Add libc errno translation layer to UST error code

[lttng-ust.git] / liblttng-ust / lttng-ust-comm.c

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index f11b7d0142a3b210fa6bfd2ce2c606bba83f93ed..92d0fd70da205ecad68d9da6a963d94eda728422 100644 (file)
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -376,10 +376,31 @@ end:
                 * we already have a more precise error message to
                 * report.
                 */
-               if (ret > -LTTNG_UST_ERR)
-                       lur.ret_code = -LTTNG_UST_ERR;
-               else
+               if (ret > -LTTNG_UST_ERR) {
+                       /* Translate code to UST error. */
+                       switch (ret) {
+                       case -EEXIST:
+                               lur.ret_code = -LTTNG_UST_ERR_EXIST;
+                               break;
+                       case -EINVAL:
+                               lur.ret_code = -LTTNG_UST_ERR_INVAL;
+                               break;
+                       case -ENOENT:
+                               lur.ret_code = -LTTNG_UST_ERR_NOENT;
+                               break;
+                       case -EPERM:
+                               lur.ret_code = -LTTNG_UST_ERR_PERM;
+                               break;
+                       case -ENOSYS:
+                               lur.ret_code = -LTTNG_UST_ERR_NOSYS;
+                               break;
+                       default:
+                               lur.ret_code = -LTTNG_UST_ERR;
+                               break;
+                       }
+               } else {
                        lur.ret_code = ret;
+               }
        }
        if (ret >= 0) {
                switch (lum->cmd) {