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Annotation of 43BSD/lib/libc/compat-sys5/strcatn.c, revision 1.1.1.1

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: 
                      7: #if defined(LIBC_SCCS) && !defined(lint)
                      8: static char sccsid[] = "@(#)strcatn.c  4.3 (Berkeley) 3/9/86";
                      9: #endif LIBC_SCCS and not lint
                     10: 
                     11: /*
                     12:  * Concatenate s2 on the end of s1.  S1's space must be large enough.
                     13:  * At most n characters are moved.
                     14:  * Return s1.
                     15:  */
                     16: 
                     17: char *
                     18: strcatn(s1, s2, n)
                     19: register char *s1, *s2;
                     20: register n;
                     21: {
                     22:        register char *os1;
                     23: 
                     24:        os1 = s1;
                     25:        while (*s1++)
                     26:                ;
                     27:        --s1;
                     28:        while (*s1++ = *s2++)
                     29:                if (--n < 0) {
                     30:                        *--s1 = '\0';
                     31:                        break;
                     32:                }
                     33:        return(os1);
                     34: }

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