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hostapd: Set stdout line-buffered

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If hostapd will use stdout for debugging, set stdout to be line
buffered in case its output is redirected to a file. This allows
incremental output to be viewed immediately instead of at the file
buffering interval.

Signed-hostap: Paul Stewart <pstew@chromium.org>
This commit is contained in:
Paul Stewart 2014-12-04 14:23:35 -08:00 committed by Jouni Malinen
parent a642a52b17
commit de27bc7673
3 changed files with 12 additions and 0 deletions
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2
hostapd/main.c
View file

@ -638,6 +638,8 @@ int main(int argc, char *argv[])
if (log_file) if (log_file)
wpa_debug_open_file(log_file); wpa_debug_open_file(log_file);
else
wpa_debug_setup_stdout();
#ifdef CONFIG_DEBUG_LINUX_TRACING #ifdef CONFIG_DEBUG_LINUX_TRACING
if (enable_trace_dbg) { if (enable_trace_dbg) {
int tret = wpa_debug_open_linux_tracing(); int tret = wpa_debug_open_linux_tracing();

8
src/utils/wpa_debug.c
View file

@ -574,6 +574,14 @@ void wpa_debug_close_file(void)
#endif /* CONFIG_DEBUG_FILE */ #endif /* CONFIG_DEBUG_FILE */
} }
void wpa_debug_setup_stdout(void)
{
#ifndef _WIN32
setvbuf(stdout, NULL, _IOLBF, 0);
#endif /* _WIN32 */
}
#endif /* CONFIG_NO_STDOUT_DEBUG */ #endif /* CONFIG_NO_STDOUT_DEBUG */

2
src/utils/wpa_debug.h
View file

@ -34,6 +34,7 @@ enum {
#define wpa_hexdump_ascii_key(l,t,b,le) do { } while (0) #define wpa_hexdump_ascii_key(l,t,b,le) do { } while (0)
#define wpa_debug_open_file(p) do { } while (0) #define wpa_debug_open_file(p) do { } while (0)
#define wpa_debug_close_file() do { } while (0) #define wpa_debug_close_file() do { } while (0)
#define wpa_debug_setup_stdout() do { } while (0)
#define wpa_dbg(args...) do { } while (0) #define wpa_dbg(args...) do { } while (0)
static inline int wpa_debug_reopen_file(void) static inline int wpa_debug_reopen_file(void)
@ -46,6 +47,7 @@ static inline int wpa_debug_reopen_file(void)
int wpa_debug_open_file(const char *path); int wpa_debug_open_file(const char *path);
int wpa_debug_reopen_file(void); int wpa_debug_reopen_file(void);
void wpa_debug_close_file(void); void wpa_debug_close_file(void);
void wpa_debug_setup_stdout(void);
/** /**
* wpa_debug_printf_timestamp - Print timestamp for debug output * wpa_debug_printf_timestamp - Print timestamp for debug output