diff options
| author | cvs2svn <cvs2svn@FreeBSD.org> | 2006-06-08 13:10:52 +0000 | 
|---|---|---|
| committer | cvs2svn <cvs2svn@FreeBSD.org> | 2006-06-08 13:10:52 +0000 | 
| commit | 8911861820133a176d34353d257262dd1e764b1d (patch) | |
| tree | 4f7e9c4875f6299d738033dee893ab739d16c3dc /contrib/binutils/libiberty/strerror.c | |
| parent | 2ce641c5c4a4abcf1b9d570b63ec974620adb2d3 (diff) | |
Diffstat (limited to 'contrib/binutils/libiberty/strerror.c')
| -rw-r--r-- | contrib/binutils/libiberty/strerror.c | 812 | 
1 files changed, 0 insertions, 812 deletions
| diff --git a/contrib/binutils/libiberty/strerror.c b/contrib/binutils/libiberty/strerror.c deleted file mode 100644 index 83a5992b4dd91..0000000000000 --- a/contrib/binutils/libiberty/strerror.c +++ /dev/null @@ -1,812 +0,0 @@ -/* Extended support for using errno values. -   Written by Fred Fish.  fnf@cygnus.com -   This file is in the public domain.  --Per Bothner.  */ - -#include "ansidecl.h" -#include "libiberty.h" - -#include "config.h" - -#ifdef HAVE_SYS_ERRLIST -/* Note that errno.h (not sure what OS) or stdio.h (BSD 4.4, at least) -   might declare sys_errlist in a way that the compiler might consider -   incompatible with our later declaration, perhaps by using const -   attributes.  So we hide the declaration in errno.h (if any) using a -   macro. */ -#define sys_nerr sys_nerr__ -#define sys_errlist sys_errlist__ -#endif - -#include <stdio.h> -#include <errno.h> - -#ifdef HAVE_SYS_ERRLIST -#undef sys_nerr -#undef sys_errlist -#endif - -/*  Routines imported from standard C runtime libraries. */ - -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#else -extern PTR malloc (); -#endif - -#ifdef HAVE_STRING_H -#include <string.h> -#else -extern PTR memset (); -#endif - -#ifndef MAX -#  define MAX(a,b) ((a) > (b) ? (a) : (b)) -#endif - -static void init_error_tables PARAMS ((void)); - -/* Translation table for errno values.  See intro(2) in most UNIX systems -   Programmers Reference Manuals. - -   Note that this table is generally only accessed when it is used at runtime -   to initialize errno name and message tables that are indexed by errno -   value. - -   Not all of these errnos will exist on all systems.  This table is the only -   thing that should have to be updated as new error numbers are introduced. -   It's sort of ugly, but at least its portable. */ - -struct error_info -{ -  const int value;		/* The numeric value from <errno.h> */ -  const char *const name;	/* The equivalent symbolic value */ -#ifndef HAVE_SYS_ERRLIST -  const char *const msg;	/* Short message about this value */ -#endif -}; - -#ifndef HAVE_SYS_ERRLIST -#   define ENTRY(value, name, msg)	{value, name, msg} -#else -#   define ENTRY(value, name, msg)	{value, name} -#endif - -static const struct error_info error_table[] = -{ -#if defined (EPERM) -  ENTRY(EPERM, "EPERM", "Not owner"), -#endif -#if defined (ENOENT) -  ENTRY(ENOENT, "ENOENT", "No such file or directory"), -#endif -#if defined (ESRCH) -  ENTRY(ESRCH, "ESRCH", "No such process"), -#endif -#if defined (EINTR) -  ENTRY(EINTR, "EINTR", "Interrupted system call"), -#endif -#if defined (EIO) -  ENTRY(EIO, "EIO", "I/O error"), -#endif -#if defined (ENXIO) -  ENTRY(ENXIO, "ENXIO", "No such device or address"), -#endif -#if defined (E2BIG) -  ENTRY(E2BIG, "E2BIG", "Arg list too long"), -#endif -#if defined (ENOEXEC) -  ENTRY(ENOEXEC, "ENOEXEC", "Exec format error"), -#endif -#if defined (EBADF) -  ENTRY(EBADF, "EBADF", "Bad file number"), -#endif -#if defined (ECHILD) -  ENTRY(ECHILD, "ECHILD", "No child processes"), -#endif -#if defined (EWOULDBLOCK)	/* Put before EAGAIN, sometimes aliased */ -  ENTRY(EWOULDBLOCK, "EWOULDBLOCK", "Operation would block"), -#endif -#if defined (EAGAIN) -  ENTRY(EAGAIN, "EAGAIN", "No more processes"), -#endif -#if defined (ENOMEM) -  ENTRY(ENOMEM, "ENOMEM", "Not enough space"), -#endif -#if defined (EACCES) -  ENTRY(EACCES, "EACCES", "Permission denied"), -#endif -#if defined (EFAULT) -  ENTRY(EFAULT, "EFAULT", "Bad address"), -#endif -#if defined (ENOTBLK) -  ENTRY(ENOTBLK, "ENOTBLK", "Block device required"), -#endif -#if defined (EBUSY) -  ENTRY(EBUSY, "EBUSY", "Device busy"), -#endif -#if defined (EEXIST) -  ENTRY(EEXIST, "EEXIST", "File exists"), -#endif -#if defined (EXDEV) -  ENTRY(EXDEV, "EXDEV", "Cross-device link"), -#endif -#if defined (ENODEV) -  ENTRY(ENODEV, "ENODEV", "No such device"), -#endif -#if defined (ENOTDIR) -  ENTRY(ENOTDIR, "ENOTDIR", "Not a directory"), -#endif -#if defined (EISDIR) -  ENTRY(EISDIR, "EISDIR", "Is a directory"), -#endif -#if defined (EINVAL) -  ENTRY(EINVAL, "EINVAL", "Invalid argument"), -#endif -#if defined (ENFILE) -  ENTRY(ENFILE, "ENFILE", "File table overflow"), -#endif -#if defined (EMFILE) -  ENTRY(EMFILE, "EMFILE", "Too many open files"), -#endif -#if defined (ENOTTY) -  ENTRY(ENOTTY, "ENOTTY", "Not a typewriter"), -#endif -#if defined (ETXTBSY) -  ENTRY(ETXTBSY, "ETXTBSY", "Text file busy"), -#endif -#if defined (EFBIG) -  ENTRY(EFBIG, "EFBIG", "File too large"), -#endif -#if defined (ENOSPC) -  ENTRY(ENOSPC, "ENOSPC", "No space left on device"), -#endif -#if defined (ESPIPE) -  ENTRY(ESPIPE, "ESPIPE", "Illegal seek"), -#endif -#if defined (EROFS) -  ENTRY(EROFS, "EROFS", "Read-only file system"), -#endif -#if defined (EMLINK) -  ENTRY(EMLINK, "EMLINK", "Too many links"), -#endif -#if defined (EPIPE) -  ENTRY(EPIPE, "EPIPE", "Broken pipe"), -#endif -#if defined (EDOM) -  ENTRY(EDOM, "EDOM", "Math argument out of domain of func"), -#endif -#if defined (ERANGE) -  ENTRY(ERANGE, "ERANGE", "Math result not representable"), -#endif -#if defined (ENOMSG) -  ENTRY(ENOMSG, "ENOMSG", "No message of desired type"), -#endif -#if defined (EIDRM) -  ENTRY(EIDRM, "EIDRM", "Identifier removed"), -#endif -#if defined (ECHRNG) -  ENTRY(ECHRNG, "ECHRNG", "Channel number out of range"), -#endif -#if defined (EL2NSYNC) -  ENTRY(EL2NSYNC, "EL2NSYNC", "Level 2 not synchronized"), -#endif -#if defined (EL3HLT) -  ENTRY(EL3HLT, "EL3HLT", "Level 3 halted"), -#endif -#if defined (EL3RST) -  ENTRY(EL3RST, "EL3RST", "Level 3 reset"), -#endif -#if defined (ELNRNG) -  ENTRY(ELNRNG, "ELNRNG", "Link number out of range"), -#endif -#if defined (EUNATCH) -  ENTRY(EUNATCH, "EUNATCH", "Protocol driver not attached"), -#endif -#if defined (ENOCSI) -  ENTRY(ENOCSI, "ENOCSI", "No CSI structure available"), -#endif -#if defined (EL2HLT) -  ENTRY(EL2HLT, "EL2HLT", "Level 2 halted"), -#endif -#if defined (EDEADLK) -  ENTRY(EDEADLK, "EDEADLK", "Deadlock condition"), -#endif -#if defined (ENOLCK) -  ENTRY(ENOLCK, "ENOLCK", "No record locks available"), -#endif -#if defined (EBADE) -  ENTRY(EBADE, "EBADE", "Invalid exchange"), -#endif -#if defined (EBADR) -  ENTRY(EBADR, "EBADR", "Invalid request descriptor"), -#endif -#if defined (EXFULL) -  ENTRY(EXFULL, "EXFULL", "Exchange full"), -#endif -#if defined (ENOANO) -  ENTRY(ENOANO, "ENOANO", "No anode"), -#endif -#if defined (EBADRQC) -  ENTRY(EBADRQC, "EBADRQC", "Invalid request code"), -#endif -#if defined (EBADSLT) -  ENTRY(EBADSLT, "EBADSLT", "Invalid slot"), -#endif -#if defined (EDEADLOCK) -  ENTRY(EDEADLOCK, "EDEADLOCK", "File locking deadlock error"), -#endif -#if defined (EBFONT) -  ENTRY(EBFONT, "EBFONT", "Bad font file format"), -#endif -#if defined (ENOSTR) -  ENTRY(ENOSTR, "ENOSTR", "Device not a stream"), -#endif -#if defined (ENODATA) -  ENTRY(ENODATA, "ENODATA", "No data available"), -#endif -#if defined (ETIME) -  ENTRY(ETIME, "ETIME", "Timer expired"), -#endif -#if defined (ENOSR) -  ENTRY(ENOSR, "ENOSR", "Out of streams resources"), -#endif -#if defined (ENONET) -  ENTRY(ENONET, "ENONET", "Machine is not on the network"), -#endif -#if defined (ENOPKG) -  ENTRY(ENOPKG, "ENOPKG", "Package not installed"), -#endif -#if defined (EREMOTE) -  ENTRY(EREMOTE, "EREMOTE", "Object is remote"), -#endif -#if defined (ENOLINK) -  ENTRY(ENOLINK, "ENOLINK", "Link has been severed"), -#endif -#if defined (EADV) -  ENTRY(EADV, "EADV", "Advertise error"), -#endif -#if defined (ESRMNT) -  ENTRY(ESRMNT, "ESRMNT", "Srmount error"), -#endif -#if defined (ECOMM) -  ENTRY(ECOMM, "ECOMM", "Communication error on send"), -#endif -#if defined (EPROTO) -  ENTRY(EPROTO, "EPROTO", "Protocol error"), -#endif -#if defined (EMULTIHOP) -  ENTRY(EMULTIHOP, "EMULTIHOP", "Multihop attempted"), -#endif -#if defined (EDOTDOT) -  ENTRY(EDOTDOT, "EDOTDOT", "RFS specific error"), -#endif -#if defined (EBADMSG) -  ENTRY(EBADMSG, "EBADMSG", "Not a data message"), -#endif -#if defined (ENAMETOOLONG) -  ENTRY(ENAMETOOLONG, "ENAMETOOLONG", "File name too long"), -#endif -#if defined (EOVERFLOW) -  ENTRY(EOVERFLOW, "EOVERFLOW", "Value too large for defined data type"), -#endif -#if defined (ENOTUNIQ) -  ENTRY(ENOTUNIQ, "ENOTUNIQ", "Name not unique on network"), -#endif -#if defined (EBADFD) -  ENTRY(EBADFD, "EBADFD", "File descriptor in bad state"), -#endif -#if defined (EREMCHG) -  ENTRY(EREMCHG, "EREMCHG", "Remote address changed"), -#endif -#if defined (ELIBACC) -  ENTRY(ELIBACC, "ELIBACC", "Can not access a needed shared library"), -#endif -#if defined (ELIBBAD) -  ENTRY(ELIBBAD, "ELIBBAD", "Accessing a corrupted shared library"), -#endif -#if defined (ELIBSCN) -  ENTRY(ELIBSCN, "ELIBSCN", ".lib section in a.out corrupted"), -#endif -#if defined (ELIBMAX) -  ENTRY(ELIBMAX, "ELIBMAX", "Attempting to link in too many shared libraries"), -#endif -#if defined (ELIBEXEC) -  ENTRY(ELIBEXEC, "ELIBEXEC", "Cannot exec a shared library directly"), -#endif -#if defined (EILSEQ) -  ENTRY(EILSEQ, "EILSEQ", "Illegal byte sequence"), -#endif -#if defined (ENOSYS) -  ENTRY(ENOSYS, "ENOSYS", "Operation not applicable"), -#endif -#if defined (ELOOP) -  ENTRY(ELOOP, "ELOOP", "Too many symbolic links encountered"), -#endif -#if defined (ERESTART) -  ENTRY(ERESTART, "ERESTART", "Interrupted system call