diff options
Diffstat (limited to 'board/netstar/crcit.c')
| -rw-r--r-- | board/netstar/crcit.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/board/netstar/crcit.c b/board/netstar/crcit.c index ce98e20..e0cea9b 100644 --- a/board/netstar/crcit.c +++ b/board/netstar/crcit.c @@ -31,11 +31,11 @@ #include <sys/stat.h> #include "crcek.h" -extern unsigned long crc32(unsigned long, const unsigned char *, unsigned int); +extern uint32_t crc32(uint32_t, const unsigned char *, uint); -uint32_t data[LOADER_SIZE/4 + 3]; +static uint32_t data[LOADER_SIZE/4 + 3]; -int doit(char *path, unsigned version) +static int do_crc(char *path, unsigned version) { uint32_t *p; ssize_t size; @@ -56,10 +56,10 @@ int doit(char *path, unsigned version) fprintf(stderr, "File too large\n"); return EXIT_FAILURE; } - size = (((size - 1) >> 2) + 1) << 2; + size = (size + 3) & ~3; /* round up to 4 bytes */ data[0] = size + 4; /* add size of version field */ data[1] = version; - data[(size >> 2) + 2] = crc32(0, (unsigned char *)(data + 1), data[0]); + data[2 + (size >> 2)] = crc32(0, (unsigned char *)(data + 1), data[0]); close(fd); if (write(STDOUT_FILENO, data, size + 3*4) == -1) { @@ -73,12 +73,12 @@ int doit(char *path, unsigned version) int main(int argc, char **argv) { if (argc == 2) { - return doit(argv[1], 0); + return do_crc(argv[1], 0); } else if ((argc == 4) && (strcmp(argv[1], "-v") == 0)) { char *endptr, *nptr = argv[2]; unsigned ver = strtoul(nptr, &endptr, 0); if (*nptr != '\0' && *endptr == '\0') - return doit(argv[3], ver); + return do_crc(argv[3], ver); } fprintf(stderr, "Usage: crcit [-v version] <image>\n"); |