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Annotation of 43BSD/contrib/mh/sbr/advertise.c, revision 1.1

1.1     ! root        1: /* advertise.c - the heart of adios */
        !             2: 
        !             3: #include "../h/mh.h"
        !             4: #include <stdio.h>
        !             5: #ifdef BSD42
        !             6: #include <sys/types.h>
        !             7: #include <sys/uio.h>
        !             8: #endif BSD42
        !             9: 
        !            10: /* For 4.2BSD systems, use writev() for slightly better performance.  Why?
        !            11:    Well, there are a couple of reasons.  Primarily, it gives a smoother
        !            12:    output...  More importantly though, it's a sexy syscall()...
        !            13:  */
        !            14: 
        !            15: extern int  errno;
        !            16: extern int  sys_nerr;
        !            17: extern char *sys_errlist[];
        !            18: 
        !            19: /*  */
        !            20: 
        !            21: /* VARARGS3 */
        !            22: 
        !            23: void advertise (what, tail, fmt, a, b, c, d, e, f)
        !            24: char   *what,
        !            25:        *tail,
        !            26:        *fmt,
        !            27:        *a,
        !            28:        *b,
        !            29:        *c,
        !            30:        *d,
        !            31:        *e,
        !            32:        *f;
        !            33: {
        !            34:     int            eindex = errno;
        !            35: #ifdef BSD42
        !            36:     char    buffer[BUFSIZ],
        !            37:             err[BUFSIZ];
        !            38:     struct iovec    iob[20];
        !            39:     register struct iovec  *iov = iob;
        !            40: #endif BSD42
        !            41: 
        !            42:     (void) fflush (stdout);
        !            43: 
        !            44: #ifndef        BSD42
        !            45:     fprintf (stderr, "%s: ", invo_name);
        !            46:     fprintf (stderr, fmt, a, b, c, d, e, f);
        !            47:     if (what) {
        !            48:        if (*what)
        !            49:            fprintf (stderr, " %s: ", what);
        !            50:        if (eindex > 0 && eindex < sys_nerr)
        !            51:            fprintf (stderr, "%s", sys_errlist[eindex]);
        !            52:        else
        !            53:            fprintf (stderr, "Error %d", eindex);
        !            54:     }
        !            55:     if (tail)
        !            56:        fprintf (stderr, ", %s", tail);
        !            57:     (void) fputc ('\n', stderr);
        !            58: #else  BSD42
        !            59:     (void) fflush (stderr);
        !            60: 
        !            61:     iov -> iov_len = strlen (iov -> iov_base = invo_name);
        !            62:     iov++;
        !            63:     iov -> iov_len = strlen (iov -> iov_base = ": ");
        !            64:     iov++;
        !            65:     
        !            66:     (void) sprintf (buffer, fmt, a, b, c, d, e, f);
        !            67:     iov -> iov_len = strlen (iov -> iov_base = buffer);
        !            68:     iov++;
        !            69:     if (what) {
        !            70:        if (*what) {
        !            71:            iov -> iov_len = strlen (iov -> iov_base = " ");
        !            72:            iov++;
        !            73:            iov -> iov_len = strlen (iov -> iov_base = what);
        !            74:            iov++;
        !            75:            iov -> iov_len = strlen (iov -> iov_base = ": ");
        !            76:            iov++;
        !            77:        }
        !            78:        if (eindex > 0 && eindex < sys_nerr)
        !            79:            iov -> iov_len = strlen (iov -> iov_base = sys_errlist[eindex]);
        !            80:        else {
        !            81:            (void) sprintf (err, "Error %d", eindex);
        !            82:            iov -> iov_len = strlen (iov -> iov_base = err);
        !            83:        }
        !            84:        iov++;
        !            85:     }
        !            86:     if (tail && *tail) {
        !            87:        iov -> iov_len = strlen (iov -> iov_base = ", ");
        !            88:        iov++;
        !            89:        iov -> iov_len = strlen (iov -> iov_base = tail);
        !            90:        iov++;
        !            91:     }
        !            92:     iov -> iov_len = strlen (iov -> iov_base = "\n");
        !            93:     iov++;
        !            94:     (void) writev (fileno (stderr), iob, iov - iob);
        !            95: #endif BSD42
        !            96: }

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