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Annotation of 43BSD/usr.lib/libU77/link_.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)link_.c     5.1     6/7/85
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * make a link to an existing file
        !            11:  *
        !            12:  * calling sequence:
        !            13:  *     ierror = link(name1, name2)
        !            14:  * where:
        !            15:  *     name1 is the pathname of an existing file
        !            16:  *     name2 is a pathname to be linked to file name1
        !            17:  *     ierror will be 0 if successful; a system error code otherwise.
        !            18:  */
        !            19: 
        !            20: #include "../libI77/f_errno.h"
        !            21: #include <sys/param.h>
        !            22: #ifndef        MAXPATHLEN
        !            23: #define MAXPATHLEN     128
        !            24: #endif
        !            25: 
        !            26: long link_(name1, name2, n1len, n2len)
        !            27: char *name1, *name2;
        !            28: long n1len, n2len;
        !            29: {
        !            30:        char buf1[MAXPATHLEN];
        !            31:        char buf2[MAXPATHLEN];
        !            32: 
        !            33:        if (n1len >= sizeof buf1 || n2len >= sizeof buf2)
        !            34:                return((long)(errno=F_ERARG));
        !            35:        g_char(name1, n1len, buf1);
        !            36:        g_char(name2, n2len, buf2);
        !            37:        if (buf1[0] == '\0' || buf2[0] == '\0')
        !            38:                return((long)(errno=F_ERARG));
        !            39:        if (link(buf1, buf2) != 0)
        !            40:                return((long)errno);
        !            41:        return(0L);
        !            42: }

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