authorSergey Poznyakoff <>2011-05-18 19:49:09 (GMT)
committer Sergey Poznyakoff <>2011-05-18 21:43:17 (GMT)
commit3bf6241deeaebd9b5dc16a26b214559d3d45838b (patch) (side-by-side diff)
parent22fc942b1a19b93ee15dc79fc9d0b6d1d74f62e6 (diff)
Create individual zone files.
* src/ (EXTRA_DIST): Add cmdline.opt. * src/bindcf.c (bind_zonefile_dir) (zone_file_pattern): New variables. (source_named_conf): More checks. (bindcf_lookup): Rewrite. (flush_zone_list): New function. * cmdline.opt: New option: --force. * src/config.c (sync_kw)<path>: Remove keyword. All uses changed. <zone-conf>: New keyword. (nssync_kw) <slave-status-file> <zonefile-dir,zonefile-pattern> <reload-command>: New keyword. * src/nssync.c (copy_file): Increase changed_zones. Return immediately if in dry-run mode. (compare): Change signature. (synchronize): Rewrite. (check_slave_status): New function. (main): Check slave status. Update all changed zones. Reload bind, if needed. * src/nssync.h (slave_status_file) (reload_command, changed_zones): New externs (sql_get_slave_status): New proto. (nssync) <kwpath>: Remove. <zone_conf_file,zone_tree>: New members. (bindcf_lookup): Change signature. (flush_zone_list, compare): New protos. * src/output.c: Change logic to produce a single file per zone. * src/sqlop.c (sql_get_slave_status): New function. * Switch from foreign to gnu. * AUTHORS: New file. * COPYING: New file. * NEWS: New file. * README: New file.
Diffstat (more/less context) (ignore whitespace changes)
13 files changed, 1235 insertions, 121 deletions
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..ca6ccd1
--- a/dev/null
@@ -0,0 +1 @@
+Sergey Poznyakoff <>
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- a/dev/null
@@ -0,0 +1,674 @@
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+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+ 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ 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, see <>.
+Also add information on how to contact you by electronic and paper mail.
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..592b5e7
--- a/dev/null
+++ b/NEWS
@@ -0,0 +1,33 @@
+NSsync NEWS -- history of user-visible changes. 2011-05-18
+Copyright (C) 2011 Sergey Poznyakoff
+See the end of file for copying conditions.
+Please send cfpeek bug reports to <>
+Version 1.0 (Git)
+Copyright information:
+Copyright (C) 2011 Sergey Poznyakoff
+ Permission is granted to anyone to make or distribute verbatim copies
+ of this document as received, in any medium, provided that the
+ copyright notice and this permission notice are preserved,
+ thus giving the recipient permission to redistribute in turn.
+ Permission is granted to distribute modified versions
+ of this document, or of portions of it,
+ under the above conditions, provided also that they
+ carry prominent notices stating who last changed them.
+Local variables:
+mode: outline
+paragraph-separate: "[ ]*$"
+eval: (add-hook 'write-file-hooks 'time-stamp)
+time-stamp-start: "changes. "
+time-stamp-format: "%:y-%02m-%02d"
+time-stamp-end: "\n"
diff --git a/README b/README
new file mode 100644
index 0000000..1273383
--- a/dev/null
+++ b/README
@@ -0,0 +1,33 @@
+Copyright (C) 2011 Sergey Poznyakoff
+See the end of file for copying conditions.
+* Overview
+* Bug reporting.
+Send bug reports to <>.
+* Copyright information:
+Copyright (C) 2011 Sergey Poznyakoff
+ Permission is granted to anyone to make or distribute verbatim copies
+ of this document as received, in any medium, provided that the
+ copyright notice and this permission notice are preserved,
+ thus giving the recipient permission to redistribute in turn.
+ Permission is granted to distribute modified versions
+ of this document, or of portions of it,
+ under the above conditions, provided also that they
+ carry prominent notices stating who last changed them.
