sys_nerr
Havoc Pennington
hp at redhat.com
Tue Feb 5 22:14:45 PST 2002
"Wichmann, Mats D" <mats.d.wichmann at intel.com> writes:
> Of course, sys_nerr is not a public symbol in the LSB.
> How would I work around this?
Port the code to strerror(). The same problem exists on Solaris I
think; old Sun OS's had sys_nerr or equivalent, but now that interface
is private and Sun does not let you use it. At least I seem to recall
reading that on sun.com.
If portability is an issue, you might want to make a portability
wrapper similar to the following one from GLib. (This code is licensed
under the LGPL.) See the configure.in tests from GLib for how
HAVE_STRERROR and NO_SYS_ERRLIST are defined.
Havoc
G_CONST_RETURN gchar*
g_strerror (gint errnum)
{
static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
char *msg;
#ifdef HAVE_STRERROR
return strerror (errnum);
#elif NO_SYS_ERRLIST
switch (errnum)
{
#ifdef E2BIG
case E2BIG: return "argument list too long";
#endif
#ifdef EACCES
case EACCES: return "permission denied";
#endif
#ifdef EADDRINUSE
case EADDRINUSE: return "address already in use";
#endif
#ifdef EADDRNOTAVAIL
case EADDRNOTAVAIL: return "can't assign requested address";
#endif
#ifdef EADV
case EADV: return "advertise error";
#endif
#ifdef EAFNOSUPPORT
case EAFNOSUPPORT: return "address family not supported by protocol family";
#endif
#ifdef EAGAIN
case EAGAIN: return "try again";
#endif
#ifdef EALIGN
case EALIGN: return "EALIGN";
#endif
#ifdef EALREADY
case EALREADY: return "operation already in progress";
#endif
#ifdef EBADE
case EBADE: return "bad exchange descriptor";
#endif
#ifdef EBADF
case EBADF: return "bad file number";
#endif
#ifdef EBADFD
case EBADFD: return "file descriptor in bad state";
#endif
#ifdef EBADMSG
case EBADMSG: return "not a data message";
#endif
#ifdef EBADR
case EBADR: return "bad request descriptor";
#endif
#ifdef EBADRPC
case EBADRPC: return "RPC structure is bad";
#endif
#ifdef EBADRQC
case EBADRQC: return "bad request code";
#endif
#ifdef EBADSLT
case EBADSLT: return "invalid slot";
#endif
#ifdef EBFONT
case EBFONT: return "bad font file format";
#endif
#ifdef EBUSY
case EBUSY: return "mount device busy";
#endif
#ifdef ECHILD
case ECHILD: return "no children";
#endif
#ifdef ECHRNG
case ECHRNG: return "channel number out of range";
#endif
#ifdef ECOMM
case ECOMM: return "communication error on send";
#endif
#ifdef ECONNABORTED
case ECONNABORTED: return "software caused connection abort";
#endif
#ifdef ECONNREFUSED
case ECONNREFUSED: return "connection refused";
#endif
#ifdef ECONNRESET
case ECONNRESET: return "connection reset by peer";
#endif
#if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
case EDEADLK: return "resource deadlock avoided";
#endif
#ifdef EDEADLOCK
case EDEADLOCK: return "resource deadlock avoided";
#endif
#ifdef EDESTADDRREQ
case EDESTADDRREQ: return "destination address required";
#endif
#ifdef EDIRTY
case EDIRTY: return "mounting a dirty fs w/o force";
#endif
#ifdef EDOM
case EDOM: return "math argument out of range";
#endif
#ifdef EDOTDOT
case EDOTDOT: return "cross mount point";
#endif
#ifdef EDQUOT
case EDQUOT: return "disk quota exceeded";
#endif
#ifdef EDUPPKG
case EDUPPKG: return "duplicate package name";
#endif
#ifdef EEXIST
case EEXIST: return "file already exists";
#endif
#ifdef EFAULT
case EFAULT: return "bad address in system call argument";
#endif
#ifdef EFBIG
case EFBIG: return "file too large";
#endif
#ifdef EHOSTDOWN
case EHOSTDOWN: return "host is down";
#endif
#ifdef EHOSTUNREACH
case EHOSTUNREACH: return "host is unreachable";
#endif
#ifdef EIDRM
case EIDRM: return "identifier removed";
#endif
#ifdef EINIT
