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/************************************************
etc.c -
$Author: matz $
$Date: 1999/08/13 05:37:47 $
created at: Tue Mar 22 18:39:19 JST 1994
************************************************/
#include "ruby.h"
#ifdef HAVE_GETPWENT
#include <pwd.h>
#endif
#ifdef HAVE_GETGRENT
#include <grp.h>
#endif
static VALUE sPasswd, sGroup;
static VALUE
etc_getlogin(obj)
VALUE obj;
{
char *getenv();
char *login;
#ifdef HAVE_GETLOGIN
char *getlogin();
login = getlogin();
if (!login) login = getenv("USER");
#else
login = getenv("USER");
#endif
if (login)
return rb_tainted_str_new2(login);
return Qnil;
}
#ifdef HAVE_GETPWENT
static VALUE
setup_passwd(pwd)
struct passwd *pwd;
{
if (pwd == 0) rb_sys_fail("/etc/passwd");
return rb_struct_new(sPasswd,
rb_tainted_str_new2(pwd->pw_name),
rb_tainted_str_new2(pwd->pw_passwd),
INT2FIX(pwd->pw_uid),
INT2FIX(pwd->pw_gid),
#ifdef PW_GECOS
rb_tainted_str_new2(pwd->pw_gecos),
#endif
rb_tainted_str_new2(pwd->pw_dir),
rb_tainted_str_new2(pwd->pw_shell),
#ifdef PW_CHANGE
INT2FIX(pwd->pw_change),
#endif
#ifdef PW_QUOTA
INT2FIX(pwd->pw_quota),
#endif
#ifdef PW_AGE
INT2FIX(pwd->pw_age),
#endif
#ifdef PW_CLASS
rb_tainted_str_new2(pwd->pw_class),
#endif
#ifdef PW_COMMENT
rb_tainted_str_new2(pwd->pw_comment),
#endif
#ifdef PW_EXPIRE
INT2FIX(pwd->pw_expire),
#endif
0 /*dummy*/
);
}
#endif
static VALUE
etc_getpwuid(argc, argv, obj)
int argc;
VALUE *argv;
VALUE obj;
{
#ifdef HAVE_GETPWENT
VALUE id;
int uid;
struct passwd *pwd;
if (rb_scan_args(argc, argv, "01", &id) == 1) {
uid = NUM2INT(id);
}
else {
uid = getuid();
}
pwd = getpwuid(uid);
if (pwd == 0) rb_raise(rb_eArgError, "can't find user for %d", uid);
return setup_passwd(pwd);
#else
return Qnil;
#endif
}
static VALUE
etc_getpwnam(obj, nam)
VALUE obj, nam;
{
#ifdef HAVE_GETPWENT
struct passwd *pwd;
Check_Type(nam, T_STRING);
pwd = getpwnam(RSTRING(nam)->ptr);
if (pwd == 0) rb_raise(rb_eArgError, "can't find user for %s", RSTRING(nam)->ptr);
return setup_passwd(pwd);
#else
return Qnil;
#endif
}
static VALUE
etc_passwd(obj)
VALUE obj;
{
#ifdef HAVE_GETPWENT
struct passwd *pw;
if (rb_iterator_p()) {
setpwent();
while (pw = getpwent()) {
rb_yield(setup_passwd(pw));
}
endpwent();
return obj;
}
if (pw = getpwent()) {
return setup_passwd(pw);
}
#endif
return Qnil;
}
#ifdef HAVE_GETGRENT
static VALUE
setup_group(grp)
struct group *grp;
{
VALUE mem;
char **tbl;
mem = rb_ary_new();
tbl = grp->gr_mem;
while (*tbl) {
rb_ary_push(mem, rb_tainted_str_new2(*tbl));
tbl++;
}
return rb_struct_new(sGroup,
rb_tainted_str_new2(grp->gr_name),
rb_tainted_str_new2(grp->gr_passwd),
INT2FIX(grp->gr_gid),
mem);
}
#endif
static VALUE
etc_getgrgid(obj, id)
VALUE obj, id;
{
#ifdef HAVE_GETGRENT
int gid;
struct group *grp;
gid = NUM2INT(id);
grp = getgrgid(gid);
if (grp == 0) rb_raise(rb_eArgError, "can't find group for %d", gid);
return setup_group(grp);
#else
return Qnil;
#endif
}
static VALUE
etc_getgrnam(obj, nam)
VALUE obj, nam;
{
#ifdef HAVE_GETGRENT
struct group *grp;
Check_Type(nam, T_STRING);
grp = getgrnam(RSTRING(nam)->ptr);
if (grp == 0) rb_raise(rb_eArgError, "can't find group for %s", RSTRING(nam)->ptr);
return setup_group(grp);
#else
return Qnil;
#endif
}
static VALUE
etc_group(obj)
VALUE obj;
{
#ifdef HAVE_GETGRENT
struct group *grp;
if (rb_iterator_p()) {
setgrent();
while (grp = getgrent()) {
rb_yield(setup_group(grp));
}
endgrent();
return obj;
}
if (grp = getgrent()) {
return setup_group(grp);
}
#endif
return Qnil;
}
static VALUE mEtc;
void
Init_etc()
{
mEtc = rb_define_module("Etc");
rb_define_module_function(mEtc, "getlogin", etc_getlogin, 0);
rb_define_module_function(mEtc, "getpwuid", etc_getpwuid, -1);
rb_define_module_function(mEtc, "getpwnam", etc_getpwnam, 1);
rb_define_module_function(mEtc, "passwd", etc_passwd, 0);
rb_define_module_function(mEtc, "getgrgid", etc_getgrgid, 1);
rb_define_module_function(mEtc, "getgrnam", etc_getgrnam, 1);
rb_define_module_function(mEtc, "group", etc_group, 0);
sPasswd = rb_struct_define("Passwd",
"name", "passwd", "uid", "gid",
#ifdef PW_GECOS
"gecos",
#endif
"dir", "shell",
#ifdef PW_CHANGE
"change",
#endif
#ifdef PW_QUOTA
"quota",
#endif
#ifdef PW_AGE
"age",
#endif
#ifdef PW_CLASS
"class",
#endif
#ifdef PW_COMMENT
"comment",
#endif
#ifdef PW_EXPIRE
"expire",
#endif
0);
rb_global_variable(&sPasswd);
#ifdef HAVE_GETGRENT
sGroup = rb_struct_define("Group", "name", "passwd", "gid", "mem", 0);
rb_global_variable(&sGroup);
#endif
}
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