File: strcase.c

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#include <linux/ctype.h>

int strcasecmp(const char *s1, const char *s2)
{
	int c1, c2;

	do {
		c1 = tolower(*s1++);
		c2 = tolower(*s2++);
	} while (c1 == c2 && c1 != 0);
	return c1 - c2;
}

int strncasecmp(const char *s1, const char *s2, int n)
{
	int c1, c2;

	do {
		c1 = tolower(*s1++);
		c2 = tolower(*s2++);
	} while ((--n > 0) && c1 == c2 && c1 != 0);
	return c1 - c2;
}