+Local Variables:
+mode: outline
+paragraph-separate: "[ ]*$"
+version-control: never
diff --git a/ b/
index 73b6c1a..5445df8 100644
--- a/
+++ b/
@@ -19,7 +19,7 @@ AC_INIT([nssync], 1.0, [])
-AM_INIT_AUTOMAKE([1.11 foreign tar-ustar dist-xz std-options silent-rules])
+AM_INIT_AUTOMAKE([1.11 gnu tar-ustar dist-xz std-options silent-rules])
# Enable silent rules by default:
diff --git a/src/ b/src/
index cbc616f..055283e 100644
--- a/src/
+++ b/src/
@@ -27,7 +27,7 @@ LDADD=@GRECS_LDADD@
BUILT_SOURCES = cmdline.h
-EXTRA_DIST = cmdline.h
+EXTRA_DIST = cmdline.h cmdline.opt
SUFFIXES=.opt .c .h
diff --git a/src/bindcf.c b/src/bindcf.c
index 88fabda..d87f64b 100644
--- a/src/bindcf.c
+++ b/src/bindcf.c
@@ -18,12 +18,18 @@
char *named_conf_file;
struct grecs_list *bind_include_path;
+char *bind_zonefile_dir;
+char *zone_file_pattern = "$zone";
+static char *bind_working_dir;
static struct grecs_node *bind_tree;
+ struct grecs_list_entry *ep;
+ struct grecs_node *node;
if (bind_include_path) {
struct grecs_list_entry *ep;
@@ -35,56 +41,305 @@ source_named_conf()
grecs_parser_fun = grecs_bind_parser;
if (!named_conf_file)
named_conf_file = "/etc/named.conf";
bind_tree = grecs_parse(named_conf_file);
if (!bind_tree)
+ node = grecs_find_node(bind_tree, "");
+ if (node) {
+ if (node->type != grecs_node_stmt ||
+ !node->v.value ||
+ node->v.value->type != GRECS_TYPE_STRING) {
+ grecs_error(&node->locus, 0,
+ "suspicious directory statement");
+ error_count++;
+ } else
+ bind_working_dir = node->v.value->v.string;
+ }
+ if (!bind_zonefile_dir) {
+ if (bind_working_dir) {
+ bind_zonefile_dir = bind_working_dir;
+ error("warning: no zonefile-dir set; "
+ "assuming %s", bind_zonefile_dir);
+ } else if (bind_include_path) {
+ bind_zonefile_dir = bind_include_path->head->data;
+ error("warning: no zonefile-dir set; "
+ "assuming %s", bind_zonefile_dir);
+ }
+ if (!bind_zonefile_dir) {
+ error("cannot determine directory name for generated"
+ " zone files; set zonefile-dir to fix");
+ exit(EX_CONFIG);
+ }
+ }
+ for (ep = synclist->head; ep; ep = ep->next) {
+ struct nssync *sp = ep->data;
+ struct grecs_node *np;
+ if (strcmp(named_conf_file, sp->zone_conf_file) == 0) {
+ error("zone-conf cannot be the same as named-conf, "
+ "in %s", sp->tag);
+ exit(EX_CONFIG);
+ }
+ if (access(sp->zone_conf_file, F_OK) && errno == ENOENT) {
+ sp->zone_tree = grecs_node_create(grecs_node_root,
+ NULL);
+ } else
+ sp->zone_tree = grecs_parse(sp->zone_conf_file);
+ if (!sp->zone_tree)
+ for (np = sp->zone_tree->down; np; np = np->next) {
+ if (strcmp(np->ident, "zone")) {
+ grecs_error(&np->locus, 0,
+ "only zone statements are allowed");
+ exit(EX_CONFIG);
+ }
+ }
+ }
-const char *
-bindcf_lookup(struct nssync *sp)
+static char *
+absolute_name(const char *name, const char *dir)
- const char *name;
- struct grecs_node *node = grecs_find_node(bind_tree, sp->kwpath);
- if (!node) {
- error("%s: keyword %s not found in %s",
- sp->tag, sp->kwpath, named_conf_file);
- return NULL;
+ char *p;
+ if (name[0] == '/')
+ return grecs_strdup(name);
+ p = grecs_find_include_file(name, 1);
+ if (!p) {
+ size_t s = 0;
+ if (grecs_asprintf(&p, &s, "%s/%s", dir, name))
+ grecs_alloc_die();
- if (!node->v.value) {
- error("%s: no value for %s",
- sp->tag, sp->kwpath);
- return NULL;
+ return p;
