diff options
Diffstat (limited to 'system_cmds/pwd_mkdb.tproj/pw_scan.c')
| -rw-r--r-- | system_cmds/pwd_mkdb.tproj/pw_scan.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/system_cmds/pwd_mkdb.tproj/pw_scan.c b/system_cmds/pwd_mkdb.tproj/pw_scan.c new file mode 100644 index 0000000..2bd8409 --- /dev/null +++ b/system_cmds/pwd_mkdb.tproj/pw_scan.c @@ -0,0 +1,160 @@ +/* $OpenBSD: passwd.c,v 1.42 2003/06/26 16:34:42 deraadt Exp $ */ + +/* + * Copyright (c) 1987, 1993, 1994, 1995 + * 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. + * 3. 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 const char rcsid[] = "$OpenBSD: passwd.c,v 1.42 2003/06/26 16:34:42 deraadt Exp $"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <sys/wait.h> + +#include <fcntl.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <pwd.h> +#include <err.h> +#include <errno.h> +#include <paths.h> +#include <signal.h> +#include <limits.h> + +#include "util.h" +#include "pw_scan.h" + +int +pw_scan(char *bp, struct passwd *pw, int *flags) +{ + u_long id; + int root; + char *p, *sh, *p2; + + if (flags != (int *)NULL) + *flags = 0; + +#ifdef __APPLE__ + if (bp[0] == '#') { + pw->pw_name = NULL; + return(1); + } +#endif + + if (!(p = strsep(&bp, ":")) || *p == '\0') /* login */ + goto fmt; + pw->pw_name = p; + root = !strcmp(pw->pw_name, "root"); + + if (!(pw->pw_passwd = strsep(&bp, ":"))) /* passwd */ + goto fmt; + + if (!(p = strsep(&bp, ":"))) /* uid */ + goto fmt; + id = strtoul(p, &p2, 10); + if (root && id) { + warnx("root uid should be 0"); + return (0); + } + if (*p2 != '\0') { + warnx("illegal uid field"); + return (0); + } +#ifndef __APPLE__ + /* Apple's UID_MAX is too small (sizeof signed) 3091256 */ + if (id > UID_MAX) { + /* errno is set to ERANGE by strtoul(3) */ + warnx("uid greater than %u", UID_MAX-1); + return (0); + } +#endif + pw->pw_uid = (uid_t)id; + if ((*p == '\0') && (flags != (int *)NULL)) + *flags |= _PASSWORD_NOUID; + + if (!(p = strsep(&bp, ":"))) /* gid */ + goto fmt; + id = strtoul(p, &p2, 10); + if (*p2 != '\0') { + warnx("illegal gid field"); + return (0); + } +#ifndef __APPLE__ + /* Apple's UID_MAX is too small (sizeof signed) 3091256 */ + if (id > UID_MAX) { + /* errno is set to ERANGE by strtoul(3) */ + warnx("gid greater than %u", UID_MAX-1); + return (0); + } +#endif + pw->pw_gid = (gid_t)id; + if ((*p == '\0') && (flags != (int *)NULL)) + *flags |= _PASSWORD_NOGID; + + pw->pw_class = strsep(&bp, ":"); /* class */ + if (!(p = strsep(&bp, ":"))) /* change */ + goto fmt; + pw->pw_change = atol(p); + if ((*p == '\0') && (flags != (int *)NULL)) + *flags |= _PASSWORD_NOCHG; + if (!(p = strsep(&bp, ":"))) /* expire */ + goto fmt; + pw->pw_expire = atol(p); + if ((*p == '\0') && (flags != (int *)NULL)) + *flags |= _PASSWORD_NOEXP; + pw->pw_gecos = strsep(&bp, ":"); /* gecos */ + pw->pw_dir = strsep(&bp, ":"); /* directory */ + if (!(pw->pw_shell = strsep(&bp, ":"))) /* shell */ + goto fmt; + + p = pw->pw_shell; + if (root && *p) { /* empty == /bin/sh */ + for (setusershell();;) { + if (!(sh = getusershell())) { + warnx("warning, unknown root shell"); + break; + } + if (!strcmp(p, sh)) + break; + } + endusershell(); + } + + if ((p = strsep(&bp, ":"))) { /* too many */ +fmt: warnx("corrupted entry"); + return (0); + } + + return (1); +} |