diff options
-rw-r--r-- | lib/utils_base.c | 19 | ||||
-rw-r--r-- | lib/utils_base.h | 5 | ||||
-rw-r--r-- | lib/utils_cmd.c | 42 | ||||
-rw-r--r-- | lib/utils_cmd.h | 13 | ||||
-rw-r--r-- | plugins/check_dbi.c | 1 | ||||
-rw-r--r-- | plugins/check_pgsql.c | 1 | ||||
-rw-r--r-- | plugins/common.h | 14 | ||||
-rw-r--r-- | plugins/popen.c | 29 | ||||
-rw-r--r-- | plugins/runcmd.c | 13 | ||||
-rw-r--r-- | plugins/utils.c | 31 | ||||
-rw-r--r-- | plugins/utils.h | 9 |
11 files changed, 70 insertions, 107 deletions
diff --git a/lib/utils_base.c b/lib/utils_base.c index 19a531f..fd7058d 100644 --- a/lib/utils_base.c +++ b/lib/utils_base.c | |||
@@ -37,6 +37,9 @@ | |||
37 | 37 | ||
38 | monitoring_plugin *this_monitoring_plugin=NULL; | 38 | monitoring_plugin *this_monitoring_plugin=NULL; |
39 | 39 | ||
40 | unsigned int timeout_state = STATE_CRITICAL; | ||
41 | unsigned int timeout_interval = DEFAULT_SOCKET_TIMEOUT; | ||
42 | |||
40 | int _np_state_read_file(FILE *); | 43 | int _np_state_read_file(FILE *); |
41 | 44 | ||
42 | void np_init( char *plugin_name, int argc, char **argv ) { | 45 | void np_init( char *plugin_name, int argc, char **argv ) { |
@@ -359,6 +362,22 @@ char *np_extract_value(const char *varlist, const char *name, char sep) { | |||
359 | return value; | 362 | return value; |
360 | } | 363 | } |
361 | 364 | ||
365 | const char * | ||
366 | state_text (int result) | ||
367 | { | ||
368 | switch (result) { | ||
369 | case STATE_OK: | ||
370 | return "OK"; | ||
371 | case STATE_WARNING: | ||
372 | return "WARNING"; | ||
373 | case STATE_CRITICAL: | ||
374 | return "CRITICAL"; | ||
375 | case STATE_DEPENDENT: | ||
376 | return "DEPENDENT"; | ||
377 | default: | ||
378 | return "UNKNOWN"; | ||
379 | } | ||
380 | } | ||
362 | 381 | ||
363 | /* | 382 | /* |
364 | * Read a string representing a state (ok, warning... or numeric: 0, 1) and | 383 | * Read a string representing a state (ok, warning... or numeric: 0, 1) and |
diff --git a/lib/utils_base.h b/lib/utils_base.h index 42ae0c0..d7e7dff 100644 --- a/lib/utils_base.h +++ b/lib/utils_base.h | |||
@@ -61,6 +61,10 @@ void print_thresholds(const char *, thresholds *); | |||
61 | int check_range(double, range *); | 61 | int check_range(double, range *); |
62 | int get_status(double, thresholds *); | 62 | int get_status(double, thresholds *); |
63 | 63 | ||
64 | /* Handle timeouts */ | ||
65 | extern unsigned int timeout_state; | ||
66 | extern unsigned int timeout_interval; | ||
67 | |||
64 | /* All possible characters in a threshold range */ | 68 | /* All possible characters in a threshold range */ |
65 | #define NP_THRESHOLDS_CHARS "-0123456789.:@~" | 69 | #define NP_THRESHOLDS_CHARS "-0123456789.:@~" |
66 | 70 | ||
@@ -107,5 +111,6 @@ void np_state_write_string(time_t, char *); | |||
107 | void np_init(char *, int argc, char **argv); | 111 | void np_init(char *, int argc, char **argv); |
108 | void np_set_args(int argc, char **argv); | 112 | void np_set_args(int argc, char **argv); |
109 | void np_cleanup(); | 113 | void np_cleanup(); |
114 | const char *state_text (int); | ||
110 | 115 | ||
111 | #endif /* _UTILS_BASE_ */ | 116 | #endif /* _UTILS_BASE_ */ |
diff --git a/lib/utils_cmd.c b/lib/utils_cmd.c index 7eb9a3a..795840d 100644 --- a/lib/utils_cmd.c +++ b/lib/utils_cmd.c | |||
@@ -40,6 +40,7 @@ | |||
40 | 40 | ||
41 | /** includes **/ | 41 | /** includes **/ |
42 | #include "common.h" | 42 | #include "common.h" |
43 | #include "utils.h" | ||
