diff options
Diffstat (limited to 'src/u_vars_next.c')
| -rw-r--r-- | src/u_vars_next.c | 55 |
1 files changed, 49 insertions, 6 deletions
diff --git a/src/u_vars_next.c b/src/u_vars_next.c index 5626376..8134de3 100644 --- a/src/u_vars_next.c +++ b/src/u_vars_next.c @@ -10,21 +10,64 @@ /* */ /* ************************************************************************** */ +#include <libft.h> +#include <inttypes.h> +#include <stdlib.h> + #include "s_struct.h" + +static int64_t + u_get_var_line(const char varname[], + t_msh *msh) +{ + char **env_ptr; + int64_t i; + + env_ptr = msh->envp; + i = 0; + while (*env_ptr && + ft_strncmp(*env_ptr, varname, ft_strlen(varname)) != 0) + { + env_ptr++; + i++; + } + if (*env_ptr) + return (i); + else + return (-1); +} + /* ** void -** subst_var_value(const char varname[], t_msh *msh); +** u_subst_var_value(const char varname[], const char newval[], t_msh *msh); ** ** DESCRIPTION -** The subst_var_value() changes the msh->envp value -** of the variable varname[]. If varname[] wasn't found +** The subst_var_value() changes the value of msh->envp +** variable varname[] with newval[]. If varname[] wasn't found ** in msh->envp, varname[] is searched in msh->vars. */ void - subst_var_value(const char varname[], + u_subst_var_value(const char varname[], + const char newval[], t_msh *msh) { - (void)varname; - (void)msh; + char new_line_fmt[2048]; + int64_t env_line; + + if ((env_line = u_get_var_line(varname + 1, msh)) > -1) + { + ft_memdel((void*)&msh->envp[env_line]); + ft_sprintf(new_line_fmt, "%s=%s", varname + 1, newval); + if (!(msh->envp[env_line] = + (char*)malloc((ft_strlen(new_line_fmt) + 1) * sizeof(char)))) + { + /* TODO: Handle this fail */ + } + (void)ft_strlcpy(msh->envp[env_line], new_line_fmt, ft_strlen(new_line_fmt) + 1); + } + else + { + /* TODO: Search in custom vars */ + } } |