+static const char *
+strip_bind_working_dir(const char *name)
+ if (bind_working_dir) {
+ size_t len = strlen(bind_working_dir);
+ if (strncmp(name, bind_working_dir, len) == 0) {
+ if (bind_working_dir[len-1] == '/')
+ return name + len;
+ else if (name[len] == '/')
+ return name + len + 1;
+ }
- if (node->v.value->type != GRECS_TYPE_STRING) {
- error("%s: %s is not a string",
- sp->tag, sp->kwpath);
- return NULL;
+ return name;
+static void
+new_zone(struct nssync *sp, const char *zone, char *file)
+ struct grecs_node *node, *np;
+ debug(1, ("%s: creating new zone file for %s, file %s", sp->tag,
+ zone, file));
+ node = grecs_node_create(grecs_node_block, NULL);
+ node->ident = "zone";
+ node->v.value = grecs_malloc(sizeof(node->v.value[0]));
+ node->v.value->type = GRECS_TYPE_STRING;
+ node->v.value->v.string = grecs_strdup(zone);
+ np = grecs_node_create(grecs_node_stmt, NULL);
+ np->ident = "file";
+ np->v.value = grecs_malloc(sizeof(np->v.value[0]));
+ np->v.value->type = GRECS_TYPE_STRING;
+ np->v.value->v.string = grecs_strdup(file);
+ node->down = np;
+ np = grecs_node_create(grecs_node_stmt, NULL);
+ np->ident = "$found$";
+ grecs_node_bind(node, np, 1);
+ grecs_node_bind(sp->zone_tree, node, 1);
+#define is_safe_char(c) \
+ (isascii(c) && (isalnum(c) || strchr("_.-", (c)) != NULL))
+static char *
+safe_filename(const char *file)
+ size_t size = 0;
+ const char *p;
+ char *name, *q;
+ for (p = file; *p; p++) {
+ if (is_safe_char(*p))
+ size++;
+ else
+ size += 3;
- debug(2, ("%s: found %s at %s:%d",
- sp->tag, sp->kwpath, node->locus.file, node->locus.line));
- name = node->v.value->v.string;
- if (name[0] != '/') {
- char *p = grecs_find_include_file(name, 1);
- if (!p) {
- if (errno == ENOENT) {
- if (bind_include_path) {
- size_t s = 0;
- grecs_asprintf(&p, &s,
- "%s/%s",
- bind_include_path->head->data,
- name);
- }
- }
+ if (size == strlen(file))
+ return grecs_strdup(file);
+ name = grecs_malloc(size + 1);
+ for (p = file, q = name; *p; p++) {
+ if (is_safe_char(*p))
+ *q++ = *p;
+ else {
+ unsigned char n;
+ *q++ = '%';
+ n = ((unsigned char)*p) / 16;
+ *q++ = n > 10 ? n + 'A' : n + '0';
+ n = ((unsigned char)*p) % 16;
+ *q++ = n > 10 ? n + 'A' : n + '0';
+ }
+ }
+ *q = 0;
+ return name;
- if (!p) {
- error("%s: cannot find absolute name for %s: %s",
- sp->tag, name, strerror(errno));
- return NULL;
- }
+char *
+bindcf_lookup(struct nssync *sp, const char *zone)
+ char *env[3];
+ struct wordsplit ws;
+ char *name;
+ struct grecs_node *node;
+ for (node = sp->zone_tree->down; node; node = node->next)
+ if (node->type == grecs_node_block &&
+ strcmp(node->ident, "zone") == 0 &&
+ node->v.value &&
+ node->v.value->type == GRECS_TYPE_STRING &&
+ strcasecmp(node->v.value->v.string, zone) == 0)
+ break;
+ if (node) {
+ struct grecs_node *np = grecs_find_node(node->down, "file");
+ if (!np) {
+ error("%s:%d: no file statement in zone!",
+ node->locus.file, node->locus.line);
+ error_count++;
+ return NULL;
- name = p;
+ if (np->type != grecs_node_stmt ||
+ !np->v.value ||
+ np->v.value->type != GRECS_TYPE_STRING) {
+ error("%s:%d: suspicious file statement",
+ np->locus.file, np->locus.line);
+ error_count++;
+ return NULL;
+ }
+ name = absolute_name(np->v.value->v.string, bind_working_dir);
+ np = grecs_node_create(grecs_node_stmt, NULL);
