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Diffstat (limited to '')
| -rw-r--r-- | plugins-root/pst3.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/plugins-root/pst3.c b/plugins-root/pst3.c new file mode 100644 index 0000000..1f69f3a --- /dev/null +++ b/plugins-root/pst3.c @@ -0,0 +1,262 @@ +/***************************************************************************** +* +* pst3 +* +* License: GPL +* Copyright (c) 2008 Monitoring Plugins Development Team +* +* Description: +* +* This file contains the pst3 executable. This is a replacement ps command +* for Solaris to get output which provides a long argument listing, which +* is not possible with the standard ps command (due to truncation). /usr/ucb/ps +* also has issues where some fields run into each other. +* +* This executable works by reading process address structures, so needs +* to be executed as root +* +* Originally written by R.W.Ingraham +* Rewritten by Duncan Ferguson (Altinity Ltd, June 2008) +* The rewrite was necessary as /dev/kmem is not available within +* non-global zones on Solaris 10 +* +* Details for rewrite came from +* source of /usr/ucb/ps on Solaris: +* http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/ucbcmd/ps/ps.c#argvoff +* usenet group posting +* http://groups.google.com/group/comp.unix.solaris/tree/browse_frm/month/2001-09/bfa40c08bac819a2?rnum=141&_done=%2Fgroup%2Fcomp.unix.solaris%2Fbrowse_frm%2Fmonth%2F2001-09%3F +* +* This program is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program. If not, see <http://www.gnu.org/licenses/>. +* +*****************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> +#include <procfs.h> +#include <sys/types32.h> + +/* + * Constants + */ + +#define PROC_DIR "/proc" +#define ARGS 30 + +/* + * Globals + */ + +static char * szProg; + +/* + * Prototypes + */ +void usage(); + +/*----------------------------------------------------------------------------*/ + +int main (int argc, char **argv) +{ + DIR *procdir; + struct dirent *proc; + char ps_name[ARGS]; + char as_name[ARGS]; + psinfo_t psinfo; + + /* Set our program name global */ + if ((szProg = strrchr(argv[0], '/')) != NULL) + szProg++; + else + szProg = argv[0]; + + /* if given any parameters, print out help */ + if(argc > 1) { + (void)usage(); + exit(1); + } + + /* Make sure that our euid is root */ + if (geteuid() != 0) + { + fprintf(stderr, "%s: This program can only be run by the root user!\n", szProg); + exit(1); + } + + if ((procdir = opendir(PROC_DIR)) == NULL) { + fprintf(stderr, "%s: cannot open PROC directory %s\n", szProg, PROC_DIR); + exit(1); + } + + /* Display column headings */ + printf("%c %5s %5s %5s %6s %6s %4s %s %s\n", + 'S', + "UID", + "PID", + "PPID", + "VSZ", + "RSS", + "%CPU", + "COMMAND", + "ARGS" + ); + + /* Zip through all of the process entries */ + while((proc = readdir(procdir))) { + int ps_fd; + int as_fd; + off_t argoff; + int i; + char *args; + char *procname; + char *ptr; + int argslen; + uintptr_t args_addr;; + uintptr_t *args_vecs;; + int args_count; + + if(proc->d_name[0] == '.') + continue; + + sprintf(ps_name,"%s/%s/%s",PROC_DIR,proc->d_name,"psinfo"); + sprintf(as_name,"%s/%s/%s",PROC_DIR,proc->d_name,"as"); +try_again: + if((ps_fd = open(ps_name, O_RDONLY)) == -1) + continue; + + if((as_fd = open(as_name, O_RDONLY)) == -1) { + close(ps_fd); + continue; + } + + if(read(ps_fd, &psinfo, sizeof(psinfo)) != sizeof(psinfo)) { + int err = errno; + close(ps_fd); + close(as_fd); + if(err == EAGAIN) goto try_again; + if(err != ENOENT) + fprintf(stderr, "%s: read() on %s: %s\n", szProg, + ps_name, strerror(err)); + continue; + } + close(ps_fd); + + /* system process, ignore since the previous version did */ + if( + psinfo.pr_nlwp == 0 || + strcmp(psinfo.pr_lwp.pr_clname, "SYS") == 0 + ) { + continue; + } + + /* get the procname to match previous versions */ + procname = strdup(psinfo.pr_psargs); + if((ptr = strchr(procname, ' ')) != NULL) + *ptr = '\0'; + if((ptr = strrchr(procname, '/')) != NULL) + ptr++; + else + ptr = procname; + + /* + * print out what we currently know + */ + printf("%c %5d %5d %5d %6lu %6lu %4.1f %s ", + psinfo.pr_lwp.pr_sname, + psinfo.pr_euid, + psinfo.pr_pid, + psinfo.pr_ppid, + psinfo.pr_size, + psinfo.pr_rssize, + ((float)(psinfo.pr_pctcpu) / 0x8000 * 100.0), + ptr + ); + free(procname); + + /* + * and now for the command line stuff + */ + + args_addr = psinfo.pr_argv; + args_count = psinfo.pr_argc; + args_vecs = malloc(args_count * sizeof(uintptr_t)); + + if(psinfo.pr_dmodel == PR_MODEL_NATIVE) { + /* this process matches target process */ + pread(as_fd,args_vecs, args_count * sizeof(uintptr_t), + args_addr); + } else { + /* this process is 64bit, target process is 32 bit*/ + caddr32_t *args_vecs32 = (caddr32_t *)args_vecs; + pread(as_fd,args_vecs32,args_count * sizeof(caddr32_t), + args_addr); + for (i=args_count-1;i>=0;--i) + args_vecs[i]=args_vecs32[i]; + } + + /* + * now read in the args - if what we read in fills buffer + * resize buffer and reread that bit again + */ + argslen=ARGS; + args=malloc(argslen+1); + for(i=0;i<args_count;i++) { + memset(args,'\0',argslen+1); + if(pread(as_fd, args, argslen, args_vecs[i]) <= 0) { + break; + } + args[argslen]='\0'; + if(strlen(args) == argslen){ + argslen += ARGS; + args = realloc(args, argslen + 1); + i--; + continue; + } + printf(" %s", args); + } + free(args_vecs); + free(args); + close(as_fd); + printf("\n"); + } + + (void) closedir(procdir); + + return (0); +} + +/*----------------------------------------------------------------------------*/ + +void usage() { + printf("%s: Help output\n\n", szProg); + printf("If this program is given any arguments, this help is displayed.\n"); + printf("This command is used to print out the full command line for all\n"); + printf("running processes because /usr/bin/ps is limited to 80 chars and\n"); + printf("/usr/ucb/ps can merge columns together.\n\n"); + printf("Columns are:\n"); + printf("\tS - State of process - see 'ps' man page\n"); + printf("\tUID - UID of the process owner\n"); + printf("\tPID - PID of the process\n"); + printf("\tPPID - PID of the parent process\n"); + printf("\tVSZ - Virtual memory usage (kilobytes)\n"); + printf("\tRSS - Real memory usage (kilobytes)\n"); + printf("\t%%CPU - CPU usage\n"); + printf("\tCOMMAND - Command being run\n"); + printf("\tARGS - Full command line with arguments\n"); + return; +} |