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set: Print an error when setting umask
to a bad value
Repurpose the ENV_INVALID return value for env_set(), which wasn't currently used by anything. When a bad value is passed for the 'umask' key, return ENV_INVALID to signal this and print a good error message from the `set` builtin. This makes `set umask foo` properly produce an error.
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parent
d0c85471b4
commit
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3 changed files with 6 additions and 4 deletions
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@ -166,7 +166,7 @@ static int my_env_set(const wchar_t *key, const wcstring_list_t &val, int scope)
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case ENV_INVALID:
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{
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append_format(stderr_buffer, _(L"%ls: Unknown error"), L"set");
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append_format(stderr_buffer, _(L"%ls: Tried to set the special variable '%ls' to an invalid value\n"), L"set", key);
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retcode=1;
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break;
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}
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6
env.cpp
6
env.cpp
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@ -655,10 +655,12 @@ int env_set(const wcstring &key, const wchar_t *val, env_mode_flags_t var_mode)
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if (!errno && (!*end) && (mask <= 0777) && (mask >= 0))
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{
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umask(mask);
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/* Do not actually create a umask variable, on env_get, it will be calculated dynamically */
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return 0;
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}
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}
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/* Do not actually create a umask variable, on env_get, it will be calculated dynamically */
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return 0;
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return ENV_INVALID;
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}
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/*
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2
env.h
2
env.h
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@ -80,7 +80,7 @@ void env_init(const struct config_paths_t *paths = NULL);
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* ENV_PERM, can only be returned when setting as a user, e.g. ENV_USER is set. This means that the user tried to change a read-only variable.
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* ENV_SCOPE, the variable cannot be set in the given scope. This applies to readonly/electric variables set from the local or universal scopes, or set as exported.
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* ENV_INVALID, the variable name or mode was invalid
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* ENV_INVALID, the variable value was invalid. This applies only to special variables.
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*/
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int env_set(const wcstring &key, const wchar_t *val, env_mode_flags_t mode);
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