+ np->ident = "$found$";
+ grecs_node_bind(node, np, 1);
+ return name;
+ }
+ /* No zone statement: new zone */
+ env[0] = "zone";
+ env[1] = safe_filename(zone);
+ env[2] = NULL;
+ ws.ws_env = (const char**)env;
+ if (wordsplit(zone_file_pattern, &ws,
+ error("cannot split zone-file-pattern: %s",
+ wordsplit_strerror(&ws));
+ exit(EX_SOFTWARE);
+ grecs_free(env[1]);
+ name = absolute_name(ws.ws_wordv[0], bind_zonefile_dir);
+ wordsplit_free(&ws);
+ new_zone(sp, zone, name);
return name;
+static void
+output_zone(FILE *fp, struct grecs_node *node)
+ struct grecs_node *np;
+ fprintf(fp, "zone \"%s\" {\n", node->v.value->v.string);
+ fprintf(fp, " type master;\n");
+ np = grecs_find_node(node->down, "file");
+ if (!np)
+ abort();
+ fprintf(fp, " file \"%s\";\n",
+ strip_bind_working_dir(np->v.value->v.string));
+ fprintf(fp, "};\n");
+flush_zone_list(struct nssync *sp)
+ char *fname= NULL;
+ size_t size = 0;
+ mode_t um;
+ struct grecs_node *node;
+ int fd;
+ FILE *fp;
+ unsigned long zone_count = 0;
+ debug(1, ("%s: creating temporary zone list", sp->tag));
+ if (grecs_asprintf(&fname, &size,
+ "%s/nssyncXXXXXX", tempdir))
+ grecs_alloc_die();
+ um = umask(077);
+ fd = mkstemp(fname);
+ umask(um);
+ if (fd == -1) {
+ error("cannot create temporary file %s: %s",
+ fname, strerror(errno));
+ }
+ fp = fdopen(fd, "w+");
+ fprintf(fp, "# Bind configuration include file generated by %s\n",
+ fprintf(fp, "# Do not edit! See %s for details\n", config_file);
+ for (node = sp->zone_tree->down; node; node = node->next) {
+ if (grecs_find_node(node->down, "$found$")) {
+ output_zone(fp, node);
+ zone_count++;
+ } else {
+ char *file;
+ struct grecs_node *np = grecs_find_node(node->down,
+ "file");
+ if (!np) {
+ error("about to delete zone %s, which has "
+ "no file definition",
+ node->v.value->v.string);
+ } else if (file =
+ absolute_name(np->v.value->v.string,
+ bind_working_dir)) {
+ debug(1, ("deleting zone %s, file %s",
+ node->v.value->v.string,
+ file));
+ if (!dry_run_mode && unlink(file)) {
+ error("unlink(%s): %s",
+ file, strerror(errno));
+ }
+ }
+ }
+ }
+ debug(1, ("number of zones: %lu", zone_count));
+ fflush(fp);
+ if (compare(fname, sp->zone_conf_file)) {
+ debug(1, ("recreating %s", sp->zone_conf_file));
+ if (copy_file(fname, fp, sp->zone_conf_file))
+ error_count++;
+ }
+ fclose(fp);
+ unlink(fname);
+ free(fname);
diff --git a/src/cmdline.opt b/src/cmdline.opt
index 5f246af..88439ef 100644
--- a/src/cmdline.opt
+++ b/src/cmdline.opt
@@ -49,6 +49,12 @@ BEGIN
dry_run_mode = 1;
+ [<proceed even if slave status has not changed>])
+ force = 1;
[<use FILE instead of the default configuration>])
diff --git a/src/config.c b/src/config.c
index 6cf5609..aad39cc 100644
--- a/src/config.c
+++ b/src/config.c
@@ -20,9 +20,9 @@
struct grecs_list *synclist;
static struct grecs_keyword sync_kw[] = {
- { "path",
- NULL, "Path of a keyword in named.conf which holds file name for this synchronization block",
- grecs_type_string, NULL, offsetof(struct nssync, kwpath) },
+ { "zone-conf",
+ NULL, "zone configuration file",
+ grecs_type_string, NULL, offsetof(struct nssync, zone_conf_file) },
{ "soa-query",
NULL, "Set query for retrieving SOA records",
grecs_type_string, NULL, offsetof(struct nssync, soa_query) },
@@ -62,8 +62,8 @@ cb_sync(enum grecs_callback_command cmd,
