--- /dev/null
+/*
+ * Copyright (C) 2021 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include "loglevel.h"
+#include <string.h>
+#include <strings.h>
+#include <ctype.h>
+
+struct loglevel_name_value {
+ const char *name;
+ int value;
+};
+
+static
+const struct loglevel_name_value loglevel_values[] = {
+ { .name = "EMERG", .value = LTTNG_LOGLEVEL_EMERG },
+ { .name = "TRACE_EMERG", .value = LTTNG_LOGLEVEL_EMERG },
+ { .name = "ALERT", .value = LTTNG_LOGLEVEL_ALERT },
+ { .name = "TRACE_ALERT", .value = LTTNG_LOGLEVEL_ALERT },
+ { .name = "CRIT", .value = LTTNG_LOGLEVEL_CRIT },
+ { .name = "TRACE_CRIT", .value = LTTNG_LOGLEVEL_CRIT },
+ { .name = "ERR", .value = LTTNG_LOGLEVEL_ERR },
+ { .name = "TRACE_ERR", .value = LTTNG_LOGLEVEL_ERR },
+ { .name = "WARNING", .value = LTTNG_LOGLEVEL_WARNING },
+ { .name = "TRACE_WARNING", .value = LTTNG_LOGLEVEL_WARNING },
+ { .name = "NOTICE", .value = LTTNG_LOGLEVEL_NOTICE },
+ { .name = "TRACE_NOTICE", .value = LTTNG_LOGLEVEL_NOTICE },
+ { .name = "INFO", .value = LTTNG_LOGLEVEL_INFO },
+ { .name = "TRACE_INFO", .value = LTTNG_LOGLEVEL_INFO },
+ { .name = "DEBUG_SYSTEM", .value = LTTNG_LOGLEVEL_DEBUG_SYSTEM },
+ { .name = "TRACE_DEBUG_SYSTEM", .value = LTTNG_LOGLEVEL_DEBUG_SYSTEM },
+ { .name = "SYSTEM", .value = LTTNG_LOGLEVEL_DEBUG_SYSTEM },
+ { .name = "DEBUG_PROGRAM", .value = LTTNG_LOGLEVEL_DEBUG_PROGRAM },
+ { .name = "TRACE_DEBUG_PROGRAM", .value = LTTNG_LOGLEVEL_DEBUG_PROGRAM },
+ { .name = "PROGRAM", .value = LTTNG_LOGLEVEL_DEBUG_PROGRAM },
+ { .name = "DEBUG_PROCESS", .value = LTTNG_LOGLEVEL_DEBUG_PROCESS },
+ { .name = "TRACE_DEBUG_PROCESS", .value = LTTNG_LOGLEVEL_DEBUG_PROCESS },
+ { .name = "PROCESS", .value = LTTNG_LOGLEVEL_DEBUG_PROCESS },
+ { .name = "DEBUG_MODULE", .value = LTTNG_LOGLEVEL_DEBUG_MODULE },
+ { .name = "TRACE_DEBUG_MODULE", .value = LTTNG_LOGLEVEL_DEBUG_MODULE },
+ { .name = "MODULE", .value = LTTNG_LOGLEVEL_DEBUG_MODULE },
+ { .name = "DEBUG_UNIT", .value = LTTNG_LOGLEVEL_DEBUG_UNIT },
+ { .name = "TRACE_DEBUG_UNIT", .value = LTTNG_LOGLEVEL_DEBUG_UNIT },
+ { .name = "UNIT", .value = LTTNG_LOGLEVEL_DEBUG_UNIT },
+ { .name = "DEBUG_FUNCTION", .value = LTTNG_LOGLEVEL_DEBUG_FUNCTION },
+ { .name = "TRACE_DEBUG_FUNCTION", .value = LTTNG_LOGLEVEL_DEBUG_FUNCTION },
+ { .name = "FUNCTION", .value = LTTNG_LOGLEVEL_DEBUG_FUNCTION },
+ { .name = "DEBUG_LINE", .value = LTTNG_LOGLEVEL_DEBUG_LINE },
+ { .name = "TRACE_DEBUG_LINE", .value = LTTNG_LOGLEVEL_DEBUG_LINE },
+ { .name = "LINE", .value = LTTNG_LOGLEVEL_DEBUG_LINE },
+ { .name = "DEBUG", .value = LTTNG_LOGLEVEL_DEBUG },
+ { .name = "TRACE_DEBUG", .value = LTTNG_LOGLEVEL_DEBUG },
+};
+
+static
+const struct loglevel_name_value loglevel_log4j_values[] = {
