/*
conf.c -- configuration code
Copyright (C) 1998 Robert van der Meulen
- 1998-2001 Ivo Timmermans <itimmermans@bigfoot.com>
- 2000,2001 Guus Sliepen <guus@sliepen.warande.net>
- 2000 Cris van Pelt <tribbel@arise.dhs.org>
+ 1998-2005 Ivo Timmermans
+ 2000-2009 Guus Sliepen <guus@tinc-vpn.org>
+ 2000 Cris van Pelt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id: conf.c,v 1.9.4.50 2001/11/16 22:31:15 zarq Exp $
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#include "config.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <string.h>
-
-#include <xalloc.h>
-#include <utils.h> /* for cp */
-#include <avl_tree.h>
+#include "system.h"
+#include "avl_tree.h"
#include "conf.h"
-
-#include "system.h"
+#include "logger.h"
+#include "netutl.h" /* for str2address */
+#include "utils.h" /* for cp */
+#include "xalloc.h"
avl_tree_t *config_tree;
-int debug_lvl = 0;
-int timeout = 0; /* seconds before timeout */
-char *confbase = NULL; /* directory in which all config files are */
-char *netname = NULL; /* name of the vpn network */
-
-/* Will be set if HUP signal is received. It will be processed when it is safe. */
-int sighup = 0;
-
-int config_compare(config_t *a, config_t *b)
-{
- int result;
-
- result = strcmp(a->variable, b->variable);
-
- if(result)
- return result;
-
- result = a->line - b->line;
-
- if(result)
- return result;
- else
- return strcmp(a->file, b->file);
+int pinginterval = 0; /* seconds between pings */
+int pingtimeout = 0; /* seconds to wait for response */
+char *confbase = NULL; /* directory in which all config files are */
+char *netname = NULL; /* name of the vpn network */
+
+static int config_compare(const config_t *a, const config_t *b) {
+ int result;
+
+ result = strcasecmp(a->variable, b->variable);
+
+ if(result)
+ return result;
+
+ result = a->line - b->line;
+
+ if(result)
+ return result;
+ else
+ return strcmp(a->file, b->file);
}
-void init_configuration(avl_tree_t **config_tree)
-{
-cp
- *config_tree = avl_alloc_tree((avl_compare_t)config_compare, (avl_action_t)free_config);
-cp
+void init_configuration(avl_tree_t ** config_tree) {
+ *config_tree = avl_alloc_tree((avl_compare_t) config_compare, (avl_action_t) free_config);
}
-void exit_configuration(avl_tree_t **config_tree)
-{
-cp
- avl_delete_tree(*config_tree);
- *config_tree = NULL;
-cp
+void exit_configuration(avl_tree_t ** config_tree) {
+ avl_delete_tree(*config_tree);
+ *config_tree = NULL;
}
-config_t *new_config(void)
-{
- config_t *cfg;
-cp
- cfg = (config_t *)xmalloc_and_zero(sizeof(*cfg));
-
- return cfg;
+config_t *new_config(void) {
+ return xmalloc_and_zero(sizeof(config_t));
}
-void free_config(config_t *cfg)
-{
-cp
- if(cfg->variable)
- free(cfg->variable);
- if(cfg->value)
- free(cfg->value);
- if(cfg->file)
- free(cfg->file);
- free(cfg);
-cp
+void free_config(config_t *cfg) {
+ if(cfg->variable)
+ free(cfg->variable);
+
+ if(cfg->value)
+ free(cfg->value);
+
+ if(cfg->file)
+ free(cfg->file);
+
+ free(cfg);
}
-void config_add(avl_tree_t *config_tree, config_t *cfg)
-{
-cp
- avl_insert(config_tree, cfg);
-cp
+void config_add(avl_tree_t *config_tree, config_t *cfg) {
+ avl_insert(config_tree, cfg);
}
-config_t *lookup_config(avl_tree_t *config_tree, char *variable)
-{
- config_t cfg, *found;
-cp
- cfg.variable = variable;
- cfg.file = "";
- cfg.line = 0;
+config_t *lookup_config(avl_tree_t *config_tree, char *variable) {
+ config_t cfg, *found;
- found = avl_search_closest_greater(config_tree, &cfg);
+ cfg.variable = variable;
+ cfg.file = "";
+ cfg.line = 0;
- if(!found)
- return NULL;
-
- if(strcmp(found->variable, variable))
- return NULL;
+ found = avl_search_closest_greater(config_tree, &cfg);
- return found;
+ if(!found)
+ return NULL;
+
+ if(strcasecmp(found->variable, variable))
