51e5926049
searchgroup and searchowner. Significantly simplified. (__nis_default_owner): Remove duplication. Do not locally copy the string before duplicating it. (__nis_default_group): Likewise. * nis/nis_lookup.c (nis_lookup): After calling nis_free_directory, we must clear the variable before calling __nisfind_server. * nis/nis_lookup.c (nis_lookup): Always free memory allocated with nis_getnames. [Coverity CID 223] * locale/programs/locfile.c (locfile_read): Use alloca instead of xmalloc to allocate local repertoire name. [Coverity CID 222] * iconv/iconv_charmap.c (use_to_charmap): No need to dynamically allocate memory for the input to add_bytes. [Coverity CID 221] was allocated here. [Coverity CID 219, 220]
456 lines
9.6 KiB
C
456 lines
9.6 KiB
C
/* Copyright (c) 1997, 1998, 2004, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <rpc/rpc.h>
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#include <rpcsvc/nis.h>
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#define DEFAULT_TTL 43200
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/*
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** Some functions for parsing the -D param and NIS_DEFAULTS Environ
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*/
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static nis_name
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searchXYX (char *str, const char *what)
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{
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assert (strlen (what) == 6);
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assert (strncmp (str, what, 6) == 0);
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str += 6; /* Points to the begin of the parameters. */
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int i = 0;
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while (str[i] != '\0' && str[i] != ':')
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++i;
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if (i == 0) /* only "<WHAT>=" ? */
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return strdup ("");
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return strndup (str, i);
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}
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static nis_name
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searchgroup (char *str)
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{
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return searchXYX (str, "group=");
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}
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static nis_name
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searchowner (char *str)
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{
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return searchXYX (str, "owner=");
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}
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static uint32_t
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searchttl (char *str)
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{
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char buf[strlen (str) + 1];
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char *cptr, *dptr;
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uint32_t time;
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int i;
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dptr = strstr (str, "ttl=");
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if (dptr == NULL) /* should (could) not happen */
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return DEFAULT_TTL;;
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dptr += 4; /* points to the begin of the new ttl */
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i = 0;
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while (dptr[i] != '\0' && dptr[i] != ':')
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i++;
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if (i == 0) /* only "ttl=" ? */
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return DEFAULT_TTL;
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strncpy (buf, dptr, i);
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buf[i] = '\0';
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time = 0;
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dptr = buf;
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cptr = strchr (dptr, 'd');
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if (cptr != NULL)
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{
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*cptr = '\0';
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cptr++;
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time += atoi (dptr) * 60 * 60 * 24;
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dptr = cptr;
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}
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cptr = strchr (dptr, 'h');
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if (cptr != NULL)
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{
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*cptr = '\0';
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cptr++;
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time += atoi (dptr) * 60 * 60;
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dptr = cptr;
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}
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cptr = strchr (dptr, 'm');
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if (cptr != NULL)
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{
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*cptr = '\0';
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cptr++;
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time += atoi (dptr) * 60;
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dptr = cptr;
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}
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cptr = strchr (dptr, 's');
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if (cptr != NULL)
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*cptr = '\0';
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time += atoi (dptr);
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return time;
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}
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static unsigned int
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searchaccess (char *str, unsigned int access)
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{
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char buf[strlen (str) + 1];
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char *cptr;
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unsigned int result = access;
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int i;
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int n, o, g, w;
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cptr = strstr (str, "access=");
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if (cptr == NULL)
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return 0;
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cptr += 7; /* points to the begin of the access string */
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i = 0;
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while (cptr[i] != '\0' && cptr[i] != ':')
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i++;
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if (i == 0) /* only "access=" ? */
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return 0;
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strncpy (buf, cptr, i);
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buf[i] = '\0';
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n = o = g = w = 0;
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cptr = buf;
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if (*cptr == ',') /* Fix for stupid Solaris scripts */
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++cptr;
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while (*cptr != '\0')
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{
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switch (*cptr)
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{
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case 'n':
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n = 1;
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break;
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case 'o':
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o = 1;
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break;
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case 'g':
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g = 1;
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break;
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case 'w':
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w = 1;
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break;
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case 'a':
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o = g = w = 1;
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break;
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case '-':
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cptr++; /* Remove "-" from beginning */
