diff --git a/CHANGES b/CHANGES index 28b0e29514820d71de2addb4c3f832b9387f6afc..4d766fb2f210d9099ff797a46fc0cf265daa9a7a 100644 --- a/CHANGES +++ b/CHANGES @@ -750,6 +750,10 @@ Changes between 0.9.7e and 0.9.7f [XX xxx XXXX] + *) Fix hang in EGD/PRNGD query when communication socket is closed + prematurely by EGD/PRNGD. + [Darren Tucker via Lutz Jänicke, resolves #1014] + *) Prompt for pass phrases when appropriate for PKCS12 input format. [Steve Henson] diff --git a/crypto/rand/rand_egd.c b/crypto/rand/rand_egd.c index e34f07c5e8307a8123ec646f77a167f0f85eebfa..50bce6cabae8a649bd45b456d9164fb0a678635f 100644 --- a/crypto/rand/rand_egd.c +++ b/crypto/rand/rand_egd.c @@ -216,7 +216,9 @@ int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes) while (numbytes != 1) { num = read(fd, egdbuf, 1); - if (num >= 0) + if (num == 0) + goto err; /* descriptor closed */ + else if (num > 0) numbytes += num; else { @@ -246,7 +248,9 @@ int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes) while (numbytes != egdbuf[0]) { num = read(fd, retrievebuf + numbytes, egdbuf[0] - numbytes); - if (num >= 0) + if (num == 0) + goto err; /* descriptor closed */ + else if (num > 0) numbytes += num; else {