--- /dev/null
+/*
+ * Copyright (c) 1989 - 1994, Julianne Frances Haugh
+ * Copyright (c) 1996 - 1998, Marek Michałkiewicz
+ * Copyright (c) 2003 - 2005, Tomasz Kłoczko
+ * 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. The name of the copyright holders or contributors may not be used to
+ * endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+ * HOLDERS 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.
+ */
+
+#include <config.h>
+
+#ident "$Id$"
+
+#include <sys/types.h>
+#include "prototypes.h"
+#include "defines.h"
+#include <stdio.h>
+#define FIELDS 9
+#define OFIELDS 5
+/*
+ * sgetspent - convert string in shadow file format to (struct spwd *)
+ */
+struct spwd *sgetspent (const char *string)
+{
+ static char spwbuf[1024];
+ static struct spwd spwd;
+ char *fields[FIELDS];
+ char *cp;
+ char *cpp;
+ int i;
+
+ /*
+ * Copy string to local buffer. It has to be tokenized and we
+ * have to do that to our private copy.
+ */
+
+ if (strlen (string) >= sizeof spwbuf) {
+ return 0; /* fail if too long */
+ }
+ strcpy (spwbuf, string);
+
+ cp = strrchr (spwbuf, '\n');
+ if (NULL != cp) {
+ *cp = '\0';
+ }
+
+ /*
+ * Tokenize the string into colon separated fields. Allow up to
+ * FIELDS different fields.
+ */
+
+ for (cp = spwbuf, i = 0; ('\0' != *cp) && (i < FIELDS); i++) {
+ fields[i] = cp;
+ while (('\0' != *cp) && (':' != *cp)) {
+ cp++;
+ }
+
+ if ('\0' != *cp) {
+ *cp = '\0';
+ cp++;
+ }
+ }
+
+ if (i == (FIELDS - 1)) {
+ fields[i++] = cp;
+ }
+
+ if ( ((NULL != cp) && ('\0' != *cp)) ||
+ ((i != FIELDS) && (i != OFIELDS)) ) {
+ return 0;
+ }
+
+ /*
+ * Start populating the structure. The fields are all in
+ * static storage, as is the structure we pass back.
+ */
+
+ spwd.sp_namp = fields[0];
+ spwd.sp_pwdp = fields[1];
+
+ /*
+ * Get the last changed date. For all of the integer fields,
+ * we check for proper format. It is an error to have an
+ * incorrectly formatted number.
+ */
+
+ if (fields[2][0] == '\0') {
+ spwd.sp_lstchg = -1;
+ } else if ( (getlong (fields[2], &spwd.sp_lstchg) == 0)
+ || (spwd.sp_lstchg < 0)) {
+ return 0;
+ }
+
+ /*
+ * Get the minimum period between password changes.
+ */
+
+ if (fields[3][0] == '\0') {
+ spwd.sp_min = -1;
+ } else if ( (getlong (fields[3], &spwd.sp_min) == 0)
+ || (spwd.sp_min < 0)) {
+ return 0;
+ }
+
+ /*
+ * Get the maximum number of days a password is valid.
+ */
+
+ if (fields[4][0] == '\0') {
+ spwd.sp_max = -1;
+ } else if ( (getlong (fields[4], &spwd.sp_max) == 0)
+ || (spwd.sp_max < 0)) {
+ return 0;
+ }
+
+ /*
+ * If there are only OFIELDS fields (this is a SVR3.2 /etc/shadow
+ * formatted file), initialize the other field members to -1.
+ */
+
+ if (i == OFIELDS) {
+ spwd.sp_warn = -1;
+ spwd.sp_inact = -1;
+ spwd.sp_expire = -1;
+ spwd.sp_flag = SHADOW_SP_FLAG_UNSET;
+
+ return &spwd;
+ }
+
+ /*
+ * Get the number of days of password expiry warning.
+ */
+
+ if (fields[5][0] == '\0') {
+ spwd.sp_warn = -1;
+ } else if ( (getlong (fields[5], &spwd.sp_warn) == 0)
+ || (spwd.sp_warn < 0)) {
+ return 0;
+ }
+
+ /*
+ * Get the number of days of inactivity before an account is
+ * disabled.
+ */
+
+ if (fields[6][0] == '\0') {
+ spwd.sp_inact = -1;
+ } else if ( (getlong (fields[6], &spwd.sp_inact) == 0)
+ || (spwd.sp_inact < 0)) {
+ return 0;
+ }
+
+ /*
+ * Get the number of days after the epoch before the account is
+ * set to expire.
+ */
+
+ if (fields[7][0] == '\0') {
+ spwd.sp_expire = -1;
+ } else if ( (getlong (fields[7], &spwd.sp_expire) == 0)
+ || (spwd.sp_expire < 0)) {
+ return 0;
+ }
+
+ /*
+ * This field is reserved for future use. But it isn't supposed
+ * to have anything other than a valid integer in it.
+ */
+
+ if (fields[8][0] == '\0') {
+ spwd.sp_flag = SHADOW_SP_FLAG_UNSET;
+ } else if (getlong (fields[8], &spwd.sp_flag) == 0) {
+ /* FIXME: add a getulong function */
+ return 0;
+ }
+
+ return (&spwd);
+}
+
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