X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/b078de41dfbae96dfb831e6e06df047b669adc4c..5aca142a0fb7d39f0c905c4e422ab4bf51a0f88e:/logging.c

diff --git a/logging.c b/logging.c
index f1e37295..7c9b1287 100644
--- a/logging.c
+++ b/logging.c
@@ -43,7 +43,13 @@ static void logwrite(struct LogContext *ctx, void *data, int len)
 	bufchain_add(&ctx->queue, data, len);
     } else if (ctx->state == L_OPEN) {
 	assert(ctx->lgfp);
-	fwrite(data, 1, len, ctx->lgfp);
+	if (fwrite(data, 1, len, ctx->lgfp) < len) {
+	    logfclose(ctx);
+	    ctx->state = L_ERROR;
+	    /* Log state is L_ERROR so this won't cause a loop */
+	    logevent(ctx->frontend,
+		     "Disabled writing session log due to error while writing");
+	}
     }				       /* else L_ERROR, so ignore the write */
 }
 
@@ -101,8 +107,9 @@ static void logfopen_callback(void *handle, int mode)
     }
 
     event = dupprintf("%s session log (%s mode) to file: %s",
-		      (mode == 0 ? "Disabled writing" :
-                       mode == 1 ? "Appending" : "Writing new"),
+		      ctx->state == L_ERROR ?
+		      (mode == 0 ? "Disabled writing" : "Error writing") :
+		      (mode == 1 ? "Appending" : "Writing new"),
 		      (ctx->cfg.logtype == LGTYP_ASCII ? "ASCII" :
 		       ctx->cfg.logtype == LGTYP_DEBUG ? "raw" :
 		       ctx->cfg.logtype == LGTYP_PACKETS ? "SSH packets" :