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Annotation of researchv10no/cmd/nupas/ipc/sun_err.c, revision 1.1.1.1

1.1       root        1: /*
                      2:        Error codes on SGI MIPS system:
                      3: 
                      4: EX_USAGE       64      command line usage error
                      5: EX_DATAERR     65      data format error
                      6: EX_NOINPUT     66      cannot open input
                      7: EX_NOUSER      67      addressee unknown
                      8: EX_NOHOST      68      host name unknown:
                      9:                                unknown service
                     10:                                        gethostbyname if host not found.)
                     11:                                connection timed out
                     12: EX_UNAVAILABLE 69      service unavailable
                     13: EX_SOFTWARE    70      internal software error
                     14: EX_OSERR       71      system error (e.g., can't fork)
                     15: EX_OSFILE      72      critical OS file missing
                     16: EX_CANTCREAT   73      can't create (user) output file
                     17: EX_IOERR       74      input/output error
                     18: EX_TEMPFAIL    75      temp failure; user is invited to retry
                     19:                                Connection refused (code returned by
                     20: EX_PROTOCOL    76      remote error in protocol
                     21: EX_NOPERM      77      permission denied
                     22: */
                     23: 
                     24: #include <errno.h>
                     25: #include <stdio.h>
                     26: #include <sysexits.h>
                     27: #include <string.h>
                     28: 
                     29: extern char *sys_errlist[ ];
                     30: extern int sys_nerr;
                     31: 
                     32: extern int ipcdebug;
                     33: 
                     34: /*
                     35:  * A known place to keep a copy of the system-supplied
                     36:  * error message.
                     37:  */
                     38: int syserrno;
                     39: char syserrstr[128];
                     40: 
                     41: 
                     42: /*
                     43:  * Copy the actual OS-supplied errno and string in a known
                     44:  * place.
                     45:  */
                     46: ipcgetsyserr()
                     47: {
                     48:        syserrno = errno;
                     49:        if (ipcdebug)
                     50:                fprintf(stderr, "ipcgetsyserr: errno=%d\n", syserrno);
                     51:        if (errno < sys_nerr)
                     52:                strcpy(syserrstr, sys_errlist[errno]);
                     53:        else
                     54:                sprintf(syserrstr, "Unknown error number %d", errno);
                     55: }
                     56: 
                     57: /*
                     58:  * map the system error in syserrno into one of the
                     59:  * errors in sysexits.h
                     60:  */
                     61: int
                     62: ipcmaperror()
                     63: {
                     64:        switch (syserrno) {
                     65:        case EAGAIN:
                     66:        case ENFILE:
                     67:        case EMFILE:
                     68:        case ENOSPC:
                     69:        case ENETDOWN:
                     70:        case ENETUNREACH:
                     71:        case ENETRESET:
                     72:        case ECONNABORTED:
                     73:        case ECONNRESET:
                     74:        case ENOBUFS:
                     75:        case ETIMEDOUT:
                     76:        case ECONNREFUSED:
                     77:                                return EX_TEMPFAIL;
                     78:        case EHOSTDOWN:
                     79:        case EHOSTUNREACH:
                     80:                                return EX_NOHOST;
                     81: 
                     82:        default:                return EX_OSERR;
                     83:        }
                     84: }

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