Import Upstream version 1.1~pre2
This commit is contained in:
Guus Sliepen
parent
a04a7bcd67
commit
02de1cd2f1
172 changed files with 32291 additions and 25994 deletions
410
src/conf.c
410
src/conf.c
|
|
@ -2,9 +2,9 @@
|
|||
conf.c -- configuration code
|
||||
Copyright (C) 1998 Robert van der Meulen
|
||||
1998-2005 Ivo Timmermans
|
||||
2000-2014 Guus Sliepen <guus@tinc-vpn.org>
|
||||
2000-2010 Guus Sliepen <guus@tinc-vpn.org>
|
||||
2010-2011 Julien Muchembled <jm@jmuchemb.eu>
|
||||
2000 Cris van Pelt
|
||||
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
|
||||
|
|
@ -23,23 +23,23 @@
|
|||
|
||||
#include "system.h"
|
||||
|
||||
#include "avl_tree.h"
|
||||
#include "splay_tree.h"
|
||||
#include "connection.h"
|
||||
#include "conf.h"
|
||||
#include "list.h"
|
||||
#include "logger.h"
|
||||
#include "netutl.h" /* for str2address */
|
||||
#include "netutl.h" /* for str2address */
|
||||
#include "protocol.h"
|
||||
#include "utils.h" /* for cp */
|
||||
#include "utils.h" /* for cp */
|
||||
#include "xalloc.h"
|
||||
|
||||
avl_tree_t *config_tree;
|
||||
splay_tree_t *config_tree;
|
||||
|
||||
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 */
|
||||
list_t *cmdline_conf = NULL; /* global/host configuration values given at the command line */
|
||||
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 */
|
||||
list_t *cmdline_conf = NULL; /* global/host configuration values given at the command line */
|
||||
|
||||
|
||||
static int config_compare(const config_t *a, const config_t *b) {
|
||||
|
|
@ -47,32 +47,28 @@ static int config_compare(const config_t *a, const config_t *b) {
|
|||
|
||||
result = strcasecmp(a->variable, b->variable);
|
||||
|
||||
if(result) {
|
||||
if(result)
|
||||
return result;
|
||||
}
|
||||
|
||||
/* give priority to command line options */
|
||||
result = !b->file - !a->file;
|
||||
|
||||
if(result) {
|
||||
if (result)
|
||||
return result;
|
||||
}
|
||||
|
||||
result = a->line - b->line;
|
||||
|
||||
if(result) {
|
||||
if(result)
|
||||
return result;
|
||||
} else {
|
||||
else
|
||||
return a->file ? strcmp(a->file, b->file) : 0;
|
||||
}
|
||||
}
|
||||
|
||||
void init_configuration(avl_tree_t **config_tree) {
|
||||
*config_tree = avl_alloc_tree((avl_compare_t) config_compare, (avl_action_t) free_config);
|
||||
void init_configuration(splay_tree_t ** config_tree) {
|
||||
*config_tree = splay_alloc_tree((splay_compare_t) config_compare, (splay_action_t) free_config);
|
||||
}
|
||||
|
||||
void exit_configuration(avl_tree_t **config_tree) {
|
||||
avl_delete_tree(*config_tree);
|
||||
void exit_configuration(splay_tree_t ** config_tree) {
|
||||
splay_delete_tree(*config_tree);
|
||||
*config_tree = NULL;
|
||||
}
|
||||
|
||||
|
|
@ -81,49 +77,52 @@ config_t *new_config(void) {
|
|||
}
|
||||
|
||||
void free_config(config_t *cfg) {
|
||||
free(cfg->variable);
|
||||
free(cfg->value);
|
||||
free(cfg->file);
|
||||
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) {
|
||||
avl_insert(config_tree, cfg);
|
||||
void config_add(splay_tree_t *config_tree, config_t *cfg) {
|
||||
splay_insert(config_tree, cfg);
|
||||
}
|
||||
|
||||
config_t *lookup_config(const avl_tree_t *config_tree, char *variable) {
|
||||
config_t *lookup_config(splay_tree_t *config_tree, char *variable) {
|
||||
config_t cfg, *found;
|
||||
|
||||
cfg.variable = variable;
|
||||
cfg.file = NULL;
|
||||
cfg.line = 0;
|
||||
|
||||
found = avl_search_closest_greater(config_tree, &cfg);
|
||||
found = splay_search_closest_greater(config_tree, &cfg);
|
||||
|
||||
if(!found) {
|
||||
