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log: add ssh_vlog to save the stack space

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and add LOG_SIZE macro to control the buffer size

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Change-Id: I3eaeea001fc531fdb55074fc3a9d140b27847c1f
This commit is contained in:
Xiang Xiao
2021-05-10 19:27:31 +08:00
committed by Jakub Jelen
parent 672c1f8a3a
commit 14276f0b51
4 changed files with 39 additions and 20 deletions
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6
include/libssh/libssh.h
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@@ -49,6 +49,8 @@
#endif
#endif
#include <stdarg.h>
#ifdef _MSC_VER
/* Visual Studio hasn't inttypes.h so it doesn't know uint32_t */
typedef int int32_t;
@@ -587,6 +589,10 @@ LIBSSH_API int ssh_set_log_level(int level);
LIBSSH_API int ssh_get_log_level(void);
LIBSSH_API void *ssh_get_log_userdata(void);
LIBSSH_API int ssh_set_log_userdata(void *data);
LIBSSH_API void ssh_vlog(int verbosity,
const char *function,
const char *format,
va_list *va) PRINTF_ATTRIBUTE(3, 0);
LIBSSH_API void _ssh_log(int verbosity,
const char *function,
const char *format, ...) PRINTF_ATTRIBUTE(3, 4);

4
include/libssh/libsshpp.hpp
View File

@@ -369,13 +369,11 @@ public:
return state;
}
void log(int priority, const char *format, ...){
char buffer[1024];
va_list va;
va_start(va, format);
vsnprintf(buffer, sizeof(buffer), format, va);
ssh_vlog(priority, "libsshpp", format, &va);
va_end(va);
_ssh_log(priority, "libsshpp", "%s", buffer);
}
/** @brief copies options from a session to another