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author | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
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committer | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
commit | 008d0be72b2f160382c6e880765e96b64a050c65 (patch) | |
tree | 36f48a98a3815a408e2ce1693dd182af90f80305 /release/src/router/busybox/libbb/procps.c | |
parent | 611becfb8726c60cb060368541ad98191d4532f5 (diff) | |
download | tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.gz tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.bz2 |
imported original firmware WRT54GL_v4.30.11_11_US
Diffstat (limited to 'release/src/router/busybox/libbb/procps.c')
-rw-r--r-- | release/src/router/busybox/libbb/procps.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/release/src/router/busybox/libbb/procps.c b/release/src/router/busybox/libbb/procps.c new file mode 100644 index 00000000..44103fae --- /dev/null +++ b/release/src/router/busybox/libbb/procps.c @@ -0,0 +1,152 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright 1998 by Albert Cahalan; all rights reserved. + * Copyright (C) 2002 by Vladimir Oleynik <dzo@simtreas.ru> + * GNU Library General Public License Version 2, or any later version + * + */ + +#include <dirent.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include <asm/page.h> + +#include "libbb.h" + +extern procps_status_t * procps_scan(int save_user_arg0 +#ifdef CONFIG_SELINUX + , int use_selinux , security_id_t *sid +#endif + ) +{ + static DIR *dir; + struct dirent *entry; + static procps_status_t ret_status; + char *name; + int n; + char status[32]; + char buf[1024]; + FILE *fp; + procps_status_t curstatus; + int pid; + long tasknice; + struct stat sb; + + if (!dir) { + dir = opendir("/proc"); + if(!dir) + bb_error_msg_and_die("Can't open /proc"); + } + for(;;) { + if((entry = readdir(dir)) == NULL) { + closedir(dir); + dir = 0; + return 0; + } + name = entry->d_name; + if (!(*name >= '0' && *name <= '9')) + continue; + + memset(&curstatus, 0, sizeof(procps_status_t)); + pid = atoi(name); + curstatus.pid = pid; + + sprintf(status, "/proc/%d/stat", pid); + if((fp = fopen(status, "r")) == NULL) + continue; +#ifdef CONFIG_SELINUX + if(use_selinux) + { + if(fstat_secure(fileno(fp), &sb, sid)) + continue; + } + else +#endif + if(fstat(fileno(fp), &sb)) + continue; + my_getpwuid(curstatus.user, sb.st_uid); + name = fgets(buf, sizeof(buf), fp); + fclose(fp); + if(name == NULL) + continue; + name = strrchr(buf, ')'); /* split into "PID (cmd" and "<rest>" */ + if(name == 0 || name[1] != ' ') + continue; + *name = 0; + sscanf(buf, "%*s (%15c", curstatus.short_cmd); + n = sscanf(name+2, + "%c %d " + "%*s %*s %*s %*s " /* pgrp, session, tty, tpgid */ + "%*s %*s %*s %*s %*s " /* flags, min_flt, cmin_flt, maj_flt, cmaj_flt */ +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + "%lu %lu " +#else + "%*s %*s " +#endif + "%*s %*s %*s " /* cutime, cstime, priority */ + "%ld " + "%*s %*s %*s " /* timeout, it_real_value, start_time */ + "%*s " /* vsize */ + "%ld", + curstatus.state, &curstatus.ppid, +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + &curstatus.utime, &curstatus.stime, +#endif + &tasknice, + &curstatus.rss); +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + if(n != 6) +#else + if(n != 4) +#endif + continue; + + if (curstatus.rss == 0 && curstatus.state[0] != 'Z') + curstatus.state[1] = 'W'; + else + curstatus.state[1] = ' '; + if (tasknice < 0) + curstatus.state[2] = '<'; + else if (tasknice > 0) + curstatus.state[2] = 'N'; + else + curstatus.state[2] = ' '; + + curstatus.rss <<= (PAGE_SHIFT - 10); /* 2**10 = 1kb */ + + if(save_user_arg0) { + sprintf(status, "/proc/%d/cmdline", pid); + if((fp = fopen(status, "r")) == NULL) + continue; + if((n=fread(buf, 1, sizeof(buf)-1, fp)) > 0) { + if(buf[n-1]=='\n') + buf[--n] = 0; + name = buf; + while(n) { + if(((unsigned char)*name) < ' ') + *name = ' '; + name++; + n--; + } + *name = 0; + if(buf[0]) + curstatus.cmd = strdup(buf); + /* if NULL it work true also */ + } + fclose(fp); + } + return memcpy(&ret_status, &curstatus, sizeof(procps_status_t)); + } +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ |