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#include <stdlib.h>
#include <string.h>
#include "_safety.h"
/** collate strings **/
int strcoll(const char *s1, const char *s2)
{
char *x1 = NULL;
char *x2 = NULL;
int ret = 0;
SIGNAL_SAFE(0);
ASSERT_NONNULL(s1);
ASSERT_NONNULL(s2);
/* no modification, overlap is OK */
DANGEROUS_READ(s1, -1);
x1 = malloc(strxfrm(x1, s1, 0));
DANGER_OVER();
DANGEROUS_READ(s2, -1);
x2 = malloc(strxfrm(x2, s2, 0));
DANGER_OVER();
if (x1 && x2) {
strxfrm(x1, s1, 0);
strxfrm(x2, s2, 0);
ret = strcmp(x1, x2);
}
free(x1);
free(x2);
/*
RETURN(NEGATIVE, ARGUMENT(s1) collates before ARGUMENT(s2));
RETURN(ZERO, ARGUMENT(s1) collates equal to ARGUMENT(s2));
RETURN(POSITIVE, ARGUMENT(s1) collates after ARGUMENT(s2));
*/
return ret;
}
CHECK_2(int, 0, strcoll, const char *, const char *)
/***
compares the collation values of the strings at ARGUMENT(s1) and ARGUMENT(s2).
***/
/*
LC_COLLATE
STDC(1)
*/
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