42_minishell/utils/ft_strreplace.c

#include "utils.h"

int	ft_strreplace(char **str, char *fill, size_t start, size_t stop)
{
	char	*out;
	size_t	sum;

	out = malloc((ft_strlen(str) + ft_strlen(fill) - (stop - start) + 1 * sizeof(char)));
	if (out == NULL)
		return (1);
	ft_strncpy(out, str, start);
	ft_strncpy(out + start, fill, ft_strlen(fill));
	sum = start + ft_strlen(fill);
	ft_strncpy(out + sum, str + stop, ft_strlen(str) - stop);
	out[sum + ft_strlen(str) - stop] = '\0';
	free(*str);
	*str = out;
	return (0);
}