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C/C++ Source or Header  |  1987-10-19  |  317 b   |  18 lines
  1. /*
  2.  * strerror - map error number to descriptive string
  3.  *
  4.  * This version is obviously somewhat Unix-specific.
  5.  */
  6. char *
  7. strerror(errnum)
  8. int errnum;
  9. {
  10.     extern int errno, sys_nerr;
  11.     extern char *sys_errlist[];
  12.  
  13.     if (errnum > 0 && errnum < sys_nerr)
  14.         return(sys_errlist[errnum]);
  15.     else
  16.         return("unknown error");
  17. }
  18.