/*
* Copyright (c) 1999-2005, 2007-2014
* Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#include <config.h>
#include <sys/types.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif /* HAVE_STRINGS_H */
# ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <pwd.h>
#include <ctype.h>
#include "sudoers.h"
#include "parse.h"
#include <gram.h>
/*
* For converting between syslog numbers and strings.
*/
struct strmap {
char *name;
int num;
};
#ifdef LOG_NFACILITIES
static struct strmap facilities[] = {
#ifdef LOG_AUTHPRIV
{ "authpriv", LOG_AUTHPRIV },
#endif
{ "auth", LOG_AUTH },
{ "daemon", LOG_DAEMON },
{ "user", LOG_USER },
{ "local0", LOG_LOCAL0 },
{ "local1", LOG_LOCAL1 },
{ "local2", LOG_LOCAL2 },
{ "local3", LOG_LOCAL3 },
{ "local4", LOG_LOCAL4 },
{ "local5", LOG_LOCAL5 },
{ "local6", LOG_LOCAL6 },
{ "local7", LOG_LOCAL7 },
{ NULL, -1 }
};
#endif /* LOG_NFACILITIES */
static struct strmap priorities[] = {
{ "alert", LOG_ALERT },
{ "crit", LOG_CRIT },
{ "debug", LOG_DEBUG },
{ "emerg", LOG_EMERG },
{ "err", LOG_ERR },
{ "info", LOG_INFO },
{ "notice", LOG_NOTICE },
{ "warning", LOG_WARNING },
{ NULL, -1 }
};
/*
* Local prototypes.
*/
static bool store_int(char *, struct sudo_defs_types *, int);
static bool store_list(char *, struct sudo_defs_types *, int);
static bool store_mode(char *, struct sudo_defs_types *, int);
static bool store_str(char *, struct sudo_defs_types *, int);
static bool store_syslogfac(char *, struct sudo_defs_types *, int);
static bool store_syslogpri(char *, struct sudo_defs_types *, int);
static bool store_tuple(char *, struct sudo_defs_types *, int);
static bool store_uint(char *, struct sudo_defs_types *, int);
static bool store_float(char *, struct sudo_defs_types *, int);
static void list_op(char *, size_t, struct sudo_defs_types *, enum list_ops);
static const char *logfac2str(int);
static const char *logpri2str(int);
/*
* Table describing compile-time and run-time options.
*/
#include <def_data.c>
/*
* Print version and configure info.
*/
void
dump_defaults(void)
{
struct sudo_defs_types *cur;
struct list_member *item;
struct def_values *def;
char *desc;
debug_decl(dump_defaults, SUDO_DEBUG_DEFAULTS)
for (cur = sudo_defs_table; cur->name; cur++) {
if (cur->desc) {
desc = _(cur->desc);
switch (cur->type & T_MASK) {
case T_FLAG:
if (cur->sd_un.flag)
sudo_printf(SUDO_CONV_INFO_MSG, "%s\n", desc);
break;
case T_STR:
if (cur->sd_un.str) {
sudo_printf(SUDO_CONV_INFO_MSG, desc, cur->sd_un.str);
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
}
break;
case T_LOGFAC:
if (cur->sd_un.ival) {
sudo_printf(SUDO_CONV_INFO_MSG, desc,
logfac2str(cur->sd_un.ival));
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
}
break;
case T_LOGPRI:
if (cur->sd_un.ival) {
sudo_printf(SUDO_CONV_INFO_MSG, desc,
logpri2str(cur->sd_un.ival));
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
}
break;
case T_INT:
sudo_printf(SUDO_CONV_INFO_MSG, desc, cur->sd_un.ival);
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
break;
case T_UINT:
sudo_printf(SUDO_CONV_INFO_MSG, desc, cur->sd_un.uival);
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
break;
case T_FLOAT:
sudo_printf(SUDO_CONV_INFO_MSG, desc, cur->sd_un.fval);
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
break;
case T_MODE:
sudo_printf(SUDO_CONV_INFO_MSG, desc, cur->sd_un.mode);
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
break;
case T_LIST:
if (!SLIST_EMPTY(&cur->sd_un.list)) {
sudo_printf(SUDO_CONV_INFO_MSG, "%s\n", desc);
SLIST_FOREACH(item, &cur->sd_un.list, entries) {
sudo_printf(SUDO_CONV_INFO_MSG,
"\t%s\n", item->value);
}
}
break;
case T_TUPLE:
for (def = cur->values; def->sval; def++) {
if (cur->sd_un.tuple == def->nval) {
sudo_printf(SUDO_CONV_INFO_MSG, desc, def->sval);
break;
}
}
sudo_printf(SUDO_CONV_INFO_MSG, "\n");
break;
}
}
}
debug_return;
}
/*
* Sets/clears an entry in the defaults structure
* If a variable that takes a value is used in a boolean
* context with op == 0, disable that variable.
