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pcuif: Log errno str if recv() fails

Change-Id: Iec5233cfef5301c4bae7d69984e3138d66b6b46d
---
M src/pcuif_sock.c
1 file changed, 3 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-pcu refs/changes/64/41664/1

diff --git a/src/pcuif_sock.c b/src/pcuif_sock.c
index 15b65ab..08eba23 100644
--- a/src/pcuif_sock.c
+++ b/src/pcuif_sock.c
@@ -120,7 +120,9 @@
 	if (rc < 0 && errno == EAGAIN)
 		return 0; /* Try again later */
 	if (rc <= 0) {
-		LOGP(DL1IF, LOGL_ERROR, "%s: recv() failed with rc=%d errno=%d\n", __func__, rc, errno);
+		char errbuf[256];
+		strerror_r(errno, errbuf, sizeof(errbuf));
+		LOGP(DL1IF, LOGL_ERROR, "%s: recv() failed with rc=%d errno=%d (%s)\n", __func__, rc, errno, errbuf);
 		pcu_sock_close(1);
 		return -EIO;
 	}

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