if(!found)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if(strcasecmp(found->variable, variable)) {
|
||||
if(strcasecmp(found->variable, variable))
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return found;
|
||||
}
|
||||
|
||||
config_t *lookup_config_next(const avl_tree_t *config_tree, const config_t *cfg) {
|
||||
avl_node_t *node;
|
||||
config_t *lookup_config_next(splay_tree_t *config_tree, const config_t *cfg) {
|
||||
splay_node_t *node;
|
||||
config_t *found;
|
||||
|
||||
node = avl_search_node(config_tree, cfg);
|
||||
node = splay_search_node(config_tree, cfg);
|
||||
|
||||
if(node) {
|
||||
if(node->next) {
|
||||
found = node->next->data;
|
||||
|
||||
if(!strcasecmp(found->variable, cfg->variable)) {
|
||||
if(!strcasecmp(found->variable, cfg->variable))
|
||||
return found;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -131,9 +130,8 @@ config_t *lookup_config_next(const avl_tree_t *config_tree, const config_t *cfg)
|
|||
}
|
||||
|
||||
bool get_config_bool(const config_t *cfg, bool *result) {
|
||||
if(!cfg) {
|
||||
if(!cfg)
|
||||
return false;
|
||||
}
|
||||
|
||||
if(!strcasecmp(cfg->value, "yes")) {
|
||||
*result = true;
|
||||
|
|
@ -144,30 +142,27 @@ bool get_config_bool(const config_t *cfg, bool *result) {
|
|||
}
|
||||
|
||||
logger(LOG_ERR, "\"yes\" or \"no\" expected for configuration variable %s in %s line %d",
|
||||
cfg->variable, cfg->file, cfg->line);
|
||||
cfg->variable, cfg->file, cfg->line);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool get_config_int(const config_t *cfg, int *result) {
|
||||
if(!cfg) {
|
||||
if(!cfg)
|
||||
return false;
|
||||
}
|
||||
|
||||
if(sscanf(cfg->value, "%d", result) == 1) {
|
||||
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);
|
||||
cfg->variable, cfg->file, cfg->line);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool get_config_string(const config_t *cfg, char **result) {
|
||||
if(!cfg) {
|
||||
if(!cfg)
|
||||
return false;
|
||||
}
|
||||
|
||||
*result = xstrdup(cfg->value);
|
||||
|
||||
|
|
@ -177,9 +172,8 @@ bool get_config_string(const config_t *cfg, char **result) {
|
|||
bool get_config_address(const config_t *cfg, struct addrinfo **result) {
|
||||
struct addrinfo *ai;
|
||||
|
||||
if(!cfg) {
|
||||
if(!cfg)
|
||||
return false;
|
||||
}
|
||||
|
||||
ai = str2addrinfo(cfg->value, NULL, 0);
|
||||
|
||||
|
|
@ -189,32 +183,31 @@ bool get_config_address(const config_t *cfg, struct addrinfo **result) {
|
|||
}
|
||||
|
||||
logger(LOG_ERR, "Hostname or IP address expected for configuration variable %s in %s line %d",
|
||||
cfg->variable, cfg->file, cfg->line);
|
||||
cfg->variable, cfg->file, cfg->line);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool get_config_subnet(const config_t *cfg, subnet_t **result) {
|
||||
subnet_t subnet = {0};
|
||||
bool get_config_subnet(const config_t *cfg, subnet_t ** result) {
|
||||
subnet_t subnet = {NULL};
|
||||
|
||||
if(!cfg) {
|
||||
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);
|
||||
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)))) {
|
||||
&& !maskcheck(&subnet.net.ipv4.address, subnet.net.ipv4.prefixlength, sizeof subnet.net.ipv4.address))
|
||||
|| ((subnet.type == SUBNET_IPV6)
|
||||
&& !maskcheck(&subnet.net.ipv6.address, subnet.net.ipv6.prefixlength, sizeof subnet.net.ipv6.address))) {
|
||||
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);
|
||||
cfg->variable, cfg->file, cfg->line);
|
||||
return false;
|
||||
}
|
||||
|
||||
|
|
@ -226,31 +219,26 @@ bool get_config_subnet(const config_t *cfg, subnet_t **result) {
|
|||
/*
|
||||
Read exactly one line and strip the trailing newline if any.
