From 0ab6b63655ba59d7c05089017acb721a44979526 Mon Sep 17 00:00:00 2001 From: Luiz Capitulino Date: Thu, 24 May 2012 11:33:25 -0300 Subject: [PATCH] tcx: tcx_screen_dump(): add error handling Signed-off-by: Luiz Capitulino --- hw/tcx.c | 35 +++++++++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 6 deletions(-) diff --git a/hw/tcx.c b/hw/tcx.c index 428649e665..93994d6440 100644 --- a/hw/tcx.c +++ b/hw/tcx.c @@ -582,26 +582,49 @@ static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch, TCXState *s = opaque; FILE *f; uint8_t *d, *d1, v; - int y, x; + int ret, y, x; f = fopen(filename, "wb"); - if (!f) + if (!f) { + error_setg(errp, "failed to open file '%s': %s", filename, + strerror(errno)); return; - fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255); + } + ret = fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255); + if (ret < 0) { + goto write_err; + } d1 = s->vram; for(y = 0; y < s->height; y++) { d = d1; for(x = 0; x < s->width; x++) { v = *d; - fputc(s->r[v], f); - fputc(s->g[v], f); - fputc(s->b[v], f); + ret = fputc(s->r[v], f); + if (ret == EOF) { + goto write_err; + } + ret = fputc(s->g[v], f); + if (ret == EOF) { + goto write_err; + } + ret = fputc(s->b[v], f); + if (ret == EOF) { + goto write_err; + } d++; } d1 += MAXX; } + +out: fclose(f); return; + +write_err: + error_setg(errp, "failed to write to file '%s': %s", filename, + strerror(errno)); + unlink(filename); + goto out; } static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch, -- 2.11.4.GIT