absl::DisableFlagfileAndEnvParsing

Disables the processing of flags that load values from secondary sources, specifically ‐‐flagfile, ‐‐fromenv, and ‐‐tryfromenv. When disabled, occurrences of these flags on the command line are skipped without opening files or inspecting environment variables, and a warning is printed to stderr. Direct command‐line flags passed via argv are still parsed normally.

Synopsis

Declared in <absl/flags/parse.h>

void
DisableFlagfileAndEnvParsing();

Description

This is primarily intended as a security precaution for privileged or setuid processes parsing untrusted command lines prior to dropping privileges.

Should only be called in main() before calling absl::ParseCommandLine() or absl::ParseAbseilFlagsOnly().

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