|
||||
*/
|
||||
static char *readline(FILE *fp, char *buf, size_t buflen) {
|
||||
static char *readline(FILE * fp, char *buf, size_t buflen) {
|
||||
char *newline = NULL;
|
||||
char *p;
|
||||
|
||||
if(feof(fp)) {
|
||||
if(feof(fp))
|
||||
return NULL;
|
||||
}
|
||||
|
||||
p = fgets(buf, buflen, fp);
|
||||
|
||||
if(!p) {
|
||||
if(!p)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
newline = strchr(p, '\n');
|
||||
|
||||
if(!newline) {
|
||||
if(!newline)
|
||||
return buf;
|
||||
}
|
||||
|
||||
*newline = '\0'; /* kill newline */
|
||||
|
||||
if(newline > p && newline[-1] == '\r') { /* and carriage return if necessary */
|
||||
*newline = '\0'; /* kill newline */
|
||||
if(newline > p && newline[-1] == '\r') /* and carriage return if necessary */
|
||||
newline[-1] = '\0';
|
||||
}
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
|
@ -262,32 +250,26 @@ config_t *parse_config_line(char *line, const char *fname, int lineno) {
|
|||
variable = value = line;
|
||||
|
||||
eol = line + strlen(line);
|
||||
|
||||
while(strchr("\t ", *--eol)) {
|
||||
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) {
|
||||
const char err[] = "No value for variable";
|
||||
|
||||
if(fname)
|
||||
if (fname)
|
||||
logger(LOG_ERR, "%s `%s' on line %d while reading config file %s",
|
||||
err, variable, lineno, fname);
|
||||
err, variable, lineno, fname);
|
||||
else
|
||||
logger(LOG_ERR, "%s `%s' in command line option %d",
|
||||
err, variable, lineno);
|
||||
|
||||
err, variable, lineno);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
|
@ -304,7 +286,7 @@ config_t *parse_config_line(char *line, const char *fname, int lineno) {
|
|||
Parse a configuration file and put the results in the configuration tree
|
||||
starting at *base.
|
||||
*/
|
||||
bool read_config_file(avl_tree_t *config_tree, const char *fname) {
|
||||
bool read_config_file(splay_tree_t *config_tree, const char *fname) {
|
||||
FILE *fp;
|
||||
char buffer[MAX_STRING_SIZE];
|
||||
char *line;
|
||||
|
|
@ -321,41 +303,33 @@ bool read_config_file(avl_tree_t *config_tree, const char *fname) {
|
|||
}
|
||||
|
||||
for(;;) {
|
||||
line = readline(fp, buffer, sizeof(buffer));
|
||||
line = readline(fp, buffer, sizeof buffer);
|
||||
|
||||
if(!line) {
|
||||
if(feof(fp)) {
|
||||
if(feof(fp))
|
||||
result = true;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
lineno++;
|
||||
|
||||
if(!*line || *line == '#') {
|
||||
if(!*line || *line == '#')
|
||||
continue;
|
||||
}
|
||||
|
||||
if(ignore) {
|
||||
if(!strncmp(line, "-----END", 8)) {
|
||||
if(!strncmp(line, "-----END", 8))
|
||||
ignore = false;
|
||||
}
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
|
||||
if(!strncmp(line, "-----BEGIN", 10)) {
|
||||
ignore = true;
|
||||
continue;
|
||||
}
|
||||
|
||||
cfg = parse_config_line(line, fname, lineno);
|
||||
|
||||
if(!cfg) {
|
||||
if (!cfg)
|
||||
break;
|
||||
}
|
||||
|
||||
config_add(config_tree, cfg);
|
||||
}
|
||||
|
||||
|
|
@ -364,234 +338,122 @@ bool read_config_file(avl_tree_t *config_tree, const char *fname) {
|
|||
return result;
|
||||
}
|
||||
|
||||
void read_config_options(avl_tree_t *config_tree, const char *prefix) {
|
||||
void read_config_options(splay_tree_t *config_tree, const char *prefix) {
|
||||
list_node_t *node, *next;
|
||||
size_t prefix_len = prefix ? strlen(prefix) : 0;
|
||||
|
||||
for(const list_node_t *node = cmdline_conf->tail; node; node = node->prev) {
|
||||
const config_t *cfg = node->data;
|
||||
for(node = cmdline_conf->tail; node; node = next) {
|
||||
config_t *orig_cfg, *cfg = (config_t *)node->data;
|
||||
next = node->prev;
|
||||
|
||||
if(!prefix) {
|
||||
if(strchr(cfg->variable, '.')) {
|
||||
if(strchr(cfg->variable, '.'))
