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NetworkManager/shared/n-dhcp4
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Thomas Haller 5bdc36b392
n-dhcp4: use c_errno() in packet_sendto_udp() to avoid compiler warning 
With LTO enabled, the compiler might think that "len" in n_dhcp4_socket_packet_send()
might be uninitialized. That is even a correct assumption, as the compiler does not
understand the API of sendmsg() and that sendmsg() is supposed to set a positive errno.

Work around by using c_errno() in packet_sendto_udp().

    shared/n-dhcp4/src/n-dhcp4-c-connection.c: In function n_dhcp4_c_connection_send_request:
    shared/n-dhcp4/src/n-dhcp4-socket.c:368:19: error: len may be used uninitialized in this function [-Werror=maybe-uninitialized]
             } else if (len != n_buf) {
                       ^
    shared/n-dhcp4/src/n-dhcp4-socket.c:351:23: note: len was declared here
             size_t n_buf, len;
                           ^
2021-01-19 19:53:37 +01:00
..
.github/workflows nettools: reimport nettools' n-dhcp4 and rework logging 2020-06-03 22:34:22 +02:00
src n-dhcp4: use c_errno() in packet_sendto_udp() to avoid compiler warning 2021-01-19 19:53:37 +01:00
subprojects nettools: reimport nettools' n-dhcp4 and rework logging 2020-06-03 22:34:22 +02:00
.editorconfig Merge commit 'e23b3c9c3ac86b065eef002fa5c4321cc4a87df2' as 'shared/n-dhcp4' 2019-05-25 02:02:04 +02:00
.gitmodules Merge commit 'e23b3c9c3ac86b065eef002fa5c4321cc4a87df2' as 'shared/n-dhcp4' 2019-05-25 02:02:04 +02:00
AUTHORS Merge commit 'e23b3c9c3ac86b065eef002fa5c4321cc4a87df2' as 'shared/n-dhcp4' 2019-05-25 02:02:04 +02:00
meson.build nettools: reimport nettools' n-dhcp4 and rework logging 2020-06-03 22:34:22 +02:00
NEWS.md Merge commit 'e23b3c9c3ac86b065eef002fa5c4321cc4a87df2' as 'shared/n-dhcp4' 2019-05-25 02:02:04 +02:00
README.md Merge commit 'e23b3c9c3ac86b065eef002fa5c4321cc4a87df2' as 'shared/n-dhcp4' 2019-05-25 02:02:04 +02:00

README.md

n-dhcp4

Dynamic Host Configuration Protocol for IPv4

The n-dhcp4 project implements the IPv4 Dynamic Host Configuration Protocol as defined in RFC-2132+.

Project

Requirements

The requirements for this project are:

  • Linux kernel >= 3.19
  • libc (e.g., glibc >= 2.16)

At build-time, the following software is required:

  • meson >= 0.41
  • pkg-config >= 0.29

Build

The meson build-system is used for this project. Contact upstream documentation for detailed help. In most situations the following commands are sufficient to build and install from source:

mkdir build
cd build
meson setup ..
ninja
meson test
ninja install

No custom configuration options are available.

Repository:

License:

  • Apache-2.0 OR LGPL-2.1-or-later
  • See AUTHORS file for details.