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 1.11 2004/04/08 11:14:02 ats 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 char error_strerror[ERROR_ARG_MAX];

void sg_set_error(sg_error code, const char *arg) {
        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, int use_errno) {
        if(use_errno) {
                sg_strlcpy(error_strerror, strerror(errno), sizeof error_strerror);
        }
        else {
                /* FIXME is this the best idea? */
                error_strerror[0] = '\0';
        }
        sg_set_error(code, arg);
}

sg_error sg_get_error() {
        return error;
}

const char *sg_get_error_arg() {
        return error_arg;
}

const char *sg_get_error_strerror() {
        return error_strerror;
}

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:	1.12
Committed:	Fri Jul 16 15:07:14 2004 UTC (19 years, 10 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.11:	+19 -1 lines
Log Message:	Add function to allow grabbing of the current errno. Should we store errno too maybe?
#	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 1.11 2004/04/08 11:14:02 ats 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 char error_strerror[ERROR_ARG_MAX];
39
40	void sg_set_error(sg_error code, const char *arg) {
41	error = code;
42	if (arg != NULL) {
43	sg_strlcpy(error_arg, arg, sizeof error_arg);
44	}
45	else {
46	/* FIXME is this the best idea? */
47	error_arg[0] = '\0';
48	}
49	}
50
51	void sg_set_error_with_errno(sg_error code, const char *arg, int use_errno) {
52	if(use_errno) {
53	sg_strlcpy(error_strerror, strerror(errno), sizeof error_strerror);
54	}
55	else {
56	/* FIXME is this the best idea? */
57	error_strerror[0] = '\0';
58	}
59	sg_set_error(code, arg);
60	}
61
62	sg_error sg_get_error() {
63	return error;
64	}
65
66	const char *sg_get_error_arg() {
67	return error_arg;
68	}
69
70	const char *sg_get_error_strerror() {
71	return error_strerror;
72	}
73
74	const char *sg_str_error(sg_error code) {
75	switch (code) {
76	case SG_ERROR_NONE:
77	return "no error";
78	case SG_ERROR_ASPRINTF:
79	return "asprintf failed";
80	case SG_ERROR_DEVSTAT_GETDEVS:
81	return "devstat_getdevs failed";
82	case SG_ERROR_DEVSTAT_SELECTDEVS:
83	return "devstat_selectdevs failed";
84	case SG_ERROR_ENOENT:
85	return "system call received ENOENT";
86	case SG_ERROR_GETIFADDRS:
87	return "getifaddress failed";
88	case SG_ERROR_GETMNTINFO:
89	return "getmntinfo failed";
90	case SG_ERROR_GETPAGESIZE:
91	return "getpagesize failed";
92	case SG_ERROR_KSTAT_DATA_LOOKUP:
93	return "kstat_data_lookup failed";
94	case SG_ERROR_KSTAT_LOOKUP:
95	return "kstat_lookup failed";
96	case SG_ERROR_KSTAT_OPEN:
97	return "kstat_open failed";
98	case SG_ERROR_KSTAT_READ:
99	return "kstat_read failed";
100	case SG_ERROR_KVM_GETSWAPINFO:
101	return "kvm_getswapinfo failed";
102	case SG_ERROR_KVM_OPENFILES:
103	return "kvm_openfiles failed";
104	case SG_ERROR_MALLOC:
105	return "malloc failed";
106	case SG_ERROR_OPEN:
107	return "failed to open file";
108	case SG_ERROR_OPENDIR:
109	return "failed to open directory";
110	case SG_ERROR_PARSE:
111	return "failed to parse input";
112	case SG_ERROR_SETEGID:
113	return "setegid failed";
114	case SG_ERROR_SETEUID:
115	return "seteuid failed";
116	case SG_ERROR_SETMNTENT:
117	return "setmntent failed";
118	case SG_ERROR_SOCKET:
119	return "socket failed";
120	case SG_ERROR_SWAPCTL:
121	return "swapctl failed";
122	case SG_ERROR_SYSCONF:
123	return "sysconf failed";
124	case SG_ERROR_SYSCTL:
125	return "sysctl failed";
126	case SG_ERROR_SYSCTLBYNAME:
127	return "sysctlbyname failed";
128	case SG_ERROR_SYSCTLNAMETOMIB:
129	return "sysctlnametomib failed";
130	case SG_ERROR_UNAME:
131	return "uname failed";
132	case SG_ERROR_UNSUPPORTED:
133	return "unsupported function";
134	case SG_ERROR_XSW_VER_MISMATCH:
135	return "XSW version mismatch";
136	}
137	return "unknown error";
138	}
139