[Rpm-maint] [rpm-software-management/rpm] Stop blocking when GPG process dies prematurely (RhBug:1746353) (#938)

[Michal Domonkos]

dmnks commented on this pull request.



> @@ -276,7 +282,26 @@ static int runGPG(sigTarget sigt, const char *sigfile)
     rpmPopMacro(NULL, "__plaintext_filename");
     rpmPopMacro(NULL, "__signature_filename");
 
+    /* The child GPG process may terminate without ever opening the pipe (such
+     * as when the key is expired), causing our parent process to get forever
+     * stuck on the Fopen() call below (see fifo(7) for details).  To fix that,
+     * we need to let the underlying open(2) unblock when SIGCHLD is received,
+     * by registering a no-op handler, so here we go: */
+    struct sigaction act;
+    memset(&act, '\0', sizeof(act));

Oh OK, thanks for pointing this out, I'll fix this.

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