case EINIT: return "initialization error";
#endif
#ifdef EINPROGRESS
case EINPROGRESS: return "operation now in progress";
#endif
#ifdef EINTR
case EINTR: return "interrupted system call";
#endif
#ifdef EINVAL
case EINVAL: return "invalid argument";
#endif
#ifdef EIO
case EIO: return "I/O error";
#endif
#ifdef EISCONN
case EISCONN: return "socket is already connected";
#endif
#ifdef EISDIR
case EISDIR: return "is a directory";
#endif
#ifdef EISNAME
case EISNAM: return "is a name file";
#endif
#ifdef ELBIN
case ELBIN: return "ELBIN";
#endif
#ifdef EL2HLT
case EL2HLT: return "level 2 halted";
#endif
#ifdef EL2NSYNC
case EL2NSYNC: return "level 2 not synchronized";
#endif
#ifdef EL3HLT
case EL3HLT: return "level 3 halted";
#endif
#ifdef EL3RST
case EL3RST: return "level 3 reset";
#endif
#ifdef ELIBACC
case ELIBACC: return "can not access a needed shared library";
#endif
#ifdef ELIBBAD
case ELIBBAD: return "accessing a corrupted shared library";
#endif
#ifdef ELIBEXEC
case ELIBEXEC: return "can not exec a shared library directly";
#endif
#ifdef ELIBMAX
case ELIBMAX: return "attempting to link in more shared libraries than system limit";
#endif
#ifdef ELIBSCN
case ELIBSCN: return ".lib section in a.out corrupted";
#endif
#ifdef ELNRNG
case ELNRNG: return "link number out of range";
#endif
#ifdef ELOOP
case ELOOP: return "too many levels of symbolic links";
#endif
#ifdef EMFILE
case EMFILE: return "too many open files";
#endif
#ifdef EMLINK
case EMLINK: return "too many links";
#endif
#ifdef EMSGSIZE
case EMSGSIZE: return "message too long";
#endif
#ifdef EMULTIHOP
case EMULTIHOP: return "multihop attempted";
#endif
#ifdef ENAMETOOLONG
case ENAMETOOLONG: return "file name too long";
#endif
#ifdef ENAVAIL
case ENAVAIL: return "not available";
#endif
#ifdef ENET
case ENET: return "ENET";
#endif
#ifdef ENETDOWN
case ENETDOWN: return "network is down";
#endif
#ifdef ENETRESET
case ENETRESET: return "network dropped connection on reset";
#endif
#ifdef ENETUNREACH
case ENETUNREACH: return "network is unreachable";
#endif
#ifdef ENFILE
case ENFILE: return "file table overflow";
#endif
#ifdef ENOANO
case ENOANO: return "anode table overflow";
#endif
#if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
case ENOBUFS: return "no buffer space available";
#endif
#ifdef ENOCSI
case ENOCSI: return "no CSI structure available";
#endif
#ifdef ENODATA
case ENODATA: return "no data available";
#endif
#ifdef ENODEV
case ENODEV: return "no such device";
#endif
#ifdef ENOENT
case ENOENT: return "no such file or directory";
#endif
#ifdef ENOEXEC
case ENOEXEC: return "exec format error";
#endif
#ifdef ENOLCK
case ENOLCK: return "no locks available";
#endif
#ifdef ENOLINK
case ENOLINK: return "link has be severed";
#endif
#ifdef ENOMEM
case ENOMEM: return "not enough memory";
#endif
#ifdef ENOMSG
case ENOMSG: return "no message of desired type";
#endif
#ifdef ENONET
case ENONET: return "machine is not on the network";
#endif
#ifdef ENOPKG
case ENOPKG: return "package not installed";
#endif
#ifdef ENOPROTOOPT
case ENOPROTOOPT: return "bad proocol option";
#endif
#ifdef ENOSPC
case ENOSPC: return "no space left on device";
#endif
#ifdef ENOSR
case ENOSR: return "out of stream resources";
#endif
#ifdef ENOSTR
case ENOSTR: return "not a stream device";
#endif
#ifdef ENOSYM
case ENOSYM: return "unresolved symbol name";
#endif
#ifdef ENOSYS
case ENOSYS: return "function not implemented";
#endif
#ifdef ENOTBLK
case ENOTBLK: return "block device required";
#endif
#ifdef ENOTCONN
case ENOTCONN: return "socket is not connected";
#endif
#ifdef ENOTDIR
case ENOTDIR: return "not a directory";
#endif
#ifdef ENOTEMPTY
