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Check return values from fwrite when saving files.

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[originally from svn r8278]
This commit is contained in:
Simon Tatham
2008-11-04 23:02:07 +00:00
parent f4bd45e7b9
commit 23fb0e7753
1 changed files with 19 additions and 4 deletions
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23
gtk.c
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@ -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);
}
}