+ return NULL;
+
+ return found;
}
-config_t *lookup_config_next(avl_tree_t *config_tree, config_t *cfg)
-{
- avl_node_t *node;
- config_t *found;
-cp
- node = avl_search_node(config_tree, cfg);
-
- if(node)
- {
- if(node->next)
- {
- found = (config_t *)node->next->data;
- if(!strcmp(found->variable, cfg->variable))
- return found;
- }
- }
-
- return NULL;
+config_t *lookup_config_next(avl_tree_t *config_tree, const config_t *cfg) {
+ avl_node_t *node;
+ config_t *found;
+
+ node = avl_search_node(config_tree, cfg);
+
+ if(node) {
+ if(node->next) {
+ found = node->next->data;
+
+ if(!strcasecmp(found->variable, cfg->variable))
+ return found;
+ }
+ }
+
+ return NULL;
}
-
-int get_config_bool(config_t *cfg, int *result)
-{
-cp
- if(!cfg)
- return 0;
-
- if(!strcasecmp(cfg->value, "yes"))
- {
- *result = 1;
- return 1;
- }
- else if(!strcasecmp(cfg->value, "np"))
- {
- *result = 0;
- return 1;
- }
-
- syslog(LOG_ERR, _("\"yes\" or \"no\" expected for configuration variable %s in %s line %d"),
- cfg->variable, cfg->file, cfg->line);
-
- return 0;
+
+bool get_config_bool(const config_t *cfg, bool *result) {
+ if(!cfg)
+ return false;
+
+ if(!strcasecmp(cfg->value, "yes")) {
+ *result = true;
+ return true;
+ } else if(!strcasecmp(cfg->value, "no")) {
+ *result = false;
+ return true;
+ }
+
+ logger(LOG_ERR, "\"yes\" or \"no\" expected for configuration variable %s in %s line %d",
+ cfg->variable, cfg->file, cfg->line);
+
+ return false;
}
-int get_config_int(config_t *cfg, int *result)
-{
-cp
- if(!cfg)
- return 0;
-
- if(sscanf(cfg->value, "%d", result) == 1)
- return 1;
-
- syslog(LOG_ERR, _("Integer expected for configuration variable %s in %s line %d"),
- cfg->variable, cfg->file, cfg->line);
- return 0;
+bool get_config_int(const config_t *cfg, int *result) {
+ if(!cfg)
+ return false;
+
+ if(sscanf(cfg->value, "%d", result) == 1)
+ return true;
+
+ logger(LOG_ERR, "Integer expected for configuration variable %s in %s line %d",
+ cfg->variable, cfg->file, cfg->line);
+
+ return false;
+}
+
+bool get_config_string(const config_t *cfg, char **result) {
+ if(!cfg)
+ return false;
+
+ *result = xstrdup(cfg->value);
+
+ return true;
}
-int get_config_string(config_t *cfg, char **result)
-{
-cp
- if(!cfg)
- return 0;
+bool get_config_address(const config_t *cfg, struct addrinfo **result) {
+ struct addrinfo *ai;
- *result = cfg->value;
- return 1;
+ if(!cfg)
+ return false;
+
+ ai = str2addrinfo(cfg->value, NULL, 0);
+
+ if(ai) {
+ *result = ai;
+ return true;
+ }
+
+ logger(LOG_ERR, "Hostname or IP address expected for configuration variable %s in %s line %d",
+ cfg->variable, cfg->file, cfg->line);
+
+ return false;
}
-int get_config_subnet(config_t *cfg, subnet_t **result)
-{
- subnet_t *subnet;
-cp
- if(!cfg)
- return 0;
-
-#warning FIXME
-/* ip = strtoip(cfg->value); */
-
-/* if(!ip) */
-/* { */
-/* syslog(LOG_ERR, _("IP address expected for configuration variable %s in %s line %d"), */
-/* cfg->variable, cfg->file, cfg->line); */
-/* return 0; */
-/* } */
-
- /* Teach newbies what subnets are... */
-
-/* if((ip->address & ip->mask) != ip->address) */
-/* { */
-/* syslog(LOG_ERR, _("Network address and subnet mask for configuration variable %s in %s line %d"), */
-/* cfg->variable, cfg->file, cfg->line); */
-/* free(ip); */
-/* return 0; */
-/* } */
-
-/* subnet = new_subnet(); */
-/* subnet->type = SUBNET_IP; */
-/* subnet->net.ip.address = ip->address; */
-/* subnet->net.ip.mask = ip->mask; */
-
-/* free(ip); */
-
-/* *result = subnet; */
-
- return 1;
+bool get_config_subnet(const config_t *cfg, subnet_t ** result) {
+ subnet_t subnet = {0};
+
+ if(!cfg)
+ return false;
+
+ if(!str2net(&subnet, cfg->value)) {
+ logger(LOG_ERR, "Subnet expected for configuration variable %s in %s line %d",
