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get_next_line_utils_bonus.c
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get_next_line_utils_bonus.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line_utils_bonus.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: toramo <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/10 13:22:15 by toramo #+# #+# */
/* Updated: 2023/11/10 13:22:17 by toramo ### ########.fr */
/* */
/* ************************************************************************** */
#include "get_next_line.h"
void *ft_memmove_gnl(void *dst, const void *src, size_t len)
{
unsigned char *tdst;
unsigned char *tsrc;
tdst = (unsigned char *)dst;
tsrc = (unsigned char *)src;
if (dst < src)
{
while (len)
{
*tdst = *tsrc;
tdst++;
tsrc++;
len--;
}
return (dst);
}
if (dst > src)
while (len--)
tdst[len] = tsrc[len];
return (dst);
}
int ft_strlen_gnl(char *str, int len, int flag)
{
int i;
i = 0;
if (flag == 0)
{
while (i < len)
{
if (str[i] == '\n')
return (1);
i++;
}
return (0);
}
else
{
while (str[i] != '\n' && i < len)
i++;
if (str[i] == '\n' && i < len)
i++;
return (i);
}
}
char *free_if_exists(char *str, int *in_buffer)
{
if (in_buffer)
*in_buffer = 0;
if (str)
free(str);
return (0);
}
char *cp_and_move(char *str, int *strlen, int *in_buffer, char *buf)
{
char *temp;
int to_write;
if (*in_buffer < 0)
return (str);
to_write = ft_strlen_gnl(buf, *in_buffer, 1);
temp = str;
str = malloc(sizeof(char) * (*strlen + to_write));
if (!str)
return (free_if_exists(temp, in_buffer));
ft_memmove_gnl(str, temp, *strlen);
free_if_exists(temp, 0);
ft_memmove_gnl(&str[*strlen], buf, to_write);
*strlen += to_write;
if (to_write < *in_buffer)
{
ft_memmove_gnl(buf, &buf[to_write], *in_buffer - to_write);
*in_buffer = *in_buffer - to_write;
return (str);
}
else
{
*in_buffer = 0;
return (str);
}
}
char *gnl_insert_null(char *str, int strlen)
{
char *temp;
if (strlen == 0)
return (0);
temp = str;
str = malloc(sizeof(char) * (strlen + 1));
if (!str)
{
free(temp);
return (0);
}
ft_memmove_gnl(str, temp, strlen);
free(temp);
str[strlen] = 0;
return (str);
}