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| author | Bruno Haible <bruno@clisp.org> | 2019-01-05 17:00:53 +0100 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2019-01-05 17:00:53 +0100 |
| commit | ff3fe55c7c95bdb9460a40747912b4b309519838 (patch) | |
| tree | b2511c719ba1873e9452008424612d21f9eff982 /lib/argp-help.c | |
| parent | d91fe44f159cfe7614d9e1547624579161bd25c5 (diff) | |
| download | gnulib-ff3fe55c7c95bdb9460a40747912b4b309519838.tar.gz | |
argp: Don't pass an invalid argument to dgettext().
Reported by He X <xw897002528@gmail.com>.
* lib/argp.h (struct argp): Clarify that the args_doc field may be NULL.
* lib/argp-help.c (argp_args_usage): Don't pass a NULL args_doc to
dgettext().
Diffstat (limited to 'lib/argp-help.c')
| -rw-r--r-- | lib/argp-help.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/argp-help.c b/lib/argp-help.c index e5375a0f04..e5e97ecf6c 100644 --- a/lib/argp-help.c +++ b/lib/argp-help.c @@ -1412,8 +1412,10 @@ argp_args_usage (const struct argp *argp, const struct argp_state *state, char *our_level = *levels; int multiple = 0; const struct argp_child *child = argp->children; - const char *tdoc = dgettext (argp->argp_domain, argp->args_doc), *nl = 0; + const char *tdoc = + argp->args_doc ? dgettext (argp->argp_domain, argp->args_doc) : NULL; const char *fdoc = filter_doc (tdoc, ARGP_KEY_HELP_ARGS_DOC, argp, state); + const char *nl = NULL; if (fdoc) { |