minix/lib/ip/strcasecmp.c
2005-04-21 14:53:53 +00:00

43 lines
651 B
C
Executable file

/*
strcasecmp.c
Created Oct 14, 1991 by Philip Homburg
*/
#include <ctype.h>
#include <string.h>
#ifdef __STDC__
#define _CONST const
#else
#define _CONST
#endif
int
strcasecmp(s1, s2)
_CONST char *s1, *s2;
{
int c1, c2;
while (c1= toupper(*s1++), c2= toupper(*s2++), c1 == c2 && (c1 & c2))
;
if (c1 & c2)
return c1 < c2 ? -1 : 1;
return c1 ? 1 : (c2 ? -1 : 0);
}
int
strncasecmp(s1, s2, len)
_CONST char *s1, *s2;
size_t len;
{
int c1, c2;
do {
if (len == 0)
return 0;
len--;
} while (c1= toupper(*s1++), c2= toupper(*s2++), c1 == c2 && (c1 & c2))
;
if (c1 & c2)
return c1 < c2 ? -1 : 1;
return c1 ? 1 : (c2 ? -1 : 0);
}