* Eg. you may want to turn off logging to a file for some hosts.
* This is only meaningful for variables that are *optional*.
*/
bool
set_default(char *var, char *val, int op)
{
struct sudo_defs_types *cur;
int num;
debug_decl(set_default, SUDO_DEBUG_DEFAULTS)
for (cur = sudo_defs_table, num = 0; cur->name; cur++, num++) {
if (strcmp(var, cur->name) == 0)
break;
}
if (!cur->name) {
warningx(U_("unknown defaults entry `%s'"), var);
debug_return_bool(false);
}
switch (cur->type & T_MASK) {
case T_LOGFAC:
if (!store_syslogfac(val, cur, op)) {
if (val)
warningx(U_("value `%s' is invalid for option `%s'"),
val, var);
else
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
break;
case T_LOGPRI:
if (!store_syslogpri(val, cur, op)) {
if (val)
warningx(U_("value `%s' is invalid for option `%s'"),
val, var);
else
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
break;
case T_STR:
if (!val) {
/* Check for bogus boolean usage or lack of a value. */
if (!ISSET(cur->type, T_BOOL) || op != false) {
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
}
if (ISSET(cur->type, T_PATH) && val && *val != '/') {
warningx(U_("values for `%s' must start with a '/'"), var);
debug_return_bool(false);
}
if (!store_str(val, cur, op)) {
warningx(U_("value `%s' is invalid for option `%s'"), val, var);
debug_return_bool(false);
}
break;
case T_INT:
if (!val) {
/* Check for bogus boolean usage or lack of a value. */
if (!ISSET(cur->type, T_BOOL) || op != false) {
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
}
if (!store_int(val, cur, op)) {
warningx(U_("value `%s' is invalid for option `%s'"), val, var);
debug_return_bool(false);
}
break;
case T_UINT:
if (!val) {
/* Check for bogus boolean usage or lack of a value. */
if (!ISSET(cur->type, T_BOOL) || op != false) {
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
}
if (!store_uint(val, cur, op)) {
warningx(U_("value `%s' is invalid for option `%s'"), val, var);
debug_return_bool(false);
}
break;
case T_FLOAT:
if (!val) {
/* Check for bogus boolean usage or lack of a value. */
if (!ISSET(cur->type, T_BOOL) || op != false) {
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
}
if (!store_float(val, cur, op)) {
warningx(U_("value `%s' is invalid for option `%s'"), val, var);
debug_return_bool(false);
}
break;
case T_MODE:
if (!val) {
/* Check for bogus boolean usage or lack of a value. */
if (!ISSET(cur->type, T_BOOL) || op != false) {
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
}
if (!store_mode(val, cur, op)) {
warningx(U_("value `%s' is invalid for option `%s'"), val, var);
debug_return_bool(false);
}
break;
case T_FLAG:
if (val) {
warningx(U_("option `%s' does not take a value"), var);
debug_return_bool(false);
}
cur->sd_un.flag = op;
break;
case T_LIST:
if (!val) {
/* Check for bogus boolean usage or lack of a value. */
if (!ISSET(cur->type, T_BOOL) || op != false) {
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
}
if (!store_list(val, cur, op)) {
warningx(U_("value `%s' is invalid for option `%s'"), val, var);
debug_return_bool(false);
}
break;
case T_TUPLE:
if (!val && !ISSET(cur->type, T_BOOL)) {
warningx(U_("no value specified for `%s'"), var);
debug_return_bool(false);
}
if (!store_tuple(val, cur, op)) {
warningx(U_("value `%s' is invalid for option `%s'"), val, var);
debug_return_bool(false);
}
break;
}
debug_return_bool(true);
}
/*
* Set default options to compiled-in values.
