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Annotation of 42BSD/usr.lib/libU77/link_.c, revision 1.1.1.1

1.1       root        1: /*
                      2: char id_link[] = "@(#)link_.c  1.2";
                      3:  *
                      4:  * make a link to an existing file
                      5:  *
                      6:  * calling sequence:
                      7:  *     ierror = link(name1, name2)
                      8:  * where:
                      9:  *     name1 is the pathname of an existing file
                     10:  *     name2 is a pathname to be linked to file name1
                     11:  *     ierror will be 0 if successful; a system error code otherwise.
                     12:  */
                     13: 
                     14: #include "../libI77/f_errno.h"
                     15: #include <sys/param.h>
                     16: #ifndef        MAXPATHLEN
                     17: #define MAXPATHLEN     128
                     18: #endif
                     19: 
                     20: long link_(name1, name2, n1len, n2len)
                     21: char *name1, *name2;
                     22: long n1len, n2len;
                     23: {
                     24:        char buf1[MAXPATHLEN];
                     25:        char buf2[MAXPATHLEN];
                     26: 
                     27:        if (n1len >= sizeof buf1 || n2len >= sizeof buf2)
                     28:                return((long)(errno=F_ERARG));
                     29:        g_char(name1, n1len, buf1);
                     30:        g_char(name2, n2len, buf2);
                     31:        if (buf1[0] == '\0' || buf2[0] == '\0')
                     32:                return((long)(errno=F_ERARG));
                     33:        if (link(buf1, buf2) != 0)
                     34:                return((long)errno);
                     35:        return(0L);
                     36: }

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