ldm_get_vnum(9)

🌸 NAME 🌸

okay bestie, welcome to ldm_get_vnum(9) from the Kernel API Manual ✨ this one converts a variable-width, big endian number into cpu order. no cap 💅

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🦋 SYNOPSIS 🦋

u64 ldm_get_vnum (const u8 *block );

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🎀 ARGUMENTS 🎀

• block — pointer to the variable-width number to convert 🫶 that's the whole assignment, bestie.

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✨ DESCRIPTION ✨

okay so large numbers in the LDM Database are often stored in a packed format. each number is prefixed by a one byte width marker. all numbers in the database are stored in big-endian byte order. this function reads one of these numbers and returns the result. periodt. 🔥

⚠️ N.B. this function DOES NOT perform any range checking, though the most it will read is eight bytes. like, she is literally not doing range-checking extra credit 😭 the read cap is eight bytes and that's the vibe.

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👑 RETURN 👑

• n — a number.
• 0 — zero, or an error occurred.

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💖 SEE ALSO 💖

Kernel file ./block/partitions/ldm.c — and here's the whole bestie lineup, no skips, no cap:

• ldm_parse_privhead(9)
• ldm_parse_tocblock(9)
• ldm_parse_vmdb(9)
• ldm_compare_privheads(9)
• ldm_compare_tocblocks(9)
• ldm_validate_privheads(9)
• ldm_validate_tocblocks(9)
• ldm_validate_vmdb(9)
• ldm_validate_partition_table(9)
• ldm_get_disk_objid(9)
• ldm_create_data_partitions(9)
• ldm_relative(9)
• ldm_get_vstr(9)
• ldm_parse_cmp3(9)
• ldm_parse_dgr3(9)
• ldm_parse_dgr4(9)
• ldm_parse_dsk3(9)
• ldm_parse_dsk4(9)
• ldm_parse_prt3(9)
• ldm_parse_vol5(9)
• ldm_parse_vblk(9)
• ldm_ldmdb_add(9)
• ldm_frag_add(9)
• ldm_frag_free(9)
• ldm_frag_commit(9)
• ldm_get_vblks(9)
• ldm_free_vblks(9)
• ldm_partition(9)

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catch u later, bestie — source/version: ./block/partitions, date: October 2026, page: ldm_get_vnum(9) 💖