43 | #include "utils_cmd.h" | 44 | #include "utils_cmd.h" |
44 | #include "utils_base.h" | 45 | #include "utils_base.h" |
45 | #include <fcntl.h> | 46 | #include <fcntl.h> |
@@ -65,31 +66,6 @@ extern char **environ; | |||
65 | # define SIG_ERR ((Sigfunc *)-1) | 66 | # define SIG_ERR ((Sigfunc *)-1) |
66 | #endif | 67 | #endif |
67 | 68 | ||
68 | /* This variable must be global, since there's no way the caller | ||
69 | * can forcibly slay a dead or ungainly running program otherwise. | ||
70 | * Multithreading apps and plugins can initialize it (via CMD_INIT) | ||
71 | * in an async safe manner PRIOR to calling cmd_run() or cmd_run_array() | ||
72 | * for the first time. | ||
73 | * | ||
74 | * The check for initialized values is atomic and can | ||
75 | * occur in any number of threads simultaneously. */ | ||
76 | static pid_t *_cmd_pids = NULL; | ||
77 | |||
78 | /* Try sysconf(_SC_OPEN_MAX) first, as it can be higher than OPEN_MAX. | ||
79 | * If that fails and the macro isn't defined, we fall back to an educated | ||
80 | * guess. There's no guarantee that our guess is adequate and the program | ||
81 | * will die with SIGSEGV if it isn't and the upper boundary is breached. */ | ||
82 | #define DEFAULT_MAXFD 256 /* fallback value if no max open files value is set */ | ||
83 | #define MAXFD_LIMIT 8192 /* upper limit of open files */ | ||
84 | #ifdef _SC_OPEN_MAX | ||
85 | static long maxfd = 0; | ||
86 | #elif defined(OPEN_MAX) | ||
87 | # define maxfd OPEN_MAX | ||
88 | #else /* sysconf macro unavailable, so guess (may be wildly inaccurate) */ | ||
89 | # define maxfd DEFAULT_MAXFD | ||
90 | #endif | ||
91 | |||
92 | |||
93 | /** prototypes **/ | 69 | /** prototypes **/ |
94 | static int _cmd_open (char *const *, int *, int *) | 70 | static int _cmd_open (char *const *, int *, int *) |
95 | __attribute__ ((__nonnull__ (1, 2, 3))); | 71 | __attribute__ ((__nonnull__ (1, 2, 3))); |
@@ -406,3 +382,19 @@ cmd_file_read ( char *filename, output *out, int flags) | |||
406 | 382 | ||
407 | return 0; | 383 | return 0; |
408 | } | 384 | } |
385 | |||
386 | void | ||
387 | timeout_alarm_handler (int signo) | ||
388 | { | ||
389 | size_t i; | ||
390 | if (signo == SIGALRM) { | ||
391 | printf (_("%s - Plugin timed out after %d seconds\n"), | ||
392 | state_text(timeout_state), timeout_interval); | ||
393 | |||
394 | if(_cmd_pids) for(i = 0; i < maxfd; i++) { | ||
395 | if(_cmd_pids[i] != 0) kill(_cmd_pids[i], SIGKILL); | ||
396 | } | ||
397 | |||
398 | exit (timeout_state); | ||
399 | } | ||
400 | } | ||
diff --git a/lib/utils_cmd.h b/lib/utils_cmd.h index ebaf15b..6f3aeb8 100644 --- a/lib/utils_cmd.h +++ b/lib/utils_cmd.h | |||
@@ -32,4 +32,17 @@ void cmd_init (void); | |||
32 | #define CMD_NO_ARRAYS 0x01 /* don't populate arrays at all */ | 32 | #define CMD_NO_ARRAYS 0x01 /* don't populate arrays at all */ |
33 | #define CMD_NO_ASSOC 0x02 /* output.line won't point to buf */ | 33 | #define CMD_NO_ASSOC 0x02 /* output.line won't point to buf */ |
34 | 34 | ||
35 | /* This variable must be global, since there's no way the caller | ||
36 | * can forcibly slay a dead or ungainly running program otherwise. | ||
37 | * Multithreading apps and plugins can initialize it (via CMD_INIT) | ||
38 | * in an async safe manner PRIOR to calling cmd_run() or cmd_run_array() | ||
39 | * for the first time. | ||
40 | * | ||
41 | * The check for initialized values is atomic and can | ||
42 | * occur in any number of threads simultaneously. */ | ||
