src/libstatgrab/error.c

/*
 * i-scream libstatgrab
 * http://www.i-scream.org
 * Copyright (C) 2000-2004 i-scream
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *
 * $Id: error.c,v 1.13 2004/07/16 15:28:02 tdb Exp $
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "statgrab.h"
#include "tools.h"

static sg_error error = SG_ERROR_NONE;
#define ERROR_ARG_MAX 256
static char error_arg[ERROR_ARG_MAX];
static int errno_value = 0;

void sg_set_error(sg_error code, const char *arg) {
        errno_value = 0;
        error = code;
        if (arg != NULL) {
                sg_strlcpy(error_arg, arg, sizeof error_arg);
        }
        else {
                /* FIXME is this the best idea? */
                error_arg[0] = '\0';
        }
}

void sg_set_error_with_errno(sg_error code, const char *arg) {
        sg_set_error(code, arg);
        errno_value = errno;
}

sg_error sg_get_error() {
        return error;
}

const char *sg_get_error_arg() {
        return error_arg;
}

const int sg_get_error_errno() {
        return errno_value;
}

const char *sg_str_error(sg_error code) {
        switch (code) {
        case SG_ERROR_NONE:
                return "no error";
        case SG_ERROR_ASPRINTF:
                return "asprintf failed";
        case SG_ERROR_DEVSTAT_GETDEVS:
                return "devstat_getdevs failed";
        case SG_ERROR_DEVSTAT_SELECTDEVS:
                return "devstat_selectdevs failed";
        case SG_ERROR_ENOENT:
                return "system call received ENOENT";
        case SG_ERROR_GETIFADDRS:
                return "getifaddress failed";
        case SG_ERROR_GETMNTINFO:
                return "getmntinfo failed";
        case SG_ERROR_GETPAGESIZE:
                return "getpagesize failed";
        case SG_ERROR_KSTAT_DATA_LOOKUP:
                return "kstat_data_lookup failed";
        case SG_ERROR_KSTAT_LOOKUP:
                return "kstat_lookup failed";
        case SG_ERROR_KSTAT_OPEN:
                return "kstat_open failed";
        case SG_ERROR_KSTAT_READ:
                return "kstat_read failed";
        case SG_ERROR_KVM_GETSWAPINFO:
                return "kvm_getswapinfo failed";
        case SG_ERROR_KVM_OPENFILES:
                return "kvm_openfiles failed";
        case SG_ERROR_MALLOC:
                return "malloc failed";
        case SG_ERROR_OPEN:
                return "failed to open file";
        case SG_ERROR_OPENDIR:
                return "failed to open directory";
        case SG_ERROR_PARSE:
                return "failed to parse input";
        case SG_ERROR_SETEGID:
                return "setegid failed";
        case SG_ERROR_SETEUID:
                return "seteuid failed";
        case SG_ERROR_SETMNTENT:
                return "setmntent failed";
        case SG_ERROR_SOCKET:
                return "socket failed";
        case SG_ERROR_SWAPCTL:
                return "swapctl failed";
        case SG_ERROR_SYSCONF:
                return "sysconf failed";
        case SG_ERROR_SYSCTL:
                return "sysctl failed";
        case SG_ERROR_SYSCTLBYNAME:
                return "sysctlbyname failed";
        case SG_ERROR_SYSCTLNAMETOMIB:
                return "sysctlnametomib failed";
        case SG_ERROR_UNAME:
                return "uname failed";
        case SG_ERROR_UNSUPPORTED:
                return "unsupported function";
        case SG_ERROR_XSW_VER_MISMATCH:
                return "XSW version mismatch";
        }
        return "unknown error";
}