+ { .name = "OFF", .value = LTTNG_LOGLEVEL_LOG4J_OFF },
+ { .name = "LOG4J_OFF", .value = LTTNG_LOGLEVEL_LOG4J_OFF },
+ { .name = "FATAL", .value = LTTNG_LOGLEVEL_LOG4J_FATAL },
+ { .name = "LOG4J_FATAL", .value = LTTNG_LOGLEVEL_LOG4J_FATAL },
+ { .name = "ERROR", .value = LTTNG_LOGLEVEL_LOG4J_ERROR },
+ { .name = "LOG4J_ERROR", .value = LTTNG_LOGLEVEL_LOG4J_ERROR },
+ { .name = "WARN", .value = LTTNG_LOGLEVEL_LOG4J_WARN },
+ { .name = "LOG4J_WARN", .value = LTTNG_LOGLEVEL_LOG4J_WARN },
+ { .name = "INFO", .value = LTTNG_LOGLEVEL_LOG4J_INFO },
+ { .name = "LOG4J_INFO", .value = LTTNG_LOGLEVEL_LOG4J_INFO },
+ { .name = "DEBUG", .value = LTTNG_LOGLEVEL_LOG4J_DEBUG },
+ { .name = "LOG4J_DEBUG", .value = LTTNG_LOGLEVEL_LOG4J_DEBUG },
+ { .name = "TRACE", .value = LTTNG_LOGLEVEL_LOG4J_TRACE },
+ { .name = "LOG4J_TRACE", .value = LTTNG_LOGLEVEL_LOG4J_TRACE },
+ { .name = "ALL", .value = LTTNG_LOGLEVEL_LOG4J_ALL },
+ { .name = "LOG4J_ALL", .value = LTTNG_LOGLEVEL_LOG4J_ALL },
+};
+
+static
+const struct loglevel_name_value loglevel_jul_values[] = {
+ { .name = "OFF", .value = LTTNG_LOGLEVEL_JUL_OFF },
+ { .name = "JUL_OFF", .value = LTTNG_LOGLEVEL_JUL_OFF },
+ { .name = "SEVERE", .value = LTTNG_LOGLEVEL_JUL_SEVERE },
+ { .name = "JUL_SEVERE", .value = LTTNG_LOGLEVEL_JUL_SEVERE },
+ { .name = "WARNING", .value = LTTNG_LOGLEVEL_JUL_WARNING },
+ { .name = "JUL_WARNING", .value = LTTNG_LOGLEVEL_JUL_WARNING },
+ { .name = "INFO", .value = LTTNG_LOGLEVEL_JUL_INFO },
+ { .name = "JUL_INFO", .value = LTTNG_LOGLEVEL_JUL_INFO },
+ { .name = "CONFIG", .value = LTTNG_LOGLEVEL_JUL_CONFIG },
+ { .name = "JUL_CONFIG", .value = LTTNG_LOGLEVEL_JUL_CONFIG },
+ { .name = "FINE", .value = LTTNG_LOGLEVEL_JUL_FINE },
+ { .name = "JUL_FINE", .value = LTTNG_LOGLEVEL_JUL_FINE },
+ { .name = "FINER", .value = LTTNG_LOGLEVEL_JUL_FINER },
+ { .name = "JUL_FINER", .value = LTTNG_LOGLEVEL_JUL_FINER },
+ { .name = "FINEST", .value = LTTNG_LOGLEVEL_JUL_FINEST },
+ { .name = "JUL_FINEST", .value = LTTNG_LOGLEVEL_JUL_FINEST },
+ { .name = "ALL", .value = LTTNG_LOGLEVEL_JUL_ALL },
+ { .name = "JUL_ALL", .value = LTTNG_LOGLEVEL_JUL_ALL },
+};
+
+static
+const struct loglevel_name_value loglevel_python_values[] = {
+ { .name = "CRITICAL", .value = LTTNG_LOGLEVEL_PYTHON_CRITICAL },
+ { .name = "PYTHON_CRITICAL", .value = LTTNG_LOGLEVEL_PYTHON_CRITICAL },
+ { .name = "ERROR", .value = LTTNG_LOGLEVEL_PYTHON_ERROR },
+ { .name = "PYTHON_ERROR", .value = LTTNG_LOGLEVEL_PYTHON_ERROR },
+ { .name = "WARNING", .value = LTTNG_LOGLEVEL_PYTHON_WARNING },
+ { .name = "PYTHON_WARNING", .value = LTTNG_LOGLEVEL_PYTHON_WARNING },
+ { .name = "INFO", .value = LTTNG_LOGLEVEL_PYTHON_INFO },
