libnl: /data/src/libnl3/lib/error.c Source File

libnl 3.10.0

error.c
1/* SPDX-License-Identifier: LGPL-2.1-only */
2/*
3 * Copyright (c) 2008 Thomas Graf <tgraf@suug.ch>
4 */
5
6#include "nl-default.h"
7
8#include <netlink/netlink.h>
9
10static const char *errmsg[NLE_MAX+1] = {
11[NLE_SUCCESS] = "Success",
12[NLE_FAILURE] = "Unspecific failure",
13[NLE_INTR] = "Interrupted system call",
14[NLE_BAD_SOCK] = "Bad socket",
15[NLE_AGAIN] = "Try again",
16[NLE_NOMEM] = "Out of memory",
17[NLE_EXIST] = "Object exists",
18[NLE_INVAL] = "Invalid input data or parameter",
19[NLE_RANGE] = "Input data out of range",
20[NLE_MSGSIZE] = "Message size not sufficient",
21[NLE_OPNOTSUPP] = "Operation not supported",
22[NLE_AF_NOSUPPORT] = "Address family not supported",
23[NLE_OBJ_NOTFOUND] = "Object not found",
24[NLE_NOATTR] = "Attribute not available",
25[NLE_MISSING_ATTR] = "Missing attribute",
26[NLE_AF_MISMATCH] = "Address family mismatch",
27[NLE_SEQ_MISMATCH] = "Message sequence number mismatch",
28[NLE_MSG_OVERFLOW] = "Kernel reported message overflow",
29[NLE_MSG_TRUNC] = "Kernel reported truncated message",
30[NLE_NOADDR] = "Invalid address for specified address family",
31[NLE_SRCRT_NOSUPPORT] = "Source based routing not supported",
32[NLE_MSG_TOOSHORT] = "Netlink message is too short",
33[NLE_MSGTYPE_NOSUPPORT] = "Netlink message type is not supported",
34[NLE_OBJ_MISMATCH] = "Object type does not match cache",
35[NLE_NOCACHE] = "Unknown or invalid cache type",
36[NLE_BUSY] = "Object busy",
37[NLE_PROTO_MISMATCH] = "Protocol mismatch",
38[NLE_NOACCESS] = "No Access",
39[NLE_PERM] = "Operation not permitted",
40[NLE_PKTLOC_FILE] = "Unable to open packet location file",
41[NLE_PARSE_ERR] = "Unable to parse object",
42[NLE_NODEV] = "No such device",
43[NLE_IMMUTABLE] = "Immutable attribute",
44[NLE_DUMP_INTR] = "Dump inconsistency detected, interrupted",
45[NLE_ATTRSIZE] = "Attribute max length exceeded",
46};
47
48/**
49 * Return error message for an error code
50 * @return error message
51 */
52const char *nl_geterror(int error)
53{
54 error = abs(error);
55
56 if (error > NLE_MAX)
57 error = NLE_FAILURE;
58
59 return errmsg[error];
60}
61
62/**
63 * Print a libnl error message
64 * @arg s error message prefix
65 *
66 * Prints the error message of the call that failed last.
67 *
68 * If s is not NULL and *s is not a null byte the argument
69 * string is printed, followed by a colon and a blank. Then
70 * the error message and a new-line.
71 */
72void nl_perror(int error, const char *s)
73{
74 if (s && *s)
75 fprintf(stderr, "%s: %s\n", s, nl_geterror(error));
76 else
77 fprintf(stderr, "%s\n", nl_geterror(error));
78}
79
80int nl_syserr2nlerr(int error)
81{
82 error = abs(error);
83
84 switch (error) {
85 case EBADF: return NLE_BAD_SOCK;
86 case EADDRINUSE: return NLE_EXIST;
87 case EEXIST: return NLE_EXIST;
88 case EADDRNOTAVAIL: return NLE_NOADDR;
89 case ESRCH: /* fall through */
90 case ENOENT: return NLE_OBJ_NOTFOUND;
91 case EINTR: return NLE_INTR;
92 case EAGAIN: return NLE_AGAIN;
93 case ENOTSOCK: return NLE_BAD_SOCK;
94 case ENOPROTOOPT: return NLE_INVAL;
95 case EFAULT: return NLE_INVAL;
96 case EACCES: return NLE_NOACCESS;
97 case EINVAL: return NLE_INVAL;
98 case ENOBUFS: return NLE_NOMEM;
99 case ENOMEM: return NLE_NOMEM;
100 case EAFNOSUPPORT: return NLE_AF_NOSUPPORT;
101 case EPROTONOSUPPORT: return NLE_PROTO_MISMATCH;
102 case EOPNOTSUPP: return NLE_OPNOTSUPP;
103 case EPERM: return NLE_PERM;
104 case EBUSY: return NLE_BUSY;
105 case ERANGE: return NLE_RANGE;
106 case ENODEV: return NLE_NODEV;
107 default: return NLE_FAILURE;
108 }
109}
110
111/** @} */
112