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From 7cc5bcfcb2340266a6b42370c9c4c02d8a325d5f Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Thu, 21 Oct 2021 18:47:40 +0200
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Subject: [PATCH 67/74] logger: fix --size use for stdin
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The stdin version counts log header into the message size, but
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for example when it reads message from argv[] it counts only message
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itself.
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$ logger --stderr --size 3 "abcd"
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<13>Oct 21 18:48:29 kzak: abc
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$ echo "abcd" | logger --stderr --size 3
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logger: cannot allocate 18446744073709551597 bytes: Cannot allocate memory
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2011602
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Upstream: http://github.com/util-linux/util-linux/commit/58e4ee082bca100034791a4a74481f263bb30a25
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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misc-utils/logger.c | 16 ++++------------
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1 file changed, 4 insertions(+), 12 deletions(-)
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diff --git a/misc-utils/logger.c b/misc-utils/logger.c
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index ebdc56ec2..c20ef05f1 100644
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--- a/misc-utils/logger.c
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+++ b/misc-utils/logger.c
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@@ -957,11 +957,9 @@ static void logger_stdin(struct logger_ctl *ctl)
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* update header timestamps and to reflect possible priority changes.
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* The initial header is generated by logger_open().
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*/
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- int has_header = 1;
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int default_priority = ctl->pri;
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int last_pri = default_priority;
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- size_t max_usrmsg_size = ctl->max_message_size - strlen(ctl->hdr);
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- char *const buf = xmalloc(max_usrmsg_size + 2 + 2);
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+ char *buf = xmalloc(ctl->max_message_size + 2 + 2);
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int pri;
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int c;
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size_t i;
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@@ -988,27 +986,21 @@ static void logger_stdin(struct logger_ctl *ctl)
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ctl->pri = default_priority;
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if (ctl->pri != last_pri) {
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- has_header = 0;
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- max_usrmsg_size =
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- ctl->max_message_size - strlen(ctl->hdr);
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+ generate_syslog_header(ctl);
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last_pri = ctl->pri;
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}
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if (c != EOF && c != '\n')
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c = getchar();
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}
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- while (c != EOF && c != '\n' && i < max_usrmsg_size) {
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+ while (c != EOF && c != '\n' && i < ctl->max_message_size) {
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buf[i++] = c;
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c = getchar();
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}
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buf[i] = '\0';
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- if (i > 0 || !ctl->skip_empty_lines) {
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- if (!has_header)
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- generate_syslog_header(ctl);
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+ if (i > 0 || !ctl->skip_empty_lines)
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write_output(ctl, buf);
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- has_header = 0;
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- }
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if (c == '\n') /* discard line terminator */
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c = getchar();
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--
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2.31.1
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