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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* s_init_next.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 <dirent.h>
#include <errno.h>
#include <libft.h>
#ifdef __linux__
# include <linux/limits.h>
#else
# include <limits.h>
#endif
#include <paths.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "b_export_next.h"
#include "f_fail.h"
#include "s_destroy.h"
#include "s_struct.h"
#include "u_vars.h"
#include "u_vars_next.h"
char s_inc_shlvl(t_msh *msh)
{
char fmt[8];
char tmp[255];
char str[255];
int shlvl;
u_get_var_value(tmp, "$SHLVL", 255, msh);
if (tmp[0] == C_NUL)
{
ft_memcpy(fmt, "SHLVL=1", 8);
b_export_with_equals(fmt, msh);
}
else
{
shlvl = ft_atoi(tmp);
if (shlvl >= 999)
f_shlvl_too_high(shlvl);
shlvl = (shlvl >= 999) ? 0 : shlvl;
shlvl = (shlvl < 0) ? 0 : shlvl + 1;
ft_itoa_s(str, shlvl);
if (u_subst_var_value("$SHLVL", str, msh) == 1)
{
return (1);
}
}
return (0);
}
char **s_dupenv_del(char **nenvp, unsigned long i)
{
while (i > 0)
{
ft_memdel((void*)&nenvp[i]);
i--;
}
ft_memdel((void*)&nenvp);
return (NULL);
}
static char s_cpy_path(char **ptr, char *nenvp[], size_t *i)
{
char tmp[255];
if (*ptr != NULL)
return (0);
if (*ptr == NULL)
{
ft_sprintf(tmp, "PATH=%s", _PATH_STDPATH);
if ((nenvp[*i] = ft_strdup(tmp)) == NULL)
return (1);
*(i) += 1;
}
return (0);
}
char **s_dupenv(char *const envp[])
{
size_t i;
char **nenvp;
char **ptr;
ptr = (char**)envp;
while (*ptr != NULL && ft_strncmp(*ptr, "PATH=", 5) != 0)
ptr++;
i = 0;
while (envp[i] != NULL)
i++;
i += (*ptr == NULL) ? (1) : (0);
if ((nenvp = (char**)malloc((i + 1) * sizeof(char*))) == NULL)
return (NULL);
i = 0;
while (envp[i] != NULL)
{
if ((nenvp[i] = ft_strdup(envp[i])) == NULL)
return (s_dupenv_del(nenvp, i));
i++;
}
if (s_cpy_path(ptr, nenvp, &i) == 1)
return (s_dupenv_del(nenvp, i));
nenvp[i] = NULL;
return (nenvp);
}
void s_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)
{
if (getcwd(cwd, PATH_MAX) != NULL)
{
ft_sprintf(fmt, "%s=%s", "PWD", cwd);
b_export_with_equals(fmt, msh);
}
else
ft_dprintf(STDERR_FILENO, "minishell: %s\n", strerror(errno));
return ;
}
if ((dir = opendir(cwd)) != NULL)
closedir(dir);
else if (errno == ENOENT)
{
if (getcwd(cwd, PATH_MAX) != NULL)
{
ft_sprintf(fmt, "%s=%s", "PWD", cwd);
b_export_with_equals(fmt, msh);
}
else
ft_dprintf(STDERR_FILENO, "minishell: %s\n", strerror(errno));
return ;
}
}
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