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pnglite: should use ntohl

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Replace manual conversion with ntohl()
This commit is contained in:
Toomas Soome 2021-01-11 21:42:44 +02:00
parent 86b653ed7e
commit 2c52512caf
1 changed files with 4 additions and 11 deletions
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15
contrib/pnglite/pnglite.c
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@ -52,12 +52,12 @@ file_read(png_t *png, void *out, size_t size, size_t numel)
static int
file_read_ul(png_t *png, unsigned *out)
{
uint8_t buf[4];
uint32_t buf;
if (file_read(png, buf, 1, 4) != 4)
if (file_read(png, &buf, 1, 4) != 4)
return (PNG_FILE_ERROR);
*out = (buf[0]<<24) | (buf[1]<<16) | (buf[2]<<8) | buf[3];
*out = ntohl(buf);
return (PNG_NO_ERROR);
}
@ -65,14 +65,7 @@ file_read_ul(png_t *png, unsigned *out)
static unsigned
get_ul(uint8_t *buf)
{
unsigned result;
uint8_t foo[4];
memcpy(foo, buf, 4);
result = (foo[0]<<24) | (foo[1]<<16) | (foo[2]<<8) | foo[3];
return (result);
return (ntohl(*(uint32_t *)buf));
}
static int