gh-110260: Check for PyList_SetItem errors in termios module

[sobolevn]

• Issue: Missing error checks in termios module #110260

[sobolevn]

There are other cases with different functions / modules. But, I want to be short in my PR, this way it is easier to merge them :)

[serhiy-storchaka]

Suggested change

	};
	}

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Debian PGO 3.x has failed when building commit 43baddc.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/249/builds/6547) and take a look at the build logs.
4. Check if the failure is related to this commit (43baddc) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/249/builds/6547

Failed tests:

• test.test_multiprocessing_fork.test_processes

Summary of the results of the build (if available):

==

Click to see traceback logs

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Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 43baddc2b9 gh-110260: Check for PyList_SetItem() errors in termios module (GH-110261)
Switched to and reset branch 'main'

find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
make[2]: [Makefile:2797: clean-retain-profile] Error 1 (ignored)
./Modules/readline.c: In function ‘setup_readline’:
./Modules/readline.c:1260:21: warning: assignment to ‘int (*)(const char *, int)’ from incompatible pointer type ‘int (*)(void)’ [-Wincompatible-pointer-types]
 1260 |     rl_startup_hook = on_startup_hook;
      |                     ^
./Modules/readline.c:1262:23: warning: assignment to ‘int (*)(const char *, int)’ from incompatible pointer type ‘int (*)(void)’ [-Wincompatible-pointer-types]
 1262 |     rl_pre_input_hook = on_pre_input_hook;
      |                       ^
./Modules/socketmodule.c: In function ‘getsockaddrarg’:
./Modules/socketmodule.c:2468:9: warning: ‘strncpy’ specified bound 64 equals destination size [-Wstringop-truncation]
 2468 |         strncpy((char *)sa->salg_name, name, sizeof(sa->salg_name));
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/context.c:56: warning: mpd_setminalloc: ignoring request to set MPD_MINALLOC a second time

./Modules/_decimal/libmpdec/context.c:56: warning: mpd_setminalloc: ignoring request to set MPD_MINALLOC a second time

./Modules/readline.c: In function ‘setup_readline’:
./Modules/readline.c:1260:21: warning: assignment to ‘int (*)(const char *, int)’ from incompatible pointer type ‘int (*)(void)’ [-Wincompatible-pointer-types]
 1260 |     rl_startup_hook = on_startup_hook;
      |                     ^
./Modules/readline.c:1262:23: warning: assignment to ‘int (*)(const char *, int)’ from incompatible pointer type ‘int (*)(void)’ [-Wincompatible-pointer-types]
 1262 |     rl_pre_input_hook = on_pre_input_hook;
      |                       ^
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1043:3,
    inlined from ‘doParseXmlDecl’ at ./Modules/expat/xmltok.c:1197:13:
./Modules/expat/xmltok.c:390:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  390 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1043:3,
    inlined from ‘parsePseudoAttribute.part.0’ at ./Modules/expat/xmltok.c:1075:9:
./Modules/expat/xmltok.c:390:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  390 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1043:3,
    inlined from ‘parsePseudoAttribute.part.0’ at ./Modules/expat/xmltok.c:1081:12:
./Modules/expat/xmltok.c:390:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  390 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1043:3,
    inlined from ‘parsePseudoAttribute.part.0’ at ./Modules/expat/xmltok.c:1088:9:
./Modules/expat/xmltok.c:390:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  390 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c:390:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1043:3,
    inlined from ‘parsePseudoAttribute.part.0’ at ./Modules/expat/xmltok.c:1115:7:
./Modules/expat/xmltok.c:390:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  390 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1043:3,
    inlined from ‘parsePseudoAttribute.part.0’ at ./Modules/expat/xmltok.c:1128:9:
./Modules/expat/xmltok.c:390:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  390 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

make: *** [Makefile:2020: buildbottest] Error 5