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CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v102/clib/strncpy.c

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+/**********************************************************************
+*   STRNCPY  -  copies at most n chars from one string to another
+*
+*	BYTE *strcpy(s1,s2,n)
+*	BYTE *s1, *s2;
+*	UWORD n;
+*
+*	Copies at most n bytes from s2 to s1, stopping after null 
+*	  has been moved.
+*	Truncates or null-pads s2, depending on n.
+*	Returns s1.
+*	No check for overflow of s1.
+***********************************************************************/
+
+#include <portab.h>
+
+BYTE *strncpy(s1,s2,n)
+REG	BYTE *s1, *s2;
+REG	WORD n;
+{	REG BYTE *cp;
+
+	for( cp=s1; n-- > 0 && (*cp = *s2); cp++,s2++ ) /* isn't C fun?	*/
+		;
+	n++;				/* bump n back up.		*/
+	while( n-- )			/* while #chars != 0		*/
+		*cp++ = ZERO;		/*   null pad.			*/
+	return(s1);
+}