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/*
* Mach Operating System
* Copyright (c) 1991 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* Character subroutines
*/
#include <varargs.h>
#define EXPORT_BOOLEAN
#include <mach/boolean.h>
/*
* Concatenate a group of strings together into a buffer.
* Return a pointer to the trailing '\0' character in
* the result string.
* The list of strings ends with a '(char *)0'.
*/
/*VARARGS1*/
char *
strbuild(dest, va_alist)
register char * dest;
va_dcl
{
va_list argptr;
register char * src;
register int c;
va_start(argptr);
while ((src = va_arg(argptr, char *)) != (char *)0) {
while ((c = *src++) != '\0')
*dest++ = c;
}
*dest = '\0';
return (dest);
}
/*
* Return TRUE if string 2 is a prefix of string 1.
*/
boolean_t
strprefix(s1, s2)
register char *s1, *s2;
{
register int c;
while ((c = *s2++) != '\0') {
if (c != *s1++)
return (FALSE);
}
return (TRUE);
}
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