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From 18df9e628ea10c7d607f43fcfd935e7924731f24 Mon Sep 17 00:00:00 2001
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From: Evan Hunt <each@isc.org>
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Date: Mon, 9 Sep 2013 22:12:47 -0700
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Subject: [PATCH] [master] strdup journal filename
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3646. [bug] Journal filename string could be set incorrectly,
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causing garbage in log messages. [RT #34738]
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---
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lib/dns/journal.c | 12 +++++++++---
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1 file changed, 9 insertions(+), 3 deletions(-)
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diff --git a/lib/dns/journal.c b/lib/dns/journal.c
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index 08aabd5..46a52e1 100644
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--- a/lib/dns/journal.c
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+++ b/lib/dns/journal.c
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@@ -307,7 +307,7 @@ struct dns_journal {
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unsigned int magic; /*%< JOUR */
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isc_mem_t *mctx; /*%< Memory context */
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journal_state_t state;
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- const char *filename; /*%< Journal file name */
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+ char *filename; /*%< Journal file name */
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FILE * fp; /*%< File handle */
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isc_offset_t offset; /*%< Current file offset */
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journal_header_t header; /*%< In-core journal header */
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@@ -573,10 +573,13 @@ journal_open(isc_mem_t *mctx, const char *filename, isc_boolean_t write,
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isc_mem_attach(mctx, &j->mctx);
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j->state = JOURNAL_STATE_INVALID;
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j->fp = NULL;
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- j->filename = filename;
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+ j->filename = isc_mem_strdup(mctx, filename);
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j->index = NULL;
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j->rawindex = NULL;
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+ if (j->filename == NULL)
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+ FAIL(ISC_R_NOMEMORY);
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+
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result = isc_stdio_open(j->filename, write ? "rb+" : "rb", &fp);
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if (result == ISC_R_FILENOTFOUND) {
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@@ -679,6 +682,8 @@ journal_open(isc_mem_t *mctx, const char *filename, isc_boolean_t write,
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sizeof(journal_rawpos_t));
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j->index = NULL;
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}
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+ if (j->filename != NULL)
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+ isc_mem_free(j->mctx, j->filename);
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if (j->fp != NULL)
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(void)isc_stdio_close(j->fp);
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isc_mem_putanddetach(&j->mctx, j, sizeof(*j));
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@@ -1242,7 +1247,8 @@ dns_journal_destroy(dns_journal_t **journalp) {
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isc_mem_put(j->mctx, j->it.target.base, j->it.target.length);
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if (j->it.source.base != NULL)
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isc_mem_put(j->mctx, j->it.source.base, j->it.source.length);
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-
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+ if (j->filename != NULL)
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+ isc_mem_free(j->mctx, j->filename);
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if (j->fp != NULL)
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(void)isc_stdio_close(j->fp);
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j->magic = 0;
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--
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1.8.3.1
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