From 5d5586b0588969c9e9ff28da6cd558bfb5f68d9b Mon Sep 17 00:00:00 2001 From: Mahesh Bandewar Date: Wed, 22 Aug 2018 18:01:37 -0700 Subject: [PATCH] iproute: make clang happy These are primarily fixes for "string is not string literal" warnings / errors (with -Werror -Wformat-nonliteral). This should be a no-op change. I had to replace couple of print helper functions with the code they call as it was becoming harder to eliminate these warnings, however these helpers were used only at couple of places, so no major change as such. Signed-off-by: Mahesh Bandewar Signed-off-by: Stephen Hemminger --- include/json_writer.h | 3 +-- ip/iplink_can.c | 19 ++++++++++++------- lib/color.c | 1 + lib/json_print.c | 1 + lib/json_writer.c | 15 +-------------- misc/ss.c | 3 ++- tc/m_ematch.c | 1 + tc/m_ematch.h | 1 + 8 files changed, 20 insertions(+), 24 deletions(-) diff --git a/include/json_writer.h b/include/json_writer.h index 9ab88e1d..0c8831c1 100644 --- a/include/json_writer.h +++ b/include/json_writer.h @@ -29,6 +29,7 @@ void jsonw_pretty(json_writer_t *self, bool on); void jsonw_name(json_writer_t *self, const char *name); /* Add value */ +__attribute__((format(printf, 2, 3))) void jsonw_printf(json_writer_t *self, const char *fmt, ...); void jsonw_string(json_writer_t *self, const char *value); void jsonw_bool(json_writer_t *self, bool value); @@ -59,8 +60,6 @@ void jsonw_luint_field(json_writer_t *self, const char *prop, unsigned long int num); void jsonw_lluint_field(json_writer_t *self, const char *prop, unsigned long long int num); -void jsonw_float_field_fmt(json_writer_t *self, const char *prop, - const char *fmt, double val); /* Collections */ void jsonw_start_object(json_writer_t *self); diff --git a/ip/iplink_can.c b/ip/iplink_can.c index 587413da..c0deeb1f 100644 --- a/ip/iplink_can.c +++ b/ip/iplink_can.c @@ -316,11 +316,14 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) struct can_bittiming *bt = RTA_DATA(tb[IFLA_CAN_BITTIMING]); if (is_json_context()) { + json_writer_t *jw; + open_json_object("bittiming"); print_int(PRINT_ANY, "bitrate", NULL, bt->bitrate); - jsonw_float_field_fmt(get_json_writer(), - "sample_point", "%.3f", - (float) bt->sample_point / 1000.); + jw = get_json_writer(); + jsonw_name(jw, "sample_point"); + jsonw_printf(jw, "%.3f", + (float) bt->sample_point / 1000); print_int(PRINT_ANY, "tq", NULL, bt->tq); print_int(PRINT_ANY, "prop_seg", NULL, bt->prop_seg); print_int(PRINT_ANY, "phase_seg1", @@ -415,12 +418,14 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]); if (is_json_context()) { + json_writer_t *jw; + open_json_object("data_bittiming"); print_int(PRINT_JSON, "bitrate", NULL, dbt->bitrate); - jsonw_float_field_fmt(get_json_writer(), - "sample_point", - "%.3f", - (float) dbt->sample_point / 1000.); + jw = get_json_writer(); + jsonw_name(jw, "sample_point"); + jsonw_printf(jw, "%.3f", + (float) dbt->sample_point / 1000.); print_int(PRINT_JSON, "tq", NULL, dbt->tq); print_int(PRINT_JSON, "prop_seg", NULL, dbt->prop_seg); print_int(PRINT_JSON, "phase_seg1", diff --git a/lib/color.c b/lib/color.c index eaf69e74..e5406294 100644 --- a/lib/color.c +++ b/lib/color.c @@ -132,6 +132,7 @@ void set_color_palette(void) is_dark_bg = 1; } +__attribute__((format(printf, 3, 4))) int color_fprintf(FILE *fp, enum color_attr attr, const char *fmt, ...) { int ret = 0; diff --git a/lib/json_print.c b/lib/json_print.c index 5dc41bfa..77902824 100644 --- a/lib/json_print.c +++ b/lib/json_print.c @@ -100,6 +100,7 @@ void close_json_array(enum output_type type, const char *str) * functions handling different types */ #define _PRINT_FUNC(type_name, type) \ + __attribute__((format(printf, 4, 0))) \ void print_color_##type_name(enum output_type t, \ enum color_attr color, \ const char *key, \ diff --git a/lib/json_writer.c b/lib/json_writer.c index aa9ce1c6..68890b34 100644 --- a/lib/json_writer.c +++ b/lib/json_writer.c @@ -152,6 +152,7 @@ void jsonw_name(json_writer_t *self, const char *name) putc(' ', self->out); } +__attribute__((format(printf, 2, 3))) void jsonw_printf(json_writer_t *self, const char *fmt, ...) { va_list ap; @@ -205,11 +206,6 @@ void jsonw_null(json_writer_t *self) jsonw_printf(self, "null"); } -void jsonw_float_fmt(json_writer_t *self, const char *fmt, double num) -{ - jsonw_printf(self, fmt, num); -} - void jsonw_float(json_writer_t *self, double num) { jsonw_printf(self, "%g", num); @@ -274,15 +270,6 @@ void jsonw_float_field(json_writer_t *self, const char *prop, double val) jsonw_float(self, val); } -void jsonw_float_field_fmt(json_writer_t *self, - const char *prop, - const char *fmt, - double val) -{ - jsonw_name(self, prop); - jsonw_float_fmt(self, fmt, val); -} - void jsonw_uint_field(json_writer_t *self, const char *prop, unsigned int num) { jsonw_name(self, prop); diff --git a/misc/ss.c b/misc/ss.c index b2c634c8..f99b6874 100644 --- a/misc/ss.c +++ b/misc/ss.c @@ -977,6 +977,7 @@ static int buf_update(int len) } /* Append content to buffer as part of the current field */ +__attribute__((format(printf, 1, 2))) static void out(const char *fmt, ...) { struct column *f = current_field; @@ -1094,7 +1095,7 @@ static void print_header(void) { while (!field_is_last(current_field)) { if (!current_field->disabled) - out(current_field->header); + out("%s", current_field->header); field_next(); } } diff --git a/tc/m_ematch.c b/tc/m_ematch.c index ace4b3dd..a524b520 100644 --- a/tc/m_ematch.c +++ b/tc/m_ematch.c @@ -277,6 +277,7 @@ static int flatten_tree(struct ematch *head, struct ematch *tree) return count; } +__attribute__((format(printf, 5, 6))) int em_parse_error(int err, struct bstr *args, struct bstr *carg, struct ematch_util *e, char *fmt, ...) { diff --git a/tc/m_ematch.h b/tc/m_ematch.h index ff02d7ac..356f2ede 100644 --- a/tc/m_ematch.h +++ b/tc/m_ematch.h @@ -102,6 +102,7 @@ static inline int parse_layer(const struct bstr *b) return INT_MAX; } +__attribute__((format(printf, 5, 6))) int em_parse_error(int err, struct bstr *args, struct bstr *carg, struct ematch_util *, char *fmt, ...); int print_ematch(FILE *, const struct rtattr *); -- 2.39.5