case grecs_callback_section_end:
sp = *pdata;
- if (!sp->kwpath) {
- grecs_error(locus, 0, "path not defined");
+ if (!sp->zone_conf_file) {
+ grecs_error(locus, 0, "zone-conf not defined");
err = 1;
if (!sp->soa_query) {
@@ -113,6 +113,10 @@ static struct grecs_keyword nssync_kw[] = {
"file", "File name of the Certificate Authority (CA) certificate",
grecs_type_string, &sql_cacert },
+ { "slave-status-file",
+ NULL, "Check slave status and save it in the given file",
+ grecs_type_string, &slave_status_file },
{ "tempdir",
NULL, "Name for the temporary directory (must exist)",
grecs_type_string, &tempdir },
@@ -120,13 +124,23 @@ static struct grecs_keyword nssync_kw[] = {
{ "named-conf",
NULL, "Name of the named configuration file",
grecs_type_string, &named_conf_file },
{ "bind-include-path",
NULL, "Set include path for BIND configuration",
grecs_type_string|GRECS_LIST, &bind_include_path },
+ { "zonefile-dir",
+ NULL, "Directory for new zone files",
+ grecs_type_string, &bind_zonefile_dir },
+ { "zonefile-pattern",
+ NULL, "Pattern for new zone file names",
+ grecs_type_string, &zone_file_pattern },
{ "compare-command",
NULL, "Command to compare two zone files",
grecs_type_string, &compare_command },
+ { "reload-command",
+ NULL, "Command to reload the nameserver",
+ grecs_type_string, &reload_command },
{ "sync", N_("tag: string"), N_("Define a synchrinization block"),
grecs_type_section, NULL, 0, cb_sync, NULL, sync_kw },
diff --git a/src/nssync.c b/src/nssync.c
index fac4b3e..3d90c40 100644
--- a/src/nssync.c
+++ b/src/nssync.c
@@ -17,16 +17,21 @@
#include "nssync.h"
#include <sys/stat.h>
#include <fcntl.h>
-#include "cmdline.h"
int lint_mode;
int dry_run_mode;
int preprocess_only;
int debug_level;
char *config_file = SYSCONFDIR "/nssync.conf";
+char *slave_status_file;
+int force;
char *tempdir;
+char *reload_command = "/usr/sbin/rndc reload";
char *compare_command = "cmp $oldfile $newfile > /dev/null";
unsigned error_count;
+unsigned changed_zones;
+#include "cmdline.h"
verror(const char *fmt, va_list ap)
@@ -67,6 +72,10 @@ copy_file(const char *file_name, FILE *infile, const char *dst_file)
size_t bufsize;
size_t fsize;
+ changed_zones++;
+ if (dry_run_mode)
+ return 0;
if (fstat(fileno(infile), &st)) {
error("cannot stat source file %s: %s",
file_name, strerror(errno));
@@ -124,38 +133,37 @@ copy_file(const char *file_name, FILE *infile, const char *dst_file)
return rc;
-move_file(const char *file, FILE *fp, const char *dst_file)
+compare(const char *oldfile, const char *newfile)
- int rc = 0;
- struct stat st;
- mode_t mode;
- if (stat(dst_file, &st)) {
- if (errno == ENOENT)
- mode = 0640;
- else {
- error("cannot stat %s: %s", dst_file, strerror(errno));
- return 1;
- }
- } else
- mode = st.st_mode & 0777;
+ const char *env[5];
+ struct wordsplit ws;
+ int rc;
+ if (access(newfile, F_OK) && errno == ENOENT) {
+ debug(2,("destination file %s does not exist", newfile));
+ return 1;
+ }
- if (rename(file, dst_file)) {
- if (errno == EXDEV) {
- if (copy_file(file, fp, dst_file)) {
- error("cannot copy %s to %s: %s",
- file, dst_file, strerror(errno));
- rc = 1;
- } else
- unlink(file);
- } else {
- error("cannot move %s to %s: %s",
- file, dst_file, strerror(errno));
- rc = 1;
- }
- } else
- chmod(dst_file, mode);