should be restarted"), -#endif -#if defined (ESTRPIPE) -  ENTRY(ESTRPIPE, "ESTRPIPE", "Streams pipe error"), -#endif -#if defined (ENOTEMPTY) -  ENTRY(ENOTEMPTY, "ENOTEMPTY", "Directory not empty"), -#endif -#if defined (EUSERS) -  ENTRY(EUSERS, "EUSERS", "Too many users"), -#endif -#if defined (ENOTSOCK) -  ENTRY(ENOTSOCK, "ENOTSOCK", "Socket operation on non-socket"), -#endif -#if defined (EDESTADDRREQ) -  ENTRY(EDESTADDRREQ, "EDESTADDRREQ", "Destination address required"), -#endif -#if defined (EMSGSIZE) -  ENTRY(EMSGSIZE, "EMSGSIZE", "Message too long"), -#endif -#if defined (EPROTOTYPE) -  ENTRY(EPROTOTYPE, "EPROTOTYPE", "Protocol wrong type for socket"), -#endif -#if defined (ENOPROTOOPT) -  ENTRY(ENOPROTOOPT, "ENOPROTOOPT", "Protocol not available"), -#endif -#if defined (EPROTONOSUPPORT) -  ENTRY(EPROTONOSUPPORT, "EPROTONOSUPPORT", "Protocol not supported"), -#endif -#if defined (ESOCKTNOSUPPORT) -  ENTRY(ESOCKTNOSUPPORT, "ESOCKTNOSUPPORT", "Socket type not supported"), -#endif -#if defined (EOPNOTSUPP) -  ENTRY(EOPNOTSUPP, "EOPNOTSUPP", "Operation not supported on transport endpoint"), -#endif -#if defined (EPFNOSUPPORT) -  ENTRY(EPFNOSUPPORT, "EPFNOSUPPORT", "Protocol family not supported"), -#endif -#if defined (EAFNOSUPPORT) -  ENTRY(EAFNOSUPPORT, "EAFNOSUPPORT", "Address family not supported by protocol"), -#endif -#if defined (EADDRINUSE) -  ENTRY(EADDRINUSE, "EADDRINUSE", "Address already in use"), -#endif -#if defined (EADDRNOTAVAIL) -  ENTRY(EADDRNOTAVAIL, "EADDRNOTAVAIL","Cannot assign requested address"), -#endif -#if defined (ENETDOWN) -  ENTRY(ENETDOWN, "ENETDOWN", "Network is down"), -#endif -#if defined (ENETUNREACH) -  ENTRY(ENETUNREACH, "ENETUNREACH", "Network is unreachable"), -#endif -#if defined (ENETRESET) -  ENTRY(ENETRESET, "ENETRESET", "Network dropped connection because of reset"), -#endif -#if defined (ECONNABORTED) -  ENTRY(ECONNABORTED, "ECONNABORTED", "Software caused connection abort"), -#endif -#if defined (ECONNRESET) -  ENTRY(ECONNRESET, "ECONNRESET", "Connection reset by peer"), -#endif -#if defined (ENOBUFS) -  ENTRY(ENOBUFS, "ENOBUFS", "No buffer space available"), -#endif -#if defined (EISCONN) -  ENTRY(EISCONN, "EISCONN", "Transport endpoint is already connected"), -#endif -#if defined (ENOTCONN) -  ENTRY(ENOTCONN, "ENOTCONN", "Transport endpoint is not connected"), -#endif -#if defined (ESHUTDOWN) -  ENTRY(ESHUTDOWN, "ESHUTDOWN", "Cannot send after transport endpoint shutdown"), -#endif -#if defined (ETOOMANYREFS) -  ENTRY(ETOOMANYREFS, "ETOOMANYREFS", "Too many references: cannot splice"), -#endif -#if defined (ETIMEDOUT) -  ENTRY(ETIMEDOUT, "ETIMEDOUT", "Connection timed out"), -#endif -#if defined (ECONNREFUSED) -  ENTRY(ECONNREFUSED, "ECONNREFUSED", "Connection refused"), -#endif -#if defined (EHOSTDOWN) -  ENTRY(EHOSTDOWN, "EHOSTDOWN", "Host is down"), -#endif -#if defined (EHOSTUNREACH) -  ENTRY(EHOSTUNREACH, "EHOSTUNREACH", "No route to host"), -#endif -#if defined (EALREADY) -  ENTRY(EALREADY, "EALREADY", "Operation already in progress"), -#endif -#if defined (EINPROGRESS) -  ENTRY(EINPROGRESS, "EINPROGRESS", "Operation now in progress"), -#endif -#if defined (ESTALE) -  ENTRY(ESTALE, "ESTALE", "Stale NFS file handle"), -#endif -#if defined (EUCLEAN) -  