+ cfg->variable, cfg->file, cfg->line);
+ return false;
+ }
+
+ /* Teach newbies what subnets are... */
+
+ if(((subnet.type == SUBNET_IPV4)
+ && !maskcheck(&subnet.net.ipv4.address, subnet.net.ipv4.prefixlength, sizeof(ipv4_t)))
+ || ((subnet.type == SUBNET_IPV6)
+ && !maskcheck(&subnet.net.ipv6.address, subnet.net.ipv6.prefixlength, sizeof(ipv6_t)))) {
+ logger(LOG_ERR, "Network address and prefix length do not match for configuration variable %s in %s line %d",
+ cfg->variable, cfg->file, cfg->line);
+ return false;
+ }
+
+ *(*result = new_subnet()) = subnet;
+
+ return true;
}
/*
Read exactly one line and strip the trailing newline if any. If the
file was on EOF, return NULL. Otherwise, return all the data in a
dynamically allocated buffer.
-
+
If line is non-NULL, it will be used as an initial buffer, to avoid
unnecessary mallocing each time this function is called. If buf is
given, and buf needs to be expanded, the var pointed to by buflen
will be increased.
*/
-char *readline(FILE *fp, char **buf, size_t *buflen)
-{
- char *newline = NULL;
- char *p;
- char *line; /* The array that contains everything that has been read
- so far */
- char *idx; /* Read into this pointer, which points to an offset
- within line */
- size_t size, newsize; /* The size of the current array pointed to by
- line */
- size_t maxlen; /* Maximum number of characters that may be read with
- fgets. This is newsize - oldsize. */
-
- if(feof(fp))
- return NULL;
-
- if((buf != NULL) && (buflen != NULL))
- {
- size = *buflen;
- line = *buf;
- }
- else
- {
- size = 100;
- line = xmalloc(size);
- }
-
- maxlen = size;
- idx = line;
- *idx = 0;
- for(;;)
- {
- errno = 0;
- p = fgets(idx, maxlen, fp);
- if(p == NULL) /* EOF or error */
- {
- if(feof(fp))
- break;
-
- /* otherwise: error; let the calling function print an error
- message if applicable */
- free(line);
- return NULL;
+static char *readline(FILE * fp, char **buf, size_t *buflen) {
+ char *newline = NULL;
+ char *p;
+ char *line; /* The array that contains everything that has been read so far */
+ char *idx; /* Read into this pointer, which points to an offset within line */
+ size_t size, newsize; /* The size of the current array pointed to by line */
+ size_t maxlen; /* Maximum number of characters that may be read with fgets. This is newsize - oldsize. */
+
+ if(feof(fp))
+ return NULL;
+
+ if(buf && buflen) {
+ size = *buflen;
+ line = *buf;
+ } else {
+ size = 100;
+ line = xmalloc(size);
}
- newline = strchr(p, '\n');
- if(newline == NULL)
- /* We haven't yet read everything to the end of the line */
- {
- newsize = size << 1;
- line = xrealloc(line, newsize);
- idx = &line[size - 1];
- maxlen = newsize - size + 1;
- size = newsize;
+ maxlen = size;
+ idx = line;
+ *idx = 0;
+
+ for(;;) {
+ errno = 0;
+ p = fgets(idx, maxlen, fp);
+
+ if(!p) { /* EOF or error */
+ if(feof(fp))
+ break;
+
+ /* otherwise: error; let the calling function print an error message if applicable */
+ free(line);
+ return NULL;
+ }
+
+ newline = strchr(p, '\n');
+
+ if(!newline) { /* We haven't yet read everything to the end of the line */
+ newsize = size << 1;
+ line = xrealloc(line, newsize);
+ idx = &line[size - 1];
+ maxlen = newsize - size + 1;
+ size = newsize;
+ } else {
+ *newline = '\0'; /* kill newline */
+ if(newline > p && newline[-1] == '\r') /* and carriage return if necessary */
+ newline[-1] = '\0';
+ break; /* yay */
+ }
}
- else
- {
- *newline = '\0'; /* kill newline */
- break; /* yay */
+
+ if(buf && buflen) {
+ *buflen = size;
+ *buf = line;
}
- }
-
- if((buf != NULL) && (buflen != NULL))
- {
- *buflen = size;
- *buf = line;
- }
- return line;
+
+ return line;
}
/*
Parse a configuration file and put the results in the configuration tree
starting at *base.
