diff options
Diffstat (limited to 'nis/nss-nis.c')
| -rw-r--r-- | nis/nss-nis.c | 83 |
1 files changed, 82 insertions, 1 deletions
diff --git a/nis/nss-nis.c b/nis/nss-nis.c index 7f91e64..eef73c4 100644 --- a/nis/nss-nis.c +++ b/nis/nss-nis.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1996, 2001 Free Software Foundation, Inc. +/* Copyright (C) 1996, 2001, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,6 +16,9 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#include <ctype.h> +#include <stdio.h> +#include <stdio_ext.h> #include <rpcsvc/ypclnt.h> #include "nss-nis.h" @@ -45,3 +48,81 @@ const enum nss_status __yperr2nss_tab[] = }; const unsigned int __yperr2nss_count = (sizeof (__yperr2nss_tab) / sizeof (__yperr2nss_tab[0])); + +int _nis_default_nss_flags; + +static const char default_nss[] = "/etc/default/nss"; + +int +_nis_check_default_nss (void) +{ + FILE *fp = fopen (default_nss, "rc"); + int flags = NSS_FLAG_SET; + if (fp != NULL) + { + char *line = NULL; + size_t linelen = 0; + + __fsetlocking (fp, FSETLOCKING_BYCALLER); + + while (!feof_unlocked (fp)) + { + ssize_t n = getline (&line, &linelen, fp); + if (n <= 0) + break; + + /* There currently are only two variables we expect, so + simplify the parsing. Recognize only + + NETID_AUTHORITATIVE = TRUE + SERVICES_AUTHORITATIVE = TRUE + + with arbitrary white spaces. */ + char *cp = line; + while (isspace (*cp)) + ++cp; + + /* Recognize comment lines. */ + if (*cp == '#') + continue; + + static const char netid_authoritative[] = "NETID_AUTHORITATIVE"; + static const char services_authoritative[] + = "SERVICES_AUTHORITATIVE"; + size_t flag_len; + if (strncmp (cp, netid_authoritative, + flag_len = sizeof (netid_authoritative) - 1) != 0 + && strncmp (cp, services_authoritative, + flag_len = sizeof (services_authoritative) - 1) + != 0) + continue; + + cp += flag_len; + while (isspace (*cp)) + ++cp; + if (*cp++ != '=') + continue; + while (isspace (*cp)) + ++cp; + + if (strncmp (cp, "TRUE", 4) != 0) + continue; + cp += 4; + + while (isspace (*cp)) + ++cp; + + if (*cp == '\0') + flags |= flag_len == sizeof (netid_authoritative) - 1 + ? NSS_FLAG_NETID_AUTHORITATIVE + : NSS_FLAG_SERVICES_AUTHORITATIVE; + } + + free (line); + + fclose (fp); + } + + _nis_default_nss_flags = flags; + return flags; +} |