diff options
Diffstat (limited to 'lib/libc/gen/getusershell.c')
| -rw-r--r-- | lib/libc/gen/getusershell.c | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/lib/libc/gen/getusershell.c b/lib/libc/gen/getusershell.c deleted file mode 100644 index d09b50c..0000000 --- a/lib/libc/gen/getusershell.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * Copyright (c) 1985, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getusershell.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ -/* $NetBSD: getusershell.c,v 1.17 1999/01/25 01:09:34 lukem Exp $ */ -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "namespace.h" -#include <sys/param.h> -#include <sys/file.h> - -#include <ctype.h> -#include <errno.h> -#include <nsswitch.h> -#include <paths.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stringlist.h> -#include <unistd.h> - -#ifdef HESIOD -#include <hesiod.h> -#endif -#ifdef YP -#include <rpc/rpc.h> -#include <rpcsvc/ypclnt.h> -#include <rpcsvc/yp_prot.h> -#endif -#include "un-namespace.h" - -/* - * Local shells should NOT be added here. They should be added in - * /etc/shells. - */ - -static const char *const okshells[] = { _PATH_BSHELL, _PATH_CSHELL, NULL }; -static const char *const *curshell; -static StringList *sl; - -static const char *const *initshells(void); - -/* - * Get a list of shells from "shells" nsswitch database - */ -char * -getusershell(void) -{ - char *ret; - - if (curshell == NULL) - curshell = initshells(); - /*LINTED*/ - ret = (char *)*curshell; - if (ret != NULL) - curshell++; - return (ret); -} - -void -endusershell(void) -{ - if (sl) { - sl_free(sl, 1); - sl = NULL; - } - curshell = NULL; -} - -void -setusershell(void) -{ - - curshell = initshells(); -} - - -static int _local_initshells(void *, void *, va_list); - -/*ARGSUSED*/ -static int -_local_initshells(rv, cb_data, ap) - void *rv; - void *cb_data; - va_list ap; -{ - char *sp, *cp; - FILE *fp; - char line[MAXPATHLEN + 2]; - - if (sl) - sl_free(sl, 1); - sl = sl_init(); - - if ((fp = fopen(_PATH_SHELLS, "r")) == NULL) - return NS_UNAVAIL; - - cp = line; - while (fgets(cp, MAXPATHLEN + 1, fp) != NULL) { - while (*cp != '#' && *cp != '/' && *cp != '\0') - cp++; - if (*cp == '#' || *cp == '\0') - continue; - sp = cp; - while (!isspace(*cp) && *cp != '#' && *cp != '\0') - cp++; - *cp++ = '\0'; - sl_add(sl, strdup(sp)); - } - (void)fclose(fp); - return NS_SUCCESS; -} - -#ifdef HESIOD -static int _dns_initshells(void *, void *, va_list); - -/*ARGSUSED*/ -static int -_dns_initshells(rv, cb_data, ap) - void *rv; - void *cb_data; - va_list ap; -{ - char shellname[] = "shells-XXXXX"; - int hsindex, hpi, r; - char **hp; - void *context; - - if (sl) - sl_free(sl, 1); - sl = sl_init(); - r = NS_UNAVAIL; - if (hesiod_init(&context) == -1) - return (r); - - for (hsindex = 0; ; hsindex++) { - snprintf(shellname, sizeof(shellname)-1, "shells-%d", hsindex); - hp = hesiod_resolve(context, shellname, "shells"); - if (hp == NULL) { - if (errno == ENOENT) { - if (hsindex == 0) - r = NS_NOTFOUND; - else - r = NS_SUCCESS; - } - break; - } else { - for (hpi = 0; hp[hpi]; hpi++) - sl_add(sl, hp[hpi]); - free(hp); - } - } - hesiod_end(context); - return (r); -} -#endif /* HESIOD */ - -#ifdef YP -static int _nis_initshells(void *, void *, va_list); - -/*ARGSUSED*/ -static int -_nis_initshells(rv, cb_data, ap) - void *rv; - void *cb_data; - va_list ap; -{ - static char *ypdomain; - char *key, *data; - char *lastkey; - int keylen, datalen; - int r; - - if (sl) - sl_free(sl, 1); - sl = sl_init(); - - if (ypdomain == NULL) { - switch (yp_get_default_domain(&ypdomain)) { - case 0: - break; - case YPERR_RESRC: - return NS_TRYAGAIN; - default: - return NS_UNAVAIL; - } - } - - /* - * `key' and `data' point to strings dynamically allocated by - * the yp_... functions. - * `data' is directly put into the stringlist of shells. - */ - key = data = NULL; - if (yp_first(ypdomain, "shells", &key, &keylen, &data, &datalen)) - return NS_UNAVAIL; - do { - data[datalen] = '\0'; /* clear trailing \n */ - sl_add(sl, data); - - lastkey = key; - r = yp_next(ypdomain, "shells", lastkey, keylen, - &key, &keylen, &data, &datalen); - free(lastkey); - } while (r == 0); - - if (r == YPERR_NOMORE) { - /* - * `data' and `key' ought to be NULL - do not try to free them. - */ - return NS_SUCCESS; - } - - return NS_UNAVAIL; -} -#endif /* YP */ - -static const char *const * -initshells() -{ - static const ns_dtab dtab[] = { - NS_FILES_CB(_local_initshells, NULL) - NS_DNS_CB(_dns_initshells, NULL) - NS_NIS_CB(_nis_initshells, NULL) - { 0 } - }; - if (sl) - sl_free(sl, 1); - sl = sl_init(); - - if (_nsdispatch(NULL, dtab, NSDB_SHELLS, "initshells", __nsdefaultsrc) - != NS_SUCCESS) { - if (sl) - sl_free(sl, 1); - sl = NULL; - return (okshells); - } - sl_add(sl, NULL); - - return (const char *const *)(sl->sl_str); -} |
