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Annotation of 43BSDTahoe/new/news/src/uname.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * This software is Copyright (c) 1986 by Rick Adams.
        !             3:  *
        !             4:  * Permission is hereby granted to copy, reproduce, redistribute or
        !             5:  * otherwise use this software as long as: there is no monetary
        !             6:  * profit gained specifically from the use or reproduction or this
        !             7:  * software, it is not sold, rented, traded or otherwise marketed, and
        !             8:  * this copyright notice is included prominently in any copy
        !             9:  * made.
        !            10:  *
        !            11:  * The author make no claims as to the fitness or correctness of
        !            12:  * this software for any use whatsoever, and it is provided as is. 
        !            13:  * Any use of this software is at the user's own risk.
        !            14:  *
        !            15:  * This routine is compatible with the Unix T/S system call uname,
        !            16:  * which figures out the name of the local system.
        !            17:  * However, we do it by reading the file /usr/include/whoami.h.
        !            18:  * This avoids having to recompile uucp for each site and hence
        !            19:  * avoids having to distribute the source to uucp to people who
        !            20:  * have only binary licenses.
        !            21:  */
        !            22: 
        !            23: #ifdef SCCSID
        !            24: static char    *SccsId = "@(#)uname.c  2.16    9/24/87";
        !            25: #endif /* SCCSID */
        !            26: 
        !            27: #ifdef BSD2_10
        !            28: #include <shortnames.h>
        !            29: #endif /* BSD2_10 */
        !            30: 
        !            31: #include "params.h"
        !            32: 
        !            33: #ifdef UNAME
        !            34: # define DONE
        !            35: #endif /* UNAME */
        !            36: 
        !            37: #ifdef GHNAME
        !            38: uname(uptr)
        !            39: struct utsname *uptr;
        !            40: {
        !            41:        char *cp;
        !            42:        extern char *mydomain();
        !            43:        gethostname(uptr->nodename, sizeof (uptr->nodename));
        !            44:        cp = mydomain();
        !            45:        if (*cp == '\0') /* get domain name from hostname */
        !            46:                return;
        !            47:        cp = index(uptr->nodename, '.');
        !            48:        if (cp)
        !            49:                *cp = '\0';
        !            50: }
        !            51: # define DONE
        !            52: #endif
        !            53: 
        !            54: #ifdef UUNAME
        !            55: uname(uptr)
        !            56: struct utsname *uptr;
        !            57: {
        !            58:        FILE *uucpf;
        !            59:        register char *p;
        !            60:        /* uucp name is stored UUNAME */
        !            61: 
        !            62:        if (((uucpf = fopen(UUNAME, "r")) == NULL) ||
        !            63:                fgets(uptr->nodename, sizeof (uptr->nodename), uucpf) == NULL) {
        !            64:                        fprintf(stderr, "no sysname in %s\n", UUNAME);
        !            65:                        return;
        !            66:        }
        !            67:        p = index(uptr->nodename, '\n');
        !            68:        if (p)
        !            69:                *p = '\0';
        !            70:        if (uucpf != NULL)
        !            71:                fclose(uucpf);
        !            72: }
        !            73: #define DONE
        !            74: #endif /* UUNAME */
        !            75: 
        !            76: #ifndef DONE
        !            77: #define        HDRFILE "/usr/include/whoami.h"
        !            78: 
        !            79: uname(uptr)
        !            80: struct utsname *uptr;
        !            81: {
        !            82:        char buf[BUFSIZ];
        !            83:        FILE *fd;
        !            84:        
        !            85:        fd = fopen(HDRFILE, "r");
        !            86:        if (fd == NULL) {
        !            87:                fprintf(stderr, "Cannot open %s\n", HDRFILE);
        !            88:                exit(1);
        !            89:        }
        !            90:        
        !            91:        for (;;) {      /* each line in the file */
        !            92:                if (fgets(buf, sizeof buf, fd) == NULL) {
        !            93:                        fprintf(stderr, "no sysname in %s\n", HDRFILE);
        !            94:                        fclose(fd);
        !            95:                        exit(2);
        !            96:                }
        !            97:                if (sscanf(buf, "#define sysname \"%[^\"]\"", uptr->nodename) == 1) {
        !            98:                        fclose(fd);
        !            99:                        return;
        !           100:                }
        !           101:        }
        !           102: }
        !           103: #endif

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