|
||||
continue;
|
||||
}
|
||||
node->data = NULL;
|
||||
list_unlink_node(cmdline_conf, node);
|
||||
} else {
|
||||
if(strncmp(prefix, cfg->variable, prefix_len) ||
|
||||
cfg->variable[prefix_len] != '.') {
|
||||
cfg->variable[prefix_len] != '.')
|
||||
continue;
|
||||
}
|
||||
/* Because host configuration is parsed again when
|
||||
reconnecting, nodes must not be freed when a prefix
|
||||
is given. */
|
||||
orig_cfg = cfg;
|
||||
cfg = new_config();
|
||||
cfg->variable = xstrdup(orig_cfg->variable + prefix_len + 1);
|
||||
cfg->value = xstrdup(orig_cfg->value);
|
||||
cfg->file = NULL;
|
||||
cfg->line = orig_cfg->line;
|
||||
}
|
||||
|
||||
config_t *new = new_config();
|
||||
|
||||
if(prefix) {
|
||||
new->variable = xstrdup(cfg->variable + prefix_len + 1);
|
||||
} else {
|
||||
new->variable = xstrdup(cfg->variable);
|
||||
}
|
||||
|
||||
new->value = xstrdup(cfg->value);
|
||||
new->file = NULL;
|
||||
new->line = cfg->line;
|
||||
|
||||
config_add(config_tree, new);
|
||||
config_add(config_tree, cfg);
|
||||
}
|
||||
}
|
||||
|
||||
bool read_server_config(void) {
|
||||
char fname[PATH_MAX];
|
||||
char *fname;
|
||||
bool x;
|
||||
|
||||
read_config_options(config_tree, NULL);
|
||||
|
||||
snprintf(fname, sizeof(fname), "%s/tinc.conf", confbase);
|
||||
errno = 0;
|
||||
xasprintf(&fname, "%s/tinc.conf", confbase);
|
||||
x = read_config_file(config_tree, fname);
|
||||
|
||||
// We will try to read the conf files in the "conf.d" dir
|
||||
if(x) {
|
||||
char dname[PATH_MAX];
|
||||
snprintf(dname, sizeof(dname), "%s/conf.d", confbase);
|
||||
DIR *dir = opendir(dname);
|
||||
|
||||
// If we can find this dir
|
||||
if(dir) {
|
||||
struct dirent *ep;
|
||||
|
||||
// We list all the files in it
|
||||
while(x && (ep = readdir(dir))) {
|
||||
size_t l = strlen(ep->d_name);
|
||||
|
||||
// And we try to read the ones that end with ".conf"
|
||||
if(l > 5 && !strcmp(".conf", & ep->d_name[ l - 5 ])) {
|
||||
if((size_t)snprintf(fname, sizeof(fname), "%s/%s", dname, ep->d_name) >= sizeof(fname)) {
|
||||
logger(LOG_ERR, "Pathname too long: %s/%s", dname, ep->d_name);
|
||||
return false;
|
||||
}
|
||||
|
||||
x = read_config_file(config_tree, fname);
|
||||
}
|
||||
}
|
||||
|
||||
closedir(dir);
|
||||
}
|
||||
}
|
||||
|
||||
if(!x && errno) {
|
||||
if(!x) { /* System error: complain */
|
||||
logger(LOG_ERR, "Failed to read `%s': %s", fname, strerror(errno));
|
||||
}
|
||||
|
||||
free(fname);
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
bool read_connection_config(connection_t *c) {
|
||||
char fname[PATH_MAX];
|
||||
char *fname;
|
||||
bool x;
|
||||
|
||||
read_config_options(c->config_tree, c->name);
|
||||
|
||||
snprintf(fname, sizeof(fname), "%s/hosts/%s", confbase, c->name);
|
||||
xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
|
||||
x = read_config_file(c->config_tree, fname);
|
||||
free(fname);
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
static void disable_old_keys(const char *filename) {
|
||||
char tmpfile[PATH_MAX] = "";
|
||||
char buf[1024];
|
||||
bool disabled = false;
|
||||
FILE *r, *w;
|
||||
bool append_config_file(const char *name, const char *key, const char *value) {
|
||||
char *fname;
|
||||
xasprintf(&fname, "%s/hosts/%s", confbase, name);
|
||||
|
||||
r = fopen(filename, "r");
|
||||
FILE *fp = fopen(fname, "a");
|
||||
|
||||
if(!r) {
|
||||
return;
|
||||
if(!fp) {
|
||||
logger(LOG_ERR, "Cannot open config file %s: %s", fname, strerror(errno));
|
||||
} else {
|
||||
