--- /dev/null
+/* Copyright (C) 2003, 2004, 2005 Thorsten Kukuk
+ Author: Thorsten Kukuk <kukuk@suse.de>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 or
+ later as published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+
+#include "getdef.h"
+
+struct item {
+ char *name; /* Name of the option. */
+ char *value; /* Value of the option. */
+ struct item *next; /* Pointer to next option. */
+};
+
+static struct item *list = NULL;
+
+void
+free_getdef_data (void)
+{
+ struct item *ptr;
+
+ ptr = list;
+ while (ptr != NULL)
+ {
+ struct item *tmp;
+ tmp = ptr->next;
+ free (ptr->name);
+ free (ptr->value);
+ free (ptr);
+ ptr = tmp;
+ }
+
+ list = NULL;
+}
+
+/* Add a new entry to the list. */
+static void
+store (const char *name, const char *value)
+{
+ struct item *new = malloc (sizeof (struct item));
+
+ if (new == NULL)
+ abort ();
+
+ if (name == NULL)
+ abort ();
+
+ new->name = strdup (name);
+ new->value = strdup (value ?: "");
+ new->next = list;
+ list = new;
+}
+
+/* Search a special entry in the list and return the value. */
+static const char *
+search (const char *name)
+{
+ struct item *ptr;
+
+ ptr = list;
+ while (ptr != NULL)
+ {
+ if (strcasecmp (name, ptr->name) == 0)
+ return ptr->value;
+ ptr = ptr->next;
+ }
+
+ return NULL;
+}
+
+/* Load the login.defs file (/etc/login.defs). */
+static void
+load_defaults_internal (const char *filename)
+{
+ FILE *fp;
+ char *buf = NULL;
+ size_t buflen = 0;
+
+ fp = fopen (filename, "r");
+ if (NULL == fp)
+ return;
+
+ while (!feof (fp))
+ {
+ char *tmp, *cp;
+#if defined(HAVE_GETLINE)
+ ssize_t n = getline (&buf, &buflen, fp);
+#elif defined (HAVE_GETDELIM)
+ ssize_t n = getdelim (&buf, &buflen, '\n', fp);
+#else
+ ssize_t n;
+
+ if (buf == NULL)
+ {
+ buflen = 8096;
+ buf = malloc (buflen);
+ }
+ buf[0] = '\0';
+ fgets (buf, buflen - 1, fp);
+ if (buf != NULL)
+ n = strlen (buf);
+ else
+ n = 0;
+#endif /* HAVE_GETLINE / HAVE_GETDELIM */
+ cp = buf;
+
+ if (n < 1)
+ break;
+
+ tmp = strchr (cp, '#'); /* remove comments */
+ if (tmp)
+ *tmp = '\0';
+ while (isspace ((unsigned char) *cp)) /* remove spaces and tabs */
+ ++cp;
+ if (*cp == '\0') /* ignore empty lines */
+ continue;
+
+ if (cp[strlen (cp) - 1] == '\n')
+ cp[strlen (cp) - 1] = '\0';
+
+ tmp = strsep (&cp, " \t=");
+ if (cp != NULL)
+ while (isspace ((unsigned char) *cp) || *cp == '=')
+ ++cp;
+
+ store (tmp, cp);
+ }
+ fclose (fp);
+
+ if (buf)
+ free (buf);
+}
+
+static void
+load_defaults (void)
+{
+ load_defaults_internal ("/etc/default/su");
+ load_defaults_internal ("/etc/login.defs");
+}
+
+int
+getdef_bool (const char *name, int dflt)
+{
+ const char *val;
+
+ if (list == NULL)
+ load_defaults ();
+
+ val = search (name);
+
+ if (val == NULL)
+ return dflt;
+
+ return (strcasecmp (val, "yes") == 0);
+}
+
+long
+getdef_num (const char *name, long dflt)
+{
+ const char *val;
+ char *cp;
+ long retval;
+
+ if (list == NULL)
+ load_defaults ();
+
+ val = search (name);
+
+ if (val == NULL)
+ return dflt;
+
+ errno = 0;
+ retval = strtol (val, &cp, 0);
