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root/i-scream/projects/libstatgrab/src/libstatgrab/error.c
Revision: 1.8
Committed: Wed Apr 7 21:19:26 2004 UTC (20 years, 1 month ago) by ats
Content type: text/plain
Branch: MAIN
Changes since 1.7: +9 -4 lines
Log Message: 
Add sg_get_error_arg. It uses a static buffer for storage rather than
sg_update_string because we can't do anything about a malloc failure at
that point.

Remove the default case in the switch, so GCC will give an "unhandled
enum value in switch" warning if we add a new error code without a
string.

File Contents

# Content
1 /*
2 * i-scream libstatgrab
3 * http://www.i-scream.org
4 * Copyright (C) 2000-2004 i-scream
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 * 02111-1307 USA
20 *
21 * $Id: error.c,v 1.7 2004/04/07 21:08:40 tdb Exp $
22 */
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include <stdlib.h>
29
30 #include "statgrab.h"
31
32 static sg_error error = SG_ERROR_NONE;
33 #define ERROR_ARG_MAX 256
34 static char error_arg[ERROR_ARG_MAX];
35
36 void sg_set_error(sg_error code, const char *arg) {
37 error = code;
38 strlcpy(error_arg, arg, sizeof error_arg);
39 }
40
41 sg_error sg_get_error() {
42 return error;
43 }
44
45 const char *sg_get_error_arg() {
46 return error_arg;
47 }
48
49 const char *sg_str_error(sg_error code) {
50 switch (code) {
51 case SG_ERROR_NONE:
52 return "no error";
53 case SG_ERROR_ASPRINTF:
54 return "asprintf failed";
55 case SG_ERROR_DEVSTAT_GETDEVS:
56 return "devstat_getdevs failed";
57 case SG_ERROR_DEVSTAT_SELECTDEVS:
58 return "devstat_selectdevs failed";
59 case SG_ERROR_ENOENT:
60 return "system call received ENOENT";
61 case SG_ERROR_GETIFADDRS:
62 return "getifaddress failed";
63 case SG_ERROR_GETMNTINFO:
64 return "getmntinfo failed";
65 case SG_ERROR_GETPAGESIZE:
66 return "getpagesize failed";
67 case SG_ERROR_KSTAT_DATA_LOOKUP:
68 return "kstat_data_lookup failed";
69 case SG_ERROR_KSTAT_LOOKUP:
70 return "kstat_lookup failed";
71 case SG_ERROR_KSTAT_OPEN:
72 return "kstat_open failed";
73 case SG_ERROR_KSTAT_READ:
74 return "kstat_read failed";
75 case SG_ERROR_KVM_GETSWAPINFO:
76 return "kvm_getswapinfo failed";
77 case SG_ERROR_KVM_OPENFILES:
78 return "kvm_openfiles failed";
79 case SG_ERROR_MALLOC:
80 return "malloc failed";
81 case SG_ERROR_OPEN:
82 return "failed to open file";
83 case SG_ERROR_OPENDIR:
84 return "failed to open directory";
85 case SG_ERROR_PARSE:
86 return "failed to parse input";
87 case SG_ERROR_SETEGID:
88 return "setegid failed";
89 case SG_ERROR_SETEUID:
90 return "seteuid failed";
91 case SG_ERROR_SETMNTENT:
92 return "setmntent failed";
93 case SG_ERROR_SOCKET:
94 return "socket failed";
95 case SG_ERROR_SWAPCTL:
96 return "swapctl failed";
97 case SG_ERROR_SYSCONF:
98 return "sysconf failed";
99 case SG_ERROR_SYSCTL:
100 return "sysctl failed";
101 case SG_ERROR_SYSCTLBYNAME:
102 return "sysctlbyname failed";
103 case SG_ERROR_SYSCTLNAMETOMIB:
104 return "sysctlnametomib failed";
105 case SG_ERROR_UNAME:
106 return "uname failed";
107 case SG_ERROR_UNSUPPORTED:
108 return "unsupported function";
109 case SG_ERROR_XSW_VER_MISMATCH:
110 return "XSW version mismatch";
111 }
112 return "unknown error";
113 }
114