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tool_parsecfg: detect and error on recursive --config use

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The config file parser now has a maximum level of inclusions allowed (5)
to detect and prevent recursive inclusions of itself leading to badness.

Bonus: clean up return code handling from the config parser.

Test 774 verifies
Closes #19168
This commit is contained in:
Daniel Stenberg 2025-10-20 22:46:56 +02:00
parent b4f57c8045
commit 9e198618de
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GPG key ID: 5CC908FDB71E12C2
10 changed files with 72 additions and 32 deletions
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2
src/tool_helpers.c
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@ -40,8 +40,6 @@ const char *param2text(ParameterError error)
return "had unsupported trailing garbage";
case PARAM_OPTION_UNKNOWN:
return "is unknown";
case PARAM_OPTION_AMBIGUOUS:
return "is ambiguous";
case PARAM_REQUIRES_PARAMETER:
return "requires parameter";
case PARAM_BAD_USE: