Tweak error handling when writing babel-state, use fsync.

85a65036 · Juliusz Chroboczek · 56434b63 · 85a65036
Commit 85a65036 authored Aug 25, 2007 by Juliusz Chroboczek
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Showing with 9 additions and 3 deletions

babel.c babel.c +9 -3

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--- a/babel.c
+++ b/babel.c
@@ -566,10 +566,16 @@ main(int argc, char **argv)
        char buf[100];
        rc = snprintf(buf, 100, "%s %d %ld\n",
                      format_address(myid), (int)myseqno, (long)now.tv_sec);
-        rc = write(fd, buf, rc);
+        if(rc < 0 || rc >= 100) {
-        if(rc < 0) {
+            fprintf(stderr, "write(babel-state): overflow.\n");
-            perror("write(babel-state)");
            unlink(state_file);
+        } else {
+            rc = write(fd, buf, rc);
+            if(rc < 0) {
+                perror("write(babel-state)");
+                unlink(state_file);
+            }
+            fsync(fd);
        }
        close(fd);
    }