116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* init.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2021/10/08 09:22:12 by lperrey #+# #+# */
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/* Updated: 2021/12/08 21:54:36 by lperrey ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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static char *init_prompt_base(void);
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static int init_readline_hook(void);
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static int shlvl_init(void);
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int init(t_all *c)
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{
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ft_bzero(c, sizeof (*c));
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rl_outstream = stderr;
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rl_startup_hook = init_readline_hook;
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readline(NULL);
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rl_startup_hook = NULL;
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environ = ft_dup_2d_arr(environ, (t_dup_f)ft_strdup);
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if (!environ)
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return (ft_reti_perror(0, "ft_dup_2d_arr(environ)"));
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c->path = retrieve_path();
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if (!shlvl_init())
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return (ft_reti_perror(0, "shlvl_init()"));
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c->prompt_base = init_prompt_base();
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if (!c->prompt_base)
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return (ft_reti_perror(0, "init_prompt_base()"));
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c->prompt = init_prompt(c->prompt_base);
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if (!c->prompt)
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return (ft_reti_perror(0, "init_prompt()"));
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set_signals_behaviour();
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return (1);
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}
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static int shlvl_init(void)
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{
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char *tmp;
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int ret;
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tmp = getenv("SHLVL");
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if (tmp && ft_isdigit_str(tmp))
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{
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tmp = ft_itoa(ft_atoi(tmp) + 1);
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if (!tmp)
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return (0);
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tmp = ft_strjoinfree_s2("SHLVL=", tmp);
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if (!tmp)
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return (0);
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ret = export_var(tmp);
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free(tmp);
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}
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else
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ret = export_var("SHLVL=1");
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if (ret == -1)
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return (0);
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return (1);
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}
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static char *init_prompt_base(void)
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{
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char *prompt_base;
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char *tmp;
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tmp = getenv("USER");
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if (!tmp)
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tmp = getenv("LOGNAME");
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if (!tmp)
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tmp = U_DEFAULT_USER;
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prompt_base = ft_strjoin(TERM_LIGHT_GREEN, tmp);
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if (!prompt_base)
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return (NULL);
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prompt_base = ft_strjoinfree_s1(prompt_base, "@");
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if (!prompt_base)
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return (NULL);
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tmp = getenv("NAME");
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if (!tmp)
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tmp = U_DEFAULT_NAME;
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prompt_base = ft_strjoinfree_s1(prompt_base, tmp);
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if (!prompt_base)
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return (NULL);
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prompt_base = ft_strjoinfree_s1(prompt_base, TERM_RESET":"TERM_LIGHT_BLUE);
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if (!prompt_base)
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return (NULL);
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return (prompt_base);
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}
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char *init_prompt(char *prompt_base)
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{
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char *prompt;
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prompt = ft_strjoinfree_s2(prompt_base, getcwd(NULL, 0));
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if (!prompt)
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return (NULL);
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prompt = ft_strjoinfree_s1(prompt, TERM_RESET U_PROMPT_END);
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if (!prompt)
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return (NULL);
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return (prompt);
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}
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/*
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** set rl_startup_hook with this, for init COLUMNS and LINES variables
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** and prevent leak/double_free with **environ
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*/
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static int init_readline_hook(void)
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{
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rl_done = 1;
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return (0);
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}
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