output the signed data into a temp file, then rename at the end.

diff --git a/bin/dnssec/dnssec-signzone.c b/bin/dnssec/dnssec-signzone.c
index 95307b214065bb225ee650b055324c229d0e0370..9cdf04ebfff09777bdab2fcb3056c69d6b2ac441 100644 (file)
--- a/bin/dnssec/dnssec-signzone.c
+++ b/bin/dnssec/dnssec-signzone.c
@@ -17,7 +17,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: dnssec-signzone.c,v 1.134 2001/03/30 18:02:34 bwelling Exp $ */
+/* $Id: dnssec-signzone.c,v 1.135 2001/03/31 01:46:13 bwelling Exp $ */
 
 #include <config.h>
 
@@ -28,6 +28,7 @@
 #include <isc/commandline.h>
 #include <isc/entropy.h>
 #include <isc/event.h>
+#include <isc/file.h>
 #include <isc/mem.h>
 #include <isc/mutex.h>
 #include <isc/os.h>
@@ -42,7 +43,6 @@
 #include <dns/diff.h>
 #include <dns/dnssec.h>
 #include <dns/fixedname.h>
-#include <dns/journal.h>
 #include <dns/keyvalues.h>
 #include <dns/log.h>
 #include <dns/master.h>
@@ -1491,6 +1491,7 @@ main(int argc, char *argv[]) {
        int i, ch;
        char *startstr = NULL, *endstr = NULL, *classname = NULL;
        char *origin = NULL, *file = NULL, *output = NULL;
+       char *tempfile = NULL;
        char *randomfile = NULL;
        char *endp;
        isc_time_t timer_start, timer_finish;
@@ -1500,12 +1501,11 @@ main(int argc, char *argv[]) {
        isc_boolean_t pseudorandom = ISC_FALSE;
        unsigned int eflags;
        isc_boolean_t free_output = ISC_FALSE;
+       int tempfilelen;
        dns_rdataclass_t rdclass;
        isc_textregion_t r;
        isc_task_t **tasks = NULL;
 
-
-
        check_result(isc_app_start(), "isc_app_start");
 
        result = isc_mem_create(0, 0, &mctx);
@@ -1713,10 +1713,18 @@ main(int argc, char *argv[]) {
        result = dns_db_newversion(gdb, &gversion);
        check_result(result, "dns_db_newversion()");
 
+       tempfilelen = strlen(output) + 20;
+       tempfile = isc_mem_get(mctx, tempfilelen);
+       if (tempfile == NULL)
+               fatal("out of memory");
+
+       result = isc_file_mktemplate(output, tempfile, tempfilelen);
+       check_result(result, "isc_file_mktemplate");
+
        fp = NULL;
-       result = isc_stdio_open(output, "w", &fp);
+       result = isc_file_openunique(tempfile, &fp);
        if (result != ISC_R_SUCCESS)
-               fatal("failed to open output file %s: %s", output,
+               fatal("failed to open temporary output file: %s",
                      isc_result_totext(result));
        print_time(fp);
        print_version(fp);
@@ -1764,6 +1772,11 @@ main(int argc, char *argv[]) {
        result = isc_stdio_close(fp);
        check_result(result, "isc_stdio_close");
 
+       result = isc_file_rename(tempfile, output);
+       if (result != ISC_R_SUCCESS)
+               fatal("failed to rename temp file to %s: %s\n",
+                     output, isc_result_totext(result));
+
        DESTROYLOCK(&namelock);
        if (printstats)
                DESTROYLOCK(&statslock);
@@ -1781,6 +1794,8 @@ main(int argc, char *argv[]) {
                isc_mem_put(mctx, key, sizeof(signer_key_t));
        }
 
+       isc_mem_put(mctx, tempfile, tempfilelen);
+
        if (free_output)
                isc_mem_free(mctx, output);