43 | static pid_t *_cmd_pids = NULL; | ||
44 | |||
45 | RETSIGTYPE timeout_alarm_handler (int); | ||
46 | |||
47 | |||
35 | #endif /* _UTILS_CMD_ */ | 48 | #endif /* _UTILS_CMD_ */ |
diff --git a/plugins/check_dbi.c b/plugins/check_dbi.c index 826eb8d..ced13d0 100644 --- a/plugins/check_dbi.c +++ b/plugins/check_dbi.c | |||
@@ -35,6 +35,7 @@ const char *email = "devel@monitoring-plugins.org"; | |||
35 | 35 | ||
36 | #include "common.h" | 36 | #include "common.h" |
37 | #include "utils.h" | 37 | #include "utils.h" |
38 | #include "utils_cmd.h" | ||
38 | 39 | ||
39 | #include "netutils.h" | 40 | #include "netutils.h" |
40 | 41 | ||
diff --git a/plugins/check_pgsql.c b/plugins/check_pgsql.c index 5cd4709..11ce691 100644 --- a/plugins/check_pgsql.c +++ b/plugins/check_pgsql.c | |||
@@ -34,6 +34,7 @@ const char *email = "devel@monitoring-plugins.org"; | |||
34 | 34 | ||
35 | #include "common.h" | 35 | #include "common.h" |
36 | #include "utils.h" | 36 | #include "utils.h" |
37 | #include "utils_cmd.h" | ||
37 | 38 | ||
38 | #include "netutils.h" | 39 | #include "netutils.h" |
39 | #include <libpq-fe.h> | 40 | #include <libpq-fe.h> |
diff --git a/plugins/common.h b/plugins/common.h index 6bf4fca..0f08e2f 100644 --- a/plugins/common.h +++ b/plugins/common.h | |||
@@ -225,4 +225,18 @@ enum { | |||
225 | # define __attribute__(x) /* do nothing */ | 225 | # define __attribute__(x) /* do nothing */ |
226 | #endif | 226 | #endif |
227 | 227 | ||
228 | /* Try sysconf(_SC_OPEN_MAX) first, as it can be higher than OPEN_MAX. | ||
229 | * If that fails and the macro isn't defined, we fall back to an educated | ||
230 | * guess. There's no guarantee that our guess is adequate and the program | ||
231 | * will die with SIGSEGV if it isn't and the upper boundary is breached. */ | ||
232 | #define DEFAULT_MAXFD 256 /* fallback value if no max open files value is set */ | ||
233 | #define MAXFD_LIMIT 8192 /* upper limit of open files */ | ||
234 | #ifdef _SC_OPEN_MAX | ||
235 | static long maxfd = 0; | ||
236 | #elif defined(OPEN_MAX) | ||
237 | # define maxfd OPEN_MAX | ||
238 | #else /* sysconf macro unavailable, so guess (may be wildly inaccurate) */ | ||
239 | # define maxfd DEFAULT_MAXFD | ||
240 | #endif | ||
241 | |||
228 | #endif /* _COMMON_H_ */ | 242 | #endif /* _COMMON_H_ */ |
diff --git a/plugins/popen.c b/plugins/popen.c index 592263f..116d168 100644 --- a/plugins/popen.c +++ b/plugins/popen.c | |||
@@ -78,7 +78,6 @@ RETSIGTYPE popen_timeout_alarm_handler (int); | |||
78 | 78 | ||
79 | #define min(a,b) ((a) < (b) ? (a) : (b)) | 79 | #define min(a,b) ((a) < (b) ? (a) : (b)) |
80 | #define max(a,b) ((a) > (b) ? (a) : (b)) | 80 | #define max(a,b) ((a) > (b) ? (a) : (b)) |
81 | int open_max (void); /* {Prog openmax} */ | ||
82 | static void err_sys (const char *, ...) __attribute__((noreturn,format(printf, 1, 2))); | 81 | static void err_sys (const char *, ...) __attribute__((noreturn,format(printf, 1, 2))); |
83 | char *rtrim (char *, const char *); | 82 | char *rtrim (char *, const char *); |
84 | 83 | ||
@@ -86,7 +85,6 @@ char *pname = NULL; /* caller can set this from argv[0] */ | |||
86 | 85 | ||
87 | /*int *childerr = NULL;*//* ptr to array allocated at run-time */ | 86 | /*int *childerr = NULL;*//* ptr to array allocated at run-time */ |
88 | /*extern pid_t *childpid = NULL; *//* ptr to array allocated at run-time */ | 87 | /*extern pid_t *childpid = NULL; *//* ptr to array allocated at run-time */ |
