reactos/lib/msvcrt/string/strerror.c

   1 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
   2 #include <msvcrti.h>
   3
   4
   5 char __syserr00[] = "No Error";
   6 char __syserr01[] = "Operation not permitted (EPERM)";
   7 char __syserr02[] = "No such file or directory (ENOENT)";
   8 char __syserr03[] = "No such process (ESRCH)";
   9 char __syserr04[] = "Interrupted system call (EINTR)";
  10 char __syserr05[] = "Input or output error (EIO)";
  11 char __syserr06[] = "No such device or address (ENXIO)";
  12 char __syserr07[] = "Argument list too long (E2BIG)";
  13 char __syserr08[] = "Unable to execute file (ENOEXEC)";
  14 char __syserr09[] = "Bad file descriptor (EBADF)";
  15 char __syserr10[] = "No child processes (ECHILD)";
  16 char __syserr11[] = "Resource temporarily unavailable (EAGAIN)";
  17 char __syserr12[] = "Not enough memory (ENOMEM)";
  18 char __syserr13[] = "Permission denied (EACCES)";
  19 char __syserr14[] = "Bad address (EFAULT)";
  20 char __syserr15[] = "Unknown Error: 15";
  21 char __syserr16[] = "Resource busy (EBUSY)";
  22 char __syserr17[] = "File exists (EEXIST)";
  23 char __syserr18[] = "Improper link (EXDEV)";
  24 char __syserr19[] = "No such device (ENODEV)";
  25 char __syserr20[] = "Not a directory (ENOTDIR)";
  26 char __syserr21[] = "Is a directory (EISDIR)";
  27 char __syserr22[] = "Invalid argument (EINVAL)";
  28 char __syserr23[] = "Too many open files in system (ENFILE)";
  29 char __syserr24[] = "Too many open files (EMFILE)";
  30 char __syserr25[] = "Inappropriate I/O control operation (ENOTTY)";
  31 char __syserr26[] = "Unknown error: 26";
  32 char __syserr27[] = "File too large (EFBIG)";
  33 char __syserr28[] = "No space left on drive (ENOSPC)";
  34 char __syserr29[] = "Invalid seek (ESPIPE)";
  35 char __syserr30[] = "Read-only file system (EROFS)";
  36 char __syserr31[] = "Too many links (EMLINK)";
  37 char __syserr32[] = "Broken pipe (EPIPE)";
  38 char __syserr33[] = "Input to function out of range (EDOM)";
  39 char __syserr34[] = "Output of function out of range (ERANGE)";
  40 char __syserr35[] = "Unknown error: 35";
  41 char __syserr36[] = "Resource deadlock avoided (EDEADLK)";
  42 char __syserr37[] = "Unknown error: 37";
  43 char __syserr38[] = "File name too long (ENAMETOOLONG)";
  44 char __syserr39[] = "No locks available (ENOLCK)";
  45 char __syserr40[] = "Function not implemented (ENOSYS)";
  46 char __syserr41[] = "Directory not empty (ENOTEMPTY)";
  47 char __syserr42[] = "Illegal byte sequence (EILSEQ)";
  48
  49
  50
  51
  52 char *_sys_errlist[] = {
  53 __syserr00, __syserr01, __syserr02, __syserr03, __syserr04,
  54 __syserr05, __syserr06, __syserr07, __syserr08, __syserr09,
  55 __syserr10, __syserr11, __syserr12, __syserr13, __syserr14,
  56 __syserr15, __syserr16, __syserr17, __syserr18, __syserr19,
  57 __syserr20, __syserr21, __syserr22, __syserr23, __syserr24,
  58 __syserr25, __syserr26, __syserr27, __syserr28, __syserr29,
  59 __syserr30, __syserr31, __syserr32, __syserr33, __syserr34,
  60 __syserr35, __syserr36, __syserr37, __syserr38, __syserr39,
  61 __syserr40, __syserr41, __syserr42
  62 };
  63
  64 #undef _sys_nerr
  65
  66 int _sys_nerr = sizeof(_sys_errlist) / sizeof(_sys_errlist[0]);
  67
  68 char *strerror(int errnum)
  69 {
  70   static char ebuf[40];         /* 64-bit number + slop */
  71   char *cp;
  72   int v=1000000, lz=0;
  73
  74   if (errnum >= 0 && errnum < _sys_nerr)
  75     return((char *)_sys_errlist[errnum]);
  76
  77   strcpy(ebuf, "Unknown error: ");
  78   cp = ebuf + 15;
  79   if (errnum < 0)
  80   {
  81     *cp++ = '-';
  82     errnum = -errnum;
  83   }
  84   while (v)
  85   {
  86     int d = errnum / v;
  87     if (d || lz || (v == 1))
  88     {
  89       *cp++ = d+'0';
  90       lz = 1;
  91     }
  92     errnum %= v;
  93     v /= 10;
  94   }
  95
  96   return ebuf;
  97 }
  98
  99
 100 char *_strerror(const char *s)
 101 {
 102         if ( s == NULL )
 103                 return strerror(errno);
 104
 105         return strerror(atoi(s));
 106 }