+ if (*cp != '\0'
+ || ((retval == LONG_MAX || retval == LONG_MIN) && errno == ERANGE))
+ {
+ fprintf (stderr,
+ "%s contains invalid numerical value: %s!\n",
+ name, val);
+ retval = dflt;
+ }
+ return retval;
+}
+
+unsigned long
+getdef_unum (const char *name, unsigned long dflt)
+{
+ const char *val;
+ char *cp;
+ unsigned long retval;
+
+ if (list == NULL)
+ load_defaults ();
+
+ val = search (name);
+
+ if (val == NULL)
+ return dflt;
+
+ errno = 0;
+ retval = strtoul (val, &cp, 0);
+ if (*cp != '\0' || (retval == ULONG_MAX && errno == ERANGE))
+ {
+ fprintf (stderr,
+ "%s contains invalid numerical value: %s!\n",
+ name, val);
+ retval = dflt;
+ }
+ return retval;
+}
+
+const char *
+getdef_str (const char *name, const char *dflt)
+{
+ const char *retval;
+
+ if (list == NULL)
+ load_defaults ();
+
+ retval = search (name);
+
+ return retval ?: dflt;
+}
+
+#if defined(TEST)
+
+int
+main ()
+{
+ printf ("CYPT=%s\n", getdef_str ("cRypt", "no"));
+ printf ("LOG_UNKFAIL_ENAB=%s\n", getdef_str ("log_unkfail_enab",""));
+ printf ("DOESNOTEXIST=%s\n", getdef_str ("DOESNOTEXIST","yes"));
+ return 0;
+}
+
+#endif
--- /dev/null
+/* Copyright (C) 2003, 2005 Thorsten Kukuk
+ Author: Thorsten Kukuk <kukuk@suse.de>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 or
+ later as published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef _GETDEF_H_
+
+#define _GETDEF_H_ 1
+
+extern int getdef_bool (const char *name, int dflt);
+extern long getdef_num (const char *name, long dflt);
+extern unsigned long getdef_unum (const char *name, unsigned long dflt);
+extern const char *getdef_str (const char *name, const char *dflt);
+
+/* Free all data allocated by getdef_* calls before. */
+extern void free_getdef_data (void);
+
+#endif /* _GETDEF_H_ */
# include <paths.h>
#endif
+#include "getdef.h"
+
/* The default PATH for simulated logins to non-superuser accounts. */
#define DEFAULT_LOGIN_PATH "/usr/local/bin:/bin:/usr/bin"
xsetenv ("USER", pw->pw_name);
xsetenv ("LOGNAME", pw->pw_name);
xsetenv ("PATH", (pw->pw_uid
- ? DEFAULT_LOGIN_PATH
- : DEFAULT_ROOT_LOGIN_PATH));
+ ? getdef_str ("PATH", DEFAULT_LOGIN_PATH)
+ : getdef_str ("SUPATH", DEFAULT_ROOT_LOGIN_PATH)));
}
else
{
/* Set HOME, SHELL, and if not becoming a super-user,
USER and LOGNAME. */
if (change_environment)
- {
- xsetenv ("HOME", pw->pw_dir);
- xsetenv ("SHELL", shell);
- if (pw->pw_uid)
- {
- xsetenv ("USER", pw->pw_name);
- xsetenv ("LOGNAME", pw->pw_name);
- }
- }
+ {
+ xsetenv ("HOME", pw->pw_dir);
+ xsetenv ("SHELL", shell);
+ if (getdef_bool ("ALWAYS_SET_PATH", 0))
+ xsetenv ("PATH", (pw->pw_uid
+ ? getdef_str ("PATH",
+ DEFAULT_LOGIN_PATH)
+ : getdef_str ("SUPATH",
+ DEFAULT_ROOT_LOGIN_PATH)));
+ if (pw->pw_uid)
+ {
+ xsetenv ("USER", pw->pw_name);
+ xsetenv ("LOGNAME", pw->pw_name);
+ }
+ }
}
#ifdef USE_PAM
#ifdef SYSLOG_FAILURE
log_su (pw, false);
#endif
+ sleep (getdef_num ("FAIL_DELAY", 1));
error (EXIT_FAIL, 0, _("incorrect password"));
}
#ifdef SYSLOG_SUCCESS
projects / thirdparty / util-linux.git / commitdiff
