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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* s_init.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:19:27 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:19:29 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <dirent.h>
#include <errno.h>
#include "b_export_next.h"
#include "d_define.h"
#include "f_fail.h"
#include "m_funptr.h"
#include "s_init.h"
#include "u_vars.h"
#include "u_vars_next.h"
static void
s_init_sqb_ref_one(t_msh *msh)
{
ft_memcpy(msh->sqb_ref[FT_ID_SQB_B], FT_SQB_B, ft_strlen(FT_SQB_B) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_C], FT_SQB_C, ft_strlen(FT_SQB_C) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_D], FT_SQB_D, ft_strlen(FT_SQB_D) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_E], FT_SQB_E, ft_strlen(FT_SQB_E) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_F], FT_SQB_F, ft_strlen(FT_SQB_F) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_H], FT_SQB_H, ft_strlen(FT_SQB_H) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_N], FT_SQB_N, ft_strlen(FT_SQB_N) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_P], FT_SQB_P, ft_strlen(FT_SQB_P) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_R], FT_SQB_R, ft_strlen(FT_SQB_R) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_S], FT_SQB_S, ft_strlen(FT_SQB_S) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_W], FT_SQB_W, ft_strlen(FT_SQB_W) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_X], FT_SQB_X, ft_strlen(FT_SQB_X) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_Z], FT_SQB_Z, ft_strlen(FT_SQB_Z) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_L_MAJ],
FT_SQB_L_MAJ, ft_strlen(FT_SQB_L_MAJ) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_S_MAJ],
FT_SQB_S_MAJ, ft_strlen(FT_SQB_S_MAJ) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_NT], FT_SQB_NT, ft_strlen(FT_SQB_NT) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_OT], FT_SQB_OT, ft_strlen(FT_SQB_OT) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_EQUA],
FT_SQB_EQUA, ft_strlen(FT_SQB_EQUA) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_DIFF],
FT_SQB_DIFF, ft_strlen(FT_SQB_DIFF) + 1);
}
static void
s_init_sqb_ref_two(t_msh *msh)
{
ft_memcpy(msh->sqb_ref[FT_ID_SQB_EQ], FT_SQB_EQ, ft_strlen(FT_SQB_EQ) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_NE], FT_SQB_NE, ft_strlen(FT_SQB_NE) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_GT], FT_SQB_GT, ft_strlen(FT_SQB_GT) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_GE], FT_SQB_GE, ft_strlen(FT_SQB_GE) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_LT], FT_SQB_LT, ft_strlen(FT_SQB_LT) + 1);
ft_memcpy(msh->sqb_ref[FT_ID_SQB_LE], FT_SQB_LE, ft_strlen(FT_SQB_LE) + 1);
}
static char
**dupenv_del(char **nenvp,
uint64_t i)
{
while (i > 0)
{
ft_memdel((void*)&nenvp[i]);
i--;
}
ft_memdel((void*)&nenvp);
return (NULL);
}
static char
**dupenv(char *const envp[])
{
uint64_t i;
char **nenvp;
i = 0;
while (envp[i])
{
i++;
}
if (!(nenvp = (char**)malloc((i + 1) * sizeof(char*))))
{
return (NULL);
}
i = 0;
while (envp[i])
{
if (!(nenvp[i] = ft_strdup(envp[i])))
return (dupenv_del(nenvp, i));
i++;
}
nenvp[i] = NULL;
return (nenvp);
}
static void
inc_shlvl(t_msh *msh)
{
char fmt[8];
char tmp[255];
char *str;
int32_t shlvl;
u_get_var_value(tmp, "$SHLVL", 255, msh);
if (tmp[0] == C_NUL)
{
ft_memcpy(fmt, "SHLVL=1", 8);
b_export_with_equals(fmt, msh);
}
else
{
shlvl = ft_atoi(tmp);
if (shlvl >= 999)
f_shlvl_too_high(shlvl);
shlvl = (shlvl >= 999) ? 0 : shlvl;
shlvl = (shlvl < 0) ? 0 : shlvl + 1;
str = ft_itoa(shlvl);
u_subst_var_value("$SHLVL", str, msh);
ft_memdel((void*)&str);
}
}
static void
set_cwd(char cwd[], t_msh *msh)
{
char fmt[PATH_MAX];
DIR *dir;
u_get_var_value(cwd, "$PWD", PATH_MAX, msh);
if (cwd[0] == C_NUL)
{
getcwd(cwd, PATH_MAX);
ft_sprintf(fmt, "%s=%s", "PWD", cwd);
b_export_with_equals(fmt, msh);
return ;
}
if ((dir = opendir(cwd)) != NULL)
closedir(dir);
else if (errno == ENOENT)
{
getcwd(cwd, PATH_MAX);
ft_sprintf(fmt, "%s=%s", "PWD", cwd);
b_export_with_equals(fmt, msh);
return ;
}
}
t_msh
*init_msh(char *const argv[], char *const envp[])
{
char cwd[PATH_MAX];
t_msh *msh;
if ((msh = (t_msh*)malloc(sizeof(t_msh))) == NULL)
return (NULL);
if ((msh->shname = ft_strdup(argv[0])) == NULL)
return (NULL);
msh->envp = NULL;
if ((msh->envp = dupenv(envp)) == NULL)
return (NULL);
msh->ret = 0;
init_buptr(msh);
msh->curr = NULL;
msh->com = NULL;
msh->pipes = NULL;
msh->vars = NULL;
msh->alias = NULL;
set_cwd(cwd, msh);
if ((msh->cwd = ft_strdup(cwd)) == NULL)
return (NULL);
msh->env_fork_tmp[0][0] = '\0';
inc_shlvl(msh);
s_init_sqb_ref_one(msh);
s_init_sqb_ref_two(msh);
return (msh);
}
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