ENTRY(EUCLEAN, "EUCLEAN", "Structure needs cleaning"), -#endif -#if defined (ENOTNAM) -  ENTRY(ENOTNAM, "ENOTNAM", "Not a XENIX named type file"), -#endif -#if defined (ENAVAIL) -  ENTRY(ENAVAIL, "ENAVAIL", "No XENIX semaphores available"), -#endif -#if defined (EISNAM) -  ENTRY(EISNAM, "EISNAM", "Is a named type file"), -#endif -#if defined (EREMOTEIO) -  ENTRY(EREMOTEIO, "EREMOTEIO", "Remote I/O error"), -#endif -  ENTRY(0, NULL, NULL) -}; - -#ifdef EVMSERR -/* This is not in the table, because the numeric value of EVMSERR (32767) -   lies outside the range of sys_errlist[].  */ -static struct { int value; const char *name, *msg; } -  evmserr = { EVMSERR, "EVMSERR", "VMS-specific error" }; -#endif - -/* Translation table allocated and initialized at runtime.  Indexed by the -   errno value to find the equivalent symbolic value. */ - -static const char **error_names; -static int num_error_names = 0; - -/* Translation table allocated and initialized at runtime, if it does not -   already exist in the host environment.  Indexed by the errno value to find -   the descriptive string. - -   We don't export it for use in other modules because even though it has the -   same name, it differs from other implementations in that it is dynamically -   initialized rather than statically initialized. */ - -#ifndef HAVE_SYS_ERRLIST - -#define sys_nerr sys_nerr__ -#define sys_errlist sys_errlist__ -static int sys_nerr; -static const char **sys_errlist; - -#else - -extern int sys_nerr; -extern char *sys_errlist[]; - -#endif - -/* - -NAME - -	init_error_tables -- initialize the name and message tables - -SYNOPSIS - -	static void init_error_tables (); - -DESCRIPTION - -	Using the error_table, which is initialized at compile time, generate -	the error_names and the sys_errlist (if needed) tables, which are -	indexed at runtime by a specific errno value. - -BUGS - -	The initialization of the tables may fail under low memory conditions, -	in which case we don't do anything particularly useful, but we don't -	bomb either.  Who knows, it might succeed at a later point if we free -	some memory in the meantime.  In any case, the other routines know -	how to deal with lack of a table after trying to initialize it.  This -	may or may not be considered to be a bug, that we don't specifically -	warn about this particular failure mode. - -*/ - -static void -init_error_tables () -{ -  const struct error_info *eip; -  int nbytes; - -  /* If we haven't already scanned the error_table once to find the maximum -     errno value, then go find it now. */ - -  if (num_error_names == 0) -    { -      for (eip = error_table; eip -> name != NULL; eip++) -	{ -	  if (eip -> value >= num_error_names) -	    { -	      num_error_names = eip -> value + 1; -	    } -	} -    } - -  /* Now attempt to allocate the error_names table, zero it out, and then -     initialize it from the statically initialized error_table. */ - -  if (error_names == NULL) -    { -      nbytes = num_error_names * sizeof (char *); -      if ((error_names = (const char **) malloc (nbytes)) != NULL) -	{ -	  memset (error_names, 0, nbytes); -	  for (eip = error_table; eip -> name != NULL; eip++) -	    { -	      error_names[eip -> value] = eip -> name; -	    } -	} -    } - -#ifndef HAVE_SYS_ERRLIST - -  /* Now attempt to allocate the sys_errlist table, zero it out, and then -     initialize it from the statically initialized error_table. */ - -  if (sys_errlist == NULL) -    { -      nbytes = num_error_names * sizeof (char *); -      if ((sys_errlist = (const char **) malloc (nbytes)) != NULL) -	{ -	  memset (sys_errlist, 0, nbytes); -	  sys_nerr = num_error_names; -	  for (eip = error_table; eip -> name != NULL; eip++) -	    { -	      sys_errlist[eip -> value] = eip -> msg; -	    } -	} -    } - -#endif - -} - -/* - - -@deftypefn Extension int errno_max (void) - -Returns the maximum @code{errno} value for which a corresponding -symbolic name or message is available.  Note that in the case where we -use the @code{sys_errlist} supplied by the system, it is possible for -there to be more symbolic names than messages, or vice versa.  In -fact, the manual page for @code{perror(3C)} explicitly warns that one -should check the size of the table (@code{sys_nerr}) before indexing -it, since new error codes may be added to the system before they are -added to the table.  Thus @code{sys_nerr} might be smaller than value -implied by the largest @code{errno} value defined in @code{<errno.h>}. - -We return the maximum value that can be used to obtain a meaningful -symbolic name or message. - -@end deftypefn - -*/ - -int -errno_max () -{ -  int maxsize; - -  if (error_names == NULL) -    { -      init_error_tables (); -    } -  maxsize = MAX (sys_nerr, num_error_names); -  return (maxsize - 1); -} - -#ifndef HAVE_STRERROR - -/* - -@deftypefn Supplemental char* strerror (int @var{errnoval}) - -Maps an @code{errno} number to an error message string, the contents -of which are implementation defined.  On systems which have the -external variables @code{sys_nerr} and @code{sys_errlist}, these -strings will be the same as the ones used by @code{perror}. - -If the supplied error number is within the valid range of indices for -the @code{sys_errlist}, but no message is available for the particular -error number, then returns the string @samp{Error @var{num}}, where -@var{num} is the error number. - -If the supplied error number is not a valid index into -@code{sys_errlist}, returns @code{NULL}. - -The returned string is only guaranteed to be valid only until the -next call to @code{strerror}. - -@end deftypefn - -*/ - -char * -strerror (errnoval) -  int errnoval; -{ -  const char *msg; -  static char buf[32]; - -#ifndef HAVE_SYS_ERRLIST - -  if (error_names == NULL) -    { -      init_error_tables (); -    } - -#endif - -  if ((errnoval < 0) || (errnoval >= sys_nerr)) -    { -#ifdef EVMSERR -      if (errnoval == evmserr.value) -	msg = evmserr.msg; -      else -#endif -      /* Out of range, just return NULL */ -      msg = NULL; -    } -  else if ((sys_errlist == NULL) || (sys_errlist[errnoval] == NULL)) -    { -      /* In range, but no sys_errlist or no entry at this index. */ -      sprintf (buf, "Error %d", errnoval); -      msg = buf; -    } -  else -    { -      /* In range, and a valid message.  