mirror of
https://passt.top/passt
synced 2024-12-22 13:45:32 +00:00
log: Drop newlines in the middle of the perror()-like messages
Calling vlogmsg() twice from logmsg_perror() results in this beauty: $ ./pasta -i foo Invalid interface name foo : No such device because the first part of the message, corresponding to the first call, doesn't end with a newline, and vlogmsg() adds it. Given that we can't easily append an argument (error description) to a variadic list, add a 'newline' parameter to all the functions that currently add a newline if missing, and disable that on the first call to vlogmsg() from logmsg_perror(). Not very pretty but I can't think of any solution that's less messy than this. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
parent
13295583f8
commit
1cd773081f
2
flow.c
2
flow.c
@ -279,7 +279,7 @@ void flow_log_(const struct flow_common *f, int pri, const char *fmt, ...)
|
||||
else
|
||||
type_or_state = FLOW_TYPE(f);
|
||||
|
||||
logmsg(pri, "Flow %u (%s): %s", flow_idx(f), type_or_state, msg);
|
||||
logmsg(true, pri, "Flow %u (%s): %s", flow_idx(f), type_or_state, msg);
|
||||
}
|
||||
|
||||
/**
|
||||
|
34
log.c
34
log.c
@ -46,7 +46,14 @@ int log_trace; /* --trace mode enabled */
|
||||
bool log_conf_parsed; /* Logging options already parsed */
|
||||
bool log_runtime; /* Daemonised, or ready in foreground */
|
||||
|
||||
void vlogmsg(int pri, const char *format, va_list ap)
|
||||
/**
|
||||
* vlogmsg() - Print or send messages to log or output files as configured
|
||||
* @newline: Append newline at the end of the message, if missing
|
||||
* @pri: Facility and level map, same as priority for vsyslog()
|
||||
* @format: Message
|
||||
* @ap: Variable argument list
|
||||
*/
|
||||
void vlogmsg(bool newline, int pri, const char *format, va_list ap)
|
||||
{
|
||||
bool debug_print = (log_mask & LOG_MASK(LOG_DEBUG)) && log_file == -1;
|
||||
struct timespec tp;
|
||||
@ -63,9 +70,9 @@ void vlogmsg(int pri, const char *format, va_list ap)
|
||||
|
||||
va_copy(ap2, ap); /* Don't clobber ap, we need it again */
|
||||
if (log_file != -1)
|
||||
logfile_write(pri, format, ap2);
|
||||
logfile_write(newline, pri, format, ap2);
|
||||
else if (!(log_mask & LOG_MASK(LOG_DEBUG)))
|
||||
passt_vsyslog(pri, format, ap2);
|
||||
passt_vsyslog(newline, pri, format, ap2);
|
||||
|
||||
va_end(ap2);
|
||||
}
|
||||
@ -73,22 +80,23 @@ void vlogmsg(int pri, const char *format, va_list ap)
|
||||
if (debug_print || !log_conf_parsed ||
|
||||
(!log_runtime && (log_mask & LOG_MASK(LOG_PRI(pri))))) {
|
||||
(void)vfprintf(stderr, format, ap);
|
||||
if (format[strlen(format)] != '\n')
|
||||
if (newline && format[strlen(format)] != '\n')
|
||||
fprintf(stderr, "\n");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* logmsg() - vlogmsg() wrapper for variable argument lists
|
||||
* @newline: Append newline at the end of the message, if missing
|
||||
* @pri: Facility and level map, same as priority for vsyslog()
|
||||
* @format: Message
|
||||
*/
|
||||
void logmsg(int pri, const char *format, ...)
|
||||
void logmsg(bool newline, int pri, const char *format, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, format);
|
||||
vlogmsg(pri, format, ap);
|
||||
vlogmsg(newline, pri, format, ap);
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
@ -103,10 +111,10 @@ void logmsg_perror(int pri, const char *format, ...)