*/
-int read_config_file(avl_tree_t *config_tree, const char *fname)
-{
- int err = -2; /* Parse error */
- FILE *fp;
- char *buffer, *line;
- char *variable, *value;
- int lineno = 0, ignore = 0;
- config_t *cfg;
- size_t bufsize;
-
-cp
- if((fp = fopen (fname, "r")) == NULL)
- {
- syslog(LOG_ERR, _("Cannot open config file %s: %m"), fname);
- return -3;
- }
-
- bufsize = 100;
- buffer = xmalloc(bufsize);
-
- for(;;)
- {
- if((line = readline(fp, &buffer, &bufsize)) == NULL)
- {
- err = -1;
- break;
+int read_config_file(avl_tree_t *config_tree, const char *fname) {
+ int err = -2; /* Parse error */
+ FILE *fp;
+ char *buffer, *line;
+ char *variable, *value, *eol;
+ int lineno = 0;
+ int len;
+ bool ignore = false;
+ config_t *cfg;
+ size_t bufsize;
+
+ fp = fopen(fname, "r");
+
+ if(!fp) {
+ logger(LOG_ERR, "Cannot open config file %s: %s", fname,
+ strerror(errno));
+ return -3;
}
- if(feof(fp))
- {
- err = 0;
- break;
+ bufsize = 100;
+ buffer = xmalloc(bufsize);
+
+ for(;;) {
+ if(feof(fp)) {
+ err = 0;
+ break;
+ }
+
+ line = readline(fp, &buffer, &bufsize);
+
+ if(!line) {
+ err = -1;
+ break;
+ }
+
+ lineno++;
+
+ if(!*line || *line == '#')
+ continue;
+
+ if(ignore) {
+ if(!strncmp(line, "-----END", 8))
+ ignore = false;
+ continue;
+ }
+
+ if(!strncmp(line, "-----BEGIN", 10)) {
+ ignore = true;
+ continue;
+ }
+
+ variable = value = line;
+
+ eol = line + strlen(line);
+ while(strchr("\t ", *--eol))
+ *eol = '\0';
+
+ len = strcspn(value, "\t =");
+ value += len;
+ value += strspn(value, "\t ");
+ if(*value == '=') {
+ value++;
+ value += strspn(value, "\t ");
+ }
+ variable[len] = '\0';
+
+
+ if(!*value) {
+ logger(LOG_ERR, "No value for variable `%s' on line %d while reading config file %s",
+ variable, lineno, fname);
+ break;
+ }
+
+ cfg = new_config();
+ cfg->variable = xstrdup(variable);
+ cfg->value = xstrdup(value);
+ cfg->file = xstrdup(fname);
+ cfg->line = lineno;
+
+ config_add(config_tree, cfg);
}
- lineno++;
-
- if((variable = strtok(line, "\t =")) == NULL)
- continue; /* no tokens on this line */
-
- if(variable[0] == '#')
- continue; /* comment: ignore */
-
- if(!strcmp(variable, "-----BEGIN"))
- ignore = 1;
-
- if(!ignore)
- {
- if(((value = strtok(NULL, "\t\n\r =")) == NULL) || value[0] == '#')
- {
- syslog(LOG_ERR, _("No value for variable `%s' on line %d while reading config file %s"),
- variable, lineno, fname);
- break;
- }
-
- cfg = new_config();
- cfg->variable = xstrdup(variable);
- cfg->value = xstrdup(value);
- cfg->file = xstrdup(fname);
- cfg->line = lineno;
-
- config_add(config_tree, cfg);
- }
-
- if(!strcmp(variable, "-----END"))
- ignore = 0;
- }
-
- free(buffer);
- fclose (fp);
-cp
- return err;
-}
+ free(buffer);
+ fclose(fp);
-int read_server_config()
-{
- char *fname;
- int x;
-cp
- asprintf(&fname, "%s/tinc.conf", confbase);