Just return the message. */ -      msg = (char *) sys_errlist[errnoval]; -    } -   -  return (msg); -} - -#endif	/* ! HAVE_STRERROR */ - - -/* - -@deftypefn Replacement {const char*} strerrno (int @var{errnum}) - -Given an error number returned from a system call (typically returned -in @code{errno}), returns a pointer to a string containing the -symbolic name of that error number, as found in @code{<errno.h>}. - -If the supplied error number is within the valid range of indices for -symbolic names, but no name is available for the particular error -number, then returns the string @samp{Error @var{num}}, where @var{num} -is the error number. - -If the supplied error number is not within the range of valid -indices, then returns @code{NULL}. - -The contents of the location pointed to are only guaranteed to be -valid until the next call to @code{strerrno}. - -@end deftypefn - -*/ - -const char * -strerrno (errnoval) -  int errnoval; -{ -  const char *name; -  static char buf[32]; - -  if (error_names == NULL) -    { -      init_error_tables (); -    } - -  if ((errnoval < 0) || (errnoval >= num_error_names)) -    { -#ifdef EVMSERR -      if (errnoval == evmserr.value) -	name = evmserr.name; -      else -#endif -      /* Out of range, just return NULL */ -      name = NULL; -    } -  else if ((error_names == NULL) || (error_names[errnoval] == NULL)) -    { -      /* In range, but no error_names or no entry at this index. */ -      sprintf (buf, "Error %d", errnoval); -      name = (const char *) buf; -    } -  else -    { -      /* In range, and a valid name.  Just return the name. */ -      name = error_names[errnoval]; -    } - -  return (name); -} - -/* - -@deftypefn Extension int strtoerrno (const char *@var{name}) - -Given the symbolic name of a error number (e.g., @code{EACCES}), map it -to an errno value.  If no translation is found, returns 0. - -@end deftypefn - -*/ - -int -strtoerrno (name) -     const char *name; -{ -  int errnoval = 0; - -  if (name != NULL) -    { -      if (error_names == NULL) -	{ -	  init_error_tables (); -	} -      for (errnoval = 0; errnoval < num_error_names; errnoval++) -	{ -	  if ((error_names[errnoval] != NULL) && -	      (strcmp (name, error_names[errnoval]) == 0)) -	    { -	      break; -	    } -	} -      if (errnoval == num_error_names) -	{ -#ifdef EVMSERR -	  if (strcmp (name, evmserr.name) == 0) -	    errnoval = evmserr.value; -	  else -#endif -	  errnoval = 0; -	} -    } -  return (errnoval); -} - - -/* A simple little main that does nothing but print all the errno translations -   if MAIN is defined and this file is compiled and linked. */ - -#ifdef MAIN - -#include <stdio.h> - -int -main () -{ -  int errn; -  int errnmax; -  const char *name; -  const char *msg; -  char *strerror (); - -  errnmax = errno_max (); -  printf ("%d entries in names table.\n", num_error_names); -  printf ("%d entries in messages table.\n", sys_nerr); -  printf ("%d is max useful index.\n", errnmax); - -  /* Keep printing values until we get to the end of *both* tables, not -     *either* table.  Note that knowing the maximum useful index does *not* -     relieve us of the responsibility of testing the return pointer for -     NULL. */ - -  for (errn = 0; errn <= errnmax; errn++) -    { -      name = strerrno (errn); -      name = (name == NULL) ? "<NULL>" : name; -      msg = strerror (errn); -      msg = (msg == NULL) ? "<NULL>" : msg; -      printf ("%-4d%-18s%s\n", errn, name, msg); -    } - -  return 0; -} - -#endif | 
