proc_doulongvec_minmax(9)

💅 NAME 💅

proc_doulongvec_minmax — bestie, this one reads a whole vector of long integers, and it does it with min/max values baked in 🎀

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✨ SYNOPSIS ✨

int proc_doulongvec_minmax (const struct ctl_table *table , int dir ,
void *buffer , size_t *lenp , loff_t *ppos );

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🫶 ARGUMENTS 🫶

• table — the sysctl table, literally the whole blueprint of the thing 👑
• dir — TRUE if this is a write to the sysctl file. yes, TRUE means write, don't ask, that's just the vibe 🌈
• buffer — the user buffer, the actual data zone 🦋
• lenp — the size of the user buffer, so we know how much room we're working with 📏
• ppos — file position, the little bookmark of where you are ✨

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🌸 DESCRIPTION 🌸

okay so here's the tea ☕ this routine reads/writes up to table->maxlen/sizeof(unsigned long) unsigned long values from/to the user buffer, and the whole time it's treating that buffer like it's an ASCII string. no cap, that's the move 💅

and the way it's so responsible 😭 — it will ensure the values are within the range specified by table->extra1 (min) and table->extra2 (max). like it's literally doing the vibe check on your numbers before they get anywhere 🔥

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⭐ RETURN ⭐

0 on success. that's it, that's the whole mood 🎀

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🧚 SEE ALSO 🧚

Kernel file ./kernel/sysctl.c, plus the whole friend group:

• enum sysctl_writes_mode(9)
• proc_first_pos_non_zero_ignore(9)
• proc_dostring(9)
• strtoul_lenient(9)
• proc_get_long(9)
• proc_put_long(9)
• proc_uint_u2k_conv_uop(9)
• proc_uint_k2u_conv(9)
• proc_uint_conv(9)
• proc_int_k2u_conv_kop(9)
• proc_int_u2k_conv_uop(9)
• proc_int_conv(9)
• proc_douintvec_conv(9)
• proc_dobool(9)
• proc_dointvec(9)
• proc_douintvec(9)
• proc_dointvec_minmax(9)
• proc_douintvec_minmax(9)
• proc_dou8vec_minmax(9)
• proc_ulong_conv(9)
• proc_ulong_u2k_conv_uop(9)
• proc_ulong_k2u_conv_kop(9)
• proc_doulongvec_conv(9)
• proc_dointvec_conv(9)
• proc_do_large_bitmap(9)

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ngl, go read those if you want the full lore 🍓

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and that's the page bestie 🫶 this one lives in ./kernel and the manual is dated October 2026 — iconic, periodt 💜