Messages in this thread Patch in this message | | | Date | Wed, 8 May 2024 22:20:15 -0700 | Subject | [PATCH v1] libsubcmd: Fix parse-options memory leak | From | Ian Rogers <> |
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If a usage string is built in parse_options_subcommand, also free it.
Signed-off-by: Ian Rogers <irogers@google.com> --- tools/lib/subcmd/parse-options.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/lib/subcmd/parse-options.c b/tools/lib/subcmd/parse-options.c index 9fa75943f2ed..d943d78b787e 100644 --- a/tools/lib/subcmd/parse-options.c +++ b/tools/lib/subcmd/parse-options.c @@ -633,11 +633,10 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o const char *const subcommands[], const char *usagestr[], int flags) { struct parse_opt_ctx_t ctx; + char *buf = NULL; /* build usage string if it's not provided */ if (subcommands && !usagestr[0]) { - char *buf = NULL; - astrcatf(&buf, "%s %s [<options>] {", subcmd_config.exec_name, argv[0]); for (int i = 0; subcommands[i]; i++) { @@ -679,7 +678,10 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o astrcatf(&error_buf, "unknown switch `%c'", *ctx.opt); usage_with_options(usagestr, options); } - + if (buf) { + usagestr[0] = NULL; + free(buf); + } return parse_options_end(&ctx); } -- 2.45.0.rc1.225.g2a3ae87e7f-goog
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