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, format);
|
||||
vlogmsg(pri, format, ap);
|
||||
vlogmsg(false, pri, format, ap);
|
||||
va_end(ap);
|
||||
|
||||
logmsg(pri, ": %s", strerror(errno_copy));
|
||||
logmsg(true, pri, ": %s", strerror(errno_copy));
|
||||
}
|
||||
|
||||
/* Prefixes for log file messages, indexed by priority */
|
||||
@ -174,11 +182,12 @@ void __setlogmask(int mask)
|
||||
|
||||
/**
|
||||
* passt_vsyslog() - vsyslog() implementation not using heap memory
|
||||
* @newline: Append newline at the end of the message, if missing
|
||||
* @pri: Facility and level map, same as priority for vsyslog()
|
||||
* @format: Same as vsyslog() format
|
||||
* @ap: Same as vsyslog() ap
|
||||
*/
|
||||
void passt_vsyslog(int pri, const char *format, va_list ap)
|
||||
void passt_vsyslog(bool newline, int pri, const char *format, va_list ap)
|
||||
{
|
||||
char buf[BUFSIZ];
|
||||
int n;
|
||||
@ -188,7 +197,7 @@ void passt_vsyslog(int pri, const char *format, va_list ap)
|
||||
|
||||
n += vsnprintf(buf + n, BUFSIZ - n, format, ap);
|
||||
|
||||
if (format[strlen(format)] != '\n')
|
||||
if (newline && format[strlen(format)] != '\n')
|
||||
n += snprintf(buf + n, BUFSIZ - n, "\n");
|
||||
|
||||
if (log_sock >= 0 && send(log_sock, buf, n, 0) != n && !log_runtime)
|
||||
@ -360,11 +369,12 @@ static int logfile_rotate(int fd, const struct timespec *now)
|
||||
|
||||
/**
|
||||
* logfile_write() - Write entry to log file, trigger rotation if full
|
||||
* @newline: Append newline at the end of the message, if missing
|
||||
* @pri: Facility and level map, same as priority for vsyslog()
|
||||
* @format: Same as vsyslog() format
|
||||
* @ap: Same as vsyslog() ap
|
||||
*/
|
||||
void logfile_write(int pri, const char *format, va_list ap)
|
||||
void logfile_write(bool newline, int pri, const char *format, va_list ap)
|
||||
{
|
||||
struct timespec now;
|
||||
char buf[BUFSIZ];
|
||||
@ -380,7 +390,7 @@ void logfile_write(int pri, const char *format, va_list ap)
|
||||
|
||||
n += vsnprintf(buf + n, BUFSIZ - n, format, ap);
|
||||
|
||||
if (format[strlen(format)] != '\n')
|
||||
if (newline && format[strlen(format)] != '\n')
|
||||
n += snprintf(buf + n, BUFSIZ - n, "\n");
|
||||
|
||||
if ((log_written + n >= log_size) && logfile_rotate(log_file, &now))
|
||||
|
18
log.h
18
log.h
@ -13,16 +13,16 @@
|
||||
#define LOGFILE_CUT_RATIO 30 /* When full, cut ~30% size */
|
||||
#define LOGFILE_SIZE_MIN (5UL * MAX(BUFSIZ, PAGE_SIZE))
|
||||
|
||||
void vlogmsg(int pri, const char *format, va_list ap);
|
||||
void logmsg(int pri, const char *format, ...)
|
||||
__attribute__((format(printf, 2, 3)));
|
||||
void vlogmsg(bool newline, int pri, const char *format, va_list ap);
|
||||
void logmsg(bool newline, int pri, const char *format, ...)
|
||||
__attribute__((format(printf, 3, 4)));
|
||||
void logmsg_perror(int pri, const char *format, ...)
|
||||
__attribute__((format(printf, 2, 3)));
|
||||
|
||||
#define err(...) logmsg( LOG_ERR, __VA_ARGS__)
|
||||
#define warn(...) logmsg( LOG_WARNING, __VA_ARGS__)
|
||||
#define info(...) logmsg( LOG_INFO, __VA_ARGS__)
|
||||
#define debug(...) logmsg( LOG_DEBUG, __VA_ARGS__)
|
||||
#define err(...) logmsg(true, LOG_ERR, __VA_ARGS__)
|
||||
#define warn(...) logmsg(true, LOG_WARNING, __VA_ARGS__)
|
||||
#define info(...) logmsg(true, LOG_INFO, __VA_ARGS__)
|
||||
#define debug(...) logmsg(true, LOG_DEBUG, __VA_ARGS__)
|
||||
|
||||
#define err_perror(...) logmsg_perror( LOG_ERR, __VA_ARGS__)
|
||||
#define warn_perror(...) logmsg_perror( LOG_WARNING, __VA_ARGS__)
|
||||
@ -54,8 +54,8 @@ void trace_init(int enable);
|
||||
|
||||
void __openlog(const char *ident, int option, int facility);
|
||||
void logfile_init(const char *name, const char *path, size_t size);
|
||||
void passt_vsyslog(int pri, const char *format, va_list ap);
|
||||
void logfile_write(int pri, const char *format, va_list ap);
|
||||
void passt_vsyslog(bool newline, int pri, const char *format, va_list ap);
|
||||
void logfile_write(bool newline, int pri, const char *format, va_list ap);
|
||||
void __setlogmask(int mask);
|
||||
|
||||
#endif /* LOG_H */
|
||||
|
Loading…
Reference in New Issue
Block a user