155 lines
4.1 KiB
C
155 lines
4.1 KiB
C
#include "get_next_line.h"
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/*
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** //:set noendofline binary
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** //https://github.com/lgrellie/gnl_tester
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** //https://github.com/Mazoise/42TESTERS-GNL
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** //https://github.com/charMstr/GNL_lover
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** //https://github.com/mrjvs/42cursus_gnl_tests
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** //https://github.com/Sherchryst/gnlkiller
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** //https://github.com/Hellio404/Get_Next_Line_Tester
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** //https://github.com/TinfoilPancakes/get-next-line-testing-tools
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**
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** #include <stdio.h> //for printf
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** #include <fcntl.h> //for open
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**
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** void ft_putchar(char c){
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** write(1, &c, 1);
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** }
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**
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** void ft_putstr(char *s)
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** {
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** while (s && *s)
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** ft_putchar(*s++);
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** }
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**
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** void ft_putnbr(int n)
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** {
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** long l;
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**
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** l = n;
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** if (l < 0)
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** {
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** ft_putchar('-');
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** l *= -1;
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** }
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** if (l >= 10)
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** ft_putnbr(l / 10);
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** ft_putchar((l % 10) + '0');
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** }
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**
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** int main(int ac, char **av)
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** {
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** int *fd;
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** int i = 0;
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** int j = 0;
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** int ret;
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** char *line = NULL;
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**
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** fd = (int *)malloc(sizeof(int) * ac);
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** while (++i <= ac - 1)
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** fd[i - 1] = open(av[i], O_RDONLY);
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** i = 0;
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** while (j < ac - 1)
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** {
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** if ((ret = get_next_line(fd[i], &line)) > 0)
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** {
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** printf(" [fd%i-%i] \n", fd[i], ret );
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** free(line);
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** j = 0;
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** }
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** else if (ret == -1)
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** {
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** printf("[fd%i-%i]*ERROR*\n", fd[i], ret);
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** free(line);
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** j++;
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** }
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** else if (*line != '\0')
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** printf(" [fd%i-%i] \n", fd[i], ret);
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** else
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** {
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** printf("[fd%i-%i]*FINI*\n", fd[i], ret);
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** free(line);
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** j++;
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** }
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** i++;
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** if (i >= ac - 1)
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** i = 0;
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** }
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** free(fd);
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** //while (1);
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** return (0);
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** }
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*/
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int free_lst(t_gnlist **lst, int ret)
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{
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t_gnlist *tmp;
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tmp = *lst; // t_gnlist *tmp2;/*ft_putstr("\n");*/ft_putstr("(");
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while (tmp->next != *lst)
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{ // ft_putnbr(tmp->lfd);ft_putstr("-");
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tmp = tmp->next;
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} // ft_putnbr(tmp->lfd);ft_putstr("-(");ft_putnbr(tmp->next->lfd);ft_putstr("))");
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tmp->next = (*lst)->next; // ft_putstr("->(");ft_putnbr(tmp->lfd);ft_putstr("-");ft_putnbr(tmp->next->lfd);ft_putstr(")");
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free((*lst)->str);
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free(*lst);
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*lst = (*lst == tmp) ? NULL : tmp; // tmp2=tmp;ft_putstr("(");while(tmp2->next!=tmp){ft_putnbr(tmp2->lfd);ft_putstr("-");tmp2=tmp2->next;}ft_putnbr(tmp2->lfd);ft_putstr("-(");ft_putnbr(tmp2->next->lfd);ft_putstr("))");
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return (ret);
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}
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int multi_fd(int fd, t_gnlist **lst)
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{
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t_gnlist *tmp;
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tmp = *lst; // t_gnlist *tmp2;ft_putstr(" multi(fd:");ft_putnbr(fd);ft_putstr("-(check:");tmp2=tmp;while(tmp2 && tmp2->next!=tmp){ft_putnbr(tmp2->lfd);ft_putstr("-");tmp2=tmp2->next;}if(tmp2)ft_putnbr(tmp2->lfd);ft_putstr(")-(start:");
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while (*lst && (*lst)->lfd != fd && (*lst)->next != tmp)
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{ // ft_putnbr((*lst)->lfd);ft_putstr("-");
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*lst = (*lst)->next;
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} // if(*lst)ft_putnbr((*lst)->lfd);ft_putstr(")-(");
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if (!tmp || ((*lst)->next == tmp && (*lst)->lfd != fd))
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{ // ft_putstr("create ");
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if (!(tmp = (t_gnlist*)malloc(sizeof(*tmp))))
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return (0);
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tmp->lfd = fd;
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if (!(tmp->str = ft_strdup("")))
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return (0);
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if (*lst)
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{
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tmp->next = (*lst)->next;
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(*lst)->next = tmp;
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}
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else
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tmp->next = tmp;
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*lst = tmp;
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} // ft_putstr("lfd:");ft_putnbr((*lst)->lfd);ft_putstr(")-(");tmp2=*lst;while(tmp2->next!=*lst){ft_putnbr(tmp2->lfd);ft_putstr("-");tmp2=tmp2->next;}ft_putnbr(tmp2->lfd);ft_putstr("-(");ft_putnbr(tmp2->next->lfd);ft_putstr("))");
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return (1);
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}
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int get_next_line(const int fd, char **line)
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{
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char buf[BUFFER_SIZE + 1];
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int ret;
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static t_gnlist *lst = NULL;
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char *str;
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ret = 1;
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if (!(multi_fd(fd, &lst)) || !line || BUFFER_SIZE < 1)
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return (free_lst(&lst, -1));
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while (!(str = ft_strchr(lst->str, '\n')) && ret != 0)
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{
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if ((ret = read(fd, buf, BUFFER_SIZE)) < 0)
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return (free_lst(&lst, -1));
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buf[ret] = '\0';
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if (!(lst->str = ft_strjoinfree(lst->str, buf)))
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return (free_lst(&lst, -1));
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}
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if (str != NULL)
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str[0] = '\0';
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if (!(*line = ft_strdup(lst->str)))
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return (free_lst(&lst, -1));
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if (str != NULL)
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return(ft_memmove(lst->str, str + 1, ft_strlen(str + 1) + 1) != NULL);
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return (free_lst(&lst, 0));
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}
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