89 | static int maxfd; /* from our open_max(), {Prog openmax} */ | ||
90 | 88 | ||
91 | #ifdef REDHAT_SPOPEN_ERROR | 89 | #ifdef REDHAT_SPOPEN_ERROR |
92 | static volatile int childtermd = 0; | 90 | static volatile int childtermd = 0; |
@@ -187,13 +185,11 @@ spopen (const char *cmdstring) | |||
187 | argv[i] = NULL; | 185 | argv[i] = NULL; |
188 | 186 | ||
189 | if (childpid == NULL) { /* first time through */ | 187 | if (childpid == NULL) { /* first time through */ |
190 | maxfd = open_max (); /* allocate zeroed out array for child pids */ | ||
191 | if ((childpid = calloc ((size_t)maxfd, sizeof (pid_t))) == NULL) | 188 | if ((childpid = calloc ((size_t)maxfd, sizeof (pid_t))) == NULL) |
192 | return (NULL); | 189 | return (NULL); |
193 | } | 190 | } |
194 | 191 | ||
195 | if (child_stderr_array == NULL) { /* first time through */ | 192 | if (child_stderr_array == NULL) { /* first time through */ |
196 | maxfd = open_max (); /* allocate zeroed out array for child pids */ | ||
197 | if ((child_stderr_array = calloc ((size_t)maxfd, sizeof (int))) == NULL) | 193 | if ((child_stderr_array = calloc ((size_t)maxfd, sizeof (int))) == NULL) |
198 | return (NULL); | 194 | return (NULL); |
199 | } | 195 | } |
@@ -273,15 +269,6 @@ spclose (FILE * fp) | |||
273 | return (1); | 269 | return (1); |
274 | } | 270 | } |
275 | 271 | ||
276 | #ifdef OPEN_MAX | ||
277 | static int openmax = OPEN_MAX; | ||
278 | #else | ||
279 | static int openmax = 0; | ||
280 | #endif | ||
281 | |||
282 | #define OPEN_MAX_GUESS 256 /* if OPEN_MAX is indeterminate */ | ||
283 | /* no guarantee this is adequate */ | ||
284 | |||
285 | #ifdef REDHAT_SPOPEN_ERROR | 272 | #ifdef REDHAT_SPOPEN_ERROR |
286 | RETSIGTYPE | 273 | RETSIGTYPE |
287 | popen_sigchld_handler (int signo) | 274 | popen_sigchld_handler (int signo) |
@@ -311,22 +298,6 @@ popen_timeout_alarm_handler (int signo) | |||
311 | } | 298 | } |
312 | 299 | ||
313 | 300 | ||
314 | int | ||
315 | open_max (void) | ||
316 | { | ||
317 | if (openmax == 0) { /* first time through */ | ||
318 | errno = 0; | ||
319 | if ((openmax = sysconf (_SC_OPEN_MAX)) < 0) { | ||
320 | if (errno == 0) | ||
321 | openmax = OPEN_MAX_GUESS; /* it's indeterminate */ | ||
322 | else | ||
323 | err_sys (_("sysconf error for _SC_OPEN_MAX")); | ||
324 | } | ||
325 | } | ||
326 | return (openmax); | ||
327 | } | ||
328 | |||
329 | |||
330 | /* Fatal error related to a system call. | 301 | /* Fatal error related to a system call. |
331 | * Print a message and die. */ | 302 | * Print a message and die. */ |
332 | 303 | ||
diff --git a/plugins/runcmd.c b/plugins/runcmd.c index 1a7c904..c382867 100644 --- a/plugins/runcmd.c +++ b/plugins/runcmd.c | |||
@@ -67,19 +67,6 @@ | |||
67 | * occur in any number of threads simultaneously. */ | 67 | * occur in any number of threads simultaneously. */ |
68 | static pid_t *np_pids = NULL; | 68 | static pid_t *np_pids = NULL; |
69 | 69 | ||
70 | /* Try sysconf(_SC_OPEN_MAX) first, as it can be higher than OPEN_MAX. | ||
71 | * If that fails and the macro isn't defined, we fall back to an educated | ||
72 | * guess. There's no guarantee that our guess is adequate and the program | ||
73 | * will die with SIGSEGV if it isn't and the upper boundary is breached. */ | ||
74 | #ifdef _SC_OPEN_MAX | ||
75 | static long maxfd = 0; | ||
76 | #elif defined(OPEN_MAX) | ||
77 | # define maxfd OPEN_MAX | ||
78 | #else /* sysconf macro unavailable, so guess (may be wildly inaccurate) */ | ||
79 | # define maxfd 256 | ||