+ { .name = "PYTHON_INFO", .value = LTTNG_LOGLEVEL_PYTHON_INFO },
+ { .name = "DEBUG", .value = LTTNG_LOGLEVEL_PYTHON_DEBUG },
+ { .name = "PYTNON_DEBUG", .value = LTTNG_LOGLEVEL_PYTHON_DEBUG },
+ { .name = "NOTSET", .value = LTTNG_LOGLEVEL_PYTHON_NOTSET },
+ { .name = "PYTHON_NOTSET", .value = LTTNG_LOGLEVEL_PYTHON_NOTSET },
+};
+
+static
+bool string_equal_insensitive(const char *a, const char *b)
+{
+ return strcasecmp(a, b) == 0;
+}
+
+static
+int lookup_value_from_name(const struct loglevel_name_value values[],
+ size_t values_count, const char *name)
+{
+ size_t i;
+ int ret = -1;
+
+ if (!name) {
+ goto end;
+ }
+
+ for (i = 0; i < values_count; i++) {
+ if (string_equal_insensitive(values[i].name, name)) {
+ /* Match found. */
+ ret = values[i].value;
+ goto end;
+ }
+ }
+
+end:
+ return ret;
+}
+
+static bool loglevel_parse_range_string_common(const char *str,
+ const struct loglevel_name_value *nvs,
+ size_t nvs_count,
+ int *min,
+ int *max)
+{
+ bool ret;
+ int i;
+ const struct loglevel_name_value *nv;
+
+ for (i = 0; i < nvs_count; i++) {
+ nv = &nvs[i];
+
+ if (strncmp(str, nv->name, strlen(nv->name)) == 0) {
+ break;
+ }
+ }
+
+ if (i == nvs_count) {
+ goto error;
+ }
+
+ *min = nv->value;
+ str += strlen(nv->name);
+
+ if (*str == '\0') {
+ *max = nv->value;
+ ret = true;
+ goto end;
+ }
+
+ if (strncmp(str, "..", strlen("..")) != 0) {
+ goto error;
+ }
+
+ str += strlen("..");
+
+ if (*str == '\0') {
+ *max = LTTNG_LOGLEVEL_EMERG;
+ ret = true;
+ goto end;
+ }
+
+ for (i = 0; i < nvs_count; i++) {
+ nv = &nvs[i];
+
+ if (strcmp(str, nv->name) == 0) {
+ break;
+ }
+ }
+
+ if (i == nvs_count) {
+ goto error;
+ }
+
+ *max = nv->value;
+
+ ret = true;
+ goto end;
+
+error:
+ ret = false;
+
+end:
+ return ret;
+}
+
+int loglevel_name_to_value(const char *name, enum lttng_loglevel *loglevel)
+{
+ int ret = lookup_value_from_name(loglevel_values,
+ ARRAY_SIZE(loglevel_values), name);
+
+ if (ret >= 0) {
+ *loglevel = (typeof(*loglevel)) ret;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+bool loglevel_parse_range_string(const char *str,
+ enum lttng_loglevel *min,
+ enum lttng_loglevel *max)
+{
+ int min_int, max_int;
+ bool ret = loglevel_parse_range_string_common(str, loglevel_values,
+ ARRAY_SIZE(loglevel_values), &min_int, &max_int);
+
+ *min = (lttng_loglevel) min_int;
+ *max = (lttng_loglevel) max_int;
+
+ return ret;
+}
+
+int loglevel_log4j_name_to_value(
+ const char *name, enum lttng_loglevel_log4j *loglevel)
+{
+ int ret = lookup_value_from_name(loglevel_log4j_values,
+ ARRAY_SIZE(loglevel_log4j_values),
+ name);
+
+ if (ret >= 0) {
+ *loglevel = (typeof(*loglevel)) ret;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+bool loglevel_log4j_parse_range_string(const char *str,
