X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_swap.c;h=a3f4df4482c012b74f23ced67be7845d4cc43cd5;hb=9ea5f808f64b044e76473795cd80c11edbf3eb17;hp=ef12e79894544cec5e5c85ecd9275a60d051baf8;hpb=6bae1121cd98a9b4082d46532c831cb5d624e55c;p=nagiosplug.git diff --git a/plugins/check_swap.c b/plugins/check_swap.c index ef12e79..a3f4df4 100644 --- a/plugins/check_swap.c +++ b/plugins/check_swap.c @@ -25,16 +25,16 @@ * *****************************************************************************/ -#include "common.h" -#include "popen.h" -#include "utils.h" - const char *progname = "check_swap"; const char *revision = "$Revision$"; -const char *copyright = "2000-2003"; +const char *copyright = "2000-2004"; const char *email = "nagiosplug-devel@lists.sourceforge.net"; -int check_swap (int usp, long unsigned int free_swap); +#include "common.h" +#include "popen.h" +#include "utils.h" + +int check_swap (int usp, float free_swap); int process_arguments (int argc, char **argv); int validate_arguments (void); void print_usage (void); @@ -42,8 +42,8 @@ void print_help (void); int warn_percent = 0; int crit_percent = 0; -long unsigned int warn_size = 0; -long unsigned int crit_size = 0; +double warn_size = 0; +double crit_size = 0; int verbose; int allswaps; @@ -51,19 +51,31 @@ int main (int argc, char **argv) { int percent_used, percent; - long unsigned int total_swap = 0, used_swap = 0, free_swap = 0; - long unsigned int dsktotal, dskused, dskfree; - int result = STATE_OK; + float total_swap = 0, used_swap = 0, free_swap = 0; + float dsktotal = 0, dskused = 0, dskfree = 0, tmp = 0; + int result = STATE_UNKNOWN; char input_buffer[MAX_INPUT_BUFFER]; char *perf; #ifdef HAVE_PROC_MEMINFO FILE *fp; #else + int conv_factor = SWAP_CONVERSION; # ifdef HAVE_SWAP - int conv_factor; /* Convert to MBs */ char *temp_buffer; char *swap_command; char *swap_format; +# else +# ifdef HAVE_DECL_SWAPCTL + int i=0, nswaps=0, swapctl_res=0; +# ifdef CHECK_SWAP_SWAPCTL_SVR4 + swaptbl_t *tbl=NULL; + swapent_t *ent=NULL; +# else +# ifdef CHECK_SWAP_SWAPCTL_BSD + struct swapent *ent; +# endif /* CHECK_SWAP_SWAPCTL_BSD */ +# endif /* CHECK_SWAP_SWAPCTL_SVR4 */ +# endif /* HAVE_DECL_SWAPCTL */ # endif #endif char str[32]; @@ -73,17 +85,16 @@ main (int argc, char **argv) bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); - status = strdup(""); - perf = strdup(""); + status = strdup (""); + perf = strdup (""); - if (process_arguments (argc, argv) != OK) - usage (_("Invalid command arguments supplied\n")); + if (process_arguments (argc, argv) == ERROR) + usage4 (_("Could not parse arguments")); #ifdef HAVE_PROC_MEMINFO fp = fopen (PROC_MEMINFO, "r"); while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) { - if (sscanf (input_buffer, " %s %lu %lu %lu", str, &dsktotal, &dskused, &dskfree) == 4 && - strstr (str, "Swap")) { + if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%*[:] %f %f %f", &dsktotal, &dskused, &dskfree) == 3) { dsktotal = dsktotal / 1048576; dskused = dskused / 1048576; dskfree = dskfree / 1048576; @@ -91,36 +102,42 @@ main (int argc, char **argv) used_swap += dskused; free_swap += dskfree; if (allswaps) { - percent = 100 * (((double) dskused) / ((double) dsktotal)); + if (dsktotal == 0) + percent=100.0; + else + percent = 100 * (((double) dskused) / ((double) dsktotal)); result = max_state (result, check_swap (percent, dskfree)); if (verbose) - asprintf (&status, "%s [%lu (%d%%)]", status, dskfree, 100 - percent); + asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent); + } + } + else if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%[TotalFre]%*[:] %f %*[k]%*[B]", str, &tmp)) { + if (strcmp ("Total", str) == 0) { + dsktotal = tmp / 1024; + } + else if (strcmp ("Free", str) == 0) { + dskfree = tmp / 1024; } } } fclose(fp); + dskused = dsktotal - dskfree; + total_swap = dsktotal; + used_swap = dskused; + free_swap = dskfree; #else # ifdef HAVE_SWAP asprintf(&swap_command, "%s", SWAP_COMMAND); asprintf(&swap_format, "%s", SWAP_FORMAT); - conv_factor = SWAP_CONVERSION; /* These override the command used if a summary (and thus ! allswaps) is required */ /* The summary flag returns more accurate information about swap usage on these OSes */ # ifdef _AIX if (!allswaps) { asprintf(&swap_command, "%s", "/usr/sbin/lsps -s"); - asprintf(&swap_format, "%s", "%d%*s %d"); + asprintf(&swap_format, "%s", "%f%*s %f"); conv_factor = 1; } -# else -# ifdef sun - if (!allswaps) { - asprintf(&swap_command, "%s", "/usr/sbin/swap -s"); - asprintf(&swap_format, "%s", "%*s %*dk %*s %*s + %*dk %*s = %dk %*s %dk %*s"); - conv_factor = 2048; - } -# endif # endif if (verbose >= 2) @@ -162,17 +179,8 @@ main (int argc, char **argv) free_swap = total_swap * (100 - used_swap) /100; used_swap = total_swap - free_swap; if (verbose >= 3) - printf (_("total=%d, used=%d, free=%d\n"), total_swap, used_swap, free_swap); + printf (_("total=%.0f, used=%.0f, free=%.0f\n"), total_swap, used_swap, free_swap); } else { -# else -# ifdef sun - if (!allswaps) { - sscanf (input_buffer, swap_format, &used_swap, &free_swap); - used_swap = used_swap / 1024; - free_swap = free_swap / 1024; - total_swap = used_swap + free_swap; - } else { -# endif # endif while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) { sscanf (input_buffer, swap_format, &dsktotal, &dskfree); @@ -185,7 +193,7 @@ main (int argc, char **argv) dskfree = dskfree / conv_factor; # endif if (verbose >= 3) - printf (_("total=%d, free=%d\n"), dsktotal, dskfree); + printf (_("total=%.0f, free=%.0f\n"), dsktotal, dskfree); dskused = dsktotal - dskfree; total_swap += dsktotal; @@ -195,15 +203,11 @@ main (int argc, char **argv) percent = 100 * (((double) dskused) / ((double) dsktotal)); result = max_state (result, check_swap (percent, dskfree)); if (verbose) - asprintf (&status, "%s [%lu (%d%%)]", status, dskfree, 100 - percent); + asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent); } } # ifdef _AIX } -# else -# ifdef sun - } -# endif # endif /* If we get anything on STDERR, at least set warning */ @@ -216,28 +220,121 @@ main (int argc, char **argv) /* close the pipe */ if (spclose (child_process)) result = max_state (result, STATE_WARNING); +# else +# ifdef CHECK_SWAP_SWAPCTL_SVR4 + + /* get the number of active swap devices */ + nswaps=swapctl(SC_GETNSWP, NULL); + + /* initialize swap table + entries */ + tbl=(swaptbl_t*)malloc(sizeof(swaptbl_t)+(sizeof(swapent_t)*nswaps)); + memset(tbl, 0, sizeof(swaptbl_t)+(sizeof(swapent_t)*nswaps)); + tbl->swt_n=nswaps; + for(i=0;iswt_ent[i]; + ent->ste_path=(char*)malloc(sizeof(char)*MAXPATHLEN); + } + + /* and now, tally 'em up */ + swapctl_res=swapctl(SC_LIST, tbl); + if(swapctl_res < 0){ + perror(_("swapctl failed: ")); + result = STATE_WARNING; + } + + for(i=0;iswt_ent[i].ste_pages / SWAP_CONVERSION; + dskfree = (float) tbl->swt_ent[i].ste_free / SWAP_CONVERSION; + dskused = ( dsktotal - dskfree ); + + if (verbose >= 3) + printf ("dsktotal=%.0f dskfree=%.0f dskused=%.0f\n", dsktotal, dskfree, dskused); + + if(allswaps && dsktotal > 0){ + percent = 100 * (((double) dskused) / ((double) dsktotal)); + result = max_state (result, check_swap (percent, dskfree)); + if (verbose) { + asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent); + } + } + + total_swap += dsktotal; + free_swap += dskfree; + used_swap += dskused; + } + + /* and clean up after ourselves */ + for(i=0;iswt_ent[i].ste_path); + } + free(tbl); +# else +# ifdef CHECK_SWAP_SWAPCTL_BSD + + /* get the number of active swap devices */ + nswaps=swapctl(SWAP_NSWAP, NULL, 0); + + /* initialize swap table + entries */ + ent=(struct swapent*)malloc(sizeof(struct swapent)*nswaps); + + /* and now, tally 'em up */ + swapctl_res=swapctl(SWAP_STATS, ent, nswaps); + if(swapctl_res < 0){ + perror(_("swapctl failed: ")); + result = STATE_WARNING; + } + + for(i=0;ise_nblks / conv_factor; + dskused = (float) ent->se_inuse / conv_factor; + dskfree = ( dsktotal - dskused ); + + if(allswaps && dsktotal > 0){ + percent = 100 * (((double) dskused) / ((double) dsktotal)); + result = max_state (result, check_swap (percent, dskfree)); + if (verbose) { + asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent); + } + } + + total_swap += dsktotal; + free_swap += dskfree; + used_swap += dskused; + } + + /* and clean up after ourselves */ + free(ent); + +# endif /* CHECK_SWAP_SWAPCTL_BSD */ +# endif /* CHECK_SWAP_SWAPCTL_SVR4 */ # endif /* HAVE_SWAP */ #endif /* HAVE_PROC_MEMINFO */ - percent_used = 100 * ((double) used_swap) / ((double) total_swap); + /* if total_swap == 0, let's not divide by 0 */ + if(total_swap) { + percent_used = 100 * ((double) used_swap) / ((double) total_swap); + } else { + percent_used = 0; + } + result = max_state (result, check_swap (percent_used, free_swap)); - asprintf (&status, _(" %d%% free (%lu MB out of %lu MB)%s"), - (100 - percent_used), free_swap, total_swap, status); - - asprintf (&perf, "%s", perfdata ("swap", (long) free_swap, "MB", - TRUE, (long) max (warn_size/1024, warn_percent/100.0*total_swap), - TRUE, (long) max (crit_size/1024, crit_percent/100.0*total_swap), - TRUE, 0, - TRUE, (long) total_swap)); - printf ("SWAP %s:%s |%s\n", state_text (result), status, perf); + printf (_("SWAP %s - %d%% free (%.0f MB out of %.0f MB) %s|"), + state_text (result), + (100 - percent_used), free_swap, total_swap, status); + + puts (perfdata ("swap", (long) free_swap, "MB", + TRUE, (long) max (warn_size/1024, warn_percent/100.0*total_swap), + TRUE, (long) max (crit_size/1024, crit_percent/100.0*total_swap), + TRUE, 0, + TRUE, (long) total_swap)); + return result; } - int -check_swap (int usp, long unsigned int free_swap) +check_swap (int usp, float free_swap) { int result = STATE_UNKNOWN; free_swap = free_swap * 1024; /* Convert back to bytes as warn and crit specified in bytes */ @@ -255,6 +352,7 @@ check_swap (int usp, long unsigned int free_swap) } + /* process command-line arguments */ int process_arguments (int argc, char **argv) @@ -284,12 +382,13 @@ process_arguments (int argc, char **argv) switch (c) { case 'w': /* warning size threshold */ if (is_intnonneg (optarg)) { - warn_size = atoi (optarg); + warn_size = (double) atoi (optarg); break; } else if (strstr (optarg, ",") && strstr (optarg, "%") && - sscanf (optarg, "%lu,%d%%", &warn_size, &warn_percent) == 2) { + sscanf (optarg, "%g,%d%%", &warn_size, &warn_percent) == 2) { + warn_size = floor(warn_size); break; } else if (strstr (optarg, "%") && @@ -297,16 +396,17 @@ process_arguments (int argc, char **argv) break; } else { - usage (_("Warning threshold must be integer or percentage!