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virsh: fix regression in log to file

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Commit 36deff04 introduced a regression due to which virsh is not able
to log to a file - msg_buf was changed from an array to a pointer
without corresponding change to usage of "sizeof()".

Fix regression in virsh logging

Signed-off-by: Supriya Kannery <supriyak@in.ibm.com>
This commit is contained in:
Supriya Kannery 2011-04-30 16:26:14 +05:30 committed by Eric Blake
parent 0e7c7b8b32
commit 0431551435
2 changed files with 8 additions and 6 deletions
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1
AUTHORS
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@ -169,6 +169,7 @@ Patches have also been contributed by:
Richard Laager <rlaager@wiktel.com>
Mark Wu <dwu@redhat.com>
Yufang Zhang <yuzhang@redhat.com>
Supriya Kannery <supriyak@in.ibm.com>
[....send patches to get your name here....]

13
tools/virsh.c
View File

@ -12227,7 +12227,8 @@ vshOpenLogFile(vshControl *ctl)
* Outputting an error to log file.
*/
static void
vshOutputLogFile(vshControl *ctl, int log_level, const char *msg_format, va_list ap)
vshOutputLogFile(vshControl *ctl, int log_level, const char *msg_format,
va_list ap)
{
char *msg_buf;
const char *lvl = "";
@ -12246,7 +12247,7 @@ vshOutputLogFile(vshControl *ctl, int log_level, const char *msg_format, va_list
*/
gettimeofday(&stTimeval, NULL);
stTm = localtime(&stTimeval.tv_sec);
snprintf(msg_buf, sizeof(msg_buf),
snprintf(msg_buf, MSG_BUFFER,
"[%d.%02d.%02d %02d:%02d:%02d ",
(1900 + stTm->tm_year),
(1 + stTm->tm_mon),
@ -12254,7 +12255,7 @@ vshOutputLogFile(vshControl *ctl, int log_level, const char *msg_format, va_list
(stTm->tm_hour),
(stTm->tm_min),
(stTm->tm_sec));
snprintf(msg_buf + strlen(msg_buf), sizeof(msg_buf) - strlen(msg_buf),
snprintf(msg_buf + strlen(msg_buf), MSG_BUFFER - strlen(msg_buf),
"%s] ", SIGN_NAME);
switch (log_level) {
case VSH_ERR_DEBUG:
@ -12276,13 +12277,13 @@ vshOutputLogFile(vshControl *ctl, int log_level, const char *msg_format, va_list
lvl = LVL_DEBUG;
break;
}
snprintf(msg_buf + strlen(msg_buf), sizeof(msg_buf) - strlen(msg_buf),
snprintf(msg_buf + strlen(msg_buf), MSG_BUFFER - strlen(msg_buf),
"%s ", lvl);
vsnprintf(msg_buf + strlen(msg_buf), sizeof(msg_buf) - strlen(msg_buf),
vsnprintf(msg_buf + strlen(msg_buf), MSG_BUFFER - strlen(msg_buf),
msg_format, ap);
if (msg_buf[strlen(msg_buf) - 1] != '\n')
snprintf(msg_buf + strlen(msg_buf), sizeof(msg_buf) - strlen(msg_buf), "\n");
snprintf(msg_buf + strlen(msg_buf), MSG_BUFFER - strlen(msg_buf), "\n");
/* write log */
if (safewrite(ctl->log_fd, msg_buf, strlen(msg_buf)) < 0) {