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while (*cptr != '\0' && *cptr != ',')
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{
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switch (*cptr)
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{
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case 'r':
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if (n)
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result = result & ~(NIS_READ_ACC << 24);
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if (o)
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result = result & ~(NIS_READ_ACC << 16);
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if (g)
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result = result & ~(NIS_READ_ACC << 8);
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if (w)
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result = result & ~(NIS_READ_ACC);
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break;
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case 'm':
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if (n)
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result = result & ~(NIS_MODIFY_ACC << 24);
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if (o)
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result = result & ~(NIS_MODIFY_ACC << 16);
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if (g)
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result = result & ~(NIS_MODIFY_ACC << 8);
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if (w)
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result = result & ~(NIS_MODIFY_ACC);
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break;
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case 'c':
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if (n)
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result = result & ~(NIS_CREATE_ACC << 24);
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if (o)
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result = result & ~(NIS_CREATE_ACC << 16);
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if (g)
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result = result & ~(NIS_CREATE_ACC << 8);
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if (w)
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result = result & ~(NIS_CREATE_ACC);
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break;
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case 'd':
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if (n)
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result = result & ~(NIS_DESTROY_ACC << 24);
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if (o)
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result = result & ~(NIS_DESTROY_ACC << 16);
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if (g)
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result = result & ~(NIS_DESTROY_ACC << 8);
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if (w)
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result = result & ~(NIS_DESTROY_ACC);
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break;
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default:
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return (~0U);
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}
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cptr++;
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}
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n = o = g = w = 0;
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break;
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case '+':
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cptr++; /* Remove "+" from beginning */
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while (*cptr != '\0' && *cptr != ',')
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{
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switch (*cptr)
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{
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case 'r':
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if (n)
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result = result | (NIS_READ_ACC << 24);
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if (o)
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result = result | (NIS_READ_ACC << 16);
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if (g)
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result = result | (NIS_READ_ACC << 8);
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if (w)
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result = result | (NIS_READ_ACC);
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break;
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case 'm':
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if (n)
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result = result | (NIS_MODIFY_ACC << 24);
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if (o)
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result = result | (NIS_MODIFY_ACC << 16);
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if (g)
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result = result | (NIS_MODIFY_ACC << 8);
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if (w)
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result = result | (NIS_MODIFY_ACC);
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break;
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case 'c':
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if (n)
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result = result | (NIS_CREATE_ACC << 24);
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if (o)
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result = result | (NIS_CREATE_ACC << 16);
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if (g)
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result = result | (NIS_CREATE_ACC << 8);
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if (w)
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result = result | (NIS_CREATE_ACC);
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break;
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case 'd':
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if (n)
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result = result | (NIS_DESTROY_ACC << 24);
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if (o)
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result = result | (NIS_DESTROY_ACC << 16);
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if (g)
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result = result | (NIS_DESTROY_ACC << 8);
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if (w)
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result = result | (NIS_DESTROY_ACC);
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break;
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default:
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return (~0U);
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}
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cptr++;
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}
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n = o = g = w = 0;
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break;
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case '=':
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cptr++; /* Remove "=" from beginning */
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/* Clear */
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if (n)
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result = result & ~((NIS_READ_ACC + NIS_MODIFY_ACC +
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NIS_CREATE_ACC + NIS_DESTROY_ACC) << 24);
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if (o)
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result = result & ~((NIS_READ_ACC + NIS_MODIFY_ACC +
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NIS_CREATE_ACC + NIS_DESTROY_ACC) << 16);
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if (g)
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result = result & ~((NIS_READ_ACC + NIS_MODIFY_ACC +
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NIS_CREATE_ACC + NIS_DESTROY_ACC) << 8);
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if (w)
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result = result & ~(NIS_READ_ACC + NIS_MODIFY_ACC +
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NIS_CREATE_ACC + NIS_DESTROY_ACC);
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while (*cptr != '\0' && *cptr != ',')
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{
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switch (*cptr)
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{
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case 'r':
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if (n)
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result = result | (NIS_READ_ACC << 24);
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if (o)
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result = result | (NIS_READ_ACC << 16);
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if (g)
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result = result | (NIS_READ_ACC << 8);
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if (w)
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result = result | (NIS_READ_ACC);
