Imported Upstream version 1.8.1p2

[debian/sudo] / plugins / sudoers / getspwuid.c

diff --git a/plugins/sudoers/getspwuid.c b/plugins/sudoers/getspwuid.c
new file mode 100644 (file)
index 0000000..01f4885
--- /dev/null
+++ b/plugins/sudoers/getspwuid.c
@@ -0,0 +1,186 @@
+/*
+ * Copyright (c) 1996, 1998-2005, 2010
+ *     Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif /* STDC_HEADERS */
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#include <pwd.h>
+#include <grp.h>
+#ifdef HAVE_GETSPNAM
+# include <shadow.h>
+#endif /* HAVE_GETSPNAM */
+#ifdef HAVE_GETPRPWNAM
+# ifdef __hpux
+#  undef MAXINT
+#  include <hpsecurity.h>
+# else
+#  include <sys/security.h>
+# endif /* __hpux */
+# include <prot.h>
+#endif /* HAVE_GETPRPWNAM */
+#ifdef HAVE_GETPWANAM
+# include <sys/label.h>
+# include <sys/audit.h>
+# include <pwdadj.h>
+#endif /* HAVE_GETPWANAM */
+#ifdef HAVE_GETAUTHUID
+# include <auth.h>
+#endif /* HAVE_GETAUTHUID */
+
+#include "sudoers.h"
+
+/*
+ * Exported for auth/secureware.c
+ */
+#if defined(HAVE_GETPRPWNAM) && defined(__alpha)
+int crypt_type = INT_MAX;
+#endif /* HAVE_GETPRPWNAM && __alpha */
+
+/*
+ * Return a copy of the encrypted password for the user described by pw.
+ * If shadow passwords are in use, look in the shadow file.
+ */
+char *
+sudo_getepw(const struct passwd *pw)
+{
+    char *epw = NULL;
+
+    /* If there is a function to check for shadow enabled, use it... */
+#ifdef HAVE_ISCOMSEC
+    if (!iscomsec())
+       goto done;
+#endif /* HAVE_ISCOMSEC */
+#ifdef HAVE_ISSECURE
+    if (!issecure())
+       goto done;
+#endif /* HAVE_ISSECURE */
+
+#ifdef HAVE_GETPRPWNAM
+    {
+       struct pr_passwd *spw;
+
+       if ((spw = getprpwnam(pw->pw_name)) && spw->ufld.fd_encrypt) {
+# ifdef __alpha
+           crypt_type = spw->ufld.fd_oldcrypt;
+# endif /* __alpha */
+           epw = spw->ufld.fd_encrypt;
+       }
+    }
+#endif /* HAVE_GETPRPWNAM */
+#ifdef HAVE_GETSPNAM
+    {
+       struct spwd *spw;
+
+       if ((spw = getspnam(pw->pw_name)) && spw->sp_pwdp)
+           epw = spw->sp_pwdp;
+    }
+#endif /* HAVE_GETSPNAM */
+#ifdef HAVE_GETSPWUID
+    {
+       struct s_passwd *spw;
+
+       if ((spw = getspwuid(pw->pw_uid)) && spw->pw_passwd)
+           epw = spw->pw_passwd;
+    }
+#endif /* HAVE_GETSPWUID */
+#ifdef HAVE_GETPWANAM
+    {
+       struct passwd_adjunct *spw;
+
+       if ((spw = getpwanam(pw->pw_name)) && spw->pwa_passwd)
+           epw = spw->pwa_passwd;
+    }
+#endif /* HAVE_GETPWANAM */
+#ifdef HAVE_GETAUTHUID
+    {
+       AUTHORIZATION *spw;
+
+       if ((spw = getauthuid(pw->pw_uid)) && spw->a_password)
+           epw = spw->a_password;
+    }
+#endif /* HAVE_GETAUTHUID */
+
+#if defined(HAVE_ISCOMSEC) || defined(HAVE_ISSECURE)
+done:
+#endif
+    /* If no shadow password, fall back on regular password. */
+    return estrdup(epw ? epw : pw->pw_passwd);
+}
+
+void
+sudo_setspent(void)
+{
+#ifdef HAVE_GETPRPWNAM
+    setprpwent();
+#endif
+#ifdef HAVE_GETSPNAM
+    setspent();
+#endif
+#ifdef HAVE_GETSPWUID
+    setspwent();
+#endif
+#ifdef HAVE_GETPWANAM
+    setpwaent();
+#endif
+#ifdef HAVE_GETAUTHUID
+    setauthent();
+#endif
+}
+
+void
+sudo_endspent(void)
+{
+#ifdef HAVE_GETPRPWNAM
+    endprpwent();
+#endif
+#ifdef HAVE_GETSPNAM
+    endspent();
+#endif
+#ifdef HAVE_GETSPWUID
+    endspwent();
+#endif
+#ifdef HAVE_GETPWANAM
+    endpwaent();
+#endif
+#ifdef HAVE_GETAUTHUID
+    endauthent();
+#endif
+}