- x = read_config_file(config_tree, fname);
- if(x == -1) /* System error: complain */
- {
- syslog(LOG_ERR, _("Failed to read `%s': %m"),
- fname);
- }
- free(fname);
-cp
- return x;
+ return err;
}
-int isadir(const char* f)
-{
- struct stat s;
+bool read_server_config() {
+ char *fname;
+ int x;
+
+ xasprintf(&fname, "%s/tinc.conf", confbase);
+ x = read_config_file(config_tree, fname);
+
+ if(x == -1) { /* System error: complain */
+ logger(LOG_ERR, "Failed to read `%s': %s", fname, strerror(errno));
+ }
+
+ free(fname);
- if(stat(f, &s) < 0)
- return 0;
- else
- return S_ISDIR(s.st_mode);
+ return x == 0;
}
-int is_safe_path(const char *file)
-{
- char *p;
- const char *f;
- char x;
- struct stat s;
- char l[MAXBUFSIZE];
-
- if(*file != '/')
- {
- syslog(LOG_ERR, _("`%s' is not an absolute path"), file);
- return 0;
- }
-
- p = strrchr(file, '/');
-
- if(p == file) /* It's in the root */
- p++;
-
- x = *p;
- *p = '\0';
-
- f = file;
-check1:
- if(lstat(f, &s) < 0)
- {
- syslog(LOG_ERR, _("Couldn't stat `%s': %m"),
- f);
- return 0;
- }
-
- if(s.st_uid != geteuid())
- {
- syslog(LOG_ERR, _("`%s' is owned by UID %d instead of %d"),
- f, s.st_uid, geteuid());
- return 0;
- }
-
- if(S_ISLNK(s.st_mode))
- {
- syslog(LOG_WARNING, _("Warning: `%s' is a symlink"),
- f);
-
- if(readlink(f, l, MAXBUFSIZE) < 0)
- {
- syslog(LOG_ERR, _("Unable to read symbolic link `%s': %m"), f);
- return 0;
- }
-
- f = l;
- goto check1;
- }
-
- *p = x;
- f = file;
-
-check2:
- if(lstat(f, &s) < 0 && errno != ENOENT)
- {
- syslog(LOG_ERR, _("Couldn't stat `%s': %m"),
- f);
- return 0;
- }
-
- if(errno == ENOENT)
- return 1;
-
- if(s.st_uid != geteuid())
- {
- syslog(LOG_ERR, _("`%s' is owned by UID %d instead of %d"),
- f, s.st_uid, geteuid());
- return 0;
- }
-
- if(S_ISLNK(s.st_mode))
- {
- syslog(LOG_WARNING, _("Warning: `%s' is a symlink"),
- f);
-
- if(readlink(f, l, MAXBUFSIZE) < 0)
- {
- syslog(LOG_ERR, _("Unable to read symbolic link `%s': %m"), f);
- return 0;
- }
-
- f = l;
- goto check2;
- }
-
- if(s.st_mode & 0007)
- {
- /* Accessible by others */
- syslog(LOG_ERR, _("`%s' has unsecure permissions"),
- f);
- return 0;
- }
-
- return 1;
+FILE *ask_and_open(const char *filename, const char *what) {
+ FILE *r;
+ char *directory;
+ char *fn;
+
+ /* Check stdin and stdout */
+ if(!isatty(0) || !isatty(1)) {
+ /* Argh, they are running us from a script or something. Write
+ the files to the current directory and let them burn in hell
+ for ever. */
+ fn = xstrdup(filename);
+ } else {
+ /* Ask for a file and/or directory name. */
+ fprintf(stdout, "Please enter a file to save %s to [%s]: ",
+ what, filename);
+ fflush(stdout);
+
+ fn = readline(stdin, NULL, NULL);
+
+ if(!fn) {
+ fprintf(stderr, "Error while reading stdin: %s\n",
+ strerror(errno));
+ return NULL;
+ }
+
+ if(!strlen(fn))
+ /* User just pressed enter. */
