termux-packages/ndk_patches/syslog.patch

diff -Nur /Users/fornwall/lib/android-ndk/platforms/android-18/arch-arm/usr/include/syslog.h ./usr/include/syslog.h
--- /Users/fornwall/lib/android-ndk/platforms/android-18/arch-arm/usr/include/syslog.h	2012-08-21 07:23:12.000000000 +0200
+++ ./usr/include/syslog.h	2014-01-29 17:51:55.000000000 +0100
@@ -31,6 +31,8 @@
 #include <stdio.h>
 #include <sys/cdefs.h>
 #include <stdarg.h>
+#include <android/log.h> /* for __android_log_vprint() */
+#include <unistd.h> /* for getpid() */
 
 __BEGIN_DECLS
 
@@ -111,6 +112,65 @@
 extern void	syslog_r(int, struct syslog_data *, const char *, ...);
 extern void	vsyslog_r(int, struct syslog_data *, const char *, va_list);
 
+extern /*const*/ char* __progname;
+static __inline__ void android_polyfill_openlog(const char* a, int b, int c) {
+	(void) a;
+	(void) b;
+	(void) c;
+}
+static __inline__ void android_polyfill_closelog() {}
+
+static __inline__ void android_polyfill_vsyslog(int syslog_priority, char const* format, va_list ap)
+{
+	android_LogPriority a = ANDROID_LOG_FATAL;
+	switch (syslog_priority) {
+		case LOG_INFO		: a = ANDROID_LOG_SILENT	; break;
+		case LOG_EMERG		: a = ANDROID_LOG_FATAL		; break;
+		case LOG_ERR		: a = ANDROID_LOG_ERROR		; break;
+		case LOG_WARNING	: a = ANDROID_LOG_WARN		; break;
+		case LOG_DEBUG	: a = ANDROID_LOG_VERBOSE	; break;
+	}
+	char* syslog_text;
+	if (vasprintf(&syslog_text, format, ap) == -1) {
+       	__android_log_vprint(a, "syslog", format, ap);
+		return;
+	}
+	__android_log_print(a, "syslog", "%s - %s", __progname, syslog_text);
+	free(syslog_text);
+}
+
+static __inline__ void android_polyfill_syslog(int priority, const char* format, ...)
+{
+	va_list myargs;
+	va_start(myargs, format);
+	android_polyfill_vsyslog(priority, format, myargs);
+	va_end(myargs);
+}
+
+static __inline__ void android_polyfill_syslog_r(int syslog_priority, void* d, const char* format, ...)
+{
+	(void) d;
+	va_list myargs;
+	va_start(myargs, format);
+	android_polyfill_vsyslog(syslog_priority, format, myargs);
+	va_end(myargs);
+}
+
+static __inline__ void android_polyfill_vsyslog_r(int syslog_priority, void* d, const char* fmt, va_list ap)
+{
+	(void) d;
+	android_polyfill_vsyslog(syslog_priority, fmt, ap);
+}
+
+#define openlog android_polyfill_openlog
+#define closelog android_polyfill_closelog
+
+#define syslog android_polyfill_syslog
+#define syslog_r android_polyfill_syslog_r
+
+#define vsyslog android_polyfill_vsyslog
+#define vsyslog_r android_polyfill_vsyslog_r
+
 __END_DECLS
 
 #endif /* _SYSLOG_H */