[PATCH] util: Try finding out application name using dladdr if available

[fsateler@xxxxxxxxxx (Felipe Sateler)]

---
 configure.ac     |  2 ++
 src/pulse/util.c | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/configure.ac b/configure.ac
index 837e81e..2b011fb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -580,6 +580,8 @@ AC_SYS_LARGEFILE
 # Check for open64 to know if the current system does have open64() and similar functions
 AC_CHECK_FUNCS_ONCE([open64])
 
+AC_SEARCH_LIBS([dladdr], [dl], [HAVE_DLADDR=1], [HAVE_DLADDR=0])
+AC_DEFINE(HAVE_DLADDR, [1], [Have dladdr?])
 
 ###################################
 #      External libraries         #
diff --git a/src/pulse/util.c b/src/pulse/util.c
index ace698c..67e23dc 100644
--- a/src/pulse/util.c
+++ b/src/pulse/util.c
@@ -32,6 +32,7 @@
 #include <time.h>
 #include <unistd.h>
 #include <sys/types.h>
+#include <dlfcn.h>
 
 #ifdef HAVE_PWD_H
 #include <pwd.h>
@@ -64,6 +65,10 @@
 
 #include "util.h"
 
+#ifdef HAVE_DLADDR
+extern int main(int, char*[]);
+#endif
+
 char *pa_get_user_name(char *s, size_t l) {
     const char *p;
     char *name = NULL;
@@ -218,6 +223,19 @@ char *pa_get_binary_name(char *s, size_t l) {
     }
 #endif
 
+#ifdef HAVE_DLADDR
+    {
+        Dl_info DLInfo;
+        int err = dladdr(&main, &DLInfo);
+        if (err != 0) {
+            char *p = pa_realpath(DLInfo.dli_fname);
+            if (p) {
+                return p;
+            }
+        }
+    }
+#endif
+
 #if defined(HAVE_SYS_PRCTL_H) && defined(PR_GET_NAME)
     {
 
-- 
2.1.0.rc1