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NetStar: make crcit utility more readable

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This patch makes the crcit utility more readable

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Ladislav Michl 2010-01-27 11:12:23 -05:00 committed by Tom Rix
parent d9657ac848
commit c2dccef33a
1 changed files with 5 additions and 4 deletions
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9
board/netstar/crcit.c
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@ -56,13 +56,14 @@ static int do_crc(char *path, unsigned version)
fprintf(stderr, "File too large\n");
return EXIT_FAILURE;
}
size = (size + 3) & ~3; /* round up to 4 bytes */
data[0] = size + 4; /* add size of version field */
size = (size + 3) & ~3; /* round up to 4 bytes */
size += 4; /* add size of version field */
data[0] = size;
data[1] = version;
data[2 + (size >> 2)] = crc32(0, (unsigned char *)(data + 1), data[0]);
data[size/4 + 1] = crc32(0, (unsigned char *)(data + 1), size);
close(fd);
if (write(STDOUT_FILENO, data, size + 3*4) == -1) {
if (write(STDOUT_FILENO, data, size + 4 /*size*/ + 4 /*crc*/) == -1) {
perror("Error writing file");
return EXIT_FAILURE;
}