diff options
| -rw-r--r-- | tests/boot-sector.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tests/boot-sector.c b/tests/boot-sector.c index e3193c0a12..0168fd0247 100644 --- a/tests/boot-sector.c +++ b/tests/boot-sector.c @@ -72,6 +72,7 @@ static uint8_t boot_sector[0x7e000] = { int boot_sector_init(const char *fname) { FILE *f = fopen(fname, "w"); + size_t len = sizeof boot_sector; if (!f) { fprintf(stderr, "Couldn't open \"%s\": %s", fname, strerror(errno)); @@ -80,13 +81,12 @@ int boot_sector_init(const char *fname) /* For Open Firmware based system, we can use a Forth script instead */ if (strcmp(qtest_get_arch(), "ppc64") == 0) { - memset(boot_sector, ' ', sizeof boot_sector); - sprintf((char *)boot_sector, "\\ Bootscript\n%x %x c! %x %x c!\n", + len = sprintf((char *)boot_sector, "\\ Bootscript\n%x %x c! %x %x c!\n", LOW(SIGNATURE), BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET, HIGH(SIGNATURE), BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET + 1); } - fwrite(boot_sector, 1, sizeof boot_sector, f); + fwrite(boot_sector, 1, len, f); fclose(f); return 0; } |