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Annotation of 42BSD/lib/libc/vax/gen/strncat.c, revision 1.1.1.1

1.1       root        1: /* @(#)strncat.c       4.1 (Berkeley) 12/21/80 */
                      2: /*
                      3:  * Concatenate s2 on the end of s1.  S1's space must be large enough.
                      4:  * At most n characters are moved.
                      5:  * Return s1.
                      6:  */
                      7: 
                      8: char *
                      9: strncat(s1, s2, n)
                     10: register char *s1, *s2;
                     11: register n;
                     12: {
                     13:        register char *os1;
                     14: 
                     15:        os1 = s1;
                     16:        while (*s1++)
                     17:                ;
                     18:        --s1;
                     19:        while (*s1++ = *s2++)
                     20:                if (--n < 0) {
                     21:                        *--s1 = '\0';
                     22:                        break;
                     23:                }
                     24:        return(os1);
                     25: }

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