Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/src/ape/lib/ap/gen/strncat.c

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


#include <string.h>

char*
strncat(char *s1, const char *s2, size_t n)
{
	char *os1;
	long nn;

	os1 = s1;
	nn = n;
	while(*s1++)
		;
	s1--;
	while(*s1++ = *s2++)
		if(--nn < 0) {
			s1[-1] = 0;
			break;
		}
	return os1;
}

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