X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/0d13bfcd3dc0eac74361d98a550092ffa054e918..e436e0602b66c82acf0741ced8f9a19bd2060e70:/logging.c?ds=sidebyside

diff --git a/logging.c b/logging.c
index db02892a..49269ec3 100644
--- a/logging.c
+++ b/logging.c
@@ -43,7 +43,10 @@ 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;
+	}
     }				       /* else L_ERROR, so ignore the write */
 }
 
@@ -85,7 +88,7 @@ static void logfopen_callback(void *handle, int mode)
 	ctx->state = L_ERROR;	       /* disable logging */
     } else {
 	fmode = (mode == 1 ? "ab" : "wb");
-	ctx->lgfp = f_open(ctx->currlogfilename, fmode, TRUE);
+	ctx->lgfp = f_open(ctx->currlogfilename, fmode, FALSE);
 	if (ctx->lgfp)
 	    ctx->state = L_OPEN;
 	else
@@ -384,7 +387,7 @@ static void xlatlognam(Filename *dest, Filename src,
 	    char c;
 	    s++;
 	    size = 0;
-	    if (*s) switch (c = *s++, tolower(c)) {
+	    if (*s) switch (c = *s++, tolower((unsigned char)c)) {
 	      case 'y':
 		size = strftime(buf, sizeof(buf), "%Y", tm);
 		break;