* Any of these may be overridden at runtime by a "Defaults" file.
*/
void
init_defaults(void)
{
static int firsttime = 1;
struct sudo_defs_types *def;
debug_decl(init_defaults, SUDO_DEBUG_DEFAULTS)
/* Clear any old settings. */
if (!firsttime) {
for (def = sudo_defs_table; def->name; def++) {
switch (def->type & T_MASK) {
case T_STR:
efree(def->sd_un.str);
def->sd_un.str = NULL;
break;
case T_LIST:
list_op(NULL, 0, def, freeall);
break;
}
memset(&def->sd_un, 0, sizeof(def->sd_un));
}
}
/* First initialize the flags. */
#ifdef LONG_OTP_PROMPT
def_long_otp_prompt = true;
#endif
#ifdef IGNORE_DOT_PATH
def_ignore_dot = true;
#endif
#ifdef ALWAYS_SEND_MAIL
def_mail_always = true;
#endif
#ifdef SEND_MAIL_WHEN_NO_USER
def_mail_no_user = true;
#endif
#ifdef SEND_MAIL_WHEN_NO_HOST
def_mail_no_host = true;
#endif
#ifdef SEND_MAIL_WHEN_NOT_OK
def_mail_no_perms = true;
#endif
#ifndef NO_TTY_TICKETS
def_tty_tickets = true;
#endif
#ifndef NO_LECTURE
def_lecture = once;
#endif
#ifndef NO_AUTHENTICATION
def_authenticate = true;
#endif
#ifndef NO_ROOT_SUDO
def_root_sudo = true;
#endif
#ifdef HOST_IN_LOG
def_log_host = true;
#endif
#ifdef SHELL_IF_NO_ARGS
def_shell_noargs = true;
#endif
#ifdef SHELL_SETS_HOME
def_set_home = true;
#endif
#ifndef DONT_LEAK_PATH_INFO
def_path_info = true;
#endif
#ifdef FQDN
def_fqdn = true;
#endif
#ifdef USE_INSULTS
def_insults = true;
#endif
#ifdef ENV_EDITOR
def_env_editor = true;
#endif
#ifdef UMASK_OVERRIDE
def_umask_override = true;
#endif
def_iolog_file = estrdup("%{seq}");
def_iolog_dir = estrdup(_PATH_SUDO_IO_LOGDIR);
def_sudoers_locale = estrdup("C");
def_env_reset = ENV_RESET;
def_set_logname = true;
def_closefrom = STDERR_FILENO + 1;
def_pam_service = estrdup("sudo");
#ifdef HAVE_PAM_LOGIN
def_pam_login_service = estrdup("sudo-i");
#else
def_pam_login_service = estrdup("sudo");
#endif
#ifdef NO_PAM_SESSION
def_pam_session = false;
#else
def_pam_session = true;
#endif
#ifdef HAVE_INNETGR
def_use_netgroups = true;
#endif
/* Syslog options need special care since they both strings and ints */
#if (LOGGING & SLOG_SYSLOG)
(void) store_syslogfac(LOGFAC, &sudo_defs_table[I_SYSLOG], true);
(void) store_syslogpri(PRI_SUCCESS, &sudo_defs_table[I_SYSLOG_GOODPRI],
true);
(void) store_syslogpri(PRI_FAILURE, &sudo_defs_table[I_SYSLOG_BADPRI],
true);
#endif
/* Password flags also have a string and integer component. */
(void) store_tuple("any", &sudo_defs_table[I_LISTPW], true);
(void) store_tuple("all", &sudo_defs_table[I_VERIFYPW], true);
/* Then initialize the int-like things. */