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break;
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case 'm':
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if (n)
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result = result | (NIS_MODIFY_ACC << 24);
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if (o)
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result = result | (NIS_MODIFY_ACC << 16);
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if (g)
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result = result | (NIS_MODIFY_ACC << 8);
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if (w)
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result = result | (NIS_MODIFY_ACC);
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break;
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case 'c':
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if (n)
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result = result | (NIS_CREATE_ACC << 24);
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if (o)
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result = result | (NIS_CREATE_ACC << 16);
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if (g)
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result = result | (NIS_CREATE_ACC << 8);
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if (w)
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result = result | (NIS_CREATE_ACC);
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break;
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case 'd':
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if (n)
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result = result | (NIS_DESTROY_ACC << 24);
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if (o)
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result = result | (NIS_DESTROY_ACC << 16);
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if (g)
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result = result | (NIS_DESTROY_ACC << 8);
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if (w)
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result = result | (NIS_DESTROY_ACC);
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break;
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default:
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return result = (~0U);
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}
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cptr++;
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}
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n = o = g = w = 0;
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break;
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default:
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return result = (~0U);
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}
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if (*cptr != '\0')
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cptr++;
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}
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return result;
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}
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nis_name
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__nis_default_owner (char *defaults)
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{
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char *default_owner = NULL;
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char *cptr = defaults;
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if (cptr == NULL)
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cptr = getenv ("NIS_DEFAULTS");
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if (cptr != NULL)
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{
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char *dptr = strstr (cptr, "owner=");
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if (dptr != NULL)
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{
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char *p = searchowner (dptr);
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if (p == NULL)
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return NULL;
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default_owner = strdupa (p);
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free (p);
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}
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}
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return strdup (default_owner ?: nis_local_principal ());
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}
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libnsl_hidden_def (__nis_default_owner)
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nis_name
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__nis_default_group (char *defaults)
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{
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char *default_group = NULL;
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char *cptr = defaults;
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if (cptr == NULL)
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cptr = getenv ("NIS_DEFAULTS");
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if (cptr != NULL)
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{
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char *dptr = strstr (cptr, "group=");
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if (dptr != NULL)
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{
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char *p = searchgroup (dptr);
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if (p == NULL)
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return NULL;
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default_group = strdupa (p);
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free (p);
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}
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}
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return strdup (default_group ?: nis_local_group ());
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}
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libnsl_hidden_def (__nis_default_group)
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uint32_t
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__nis_default_ttl (char *defaults)
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{
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char *cptr, *dptr;
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if (defaults != NULL)
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{
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dptr = strstr (defaults, "ttl=");
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if (dptr != NULL)
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return searchttl (defaults);
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}
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cptr = getenv ("NIS_DEFAULTS");
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if (cptr == NULL)
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return DEFAULT_TTL;
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dptr = strstr (cptr, "ttl=");
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if (dptr == NULL)
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return DEFAULT_TTL;
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return searchttl (cptr);
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}
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/* Default access rights are ----rmcdr---r---, but we could change
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this with the NIS_DEFAULTS variable. */
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unsigned int
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__nis_default_access (char *param, unsigned int defaults)
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{
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unsigned int result;
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char *cptr;
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if (defaults == 0)
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result = 0 | OWNER_DEFAULT | GROUP_DEFAULT | WORLD_DEFAULT;
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else
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result = defaults;
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if (param != NULL && strstr (param, "access=") != NULL)
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result = searchaccess (param, result);
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else
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{
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cptr = getenv ("NIS_DEFAULTS");
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if (cptr != NULL && strstr (cptr, "access=") != NULL)
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result = searchaccess (getenv ("NIS_DEFAULTS"), result);
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}
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return result;
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}
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libnsl_hidden_def (__nis_default_access)
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