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Prefer snprintf to sprintf in image.c

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* src/image.c (image_background, image_build_heuristic_mask)
(png_load_body): Prefer snprintf to sprintf.
This commit is contained in:
Stefan Kangas 2025-01-22 00:47:02 +01:00
parent 5f108cb663
commit cdcfffd50a
1 changed files with 8 additions and 7 deletions
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15
src/image.c
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@ -1995,10 +1995,10 @@ image_background (struct image *img, struct frame *f, Emacs_Pix_Context pimg)
#ifdef USE_CAIRO
{
char color_name[30];
sprintf (color_name, "#%04x%04x%04x",
(unsigned int) RED16_FROM_ULONG (bg),
(unsigned int) GREEN16_FROM_ULONG (bg),
(unsigned int) BLUE16_FROM_ULONG (bg));
snprintf (color_name, sizeof color_name, "#%04x%04x%04x",
(unsigned int) RED16_FROM_ULONG (bg),
(unsigned int) GREEN16_FROM_ULONG (bg),
(unsigned int) BLUE16_FROM_ULONG (bg));
bg = image_alloc_image_color (f, img, build_string (color_name), 0);
}
#endif
@ -7386,8 +7386,8 @@ image_build_heuristic_mask (struct frame *f, struct image *img,
{
#ifndef USE_CAIRO
char color_name[30];
sprintf (color_name, "#%04x%04x%04x",
rgb[0] + 0u, rgb[1] + 0u, rgb[2] + 0u);
snprintf (color_name, sizeof color_name, "#%04x%04x%04x",
rgb[0] + 0u, rgb[1] + 0u, rgb[2] + 0u);
bg = (
#ifdef HAVE_NTGUI
0x00ffffff & /* Filter out palette info. */
@ -8537,7 +8537,8 @@ png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
img->background = lookup_rgb_color (f, bg->red, bg->green, bg->blue);
#else /* USE_CAIRO */
char color_name[30];
sprintf (color_name, "#%04x%04x%04x", bg->red, bg->green, bg->blue);
snprintf (color_name, sizeof color_name, "#%04x%04x%04x",
bg->red, bg->green, bg->blue);
img->background
= image_alloc_image_color (f, img, build_string (color_name), 0);
#endif /* USE_CAIRO */