+ enum lttng_loglevel_log4j *min,
+ enum lttng_loglevel_log4j *max)
+{
+ int min_int, max_int;
+ bool ret = loglevel_parse_range_string_common(str,
+ loglevel_log4j_values,
+ ARRAY_SIZE(loglevel_log4j_values), &min_int, &max_int);
+
+ *min = (lttng_loglevel_log4j) min_int;
+ *max = (lttng_loglevel_log4j) max_int;
+
+ return ret;
+}
+
+int loglevel_jul_name_to_value(
+ const char *name, enum lttng_loglevel_jul *loglevel)
+{
+ int ret = lookup_value_from_name(loglevel_jul_values,
+ ARRAY_SIZE(loglevel_jul_values),
+ name);
+
+ if (ret >= 0) {
+ *loglevel = (typeof(*loglevel)) ret;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+bool loglevel_jul_parse_range_string(const char *str,
+ enum lttng_loglevel_jul *min,
+ enum lttng_loglevel_jul *max)
+{
+ int min_int, max_int;
+ bool ret = loglevel_parse_range_string_common(str, loglevel_jul_values,
+ ARRAY_SIZE(loglevel_jul_values), &min_int, &max_int);
+
+ *min = (lttng_loglevel_jul) min_int;
+ *max = (lttng_loglevel_jul) max_int;
+
+ return ret;
+}
+
+int loglevel_python_name_to_value(
+ const char *name, enum lttng_loglevel_python *loglevel)
+{
+ int ret = lookup_value_from_name(loglevel_python_values,
+ ARRAY_SIZE(loglevel_python_values),
+ name);
+
+ if (ret >= 0) {
+ *loglevel = (typeof(*loglevel)) ret;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+bool loglevel_python_parse_range_string(const char *str,
+ enum lttng_loglevel_python *min,
+ enum lttng_loglevel_python *max)
+{
+ int min_int, max_int;
+ bool ret = loglevel_parse_range_string_common(str,
+ loglevel_python_values,
+ ARRAY_SIZE(loglevel_python_values), &min_int, &max_int);
+
+ *min = (lttng_loglevel_python) min_int;
+ *max = (lttng_loglevel_python) max_int;
+
+ return ret;
+}
+
+static
+const char *lookup_name_from_value(const struct loglevel_name_value values[],
+ size_t values_count, int loglevel)
+{
+ size_t i;
+ const char *name = NULL;
+
+ for (i = 0; i < values_count; i++) {
+ if (values[i].value == loglevel) {
+ /* Match found. */
+ name = values[i].name;
+ goto end;
+ }
+ }
+
+end:
+ return name;
+}
+
+const char *loglevel_value_to_name(int loglevel)
+{
+ return lookup_name_from_value(
+ loglevel_values, ARRAY_SIZE(loglevel_values), loglevel);
+}
+
+const char *loglevel_log4j_value_to_name(int loglevel)
+{
+ return lookup_name_from_value(loglevel_log4j_values,
+ ARRAY_SIZE(loglevel_log4j_values), loglevel);
+}
+
+const char *loglevel_jul_value_to_name(int loglevel)
+{
+ return lookup_name_from_value(loglevel_jul_values,
+ ARRAY_SIZE(loglevel_jul_values), loglevel);
+}
+
+const char *loglevel_python_value_to_name(int loglevel)
+{
+ return lookup_name_from_value(loglevel_python_values,
+ ARRAY_SIZE(loglevel_python_values), loglevel);
+}