case ENOTEMPTY: return "directory not empty";
#endif
#ifdef ENOTNAM
case ENOTNAM: return "not a name file";
#endif
#ifdef ENOTSOCK
case ENOTSOCK: return "socket operation on non-socket";
#endif
#ifdef ENOTTY
case ENOTTY: return "inappropriate device for ioctl";
#endif
#ifdef ENOTUNIQ
case ENOTUNIQ: return "name not unique on network";
#endif
#ifdef ENXIO
case ENXIO: return "no such device or address";
#endif
#ifdef EOPNOTSUPP
case EOPNOTSUPP: return "operation not supported on socket";
#endif
#ifdef EPERM
case EPERM: return "not owner";
#endif
#ifdef EPFNOSUPPORT
case EPFNOSUPPORT: return "protocol family not supported";
#endif
#ifdef EPIPE
case EPIPE: return "broken pipe";
#endif
#ifdef EPROCLIM
case EPROCLIM: return "too many processes";
#endif
#ifdef EPROCUNAVAIL
case EPROCUNAVAIL: return "bad procedure for program";
#endif
#ifdef EPROGMISMATCH
case EPROGMISMATCH: return "program version wrong";
#endif
#ifdef EPROGUNAVAIL
case EPROGUNAVAIL: return "RPC program not available";
#endif
#ifdef EPROTO
case EPROTO: return "protocol error";
#endif
#ifdef EPROTONOSUPPORT
case EPROTONOSUPPORT: return "protocol not suppored";
#endif
#ifdef EPROTOTYPE
case EPROTOTYPE: return "protocol wrong type for socket";
#endif
#ifdef ERANGE
case ERANGE: return "math result unrepresentable";
#endif
#if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
case EREFUSED: return "EREFUSED";
#endif
#ifdef EREMCHG
case EREMCHG: return "remote address changed";
#endif
#ifdef EREMDEV
case EREMDEV: return "remote device";
#endif
#ifdef EREMOTE
case EREMOTE: return "pathname hit remote file system";
#endif
#ifdef EREMOTEIO
case EREMOTEIO: return "remote i/o error";
#endif
#ifdef EREMOTERELEASE
case EREMOTERELEASE: return "EREMOTERELEASE";
#endif
#ifdef EROFS
case EROFS: return "read-only file system";
#endif
#ifdef ERPCMISMATCH
case ERPCMISMATCH: return "RPC version is wrong";
#endif
#ifdef ERREMOTE
case ERREMOTE: return "object is remote";
#endif
#ifdef ESHUTDOWN
case ESHUTDOWN: return "can't send afer socket shutdown";
#endif
#ifdef ESOCKTNOSUPPORT
case ESOCKTNOSUPPORT: return "socket type not supported";
#endif
#ifdef ESPIPE
case ESPIPE: return "invalid seek";
#endif
#ifdef ESRCH
case ESRCH: return "no such process";
#endif
#ifdef ESRMNT
case ESRMNT: return "srmount error";
#endif
#ifdef ESTALE
case ESTALE: return "stale remote file handle";
#endif
#ifdef ESUCCESS
case ESUCCESS: return "Error 0";
#endif
#ifdef ETIME
case ETIME: return "timer expired";
#endif
#ifdef ETIMEDOUT
case ETIMEDOUT: return "connection timed out";
#endif
#ifdef ETOOMANYREFS
case ETOOMANYREFS: return "too many references: can't splice";
#endif
#ifdef ETXTBSY
case ETXTBSY: return "text file or pseudo-device busy";
#endif
#ifdef EUCLEAN
case EUCLEAN: return "structure needs cleaning";
#endif
#ifdef EUNATCH
case EUNATCH: return "protocol driver not attached";
#endif
#ifdef EUSERS
case EUSERS: return "too many users";
#endif
#ifdef EVERSION
case EVERSION: return "version mismatch";
#endif
#if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
case EWOULDBLOCK: return "operation would block";
#endif
#ifdef EXDEV
case EXDEV: return "cross-domain link";
#endif
#ifdef EXFULL
case EXFULL: return "message tables full";
#endif
}
#else /* NO_SYS_ERRLIST */
extern int sys_nerr;
extern char *sys_errlist[];
if ((errnum > 0) && (errnum <= sys_nerr))
return sys_errlist [errnum];
#endif /* NO_SYS_ERRLIST */
msg = g_static_private_get (&msg_private);
if (!msg)
{
msg = g_new (gchar, 64);
g_static_private_set (&msg_private, msg, g_free);
}
sprintf (msg, "unknown error (%d)", errnum);
return msg;
}
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