From f7692dd84c22bcf8bf5f3806b986c586df7798c5 Mon Sep 17 00:00:00 2001 From: simon Date: Tue, 4 Nov 2008 23:02:07 +0000 Subject: [PATCH] Check return values from fwrite when saving files. git-svn-id: svn://svn.tartarus.org/sgt/puzzles@8278 cda61777-01e9-0310-a592-d414129be87e --- gtk.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/gtk.c b/gtk.c index fc99f92..29b215e 100644 --- a/gtk.c +++ b/gtk.c @@ -1328,10 +1328,16 @@ static char *file_selector(frontend *fe, char *title, int save) return fe->filesel_name; } +struct savefile_write_ctx { + FILE *fp; + int error; +}; + static void savefile_write(void *wctx, void *buf, int len) { - FILE *fp = (FILE *)wctx; - fwrite(buf, 1, len, fp); + struct savefile_write_ctx *ctx = (struct savefile_write_ctx *)wctx; + if (fwrite(buf, 1, len, ctx->fp) < len) + ctx->error = 1; } static int savefile_read(void *wctx, void *buf, int len) @@ -1373,9 +1379,18 @@ static void menu_save_event(GtkMenuItem *menuitem, gpointer data) return; } - midend_serialise(fe->me, savefile_write, fp); + { + struct savefile_write_ctx ctx; + ctx.fp = fp; + ctx.error = 0; + midend_serialise(fe->me, savefile_write, &ctx); + fclose(fp); + if (ctx.error) { + error_box(fe->window, "Error writing save file"); + return; + } + } - fclose(fp); } } -- 2.11.0