\n")); + usage4 (_("Warning threshold must be integer or percentage!")); } case 'c': /* critical size threshold */ if (is_intnonneg (optarg)) { - crit_size = atoi (optarg); + crit_size = (double) atoi (optarg); break; } else if (strstr (optarg, ",") && strstr (optarg, "%") && - sscanf (optarg, "%lu,%d%%", &crit_size, &crit_percent) == 2) { + sscanf (optarg, "%g,%d%%", &crit_size, &crit_percent) == 2) { + crit_size = floor(crit_size); break; } else if (strstr (optarg, "%") && @@ -314,7 +414,7 @@ process_arguments (int argc, char **argv) break; } else { - usage (_("Critical threshold must be integer or percentage!\n")); + usage4 (_("Critical threshold must be integer or percentage!")); } case 'a': /* all swap */ allswaps = TRUE; @@ -328,8 +428,8 @@ process_arguments (int argc, char **argv) case 'h': /* help */ print_help (); exit (STATE_OK); - case '?': /* help */ - usage (_("Invalid argument\n")); + case '?': /* error */ + usage2 (_("Unknown argument"), optarg); } } @@ -347,20 +447,18 @@ process_arguments (int argc, char **argv) if (c == argc) return validate_arguments (); if (warn_size == 0 && is_intnonneg (argv[c])) - warn_size = atoi (argv[c++]); + warn_size = (double) atoi (argv[c++]); if (c == argc) return validate_arguments (); if (crit_size == 0 && is_intnonneg (argv[c])) - crit_size = atoi (argv[c++]); + crit_size = (double) atoi (argv[c++]); return validate_arguments (); } - - int validate_arguments (void) { @@ -369,21 +467,18 @@ validate_arguments (void) return ERROR; } else if (warn_percent < crit_percent) { - usage - (_("Warning percentage should be more than critical percentage\n")); + usage4 + (_("Warning percentage should be more than critical percentage")); } else if (warn_size < crit_size) { - usage - (_("Warning free space should be more than critical free space\n")); + usage4 + (_("Warning free space should be more than critical free space")); } return OK; } - - - void print_help (void) { @@ -391,7 +486,7 @@ print_help (void) printf (_(COPYRIGHT), copyright, email); - printf (_("Check swap space on local server.\n\n")); + printf (_("Check swap space on local machine.\n\n")); print_usage (); @@ -407,12 +502,10 @@ print_help (void) -c, --critical=PERCENT%%\n\ Exit with CRITCAL status if less than PERCENT of swap space is free\n\ -a, --allswaps\n\ - Conduct comparisons for all swap partitions, one by one\n")); + Conduct comparisons for all swap partitions, one by one\n\ + -v, --verbose\n\ + Verbose output. Up to 3 levels\n")); - printf (_("\n\ -On Solaris, if -a specified, uses swap -l, otherwise uses swap -s.\n\ -Will be discrepencies because swap -s counts allocated swap and includes\n\ -real memory\n")); printf (_("\n\ On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.\n")); @@ -421,14 +514,10 @@ On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.\n")); - void print_usage (void) { - printf (_("Usage:\n\ - %s [-a] -w %% -c %%\n\ - %s [-a] -w -c \n\ - %s (-h | --help) for detailed help\n\ - %s (-V | --version) for version information\n"), - progname, progname, progname, progname); + printf ("\ +Usage: %s [-av] -w %% -c %%\n\ + %s [-av] -w -c \n", progname, progname); }