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/* $Id: util.c 4 2024-09-11 10:22:22Z nishi $ */

#include "kn_util.h"

#include <string.h>
#include <stdlib.h>

char* kn_strcat(const char* a, const char* b) {
        char* str = malloc(strlen(a) + strlen(b) + 1);
        memcpy(str, a, strlen(a));
        memcpy(str + strlen(a), b, strlen(b));
        str[strlen(a) + strlen(b)] = 0;
        return str;
}

char* kn_strcat3(const char* a, const char* b, const char* c) {
        char* tmp = kn_strcat(a, b);
        char* str = kn_strcat(tmp, c);
        free(tmp);
        return str;
}

char* kn_strdup(const char* a) { return kn_strcat(a, ""); }