#ifdef SUDO_UMASK
def_umask = SUDO_UMASK;
#else
def_umask = 0777;
#endif
def_loglinelen = MAXLOGFILELEN;
def_timestamp_timeout = TIMEOUT;
def_passwd_timeout = PASSWORD_TIMEOUT;
def_passwd_tries = TRIES_FOR_PASSWORD;
#ifdef HAVE_ZLIB_H
def_compress_io = true;
#endif
/* Now do the strings */
def_mailto = estrdup(MAILTO);
def_mailsub = estrdup(N_(MAILSUBJECT));
def_badpass_message = estrdup(_(INCORRECT_PASSWORD));
def_lecture_status_dir = estrdup(_PATH_SUDO_LECTURE_DIR);
def_timestampdir = estrdup(_PATH_SUDO_TIMEDIR);
def_passprompt = estrdup(_(PASSPROMPT));
def_runas_default = estrdup(RUNAS_DEFAULT);
#ifdef _PATH_SUDO_SENDMAIL
def_mailerpath = estrdup(_PATH_SUDO_SENDMAIL);
def_mailerflags = estrdup("-t");
#endif
#if (LOGGING & SLOG_FILE)
def_logfile = estrdup(_PATH_SUDO_LOGFILE);
#endif
#ifdef EXEMPTGROUP
def_exempt_group = estrdup(EXEMPTGROUP);
#endif
#ifdef SECURE_PATH
def_secure_path = estrdup(SECURE_PATH);
#endif
def_editor = estrdup(EDITOR);
def_set_utmp = true;
def_pam_setcred = true;
/* Finally do the lists (currently just environment tables). */
init_envtables();
firsttime = 0;
debug_return;
}
/*
* Update the defaults based on what was set by sudoers.
* Pass in an OR'd list of which default types to update.
*/
bool
update_defaults(int what)
{
struct defaults *def;
bool rc = true;
debug_decl(update_defaults, SUDO_DEBUG_DEFAULTS)
TAILQ_FOREACH(def, &defaults, entries) {
switch (def->type) {
case DEFAULTS:
if (ISSET(what, SETDEF_GENERIC) &&
!set_default(def->var, def->val, def->op))
rc = false;
break;
case DEFAULTS_USER:
#if 1
if (ISSET(what, SETDEF_USER)) {
int m;
m = userlist_matches(sudo_user.pw, def->binding);
if (m == ALLOW) {
if (!set_default(def->var, def->val, def->op))
rc = false;
}
}
#else
if (ISSET(what, SETDEF_USER) &&
userlist_matches(sudo_user.pw, def->binding) == ALLOW &&
!set_default(def->var, def->val, def->op))
rc = false;
#endif
break;
case DEFAULTS_RUNAS:
if (ISSET(what, SETDEF_RUNAS) &&
runaslist_matches(def->binding, NULL, NULL, NULL) == ALLOW &&
!set_default(def->var, def->val, def->op))
rc = false;
break;
case DEFAULTS_HOST:
if (ISSET(what, SETDEF_HOST) &&
hostlist_matches(def->binding) == ALLOW &&
!set_default(def->var, def->val, def->op))
rc = false;
break;
case DEFAULTS_CMND:
if (ISSET(what, SETDEF_CMND) &&
cmndlist_matches(def->binding) == ALLOW &&
!set_default(def->var, def->val, def->op))
rc = false;
break;
}
}
debug_return_bool(rc);
}
/*
* Check the defaults entries without actually setting them.
* Pass in an OR'd list of which default types to check.
