-Wconversion -Wsign-conversion -Werror compilation errors

[iu1j4]

When I try to compile liboping from source with:
CFLAGS="-Wconversion -Wsign-conversion -Werror" ./configure --prefix=/usr --without-perl-bindings --libdir=/usr/lib --disable-static
I got a lot of compile errors:
liboping.c: In function 'ping_icmp4_checksum':
liboping.c:273:8: error: conversion from 'uint32_t' {aka 'unsigned int'} to 'uint16_t' {aka 'short unsigned int'} may change value [-Werror=conversion]
273 | ret = ~sum;
| ^
liboping.c: In function 'ping_receive_one':
liboping.c:594:50: error: conversion to 'size_t' {aka 'long unsigned int'} from 'ssize_t' {aka 'long int'} may change the sign of the result [-Werror=sign-conversion]
594 | host = ping_receive_ipv4 (obj, payload_buffer, payload_buffer_len);
| ^~~~~~~~~~~~~~~~~~
liboping.c:600:50: error: conversion to 'size_t' {aka 'long unsigned int'} from 'ssize_t' {aka 'long int'} may change the sign of the result [-Werror=sign-conversion]
600 | host = ping_receive_ipv6 (obj, payload_buffer, payload_buffer_len);
| ^~~~~~~~~~~~~~~~~~
liboping.c: In function 'ping_send_one_ipv4':
liboping.c:693:25: error: conversion from 'int' to 'uint16_t' {aka 'short unsigned int'} may change value [-Werror=conversion]
693 | .icmp_id = htons (ph->ident),
| ~~^~~~~~~
liboping.c:694:25: error: conversion from 'int' to 'uint16_t' {aka 'short unsigned int'} may change value [-Werror=conversion]
694 | .icmp_seq = htons (ph->sequence),
| ~~^~~~~~~~~~
liboping.c:709:11: error: conversion from 'ssize_t' {aka 'long int'} to 'int' may change value [-Werror=conversion]
709 | status = ping_sendto (obj, ph, buf, buflen, fd);
| ^~~~~~~~~~~
liboping.c: In function 'ping_send_one_ipv6':
liboping.c:737:27: error: conversion from 'int' to 'uint16_t' {aka 'short unsigned int'} may change value [-Werror=conversion]
737 | .icmp6_id = htons (ph->ident),
| ~~^~~~~~~
liboping.c:738:27: error: conversion from 'int' to 'uint16_t' {aka 'short unsigned int'} may change value [-Werror=conversion]
738 | .icmp6_seq = htons (ph->sequence),
| ^~~~~~~~~~
liboping.c:741:12: error: conversion from 'size_t' {aka 'long unsigned int'} to 'int' may change value [-Werror=conversion]
741 | datalen = strlen (ph->data);
| ^~~~~~
liboping.c:742:27: error: conversion to 'long unsigned int' from 'int' may change the sign of the result [-Werror=sign-conversion]
742 | buflen = sizeof (*icmp6) + datalen;
| ^
liboping.c:747:26: error: conversion to 'size_t' {aka 'long unsigned int'} from 'int' may change the sign of the result [-Werror=sign-conversion]
747 | memcpy (data, ph->data, datalen);
| ^~~~~~~
liboping.c:753:38: error: conversion to 'size_t' {aka 'long unsigned int'} from 'int' may change the sign of the result [-Werror=sign-conversion]
753 | status = ping_sendto (obj, ph, buf, buflen, fd);
| ^~~~~~
liboping.c:753:11: error: conversion from 'ssize_t' {aka 'long int'} to 'int' may change value [-Werror=conversion]
753 | status = ping_sendto (obj, ph, buf, buflen, fd);
| ^~~~~~~~~~~
liboping.c: In function 'ping_open_socket':
liboping.c:1033:39: error: conversion from 'size_t' {aka 'long unsigned int'} to 'socklen_t' {aka 'unsigned int'} may change value [-Werror=conversion]
1033 | obj->device, strlen (obj->device) + 1) != 0)
| ~~~~~~~~~~~~~~~~~~~~~^
liboping.c: In function 'ping_iterator_get_info':
liboping.c:1838:6: error: conversion from 'size_t' {aka 'long unsigned int'} to 'socklen_t' {aka 'unsigned int'} may change value [-Werror=conversion]
1838 | *buffer_len,
| ^~~~~~~~~~~
cc1: all warnings being treated as errors
I use linux x86_64 with gcc-10 and glibc.
On Linux with musl-libc there is one more error:
liboping.c: In function 'ping_receive_one':
liboping.c:509:11: error: unsigned conversion from 'long int' to 'long unsigned int' changes value from '-8' to '18446744073709551608' [-Werror=sign-conversio]
509 | cmsg = CMSG_NXTHDR (&msghdr, cmsg))
| ^~~~~~~~~~~
liboping.c:509:11: error: unsigned conversion from 'long int' to 'long unsigned int' changes value from '-8' to '18446744073709551608' [-Werror=sign-conversio]
Could you try to correct the source using CFLAGS=-Wconversion -Wsign-conversion -Werror -pedantic-errors"?