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diff --git a/include/crm/common/util.h b/include/crm/common/util.h
index cb2461713f..82c8485869 100644
--- a/include/crm/common/util.h
+++ b/include/crm/common/util.h
@@ -1,154 +1,155 @@
/*
* Copyright 2004-2022 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#ifndef PCMK__CRM_COMMON_UTIL__H
# define PCMK__CRM_COMMON_UTIL__H
# include <sys/types.h> // gid_t, mode_t, size_t, time_t, uid_t
# include <stdlib.h>
# include <stdbool.h>
# include <stdint.h> // uint32_t
# include <limits.h>
# include <signal.h>
# include <glib.h>
# include <libxml/tree.h>
# include <crm/lrmd.h>
# include <crm/common/acl.h>
# include <crm/common/agents.h>
# include <crm/common/results.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file
* \brief Utility functions
* \ingroup core
*/
# define ONLINESTATUS "online" // Status of an online client
# define OFFLINESTATUS "offline" // Status of an offline client
/* public node attribute functions (from attrd_client.c) */
char *pcmk_promotion_score_name(const char *rsc_id);
/* public Pacemaker Remote functions (from remote.c) */
int crm_default_remote_port(void);
/* public score-related functions (from scores.c) */
+const char *pcmk_readable_score(int score);
int char2score(const char *score);
char *score2char(int score);
char *score2char_stack(int score, char *buf, size_t len);
int pcmk__add_scores(int score1, int score2);
/* public string functions (from strings.c) */
gboolean crm_is_true(const char *s);
int crm_str_to_boolean(const char *s, int *ret);
long long crm_get_msec(const char *input);
char * crm_strip_trailing_newline(char *str);
char *crm_strdup_printf(char const *format, ...) G_GNUC_PRINTF(1, 2);
guint crm_parse_interval_spec(const char *input);
/* public operation functions (from operations.c) */
gboolean parse_op_key(const char *key, char **rsc_id, char **op_type,
guint *interval_ms);
gboolean decode_transition_key(const char *key, char **uuid, int *transition_id,
int *action_id, int *target_rc);
gboolean decode_transition_magic(const char *magic, char **uuid,
int *transition_id, int *action_id,
int *op_status, int *op_rc, int *target_rc);
int rsc_op_expected_rc(lrmd_event_data_t *event);
gboolean did_rsc_op_fail(lrmd_event_data_t *event, int target_rc);
bool crm_op_needs_metadata(const char *rsc_class, const char *op);
xmlNode *crm_create_op_xml(xmlNode *parent, const char *prefix,
const char *task, const char *interval_spec,
const char *timeout);
#define CRM_DEFAULT_OP_TIMEOUT_S "20s"
bool pcmk_is_probe(const char *task, guint interval);
bool pcmk_xe_is_probe(xmlNode *xml_op);
bool pcmk_xe_mask_probe_failure(xmlNode *xml_op);
int compare_version(const char *version1, const char *version2);
/* coverity[+kill] */
void crm_abort(const char *file, const char *function, int line,
const char *condition, gboolean do_core, gboolean do_fork);
/*!
* \brief Check whether any of specified flags are set in a flag group
*
* \param[in] flag_group The flag group being examined
* \param[in] flags_to_check Which flags in flag_group should be checked
*
* \return true if \p flags_to_check is nonzero and any of its flags are set in
* \p flag_group, or false otherwise
*/
static inline bool
pcmk_any_flags_set(uint64_t flag_group, uint64_t flags_to_check)
{
return (flag_group & flags_to_check) != 0;
}
/*!
* \brief Check whether all of specified flags are set in a flag group
*
* \param[in] flag_group The flag group being examined
* \param[in] flags_to_check Which flags in flag_group should be checked
*
* \return true if \p flags_to_check is zero or all of its flags are set in
* \p flag_group, or false otherwise
*/
static inline bool
pcmk_all_flags_set(uint64_t flag_group, uint64_t flags_to_check)
{
return (flag_group & flags_to_check) == flags_to_check;
}
/*!
