xstrerror.cc
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1/*
2 * Copyright (C) 1996-2022 The Squid Software Foundation and contributors
3 *
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
7 */
8
9#include "squid.h"
10#include "compat/xstrerror.h"
11
12#include <cstring>
13
14#if _SQUID_WINDOWS_
15static struct _wsaerrtext {
16 int err;
17 const char *errconst;
18 const char *errdesc;
19} _wsaerrtext[] = {
20
21 { WSA_E_CANCELLED, "WSA_E_CANCELLED", "Lookup cancelled." },
22 { WSA_E_NO_MORE, "WSA_E_NO_MORE", "No more data available." },
23 { WSAEACCES, "WSAEACCES", "Permission denied." },
24 { WSAEADDRINUSE, "WSAEADDRINUSE", "Address already in use." },
25 { WSAEADDRNOTAVAIL, "WSAEADDRNOTAVAIL", "Cannot assign requested address." },
26 { WSAEAFNOSUPPORT, "WSAEAFNOSUPPORT", "Address family not supported by protocol family." },
27 { WSAEALREADY, "WSAEALREADY", "Operation already in progress." },
28 { WSAEBADF, "WSAEBADF", "Bad file number." },
29 { WSAECANCELLED, "WSAECANCELLED", "Operation cancelled." },
30 { WSAECONNABORTED, "WSAECONNABORTED", "Software caused connection abort." },
31 { WSAECONNREFUSED, "WSAECONNREFUSED", "Connection refused." },
32 { WSAECONNRESET, "WSAECONNRESET", "Connection reset by peer." },
33 { WSAEDESTADDRREQ, "WSAEDESTADDRREQ", "Destination address required." },
34 { WSAEDQUOT, "WSAEDQUOT", "Disk quota exceeded." },
35 { WSAEFAULT, "WSAEFAULT", "Bad address." },
36 { WSAEHOSTDOWN, "WSAEHOSTDOWN", "Host is down." },
37 { WSAEHOSTUNREACH, "WSAEHOSTUNREACH", "No route to host." },
38 { WSAEINPROGRESS, "WSAEINPROGRESS", "Operation now in progress." },
39 { WSAEINTR, "WSAEINTR", "Interrupted function call." },
40 { WSAEINVAL, "WSAEINVAL", "Invalid argument." },
41 { WSAEINVALIDPROCTABLE, "WSAEINVALIDPROCTABLE", "Invalid procedure table from service provider." },
42 { WSAEINVALIDPROVIDER, "WSAEINVALIDPROVIDER", "Invalid service provider version number." },
43 { WSAEISCONN, "WSAEISCONN", "Socket is already connected." },
44 { WSAELOOP, "WSAELOOP", "Too many levels of symbolic links." },
45 { WSAEMFILE, "WSAEMFILE", "Too many open files." },
46 { WSAEMSGSIZE, "WSAEMSGSIZE", "Message too long." },
47 { WSAENAMETOOLONG, "WSAENAMETOOLONG", "File name is too long." },
48 { WSAENETDOWN, "WSAENETDOWN", "Network is down." },
49 { WSAENETRESET, "WSAENETRESET", "Network dropped connection on reset." },
50 { WSAENETUNREACH, "WSAENETUNREACH", "Network is unreachable." },
51 { WSAENOBUFS, "WSAENOBUFS", "No buffer space available." },
52 { WSAENOMORE, "WSAENOMORE", "No more data available." },
53 { WSAENOPROTOOPT, "WSAENOPROTOOPT", "Bad protocol option." },
54 { WSAENOTCONN, "WSAENOTCONN", "Socket is not connected." },
55 { WSAENOTEMPTY, "WSAENOTEMPTY", "Directory is not empty." },
56 { WSAENOTSOCK, "WSAENOTSOCK", "Socket operation on nonsocket." },
57 { WSAEOPNOTSUPP, "WSAEOPNOTSUPP", "Operation not supported." },
58 { WSAEPFNOSUPPORT, "WSAEPFNOSUPPORT", "Protocol family not supported." },
59 { WSAEPROCLIM, "WSAEPROCLIM", "Too many processes." },
60 { WSAEPROTONOSUPPORT, "WSAEPROTONOSUPPORT", "Protocol not supported." },
61 { WSAEPROTOTYPE, "WSAEPROTOTYPE", "Protocol wrong type for socket." },
62 { WSAEPROVIDERFAILEDINIT, "WSAEPROVIDERFAILEDINIT", "Unable to initialise a service provider." },
63 { WSAEREFUSED, "WSAEREFUSED", "Refused." },
64 { WSAEREMOTE, "WSAEREMOTE", "Too many levels of remote in path." },
65 { WSAESHUTDOWN, "WSAESHUTDOWN", "Cannot send after socket shutdown." },
66 { WSAESOCKTNOSUPPORT, "WSAESOCKTNOSUPPORT", "Socket type not supported." },
67 { WSAESTALE, "WSAESTALE", "Stale NFS file handle." },
68 { WSAETIMEDOUT, "WSAETIMEDOUT", "Connection timed out." },
69 { WSAETOOMANYREFS, "WSAETOOMANYREFS", "Too many references." },
70 { WSAEUSERS, "WSAEUSERS", "Too many users." },
71 { WSAEWOULDBLOCK, "WSAEWOULDBLOCK", "Resource temporarily unavailable." },
72 { WSANOTINITIALISED, "WSANOTINITIALISED", "Successful WSAStartup not yet performed." },
73 { WSASERVICE_NOT_FOUND, "WSASERVICE_NOT_FOUND", "Service not found." },
74 { WSASYSCALLFAILURE, "WSASYSCALLFAILURE", "System call failure." },
75 { WSASYSNOTREADY, "WSASYSNOTREADY", "Network subsystem is unavailable." },
76 { WSATYPE_NOT_FOUND, "WSATYPE_NOT_FOUND", "Class type not found." },
77 { WSAVERNOTSUPPORTED, "WSAVERNOTSUPPORTED", "Winsock.dll version out of range." },
78 { WSAEDISCON, "WSAEDISCON", "Graceful shutdown in progress." }
79};
80#endif
81
82const char *
84{
85 static char xstrerror_buf[BUFSIZ];
86
87 if (error == 0)
88 return "(0) No error.";
89
90#if _SQUID_WINDOWS_
91 // Description of WSAGetLastError()
92 for (size_t i = 0; i < sizeof(_wsaerrtext) / sizeof(struct _wsaerrtext); ++i) {
93 if (_wsaerrtext[i].err == error) {
94 // small optimization, save using a temporary buffer and two copies...
95 snprintf(xstrerror_buf, BUFSIZ, "(%d) %s, %s", error, _wsaerrtext[i].errconst, _wsaerrtext[i].errdesc);
96 return xstrerror_buf;
97 }
98 }
99#endif
100
101 const char *errmsg = strerror(error);
102
103 if (!errmsg || !*errmsg)
104 errmsg = "Unknown error";
105
106 snprintf(xstrerror_buf, BUFSIZ, "(%d) %s", error, errmsg);
107
108 return xstrerror_buf;
109}
110
void error(char *format,...)
#define BUFSIZ
Definition: defines.h:20
char * strerror(int ern)
Definition: strerror.c:22
const char * xstrerr(int error)
Definition: xstrerror.cc:83

 

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