+ env[0] = "oldfile";
+ env[1] = oldfile;
+ env[2] = "newfile";
+ env[3] = newfile;
+ env[4] = 0;
+ ws.ws_env = env;
+ if (wordsplit(compare_command, &ws,
+ error("cannot split compare-command: %s",
+ wordsplit_strerror(&ws));
+ exit(EX_SOFTWARE);
+ }
+ debug(2,("running %s", ws.ws_wordv[0]));
+ rc = system(ws.ws_wordv[0]);
+ wordsplit_free(&ws);
+ debug(2,("command returned %d", rc));
return rc;
@@ -171,12 +179,6 @@ synchronize(struct nssync *sp)
int rc;
debug(1, ("processing %s", sp->tag));
- file_name = bindcf_lookup(sp);
- if (!file_name)
- return;
- sp->file_name = file_name;
- debug(2, ("%s: file %s", sp->tag, sp->file_name));
if (grecs_asprintf(&sp->temp_file_name, &size,
"%s/%s.tmp", tempdir, sp->tag))
@@ -190,41 +192,49 @@ synchronize(struct nssync *sp)
- fflush(sp->fp);
- env[0] = "oldfile";
- env[1] = sp->file_name;
- env[2] = "newfile";
- env[3] = sp->temp_file_name;
- env[4] = 0;
- ws.ws_env = env;
- if (wordsplit(compare_command, &ws,
- error("cannot split compare-command: %s",
- wordsplit_strerror(&ws));
- exit(EX_SOFTWARE);
+ if (!dry_run_mode)
+ unlink(sp->temp_file_name);
+ free(sp->temp_file_name);
+ FILE *fp = fopen(slave_status_file, "r");
+ char *saved_file = NULL;
+ char *saved_off;
+ char *buf = NULL;
+ size_t size = 0;
+ char *sql_file, *sql_off;
+ if (fp) {
+ if (grecs_getline(&buf, &size, fp) > 0) {
+ buf[strlen(buf)-1] = 0;
+ saved_file = buf;
+ saved_off = strchr(saved_file, ' ');
+ if (saved_off)
+ *saved_off++ = 0;
+ }
+ fclose(fp);
- debug(1,("running %s", ws.ws_wordv[0]));
- rc = system(ws.ws_wordv[0]);
- wordsplit_free(&ws);
- debug(1,("command returned %d", rc));
- if (rc) {
- debug(1,("copying %s to %s", sp->temp_file_name,
- sp->file_name));
- if (!dry_run_mode &&
- move_file(sp->temp_file_name, sp->fp, sp->file_name))
- error_count++;
+ if (sql_get_slave_status(&sql_file, &sql_off))
+ unlink(slave_status_file);
+ else if (!force && saved_file && saved_off &&
+ strcmp(sql_file, saved_file) == 0 &&
+ strcmp(sql_off, saved_off) == 0) {
+ debug(1, ("slave status hasn't changed: nothing to do"));
+ exit(0);
- fclose(sp->fp);
- sp->fp = NULL;
- if (dry_run_mode)
- return;
- unlink(sp->temp_file_name);
+ fp = fopen(slave_status_file, "w");
+ if (fp) {
+ fprintf(fp, "%s %s\n", sql_file, sql_off);
+ fclose(fp);
+ }
+ free(sql_file);
+ free(sql_off);
main(int argc, char **argv)
@@ -239,8 +249,31 @@ main(int argc, char **argv)
+ if (slave_status_file)
+ check_slave_status();
for (ep = synclist->head; ep; ep = ep->next)
- exit(error_count ? EX_UNAVAILABLE : 0);
+ if (error_count)
+ for (ep = synclist->head; ep; ep = ep->next)
+ flush_zone_list(ep->data);
+ if (error_count)
+ if (changed_zones) {
+ debug(1,("about to run %s", reload_command));
+ if (!dry_run_mode) {
+ int rc = system(reload_command);
+ if (rc) {
+ debug(1,("reload command returned %d", rc));
+ }
+ }
+ }
+ exit(0);
diff --git a/src/nssync.h b/src/nssync.h
index 3541250..bb15d82 100644
--- a/src/nssync.h
+++ b/src/nssync.h
@@ -32,8 +32,12 @@ extern int dry_run_mode;
extern int preprocess_only;
extern int debug_level;
extern char *config_file;
+extern char *slave_status_file;
extern char *tempdir;
extern char *compare_command;
+extern char *reload_command;
+extern unsigned changed_zones;
extern char *sql_config_file;
extern char *sql_config_group;