*/
bool
check_defaults(int what, bool quiet)
{
struct sudo_defs_types *cur;
struct defaults *def;
bool rc = true;
debug_decl(check_defaults, SUDO_DEBUG_DEFAULTS)
TAILQ_FOREACH(def, &defaults, entries) {
switch (def->type) {
case DEFAULTS:
if (!ISSET(what, SETDEF_GENERIC))
continue;
break;
case DEFAULTS_USER:
if (!ISSET(what, SETDEF_USER))
continue;
break;
case DEFAULTS_RUNAS:
if (!ISSET(what, SETDEF_RUNAS))
continue;
break;
case DEFAULTS_HOST:
if (!ISSET(what, SETDEF_HOST))
continue;
break;
case DEFAULTS_CMND:
if (!ISSET(what, SETDEF_CMND))
continue;
break;
}
for (cur = sudo_defs_table; cur->name != NULL; cur++) {
if (strcmp(def->var, cur->name) == 0)
break;
}
if (cur->name == NULL) {
if (!quiet)
warningx(U_("unknown defaults entry `%s'"), def->var);
rc = false;
}
}
debug_return_bool(rc);
}
static bool
store_int(char *val, struct sudo_defs_types *def, int op)
{
const char *errstr;
int i;
debug_decl(store_int, SUDO_DEBUG_DEFAULTS)
if (op == false) {
def->sd_un.ival = 0;
} else {
i = strtonum(val, INT_MIN, INT_MAX, &errstr);
if (errstr != NULL) {
sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
"%s: %s", val, errstr);
debug_return_bool(false);
}
def->sd_un.ival = i;
}
if (def->callback)
debug_return_bool(def->callback(val));
debug_return_bool(true);
}
static bool
store_uint(char *val, struct sudo_defs_types *def, int op)
{
const char *errstr;
unsigned int u;
debug_decl(store_uint, SUDO_DEBUG_DEFAULTS)
if (op == false) {
def->sd_un.uival = 0;
} else {
u = strtonum(val, 0, UINT_MAX, &errstr);
if (errstr != NULL) {
sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
"%s: %s", val, errstr);
debug_return_bool(false);
}
def->sd_un.uival = u;
}
if (def->callback)
debug_return_bool(def->callback(val));
debug_return_bool(true);
}
static bool
store_float(char *val, struct sudo_defs_types *def, int op)
{
char *endp;
double d;
debug_decl(store_float, SUDO_DEBUG_DEFAULTS)
if (op == false) {
def->sd_un.fval = 0.0;
} else {
d = strtod(val, &endp);
if (*endp != '\0')
debug_return_bool(false);
/* XXX - should check against HUGE_VAL */
def->sd_un.fval = d;
}
if (def->callback)
debug_return_bool(def->callback(val));
debug_return_bool(true);
}
static bool
store_tuple(char *val, struct sudo_defs_types *def, int op)
{
struct def_values *v;
debug_decl(store_tuple, SUDO_DEBUG_DEFAULTS)
/*
* Look up tuple value by name to find enum def_tuple value.
* For negation to work the first element of enum def_tuple
* must be equivalent to boolean false.
