rearrange msgid and msgstr
154 			 */
155 			id_tbl[i].len = doswap(m[i].id_len - 1);
156 			str_tbl[i].len = doswap(m[i].str_len - 1);
157 			id_tbl[i].offset = doswap(id_off + ids_top);
158 			str_tbl[i].offset = doswap(str_off + strs_top);
159 			(void) memcpy(ids + id_off, m[i].id, m[i].id_len);
160 			(void) memcpy(strs + str_off, m[i].str, m[i].str_len);
161 			id_off += m[i].id_len;
162 			str_off += m[i].str_len;
163 			free(m[i].id);
164 			free(m[i].str);
165 		}
166 
167 		if ((out = fopen(p->fname, "w")) == NULL) {
168 			error(gettext(ERR_OPEN_FAILED), p->fname);
169 			/* NOTREACHED */
170 		}
171 
172 		/* writing header */
173 		(void) fwrite(&header, sizeof (struct gnu_msg_info),
174 			1, out);
175 
176 		/* writing msgid offset table */
177 		(void) fwrite(id_tbl, sizeof (struct msgtbl),
178 			p->nmsg, out);
179 		/* writing msgstr offset table */
180 		(void) fwrite(str_tbl, sizeof (struct msgtbl),
181 			p->nmsg, out);
182 		/* writing hash table */
183 		(void) fwrite(hash_tbl, sizeof (unsigned int),
184 			hash_size, out);
185 		/* writing msgid table */
186 		(void) fwrite(ids, id_len, 1, out);
187 		/* writing msgstr table */
188 		(void) fwrite(strs, str_len, 1, out);
189 
190 		(void) fclose(out);
191 		free(p->fname);
192 		free(p->msg);
193 		free(id_tbl);
194 		free(str_tbl);
195 		free(hash_tbl);
196 		free(ids);
197 		free(strs);
198 		op = p->next;
199 		free(p);
200 		p = op;
201 	}
202 	if (verbose_flag) {
203 		diag(gettext(DIAG_RESULTS), num, fnum, unum);
204 	}
205 }
206