@@ -47,9 +51,14 @@ extern int sql_port;
extern char *named_conf_file;
extern struct grecs_list *bind_include_path;
+extern char *bind_zonefile_dir;
+extern char *zone_file_pattern;
extern struct grecs_list *synclist;
+extern unsigned error_count;
+extern unsigned changed_zones;
extern int debug_level;
#define debug(n,s) \
@@ -74,16 +83,19 @@ void sql_connect(void);
void sql_disconnect(void);
int sql_do_query(const char *query,
int (*fun)(MYSQL_ROW, unsigned, void*), void *data);
+int sql_get_slave_status(char **pfile, char **poff);
struct nssync {
char *tag;
- char *kwpath;
+ char *zone_conf_file;
+ struct grecs_node *zone_tree;
char *soa_query;
char *rr_query;
char *rev_rr_query;
char *ns_query;
- const char *file_name;
+ char *file_name;
char *temp_file_name;
FILE *fp;
@@ -91,7 +103,9 @@ struct nssync {
void format_zones(struct nssync *);
void source_named_conf(void);
-const char *bindcf_lookup(struct nssync *sp);
+char *bindcf_lookup(struct nssync *sp, const char *zone);
+void flush_zone_list(struct nssync *sp);
+int compare(const char *oldfile, const char *newfile);
diff --git a/src/output.c b/src/output.c
index a697fe7..a684201 100644
--- a/src/output.c
+++ b/src/output.c
@@ -61,7 +61,8 @@ format_rr_record(MYSQL_ROW row, unsigned nf, void *data)
if (strcasecmp(row[f_rr_type], "MX") == 0)
fprintf(sp->fp, "%s\t%s\tMX\t%s\t%s\n",
row[f_rr_host], S(row[f_rr_ttl]),
- row[f_rr_priority], row[f_rr_data]);
+ row[f_rr_priority] ? row[f_rr_priority] : "1",
+ row[f_rr_data]);
fprintf(sp->fp, "%s\t%s\t%s\t%s\n",
row[f_rr_host], S(row[f_rr_ttl]),
@@ -107,11 +108,24 @@ format_soa_record(MYSQL_ROW row, unsigned nf, void *data)
if (!row[f_soa_type])
return 0;
- fprintf(sp->fp, "$ORIGIN .\n");
+ grecs_free(sp->file_name);
+ sp->file_name = bindcf_lookup(sp, row[f_soa_zone]);
+ if (!sp->file_name)
+ return 0;
+ debug(2, ("%s: zone %s, file %s", sp->tag, row[f_soa_zone],
+ sp->file_name));
+ fflush(sp->fp);
+ fseek(sp->fp, 0, SEEK_SET);
+ ftruncate(fileno(sp->fp), 0);
+ fprintf(sp->fp, "; Zone file generated by %s\n", PACKAGE_STRING);
+ fprintf(sp->fp, "; Do not edit! See %s for details\n", config_file);
if (row[f_soa_ttl])
fprintf(sp->fp, "$TTL %s\n", row[f_soa_ttl]);
- "%s %s IN SOA %s %s (\n"
+ "%s. %s IN SOA %s %s (\n"
"\t%s ; Serial\n"
"\t%s ; Refresh\n"
"\t%s ; Retry\n"
@@ -157,7 +171,16 @@ format_soa_record(MYSQL_ROW row, unsigned nf, void *data)
+ fflush(sp->fp);
+ if (compare(sp->temp_file_name, sp->file_name)) {
+ debug(1,("copying %s to %s", sp->temp_file_name,
+ sp->file_name));
+ if (copy_file(sp->temp_file_name, sp->fp, sp->file_name))
+ error_count++;
+ }
return 0;
diff --git a/src/sqlop.c b/src/sqlop.c
index eb3f543..db53c45 100644
--- a/src/sqlop.c
+++ b/src/sqlop.c
@@ -91,4 +91,32 @@ sql_do_query(const char *query,
return 0;
+struct slave_status_info
+ char *file;
+ char *off;
+static int
+read_slave_status(MYSQL_ROW row, unsigned nf, void *closure)
+ struct slave_status_info *ssi = closure;
+ ssi->file = grecs_strdup(row[5]);
+ ssi->off = grecs_strdup(row[6]);
+ return 1;
+sql_get_slave_status(char **pfile, char **poff)
+ struct slave_status_info ssi = { NULL, NULL };
+ if (sql_do_query("SHOW SLAVE STATUS", read_slave_status, &ssi))
+ return 1;
+ *pfile = ssi.file;
+ *poff =;
+ return 0;

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