* \brief Convenience alias for pcmk_all_flags_set(), to check single flag
*/
#define pcmk_is_set(g, f) pcmk_all_flags_set((g), (f))
char *crm_meta_name(const char *field);
const char *crm_meta_value(GHashTable * hash, const char *field);
char *crm_md5sum(const char *buffer);
char *crm_generate_uuid(void);
// This belongs in ipc.h but is here for backward compatibility
bool crm_is_daemon_name(const char *name);
int crm_user_lookup(const char *name, uid_t * uid, gid_t * gid);
int pcmk_daemon_user(uid_t *uid, gid_t *gid);
#ifdef HAVE_GNUTLS_GNUTLS_H
void crm_gnutls_global_init(void);
#endif
char *pcmk_hostname(void);
bool pcmk_str_is_infinity(const char *s);
bool pcmk_str_is_minus_infinity(const char *s);
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
#include <crm/common/util_compat.h>
#endif
#ifdef __cplusplus
}
#endif
#endif
diff --git a/lib/common/scores.c b/lib/common/scores.c
index a0cf264ab3..311ea3e63b 100644
--- a/lib/common/scores.c
+++ b/lib/common/scores.c
@@ -1,200 +1,216 @@
/*
* Copyright 2004-2022 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <stdio.h> // snprintf(), NULL
#include <string.h> // strcpy(), strdup()
#include <sys/types.h> // size_t
int pcmk__score_red = 0;
int pcmk__score_green = 0;
int pcmk__score_yellow = 0;
/*!
* \brief Get the integer value of a score string
*
* Given a string representation of a score, return the integer equivalent.
* This accepts infinity strings as well as red, yellow, and green, and
* bounds the result to +/-INFINITY.
*
* \param[in] score Score as string
*
* \return Integer value corresponding to \p score
*/
int
char2score(const char *score)
{
if (score == NULL) {
return 0;
} else if (pcmk_str_is_minus_infinity(score)) {
return -CRM_SCORE_INFINITY;
} else if (pcmk_str_is_infinity(score)) {
return CRM_SCORE_INFINITY;
} else if (pcmk__str_eq(score, PCMK__VALUE_RED, pcmk__str_casei)) {
return pcmk__score_red;
} else if (pcmk__str_eq(score, PCMK__VALUE_YELLOW, pcmk__str_casei)) {
return pcmk__score_yellow;
} else if (pcmk__str_eq(score, PCMK__VALUE_GREEN, pcmk__str_casei)) {
return pcmk__score_green;
} else {
long long score_ll;
pcmk__scan_ll(score, &score_ll, 0LL);
if (score_ll > CRM_SCORE_INFINITY) {
return CRM_SCORE_INFINITY;
} else if (score_ll < -CRM_SCORE_INFINITY) {
return -CRM_SCORE_INFINITY;
} else {
return (int) score_ll;
}
}
}
+/*!
+ * \brief Return a displayable static string for a score value
+ *
+ * Given a score value, return a pointer to a static string representation of
+ * the score suitable for log messages, output, etc.
+ *
+ * \param[in] score Score to display
+ *
+ * \return Pointer to static memory containing string representation of \p score
+ * \note Subsequent calls to this function will overwrite the returned value, so
+ * it should be used only in a local context such as a printf()-style
+ * statement.
+ */
+const char *
+pcmk_readable_score(int score)
+{
+ // The longest possible result is "-INFINITY"
+ static char score_s[sizeof(CRM_MINUS_INFINITY_S)];
+
+ if (score >= CRM_SCORE_INFINITY) {
+ strcpy(score_s, CRM_INFINITY_S);
+
+ } else if (score <= -CRM_SCORE_INFINITY) {
+ strcpy(score_s, CRM_MINUS_INFINITY_S);
+
+ } else {
+ // Range is limited to +/-1000000, so no chance of overflow
+ snprintf(score_s, sizeof(score_s), "%d", score);
+ }
+
+ return score_s;
+}
+
/*!
