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#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
#include <malloc.h>
#define PROMPT ">"
void
getline(char *buf,int *num,int max_num)
{
static int line_len = 0;
static char *line = NULL;
static char *line_pointer = NULL;
static int len = 0;
int tmp_len;
char *buff;
if (len <= 0) {
buff = readline(PROMPT);
add_history(buff);
if ((tmp_len = strlen(buff)) > line_len) {
free(line);
line = malloc(tmp_len);
line_len = tmp_len;
}
sprintf(line,"%s\n",buff);
free(buff);
line_pointer = line;
len = strlen(line);
}
*num = max_num > len? len : max_num;
strncpy(buf,line_pointer,*num);
line_pointer = line_pointer + *num;
len = len - *num;
}
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