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Add _FORTIFY_SOURCE support for inet_pton

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Add function __inet_pton_chk which calls __chk_fail when the size of
argument dst is too small.   inet_pton is redirected to __inet_pton_chk
or __inet_pton_warn when _FORTIFY_SOURCE is > 0.

Also add tests to debug/tst-fortify.c, update the abilist with
__inet_pton_chk and mention inet_pton fortification in maint.texi.

Co-authored-by: Frédéric Bérat <fberat@redhat.com>
Reviewed-by: Florian Weimer <fweimer@redhat.com>
This commit is contained in:
Aaron Merey
2025-03-20 13:13:33 -04:00
parent a71db81ed1
commit e3a6e85d67
42 changed files with 121 additions and 0 deletions
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1
sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
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@ -2515,4 +2515,5 @@ GLIBC_2.40 __riscv_hwprobe F
GLIBC_2.41 sched_getattr F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
GLIBC_2.42 pthread_gettid_np F

1
sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
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@ -2715,4 +2715,5 @@ GLIBC_2.40 __riscv_hwprobe F
GLIBC_2.41 sched_getattr F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
GLIBC_2.42 pthread_gettid_np F