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lib/base: heim_config_parse_file_multi warn if ignoring included config

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At present Heimdal silently ignores included configuration files that
cannot be successfully opened or parsed.  This is done to ensure that
an administrator or configuration management tool cannot lock users
out of a machine due to an editing mistake.

This change modifies heim_config_parse_file_multi() to warn the user
if a configuration file cannot be parsed or if an included ("include"
or "includedir") configuration file cannot be opened.  Example warnings
for a configuration file starting with:

  includedir c:/temp

where some of the matching file names cannot be parsed:

  Ignoring: c:\temp\20170516:1: binding before section

or opened:

  Ignoring: open or stat c:\temp\AUAA-83: Permission denied

A top level configuration file will also generate a warning if it
can be opened but cannot be parsed successfully produces

  Ignoring: c:\temp\foo.cmd:1: binding before section
  Ignoring: C:\ProgramData\Kerberos\krb5.conf:22: unmatched }

Change-Id: I455854156f4a61e1b7dad7f96601eca23d2368eb
This commit is contained in:
Jeffrey Altman
2020-05-25 21:18:29 -04:00
committed by Nicolas Williams
parent 5502fa4eca
commit f0de5f5c43
1 changed files with 8 additions and 4 deletions
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8
lib/base/config_file.c
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@@ -658,17 +658,21 @@ heim_config_parse_file_multi(heim_context context,
ret = heim_config_parse_debug(&f, res, &lineno, &str);
fclose(f.f);
if (ret) {
if (ret != HEIM_ERR_CONFIG_BADFORMAT) {
if (ret != HEIM_ERR_CONFIG_BADFORMAT)
ret = HEIM_ERR_CONFIG_BADFORMAT;
heim_set_error_message(context, ret, "%s:%u: %s",
fname, lineno, str);
}
goto out;
}
}
out:
config_include_depth--;
if (ret == HEIM_ERR_CONFIG_BADFORMAT || (ret && config_include_depth > 0)) {
heim_warn(context, ret, "Ignoring", fname);
if (config_include_depth > 0)
ret = 0;
}
free(newfname);
return ret;
}