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-rw-r--r--lib/libalpm/log.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/libalpm/log.c b/lib/libalpm/log.c
index b59ec64e..1be7f0db 100644
--- a/lib/libalpm/log.c
+++ b/lib/libalpm/log.c
@@ -27,8 +27,50 @@
/* libalpm */
#include "log.h"
+#include "handle.h"
+#include "util.h"
+#include "error.h"
#include "alpm.h"
+/** \addtogroup alpm_log Logging Functions
+ * @brief Functions to log using libalpm
+ * @{
+ */
+
+/** A printf-like function for logging.
+ * @param fmt output format
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_logaction(char *fmt, ...)
+{
+ char str[LOG_STR_LEN];
+ va_list args;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+
+ va_start(args, fmt);
+ vsnprintf(str, LOG_STR_LEN, fmt, args);
+ va_end(args);
+
+ /* TODO We should add a prefix to log strings depending on who called us.
+ * If logaction was called by the frontend:
+ * USER: <the frontend log>
+ * and if called internally:
+ * ALPM: <the library log>
+ * Moreover, the frontend should be able to choose its prefix
+ * (USER by default?):
+ * pacman: "PACMAN"
+ * kpacman: "KPACMAN"
+ * This would allow us to share the log file between several frontends
+ * and know who does what */
+ return(_alpm_logaction(handle->usesyslog, handle->logfd, str));
+}
+
+/** @} */
+
void _alpm_log(pmloglevel_t flag, char *fmt, ...)
{
alpm_cb_log logcb = alpm_option_get_logcb();