diff options
Diffstat (limited to 'parse-options.c')
| -rw-r--r-- | parse-options.c | 43 |
1 files changed, 30 insertions, 13 deletions
diff --git a/parse-options.c b/parse-options.c index 04adf21..19fc849 100644 --- a/parse-options.c +++ b/parse-options.c @@ -94,14 +94,14 @@ static int get_value(struct parse_opt_ctx_t *p, case OPTION_CALLBACK: if (unset) - return (*opt->callback)(opt, NULL, 1); + return (*opt->callback)(opt, NULL, 1) ? (-1) : 0; if (opt->flags & PARSE_OPT_NOARG) - return (*opt->callback)(opt, NULL, 0); + return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; if (opt->flags & PARSE_OPT_OPTARG && !p->opt) - return (*opt->callback)(opt, NULL, 0); + return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; if (!arg) return opterror(opt, "requires a value", flags); - return (*opt->callback)(opt, get_arg(p), 0); + return (*opt->callback)(opt, get_arg(p), 0) ? (-1) : 0; case OPTION_INTEGER: if (unset) { @@ -132,7 +132,7 @@ static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *optio return get_value(p, options, OPT_SHORT); } } - return error("unknown switch `%c'", *p->opt); + return -2; } static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg, @@ -217,7 +217,7 @@ is_abbreviated: abbrev_option->long_name); if (abbrev_option) return get_value(p, abbrev_option, abbrev_flags); - return error("unknown option `%s'", arg); + return -2; } void check_typos(const char *arg, const struct option *options) @@ -271,15 +271,23 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, ctx->opt = arg + 1; if (*ctx->opt == 'h') return parse_options_usage(usagestr, options); - if (parse_short_opt(ctx, options) < 0) - usage_with_options(usagestr, options); + switch (parse_short_opt(ctx, options)) { + case -1: + return parse_options_usage(usagestr, options); + case -2: + return PARSE_OPT_UNKNOWN; + } if (ctx->opt) check_typos(arg + 1, options); while (ctx->opt) { if (*ctx->opt == 'h') return parse_options_usage(usagestr, options); - if (parse_short_opt(ctx, options) < 0) - usage_with_options(usagestr, options); + switch (parse_short_opt(ctx, options)) { + case -1: + return parse_options_usage(usagestr, options); + case -2: + return PARSE_OPT_UNKNOWN; + } } continue; } @@ -296,8 +304,12 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, return usage_with_options_internal(usagestr, options, 1); if (!strcmp(arg + 2, "help")) return parse_options_usage(usagestr, options); - if (parse_long_opt(ctx, arg + 2, options)) - usage_with_options(usagestr, options); + switch (parse_long_opt(ctx, arg + 2, options)) { + case -1: + return parse_options_usage(usagestr, options); + case -2: + return PARSE_OPT_UNKNOWN; + } } return PARSE_OPT_DONE; } @@ -321,7 +333,12 @@ int parse_options(int argc, const char **argv, const struct option *options, case PARSE_OPT_DONE: break; default: /* PARSE_OPT_UNKNOWN */ - abort(); /* unreached yet */ + if (ctx.argv[0][1] == '-') { + error("unknown option `%s'", ctx.argv[0] + 2); + } else { + error("unknown switch `%c'", *ctx.opt); + } + usage_with_options(usagestr, options); } return parse_options_end(&ctx); |