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tcx: tcx_screen_dump(): add error handling 

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Luiz Capitulino 2012-05-24 11:33:25 -03:00
parent 537f2d2b0d
commit 0ab6b63655
1 changed files with 29 additions and 6 deletions
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35
hw/tcx.c
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@ -582,26 +582,49 @@ static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
TCXState *s = opaque; TCXState *s = opaque;
FILE *f; FILE *f;
uint8_t *d, *d1, v; uint8_t *d, *d1, v;
int y, x; int ret, y, x;
f = fopen(filename, "wb"); f = fopen(filename, "wb");
if (!f) if (!f) {
error_setg(errp, "failed to open file '%s': %s", filename,
strerror(errno));
return; 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; d1 = s->vram;
for(y = 0; y < s->height; y++) { for(y = 0; y < s->height; y++) {
d = d1; d = d1;
for(x = 0; x < s->width; x++) { for(x = 0; x < s->width; x++) {
v = *d; v = *d;
fputc(s->r[v], f); ret = fputc(s->r[v], f);
fputc(s->g[v], f); if (ret == EOF) {
fputc(s->b[v], f); 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++; d++;
} }
d1 += MAXX; d1 += MAXX;
} }
out:
fclose(f); fclose(f);
return; 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, static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,