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etdump: warn only once for non El Torito bootable ISO images

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Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D39869
This commit is contained in:
Ed Maste 2023-04-21 20:36:28 -04:00
parent fe5d8f7a64
commit bfe6a0afaa
1 changed files with 2 additions and 3 deletions
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5
usr.bin/etdump/etdump.c
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@ -167,9 +167,8 @@ dump_eltorito(FILE *iso, const char *filename, FILE *outfile,
bvd = (boot_volume_descriptor *)buffer;
if (memcmp(bvd->identifier, ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5) != 0)
warnx("%s: not a valid ISO", filename);
if (bvd->boot_record_indicator[0] != ISO_VOLUME_DESCRIPTOR_BOOT)
warnx("%s: not an El Torito bootable ISO", filename);
if (memcmp(bvd->boot_system_identifier, ET_ID, 23) != 0)
if (bvd->boot_record_indicator[0] != ISO_VOLUME_DESCRIPTOR_BOOT ||
memcmp(bvd->boot_system_identifier, ET_ID, 23) != 0)
warnx("%s: not an El Torito bootable ISO", filename);
boot_catalog = isonum_731(bvd->boot_catalog_pointer);