*/
if (!val) {
def->sd_un.ival = (op == false) ? 0 : 1;
} else {
for (v = def->values; v->sval != NULL; v++) {
if (strcmp(v->sval, val) == 0) {
def->sd_un.tuple = v->nval;
break;
}
}
if (v->sval == NULL)
debug_return_bool(false);
}
if (def->callback)
debug_return_bool(def->callback(val));
debug_return_bool(true);
}
static bool
store_str(char *val, struct sudo_defs_types *def, int op)
{
debug_decl(store_str, SUDO_DEBUG_DEFAULTS)
efree(def->sd_un.str);
if (op == false)
def->sd_un.str = NULL;
else
def->sd_un.str = estrdup(val);
if (def->callback)
debug_return_bool(def->callback(val));
debug_return_bool(true);
}
static bool
store_list(char *str, struct sudo_defs_types *def, int op)
{
char *start, *end;
debug_decl(store_list, SUDO_DEBUG_DEFAULTS)
/* Remove all old members. */
if (op == false || op == true)
list_op(NULL, 0, def, freeall);
/* Split str into multiple space-separated words and act on each one. */
if (op != false) {
end = str;
do {
/* Remove leading blanks, if nothing but blanks we are done. */
for (start = end; isblank((unsigned char)*start); start++)
;
if (*start == '\0')
break;
/* Find end position and perform operation. */
for (end = start; *end && !isblank((unsigned char)*end); end++)
;
list_op(start, end - start, def, op == '-' ? delete : add);
} while (*end++ != '\0');
}
debug_return_bool(true);
}
static bool
store_syslogfac(char *val, struct sudo_defs_types *def, int op)
{
struct strmap *fac;
debug_decl(store_syslogfac, SUDO_DEBUG_DEFAULTS)
if (op == false) {
def->sd_un.ival = false;
debug_return_bool(true);
}
#ifdef LOG_NFACILITIES
if (!val)
debug_return_bool(false);
for (fac = facilities; fac->name && strcmp(val, fac->name); fac++)
;
if (fac->name == NULL)
debug_return_bool(false); /* not found */
def->sd_un.ival = fac->num;
#else
def->sd_un.ival = -1;
#endif /* LOG_NFACILITIES */
debug_return_bool(true);
}
static const char *
logfac2str(int n)
{
#ifdef LOG_NFACILITIES
struct strmap *fac;
debug_decl(logfac2str, SUDO_DEBUG_DEFAULTS)
for (fac = facilities; fac->name && fac->num != n; fac++)
;
debug_return_const_str(fac->name);
#else
return "default";
#endif /* LOG_NFACILITIES */
}
static bool
store_syslogpri(char *val, struct sudo_defs_types *def, int op)
{
struct strmap *pri;
debug_decl(store_syslogpri, SUDO_DEBUG_DEFAULTS)
if (op == false || !val)
debug_return_bool(false);
for (pri = priorities; pri->name && strcmp(val, pri->name); pri++)
;
if (pri->name == NULL)
debug_return_bool(false); /* not found */
def->sd_un.ival = pri->num;
debug_return_bool(true);
}
static const char *
logpri2str(int n)
{
struct strmap *pri;
debug_decl(logpri2str, SUDO_DEBUG_DEFAULTS)
for (pri = priorities; pri->name && pri->num != n; pri++)
;
debug_return_const_str(pri->name);
}
static bool
store_mode(char *val, struct sudo_defs_types *def, int op)
{
mode_t mode;
const char *errstr;
debug_decl(store_mode, SUDO_DEBUG_DEFAULTS)
if (op == false) {
def->sd_un.mode = 0777;
} else {
mode = atomode(val, &errstr);
if (errstr != NULL) {
sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
"%s is %s", val, errstr);
debug_return_bool(false);
}
def->sd_un.mode = mode;
}
if (def->callback)
debug_return_bool(def->callback(val));
debug_return_bool(true);
}
static void
list_op(char *val, size_t len, struct sudo_defs_types *def, enum list_ops op)
{
struct list_member *cur, *prev = NULL;
debug_decl(list_op, SUDO_DEBUG_DEFAULTS)
if (op == freeall) {
while ((cur = SLIST_FIRST(&def->sd_un.list)) != NULL) {
SLIST_REMOVE_HEAD(&def->sd_un.list, entries);
efree(cur->value);
efree(cur);
}
debug_return;
}
SLIST_FOREACH(cur, &def->sd_un.list, entries) {
if ((strncmp(cur->value, val, len) == 0 && cur->value[len] == '\0')) {
if (op == add)
debug_return; /* already exists */
/* Delete node */
if (prev == NULL)
SLIST_REMOVE_HEAD(&def->sd_un.list, entries);
else
SLIST_REMOVE_AFTER(prev, entries);
efree(cur->value);
efree(cur);
break;
}
prev = cur;
}
/* Add new node to the head of the list. */
if (op == add) {
cur = ecalloc(1, sizeof(struct list_member));
cur->value = estrndup(val, len);
SLIST_INSERT_HEAD(&def->sd_un.list, cur, entries);
}
debug_return;
}
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