* \brief Convert an integer score to a string, using a provided buffer
*
* Store the string equivalent of a given integer score in a given string
* buffer, using "INFINITY" and "-INFINITY" when appropriate.
*
* \param[in] score Integer score to convert
* \param[out] buf Where to store string representation of \p score
* \param[in] len Size of \p buf (in bytes)
*
* \return \p buf (or NULL if \p len is too small)
*/
char *
score2char_stack(int score, char *buf, size_t len)
{
CRM_CHECK((buf != NULL) && (len >= sizeof(CRM_MINUS_INFINITY_S)),
return NULL);
-
- if (score >= CRM_SCORE_INFINITY) {
- strcpy(buf, CRM_INFINITY_S);
- } else if (score <= -CRM_SCORE_INFINITY) {
- strcpy(buf, CRM_MINUS_INFINITY_S);
- } else {
- snprintf(buf, len, "%d", score);
- }
+ strcpy(buf, pcmk_readable_score(score));
return buf;
}
/*!
* \brief Return the string equivalent of an integer score
*
* Return the string equivalent of a given integer score, using "INFINITY" and
* "-INFINITY" when appropriate.
*
* \param[in] score Integer score to convert
*
* \return Newly allocated string equivalent of \p score
* \note The caller is responsible for freeing the return value. This function
* asserts on memory errors, so the return value can be assumed to be
* non-NULL.
*/
char *
score2char(int score)
{
- char *result = NULL;
+ char *result = strdup(pcmk_readable_score(score));
- if (score >= CRM_SCORE_INFINITY) {
- result = strdup(CRM_INFINITY_S);
- CRM_ASSERT(result != NULL);
-
- } else if (score <= -CRM_SCORE_INFINITY) {
- result = strdup(CRM_MINUS_INFINITY_S);
- CRM_ASSERT(result != NULL);
-
- } else {
- result = pcmk__itoa(score);
- }
+ CRM_ASSERT(result != NULL);
return result;
}
/*!
* \internal
* \brief Add two scores, bounding to +/-INFINITY
*
* \param[in] score1 First score to add
* \param[in] score2 Second score to add
*/
int
pcmk__add_scores(int score1, int score2)
{
int result = score1 + score2;
// First handle the cases where one or both is infinite
if (score1 <= -CRM_SCORE_INFINITY) {
if (score2 <= -CRM_SCORE_INFINITY) {
crm_trace("-INFINITY + -INFINITY = -INFINITY");
} else if (score2 >= CRM_SCORE_INFINITY) {
crm_trace("-INFINITY + +INFINITY = -INFINITY");
} else {
crm_trace("-INFINITY + %d = -INFINITY", score2);
}
return -CRM_SCORE_INFINITY;
} else if (score2 <= -CRM_SCORE_INFINITY) {
if (score1 >= CRM_SCORE_INFINITY) {
crm_trace("+INFINITY + -INFINITY = -INFINITY");
} else {
crm_trace("%d + -INFINITY = -INFINITY", score1);
}
return -CRM_SCORE_INFINITY;
} else if (score1 >= CRM_SCORE_INFINITY) {
if (score2 >= CRM_SCORE_INFINITY) {
crm_trace("+INFINITY + +INFINITY = +INFINITY");
} else {
crm_trace("+INFINITY + %d = +INFINITY", score2);
}
return CRM_SCORE_INFINITY;
} else if (score2 >= CRM_SCORE_INFINITY) {
crm_trace("%d + +INFINITY = +INFINITY", score1);
return CRM_SCORE_INFINITY;
}
/* As long as CRM_SCORE_INFINITY is less than half of the maximum integer,
* we can ignore the possibility of integer overflow
*/
// Bound result to infinity
if (result >= CRM_SCORE_INFINITY) {
crm_trace("%d + %d = +INFINITY", score1, score2);
return CRM_SCORE_INFINITY;
} else if (result <= -CRM_SCORE_INFINITY) {
crm_trace("%d + %d = -INFINITY", score1, score2);
return -CRM_SCORE_INFINITY;
}
crm_trace("%d + %d = %d", score1, score2, result);
return result;
}

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