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/* $OpenBSD: table_getpwnam.c,v 1.4 2015/01/20 17:37:54 deraadt Exp $ */ |
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/* |
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* Copyright (c) 2012 Gilles Chehade <gilles@poolp.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/types.h> |
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#include <sys/queue.h> |
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#include <sys/tree.h> |
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#include <sys/socket.h> |
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#include <ctype.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <event.h> |
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#include <fcntl.h> |
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#include <imsg.h> |
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#include <pwd.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <limits.h> |
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#include <string.h> |
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#include "smtpd.h" |
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#include "log.h" |
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/* getpwnam(3) backend */ |
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static int table_getpwnam_config(struct table *); |
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static int table_getpwnam_update(struct table *); |
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static void *table_getpwnam_open(struct table *); |
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static int table_getpwnam_lookup(void *, struct dict *, const char *, enum table_service, |
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union lookup *); |
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static void table_getpwnam_close(void *); |
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struct table_backend table_backend_getpwnam = { |
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K_USERINFO, |
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table_getpwnam_config, |
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table_getpwnam_open, |
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table_getpwnam_update, |
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table_getpwnam_close, |
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table_getpwnam_lookup, |
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}; |
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static int |
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table_getpwnam_config(struct table *table) |
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{ |
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if (table->t_config[0]) |
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return 0; |
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return 1; |
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} |
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static int |
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table_getpwnam_update(struct table *table) |
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{ |
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return 1; |
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} |
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static void * |
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table_getpwnam_open(struct table *table) |
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{ |
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return table; |
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} |
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static void |
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table_getpwnam_close(void *hdl) |
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{ |
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return; |
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} |
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static int |
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table_getpwnam_lookup(void *hdl, struct dict *params, const char *key, enum table_service kind, |
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union lookup *lk) |
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{ |
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struct passwd *pw; |
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size_t s; |
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if (kind != K_USERINFO) |
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return -1; |
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errno = 0; |
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do { |
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pw = getpwnam(key); |
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} while (pw == NULL && errno == EINTR); |
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if (pw == NULL) { |
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if (errno) |
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return -1; |
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return 0; |
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} |
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if (lk == NULL) |
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return 1; |
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lk->userinfo.uid = pw->pw_uid; |
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lk->userinfo.gid = pw->pw_gid; |
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s = strlcpy(lk->userinfo.username, pw->pw_name, |
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sizeof(lk->userinfo.username)); |
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if (s >= sizeof(lk->userinfo.username)) |
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return (-1); |
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s = strlcpy(lk->userinfo.directory, pw->pw_dir, |
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sizeof(lk->userinfo.directory)); |
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if (s >= sizeof(lk->userinfo.directory)) |
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return (-1); |
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return (1); |
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} |