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get_line.c
executable file
·84 lines (79 loc) · 1.39 KB
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get_line.c
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#include "main.h"
/**
* bring_line - assigns the line var for get_line
* @lineptr: Buffer that store the input str
* @buffer: str that is been called to line
* @n: size of line
* @j: size of buffer
*/
void bring_line(char **lineptr, size_t *n, char *buffer, size_t j)
{
if (*lineptr == NULL)
{
if (j > BUFSIZE)
*n = j;
else
*n = BUFSIZE;
*lineptr = buffer;
}
else if (*n < j)
{
if (j > BUFSIZE)
*n = j;
else
*n = BUFSIZE;
*lineptr = buffer;
}
else
{
_strcpy(*lineptr, buffer);
free(buffer);
}
}
/**
* get_line - Read inpt from stream
* @lineptr: buffer that stores the input
* @n: size of lineptr
* @stream: stream to read from
* Return: The number of bytes
*/
ssize_t get_line(char **lineptr, size_t *n, FILE *stream)
{
int i;
static ssize_t input;
ssize_t retval;
char *buffer;
char t = 'z';
if (input == 0)
fflush(stream);
else
return (-1);
input = 0;
buffer = malloc(sizeof(char) * BUFSIZE);
if (buffer == 0)
return (-1);
while (t != '\n')
{
i = read(STDIN_FILENO, &t, 1);
if (i == -1 || (i == 0 && input == 0))
{
free(buffer);
return (-1);
}
if (i == 0 && input != 0)
{
input++;
break;
}
if (input >= BUFSIZE)
buffer = _realloc(buffer, input, input + 1);
buffer[input] = t;
input++;
}
buffer[input] = '\0';
bring_line(lineptr, n, buffer, input);
retval = input;
if (i != 0)
input = 0;
return (retval);
}