From ca98c544ab7a26bfc840d1470f467a7dea06238c Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 29 Oct 2007 15:31:24 +0000
Subject: add new pa_readlink() API

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1974 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulsecore/core-util.c | 24 ++++++++++++++++++++++++
 src/pulsecore/core-util.h |  2 ++
 2 files changed, 26 insertions(+)

diff --git a/src/pulsecore/core-util.c b/src/pulsecore/core-util.c
index a644b664..4962112b 100644
--- a/src/pulsecore/core-util.c
+++ b/src/pulsecore/core-util.c
@@ -1507,3 +1507,27 @@ void pa_close_pipe(int fds[2]) {
 
     fds[0] = fds[1] = -1;
 }
+
+char *pa_readlink(const char *p) {
+    size_t l = 100;
+
+    for (;;) {
+        char *c;
+        ssize_t n;
+
+        c = pa_xnew(char, l);
+
+        if ((n = readlink(p, c, l-1)) < 0) {
+            pa_xfree(c);
+            return NULL;
+        }
+
+        if (n < l-1) {
+            c[l-1] = 0;
+            return c;
+        }
+
+        pa_xfree(c);
+        l *= 2;
+    }
+}
diff --git a/src/pulsecore/core-util.h b/src/pulsecore/core-util.h
index 0fe865ec..d26cf241 100644
--- a/src/pulsecore/core-util.h
+++ b/src/pulsecore/core-util.h
@@ -122,4 +122,6 @@ static inline unsigned pa_make_power_of_two(unsigned n) {
 
 void pa_close_pipe(int fds[2]);
 
+char *pa_readlink(const char *p);
+
 #endif
-- 
cgit