80 | #endif | ||
81 | |||
82 | |||
83 | /** prototypes **/ | 70 | /** prototypes **/ |
84 | static int np_runcmd_open(const char *, int *, int *) | 71 | static int np_runcmd_open(const char *, int *, int *) |
85 | __attribute__((__nonnull__(1, 2, 3))); | 72 | __attribute__((__nonnull__(1, 2, 3))); |
diff --git a/plugins/utils.c b/plugins/utils.c index 231af92..ee62013 100644 --- a/plugins/utils.c +++ b/plugins/utils.c | |||
@@ -36,9 +36,6 @@ extern const char *progname; | |||
36 | #define STRLEN 64 | 36 | #define STRLEN 64 |
37 | #define TXTBLK 128 | 37 | #define TXTBLK 128 |
38 | 38 | ||
39 | unsigned int timeout_state = STATE_CRITICAL; | ||
40 | unsigned int timeout_interval = DEFAULT_SOCKET_TIMEOUT; | ||
41 | |||
42 | time_t start_time, end_time; | 39 | time_t start_time, end_time; |
43 | 40 | ||
44 | /* ************************************************************************** | 41 | /* ************************************************************************** |
@@ -148,33 +145,6 @@ print_revision (const char *command_name, const char *revision) | |||
148 | command_name, revision, PACKAGE, VERSION); | 145 | command_name, revision, PACKAGE, VERSION); |
149 | } | 146 | } |
150 | 147 | ||
151 | const char * | ||
152 | state_text (int result) | ||
153 | { | ||
154 | switch (result) { | ||
155 | case STATE_OK: | ||
156 | return "OK"; | ||
157 | case STATE_WARNING: | ||
158 | return "WARNING"; | ||
159 | case STATE_CRITICAL: | ||
160 | return "CRITICAL"; | ||
161 | case STATE_DEPENDENT: | ||
162 | return "DEPENDENT"; | ||
163 | default: | ||
164 | return "UNKNOWN"; | ||
165 | } | ||
166 | } | ||
167 | |||
168 | void | ||
169 | timeout_alarm_handler (int signo) | ||
170 | { | ||
171 | if (signo == SIGALRM) { | ||
172 | printf (_("%s - Plugin timed out after %d seconds\n"), | ||
173 | state_text(timeout_state), timeout_interval); | ||
174 | exit (timeout_state); | ||
175 | } | ||
176 | } | ||
177 | |||
178 | int | 148 | int |
179 | is_numeric (char *number) | 149 | is_numeric (char *number) |
180 | { | 150 | { |
@@ -708,4 +678,3 @@ char *sperfdata_int (const char *label, | |||
708 | 678 | ||
709 | return data; | 679 | return data; |
710 | } | 680 | } |
711 | |||
diff --git a/plugins/utils.h b/plugins/utils.h index a436e1c..6aa316f 100644 --- a/plugins/utils.h +++ b/plugins/utils.h | |||
@@ -29,13 +29,6 @@ suite of plugins. */ | |||
29 | void support (void); | 29 | void support (void); |
30 | void print_revision (const char *, const char *); | 30 | void print_revision (const char *, const char *); |
31 | 31 | ||
32 | /* Handle timeouts */ | ||
33 | |||
34 | extern unsigned int timeout_state; | ||
35 | extern unsigned int timeout_interval; | ||
36 | |||
37 | RETSIGTYPE timeout_alarm_handler (int); | ||
38 | |||
39 | extern time_t start_time, end_time; | 32 | extern time_t start_time, end_time; |
40 | 33 | ||
41 | /* Test input types */ | 34 | /* Test input types */ |
@@ -89,8 +82,6 @@ void usage4(const char *) __attribute__((noreturn)); | |||
89 | void usage5(void) __attribute__((noreturn)); | 82 | void usage5(void) __attribute__((noreturn)); |
90 | void usage_va(const char *fmt, ...) __attribute__((noreturn)); | 83 | void usage_va(const char *fmt, ...) __attribute__((noreturn)); |
91 | 84 | ||
92 | const char *state_text (int); | ||
93 | |||
94 | #define max(a,b) (((a)>(b))?(a):(b)) | 85 | #define max(a,b) (((a)>(b))?(a):(b)) |
95 | #define min(a,b) (((a)<(b))?(a):(b)) | 86 | #define min(a,b) (((a)<(b))?(a):(b)) |
96 | 87 | ||