From: Bert Vermeulen Date: Tue, 18 Nov 2014 15:24:52 +0000 (+0100) Subject: Always check config key capabilities before using them. X-Git-Tag: sigrok-cli-0.6.0~50 X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=24bd9719166584e3b4e6e6423d6d6bcbc1a88251;p=sigrok-cli.git Always check config key capabilities before using them. --- diff --git a/main.c b/main.c index 81dc4ad..1b17c52 100644 --- a/main.c +++ b/main.c @@ -73,6 +73,61 @@ int select_channels(struct sr_dev_inst *sdi) return SR_OK; } +gboolean config_key_has_cap(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, uint32_t capability) +{ + GVariant *gvar_opts; + const uint32_t *opts; + gsize num_opts, i; + + if (sr_config_list(driver, sdi, cg, SR_CONF_DEVICE_OPTIONS, + &gvar_opts) != SR_OK) + return FALSE; + + opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(uint32_t)); + for (i = 0; i < num_opts; i++) { + if ((opts[i] & SR_CONF_MASK) == key) { + if ((opts[i] & capability) == capability) + return TRUE; + else + return FALSE; + } + } + + return FALSE; +} + +int maybe_config_get(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, GVariant **gvar) +{ + if (config_key_has_cap(driver, sdi, cg, key, SR_CONF_GET)) + return sr_config_get(driver, sdi, cg, key, gvar); + + return SR_ERR_NA; +} + +int maybe_config_set(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, GVariant *gvar) +{ + if (config_key_has_cap(driver, sdi, cg, key, SR_CONF_SET)) + return sr_config_set(sdi, cg, key, gvar); + + return SR_ERR_NA; +} + +int maybe_config_list(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, GVariant **gvar) +{ + if (config_key_has_cap(driver, sdi, cg, key, SR_CONF_LIST)) + return sr_config_list(driver, sdi, cg, key, gvar); + + return SR_ERR_NA; +} + static void get_option(void) { struct sr_dev_inst *sdi; @@ -107,7 +162,7 @@ static void get_option(void) set_dev_options(sdi, devargs); else devargs = NULL; - if ((ret = sr_config_get(driver, sdi, cg, ci->key, &gvar)) != SR_OK) + if ((ret = maybe_config_get(driver, sdi, cg, ci->key, &gvar)) != SR_OK) g_critical("Failed to get '%s': %s", opt_get, sr_strerror(ret)); s = g_variant_print(gvar, FALSE); printf("%s\n", s); diff --git a/parsers.c b/parsers.c index ee99271..35545e0 100644 --- a/parsers.c +++ b/parsers.c @@ -200,7 +200,7 @@ int parse_triggerstring(const struct sr_dev_inst *sdi, const char *s, driver = sr_dev_inst_driver_get(sdi); channels = sr_dev_inst_channels_get(sdi); - if (sr_config_list(driver, sdi, NULL, SR_CONF_TRIGGER_MATCH, + if (maybe_config_list(driver, sdi, NULL, SR_CONF_TRIGGER_MATCH, &gvar) != SR_OK) { g_critical("Device doesn't support any triggers."); return FALSE; diff --git a/session.c b/session.c index fb9ebb6..0011445 100644 --- a/session.c +++ b/session.c @@ -45,13 +45,14 @@ static int set_limit_time(const struct sr_dev_inst *sdi) return SR_ERR; } - if (sr_dev_has_option(sdi, SR_CONF_LIMIT_MSEC)) { + if (config_key_has_cap(driver, sdi, NULL, SR_CONF_LIMIT_MSEC, SR_CONF_SET)) { gvar = g_variant_new_uint64(time_msec); if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_MSEC, gvar) != SR_OK) { g_critical("Failed to configure time limit."); return SR_ERR; } - } else if (sr_dev_has_option(sdi, SR_CONF_SAMPLERATE)) { + } else if (config_key_has_cap(driver, sdi, NULL, SR_CONF_SAMPLERATE, + SR_CONF_GET | SR_CONF_SET)) { /* Convert to samples based on the samplerate. */ sr_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE, &gvar); samplerate = g_variant_get_uint64(gvar); @@ -159,7 +160,7 @@ void datafeed_in(const struct sr_dev_inst *sdi, rcvd_samples_logic = rcvd_samples_analog = 0; - if (sr_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE, + if (maybe_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE, &gvar) == SR_OK) { samplerate = g_variant_get_uint64(gvar); g_variant_unref(gvar); @@ -422,8 +423,8 @@ int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args) if ((ret = opt_to_gvar(key, value, &src)) != 0) return ret; cg = select_channel_group(sdi); - ret = sr_config_set(sdi, cg, src.key, src.data); - if (ret != SR_OK) { + if ((ret = maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, cg, + src.key, src.data)) != SR_OK) { g_critical("Failed to set device option '%s'.", (char *)key); return ret; } @@ -459,7 +460,7 @@ void run_session(void) driver = sr_dev_inst_driver_get(sdi); if (sr_config_list(driver, sdi, NULL, SR_CONF_DEVICE_OPTIONS, &gvar) != SR_OK) { - g_critical("Failed to query sr_config_list(SR_CONF_DEVICE_OPTIONS)."); + g_critical("Failed to query list device options."); return; } @@ -553,8 +554,8 @@ void run_session(void) sr_session_destroy(session); return; } - if (sr_config_list(driver, sdi, NULL, - SR_CONF_LIMIT_SAMPLES, &gvar) == SR_OK) { + if (maybe_config_list(driver, sdi, NULL, SR_CONF_LIMIT_SAMPLES, + &gvar) == SR_OK) { /* The device has no compression, or compression is turned * off, and publishes its sample memory size. */ g_variant_get(gvar, "(tt)", &min_samples, &max_samples); @@ -569,7 +570,7 @@ void run_session(void) } } gvar = g_variant_new_uint64(limit_samples); - if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) { + if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) { g_critical("Failed to configure sample limit."); sr_session_destroy(session); return; @@ -583,7 +584,7 @@ void run_session(void) return; } gvar = g_variant_new_uint64(limit_frames); - if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) { + if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) { g_critical("Failed to configure frame limit."); sr_session_destroy(session); return; diff --git a/show.c b/show.c index ca6cb11..8ee99da 100644 --- a/show.c +++ b/show.c @@ -135,33 +135,6 @@ static gint sort_channels(gconstpointer a, gconstpointer b) return pa->index - pb->index; } -static gboolean config_key_has_cap(const struct sr_dev_inst *sdi, - struct sr_channel_group *cg, uint32_t key, uint32_t capability) -{ - struct sr_dev_driver *driver; - GVariant *gvar_opts; - const uint32_t *opts; - gsize num_opts, i; - - driver = sr_dev_inst_driver_get(sdi); - if (sr_config_list(driver, sdi, cg, SR_CONF_DEVICE_OPTIONS, - &gvar_opts) != SR_OK) - return FALSE; - - opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(uint32_t)); - for (i = 0; i < num_opts; i++) { - if ((opts[i] & SR_CONF_MASK) == key) { - if (opts[i] & capability) - return TRUE; - else - return FALSE; - } - } - - return FALSE; -} - - static void print_dev_line(const struct sr_dev_inst *sdi) { struct sr_channel *ch; @@ -179,8 +152,7 @@ static void print_dev_line(const struct sr_dev_inst *sdi) s = g_string_sized_new(128); g_string_assign(s, driver->name); - if (config_key_has_cap(sdi, NULL, SR_CONF_CONN, SR_CONF_GET) - && sr_config_get(driver, sdi, NULL, SR_CONF_CONN, &gvar) == SR_OK) { + if (maybe_config_get(driver, sdi, NULL, SR_CONF_CONN, &gvar) == SR_OK) { g_string_append(s, ":conn="); g_string_append(s, g_variant_get_string(gvar, NULL)); g_variant_unref(gvar); @@ -355,7 +327,7 @@ void show_dev_detail(void) continue; if (key == SR_CONF_TRIGGER_MATCH) { - if (sr_config_list(driver, sdi, channel_group, key, + if (maybe_config_list(driver, sdi, channel_group, key, &gvar_list) != SR_OK) { printf("\n"); continue; @@ -396,7 +368,8 @@ void show_dev_detail(void) printf("\n"); g_variant_unref(gvar_list); - } else if (key == SR_CONF_LIMIT_SAMPLES) { + } else if (key == SR_CONF_LIMIT_SAMPLES + && config_key_has_cap(driver, sdi, cg, key, SR_CONF_LIST)) { /* If implemented in config_list(), this denotes the * maximum number of samples a device can send. This * really applies only to logic analyzers, and then @@ -404,17 +377,16 @@ void show_dev_detail(void) * have it turned off by default. The values returned * are the low/high limits. */ if (sr_config_list(driver, sdi, channel_group, key, - &gvar) != SR_OK) { - continue; + &gvar) == SR_OK) { + g_variant_get(gvar, "(tt)", &low, &high); + g_variant_unref(gvar); + printf(" Maximum number of samples: %"PRIu64"\n", high); } - g_variant_get(gvar, "(tt)", &low, &high); - g_variant_unref(gvar); - printf(" Maximum number of samples: %"PRIu64"\n", high); } else if (key == SR_CONF_SAMPLERATE) { /* Supported samplerates */ printf(" %s", srci->id); - if (sr_config_list(driver, sdi, channel_group, SR_CONF_SAMPLERATE, + if (maybe_config_list(driver, sdi, channel_group, SR_CONF_SAMPLERATE, &gvar_dict) != SR_OK) { printf("\n"); continue; @@ -455,16 +427,16 @@ void show_dev_detail(void) g_variant_unref(gvar_dict); } else if (srci->datatype == SR_T_UINT64) { - printf(" %s", srci->id); + printf(" %s: ", srci->id); gvar = NULL; - if (sr_config_get(driver, sdi, channel_group, key, + if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { tmp_uint64 = g_variant_get_uint64(gvar); g_variant_unref(gvar); } else tmp_uint64 = 0; - if (sr_config_list(driver, sdi, channel_group, - SR_CONF_BUFFERSIZE, &gvar_list) != SR_OK) { + if (maybe_config_list(driver, sdi, channel_group, + key, &gvar_list) != SR_OK) { if (gvar) { /* Can't list it, but we have a value to show. */ printf("%"PRIu64" (current)", tmp_uint64); @@ -485,14 +457,14 @@ void show_dev_detail(void) } else if (srci->datatype == SR_T_STRING) { printf(" %s: ", srci->id); - if (sr_config_get(driver, sdi, channel_group, key, + if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { tmp_str = g_strdup(g_variant_get_string(gvar, NULL)); g_variant_unref(gvar); } else tmp_str = NULL; - if (sr_config_list(driver, sdi, channel_group, key, + if (maybe_config_list(driver, sdi, channel_group, key, &gvar) != SR_OK) { if (tmp_str) { /* Can't list it, but we have a value to show. */ @@ -518,13 +490,13 @@ void show_dev_detail(void) } else if (srci->datatype == SR_T_UINT64_RANGE) { printf(" %s: ", srci->id); - if (sr_config_list(driver, sdi, channel_group, key, + if (maybe_config_list(driver, sdi, channel_group, key, &gvar_list) != SR_OK) { printf("\n"); continue; } - if (sr_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { + if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { g_variant_get(gvar, "(tt)", &cur_low, &cur_high); g_variant_unref(gvar); } else { @@ -548,7 +520,7 @@ void show_dev_detail(void) } else if (srci->datatype == SR_T_BOOL) { printf(" %s: ", srci->id); - if (sr_config_get(driver, sdi, channel_group, key, + if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { if (g_variant_get_boolean(gvar)) printf("on (current), off\n"); @@ -560,13 +532,13 @@ void show_dev_detail(void) } else if (srci->datatype == SR_T_DOUBLE_RANGE) { printf(" %s: ", srci->id); - if (sr_config_list(driver, sdi, channel_group, key, + if (maybe_config_list(driver, sdi, channel_group, key, &gvar_list) != SR_OK) { printf("\n"); continue; } - if (sr_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { + if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { g_variant_get(gvar, "(dd)", &dcur_low, &dcur_high); g_variant_unref(gvar); } else { @@ -590,7 +562,7 @@ void show_dev_detail(void) } else if (srci->datatype == SR_T_FLOAT) { printf(" %s: ", srci->id); - if (sr_config_get(driver, sdi, channel_group, key, + if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { printf("%f\n", g_variant_get_double(gvar)); g_variant_unref(gvar); @@ -600,14 +572,14 @@ void show_dev_detail(void) } else if (srci->datatype == SR_T_RATIONAL_PERIOD || srci->datatype == SR_T_RATIONAL_VOLT) { printf(" %s", srci->id); - if (sr_config_get(driver, sdi, channel_group, key, + if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) { g_variant_get(gvar, "(tt)", &cur_p, &cur_q); g_variant_unref(gvar); } else cur_p = cur_q = 0; - if (sr_config_list(driver, sdi, channel_group, + if (maybe_config_list(driver, sdi, channel_group, key, &gvar_list) != SR_OK) { printf("\n"); continue; diff --git a/sigrok-cli.h b/sigrok-cli.h index 4ea449f..c07d6cb 100644 --- a/sigrok-cli.h +++ b/sigrok-cli.h @@ -32,6 +32,18 @@ /* main.c */ int select_channels(struct sr_dev_inst *sdi); +gboolean config_key_has_cap(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, uint32_t capability); +int maybe_config_get(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, GVariant **gvar); +int maybe_config_set(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, GVariant *gvar); +int maybe_config_list(struct sr_dev_driver *driver, + const struct sr_dev_inst *sdi, struct sr_channel_group *cg, + uint32_t key, GVariant **gvar); /* show.c */ void show_version(void);