Revision:	1.14
Committed:	Sun Jul 18 20:39:02 2004 UTC (19 years, 10 months ago) by ats
Content type:	text/plain
Branch:	MAIN
Changes since 1.13:	+3 -2 lines
Log Message:	Clear errno_value on errors that don't have a valid errno.
#	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 1.13 2004/07/16 15:28:02 tdb Exp $
22	*/
23
24	#ifdef HAVE_CONFIG_H
25	#include "config.h"
26	#endif
27
28	#include <stdlib.h>
29	#include <string.h>
30	#include <errno.h>
31
32	#include "statgrab.h"
33	#include "tools.h"
34
35	static sg_error error = SG_ERROR_NONE;
36	#define ERROR_ARG_MAX 256
37	static char error_arg[ERROR_ARG_MAX];
38	static int errno_value = 0;
39
40	void sg_set_error(sg_error code, const char *arg) {
41	errno_value = 0;
42	error = code;
43	if (arg != NULL) {
44	sg_strlcpy(error_arg, arg, sizeof error_arg);
45	}
46	else {
47	/* FIXME is this the best idea? */
48	error_arg[0] = '\0';
49	}
50	}
51
52	void sg_set_error_with_errno(sg_error code, const char *arg) {
53	sg_set_error(code, arg);
54	errno_value = errno;
55	}
56
57	sg_error sg_get_error() {
58	return error;
59	}
60
61	const char *sg_get_error_arg() {
62	return error_arg;
63	}
64
65	const int sg_get_error_errno() {
66	return errno_value;
67	}
68
69	const char *sg_str_error(sg_error code) {
70	switch (code) {
71	case SG_ERROR_NONE:
72	return "no error";
73	case SG_ERROR_ASPRINTF:
74	return "asprintf failed";
75	case SG_ERROR_DEVSTAT_GETDEVS:
76	return "devstat_getdevs failed";
77	case SG_ERROR_DEVSTAT_SELECTDEVS:
78	return "devstat_selectdevs failed";
79	case SG_ERROR_ENOENT:
80	return "system call received ENOENT";
81	case SG_ERROR_GETIFADDRS:
82	return "getifaddress failed";
83	case SG_ERROR_GETMNTINFO:
84	return "getmntinfo failed";
85	case SG_ERROR_GETPAGESIZE:
86	return "getpagesize failed";
87	case SG_ERROR_KSTAT_DATA_LOOKUP:
88	return "kstat_data_lookup failed";
89	case SG_ERROR_KSTAT_LOOKUP:
90	return "kstat_lookup failed";
91	case SG_ERROR_KSTAT_OPEN:
92	return "kstat_open failed";
93	case SG_ERROR_KSTAT_READ:
94	return "kstat_read failed";
95	case SG_ERROR_KVM_GETSWAPINFO:
96	return "kvm_getswapinfo failed";
97	case SG_ERROR_KVM_OPENFILES:
98	return "kvm_openfiles failed";
99	case SG_ERROR_MALLOC:
100	return "malloc failed";
101	case SG_ERROR_OPEN:
102	return "failed to open file";
103	case SG_ERROR_OPENDIR:
104	return "failed to open directory";
105	case SG_ERROR_PARSE:
106	return "failed to parse input";
107	case SG_ERROR_SETEGID:
108	return "setegid failed";
109	case SG_ERROR_SETEUID:
110	return "seteuid failed";
111	case SG_ERROR_SETMNTENT:
112	return "setmntent failed";
113	case SG_ERROR_SOCKET:
114	return "socket failed";
115	case SG_ERROR_SWAPCTL:
116	return "swapctl failed";
117	case SG_ERROR_SYSCONF:
118	return "sysconf failed";
119	case SG_ERROR_SYSCTL:
120	return "sysctl failed";
121	case SG_ERROR_SYSCTLBYNAME:
122	return "sysctlbyname failed";
123	case SG_ERROR_SYSCTLNAMETOMIB:
124	return "sysctlnametomib failed";
125	case SG_ERROR_UNAME:
126	return "uname failed";
127	case SG_ERROR_UNSUPPORTED:
128	return "unsupported function";
129	case SG_ERROR_XSW_VER_MISMATCH:
130	return "XSW version mismatch";
131	}
132	return "unknown error";
133	}
134