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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27
28 /*
29 * Module: pkgerr.c
30 * Description:
31 * Module for handling error messages that come from libpkg libraries.
32 */
33
34 #include <stdio.h>
35 #include <string.h>
36 #include <sys/types.h>
37 #include <locale.h>
38 #include <libintl.h>
39 #include <stdlib.h>
40 #include <sys/varargs.h>
41 #include "pkgerr.h"
42
43 /* max length of any formatted error message */
44 #define MAX_ERRMSGLEN 1024
45
46 /* private structures (not visible outside this file) */
47 struct _pkg_err_struct {
48 int nerrs;
49 char **msgs;
50 PKG_ERR_CODE *errs;
51 };
52
53 /* ---------------------- public functions ----------------------- */
54
55 PKG_ERR
pkgerr_new()56 *pkgerr_new()
57 {
58 PKG_ERR *newerr;
59
60 newerr = (PKG_ERR *)malloc(sizeof (PKG_ERR));
61 newerr->nerrs = 0;
62 newerr->msgs = NULL;
63 newerr->errs = NULL;
64 return (newerr);
65 }
66
67 /*PRINTFLIKE3*/
68 void
pkgerr_add(PKG_ERR * err,PKG_ERR_CODE code,char * fmt,...)69 pkgerr_add(PKG_ERR *err, PKG_ERR_CODE code, char *fmt, ...)
70 {
71 char errmsgbuf[1024];
72 va_list ap;
73
74 va_start(ap, fmt);
75 (void) vsnprintf(errmsgbuf, MAX_ERRMSGLEN, fmt, ap);
76 va_end(ap);
77
78 err->nerrs++;
79
80 err->msgs = (char **)realloc(err->msgs,
81 err->nerrs * sizeof (char *));
82 err->errs = (PKG_ERR_CODE *)realloc(err->errs,
83 err->nerrs * sizeof (PKG_ERR_CODE));
84 err->msgs[err->nerrs - 1] = strdup(errmsgbuf);
85 err->errs[err->nerrs - 1] = code;
86 }
87
88 void
pkgerr_clear(PKG_ERR * err)89 pkgerr_clear(PKG_ERR *err)
90 {
91 int i;
92
93 for (i = 0; i < err->nerrs; i++) {
94 free(err->msgs[i]);
95 }
96
97 free(err->msgs);
98 free(err->errs);
99 err->msgs = NULL;
100 err->errs = NULL;
101 err->nerrs = 0;
102 }
103
104 int
pkgerr_num(PKG_ERR * err)105 pkgerr_num(PKG_ERR *err)
106 {
107 return (err->nerrs);
108 }
109
110 char
pkgerr_get(PKG_ERR * err,int pos)111 *pkgerr_get(PKG_ERR *err, int pos)
112 {
113 if (pos < 0 || pos > (err->nerrs - 1)) {
114 return (NULL);
115 }
116
117 return (err->msgs[pos]);
118 }
119
120 void
pkgerr_free(PKG_ERR * err)121 pkgerr_free(PKG_ERR *err)
122 {
123 pkgerr_clear(err);
124 free(err);
125 }
126