fprintf(fp, "\n# The following line was automatically added by tinc\n%s = %s\n", key, value);
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
snprintf(tmpfile, sizeof(tmpfile), "%s.tmp", filename);
|
||||
free(fname);
|
||||
|
||||
w = fopen(tmpfile, "w");
|
||||
return fp;
|
||||
}
|
||||
|
||||
while(fgets(buf, sizeof(buf), r)) {
|
||||
if(!strncmp(buf, "-----BEGIN RSA", 14)) {
|
||||
bool disable_old_keys(FILE *f) {
|
||||
char buf[100];
|
||||
long pos;
|
||||
bool disabled = false;
|
||||
|
||||
rewind(f);
|
||||
pos = ftell(f);
|
||||
|
||||
if(pos < 0)
|
||||
return false;
|
||||
|
||||
while(fgets(buf, sizeof buf, f)) {
|
||||
if(!strncmp(buf, "-----BEGIN RSA", 14)) {
|
||||
buf[11] = 'O';
|
||||
buf[12] = 'L';
|
||||
buf[13] = 'D';
|
||||
if(fseek(f, pos, SEEK_SET))
|
||||
break;
|
||||
if(fputs(buf, f) <= 0)
|
||||
break;
|
||||
disabled = true;
|
||||
} else if(!strncmp(buf, "-----END RSA", 12)) {
|
||||
}
|
||||
else if(!strncmp(buf, "-----END RSA", 12)) {
|
||||
buf[ 9] = 'O';
|
||||
buf[10] = 'L';
|
||||
buf[11] = 'D';
|
||||
if(fseek(f, pos, SEEK_SET))
|
||||
break;
|
||||
if(fputs(buf, f) <= 0)
|
||||
break;
|
||||
disabled = true;
|
||||
}
|
||||
|
||||
if(w && fputs(buf, w) < 0) {
|
||||
disabled = false;
|
||||
pos = ftell(f);
|
||||
if(pos < 0)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(w) {
|
||||
fclose(w);
|
||||
}
|
||||
|
||||
fclose(r);
|
||||
|
||||
if(!w && disabled) {
|
||||
fprintf(stderr, "Warning: old key(s) found, remove them by hand!\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if(disabled) {
|
||||
#ifdef HAVE_MINGW
|
||||
// We cannot atomically replace files on Windows.
|
||||
char bakfile[PATH_MAX] = "";
|
||||
snprintf(bakfile, sizeof(bakfile), "%s.bak", filename);
|
||||
|
||||
if(rename(filename, bakfile) || rename(tmpfile, filename)) {
|
||||
rename(bakfile, filename);
|
||||
#else
|
||||
|
||||
if(rename(tmpfile, filename)) {
|
||||
#endif
|
||||
fprintf(stderr, "Warning: old key(s) found, remove them by hand!\n");
|
||||
} else {
|
||||
#ifdef HAVE_MINGW
|
||||
unlink(bakfile);
|
||||
#endif
|
||||
fprintf(stderr, "Warning: old key(s) found and disabled.\n");
|
||||
}
|
||||
}
|
||||
|
||||
unlink(tmpfile);
|
||||
return disabled;
|
||||
}
|
||||
|
||||
FILE *ask_and_open(const char *filename, const char *what) {
|
||||
FILE *r;
|
||||
char directory[PATH_MAX];
|
||||
char line[PATH_MAX];
|
||||
char abspath[PATH_MAX];
|
||||
const 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 = 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, line, sizeof(line));
|
||||
|
||||
if(!fn) {
|
||||
fprintf(stderr, "Error while reading stdin: %s\n",
|
||||
strerror(errno));
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if(!strlen(fn))
|
||||
/* User just pressed enter. */
|
||||
{
|
||||
fn = 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. */
|
||||
getcwd(directory, sizeof(directory));
|
||||
|
||||
if((size_t)snprintf(abspath, sizeof(abspath), "%s/%s", directory, fn) >= sizeof(abspath)) {
|
||||
fprintf(stderr, "Pathname too long: %s/%s\n", directory, fn);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
fn = abspath;
|
||||
}
|
||||
|
||||
umask(0077); /* Disallow everything for group and other */
|
||||
|
||||
disable_old_keys(fn);
|
||||
|
||||
/* Open it first to keep the inode busy */
|
||||
|
||||
r = fopen(fn, "a");
|
||||
|
||||
if(!r) {
|
||||
fprintf(stderr, "Error opening file `%s': %s\n",
|
||||
fn, strerror(errno));
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue