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diff -uNr sysroot.orig/usr/include/syslog.h sysroot/usr/include/syslog.h
--- sysroot.orig/usr/include/syslog.h 2019-02-12 16:12:24.000000000 +0000
+++ sysroot/usr/include/syslog.h 2019-03-20 13:19:44.315965728 +0000
@@ -32,6 +32,8 @@
#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
@@ -92,6 +94,64 @@
void syslog(int __priority, const char* __fmt, ...) __printflike(2, 3);
void vsyslog(int __priority, const char* __fmt, va_list __args) __printflike(2, 0);
+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_ERROR;
+ switch (syslog_priority) {
+ case LOG_WARNING: a = ANDROID_LOG_WARN; break;
+ case LOG_NOTICE : a = ANDROID_LOG_INFO; break;
+ case LOG_INFO: a = ANDROID_LOG_INFO; break;
+ case LOG_DEBUG: a = ANDROID_LOG_DEBUG; 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 */