+ fn = xstrdup(filename);
+ }
+
+#ifdef HAVE_MINGW
+ if(fn[0] != '\\' && fn[0] != '/' && !strchr(fn, ':')) {
+#else
+ if(fn[0] != '/') {
+#endif
+ /* The directory is a relative path or a filename. */
+ char *p;
+
+ directory = get_current_dir_name();
+ xasprintf(&p, "%s/%s", directory, fn);
+ free(fn);
+ free(directory);
+ fn = p;
+ }
+
+ umask(0077); /* Disallow everything for group and other */
+
+ /* Open it first to keep the inode busy */
+
+ r = fopen(fn, "r+") ?: fopen(fn, "w+");
+
+ if(!r) {
+ fprintf(stderr, "Error opening file `%s': %s\n",
+ fn, strerror(errno));
+ free(fn);
+ return NULL;
+ }
+
+ free(fn);
+
+ return r;
}
-FILE *ask_and_safe_open(const char* filename, const char* what, const char* mode)
-{
- FILE *r;
- char *directory;
- char *fn;
-
- /* Check stdin and stdout */
- if(!isatty(0) || !isatty(1))
- {
- /* Argh, they are running us from a script or something. Write
- the files to the current directory and let them burn in hell
- for ever. */
- fn = xstrdup(filename);
- }
- else
- {
- /* Ask for a file and/or directory name. */
- fprintf(stdout, _("Please enter a file to save %s to [%s]: "),
- what, filename);
- fflush(stdout);
-
- if((fn = readline(stdin, NULL, NULL)) == NULL)
- {
- fprintf(stderr, _("Error while reading stdin: %s\n"), strerror(errno));
- return NULL;
+bool disable_old_keys(FILE *f) {
+ char buf[100];
+ long pos;
+ bool disabled = false;
+
+ rewind(f);
+ pos = ftell(f);
+
+ while(fgets(buf, sizeof buf, f)) {
+ if(!strncmp(buf, "-----BEGIN RSA", 14)) {
+ buf[11] = 'O';
+ buf[12] = 'L';
+ buf[13] = 'D';
+ fseek(f, pos, SEEK_SET);
+ fputs(buf, f);
+ disabled = true;
+ }
+ else if(!strncmp(buf, "-----END RSA", 12)) {
+ buf[ 9] = 'O';
+ buf[10] = 'L';
+ buf[11] = 'D';
+ fseek(f, pos, SEEK_SET);
+ fputs(buf, f);
+ disabled = true;
+ }
+ pos = ftell(f);
}
- if(strlen(fn) == 0)
- /* User just pressed enter. */
- fn = xstrdup(filename);
- }
-
- if((strchr(fn, '/') == NULL) || (fn[0] != '/'))
- {
- /* The directory is a relative path or a filename. */
- char *p;
-
- directory = get_current_dir_name();
- asprintf(&p, "%s/%s", directory, fn);
- free(fn);
- free(directory);
- fn = p;
- }
-
- umask(0077); /* Disallow everything for group and other */
-
- /* Open it first to keep the inode busy */
- if((r = fopen(fn, mode)) == NULL)
- {
- fprintf(stderr, _("Error opening file `%s': %s\n"),
- fn, strerror(errno));
- free(fn);
- return NULL;
- }
-
- /* Then check the file for nasty attacks */
- if(!is_safe_path(fn)) /* Do not permit any directories that are
- readable or writeable by other users. */
- {
- fprintf(stderr, _("The file `%s' (or any of the leading directories) has unsafe permissions.\n"
- "I will not create or overwrite this file.\n"),
- fn);
- fclose(r);
- free(fn);
- return NULL;
- }
-
- free(fn);
-
- return r;
+ return disabled;
}
projects / tinc / blobdiff