1 | /*
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2 | * ipcs.c -- provides information on allocated ipc resources.
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3 | *
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4 | * 01 Sept 2004 - Rodney Radford <rradford@mindspring.com>
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5 | * Adapted for busybox from util-linux-2.12a.
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6 | *
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7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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8 | */
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9 |
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10 | #include <stdio.h>
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11 | #include <stdlib.h>
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12 | #include <getopt.h>
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13 | #include <errno.h>
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14 | #include <time.h>
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15 | #include <pwd.h>
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16 | #include <grp.h>
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17 |
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18 | /* X/OPEN tells us to use <sys/{types,ipc,sem}.h> for semctl() */
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19 | /* X/OPEN tells us to use <sys/{types,ipc,msg}.h> for msgctl() */
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20 | /* X/OPEN tells us to use <sys/{types,ipc,shm}.h> for shmctl() */
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21 | #include <sys/types.h>
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22 | #include <sys/ipc.h>
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23 | #include <sys/sem.h>
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24 | #include <sys/msg.h>
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25 | #include <sys/shm.h>
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26 |
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27 | #include "busybox.h"
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28 |
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29 | /*-------------------------------------------------------------------*/
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30 | /* SHM_DEST and SHM_LOCKED are defined in kernel headers,
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31 | but inside #ifdef __KERNEL__ ... #endif */
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32 | #ifndef SHM_DEST
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33 | /* shm_mode upper byte flags */
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34 | #define SHM_DEST 01000 /* segment will be destroyed on last detach */
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35 | #define SHM_LOCKED 02000 /* segment will not be swapped */
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36 | #endif
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37 |
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38 | /* For older kernels the same holds for the defines below */
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39 | #ifndef MSG_STAT
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40 | #define MSG_STAT 11
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41 | #define MSG_INFO 12
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42 | #endif
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43 |
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44 | #ifndef SHM_STAT
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45 | #define SHM_STAT 13
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46 | #define SHM_INFO 14
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47 | struct shm_info {
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48 | int used_ids;
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49 | ulong shm_tot; /* total allocated shm */
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50 | ulong shm_rss; /* total resident shm */
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51 | ulong shm_swp; /* total swapped shm */
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52 | ulong swap_attempts;
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53 | ulong swap_successes;
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54 | };
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55 | #endif
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56 |
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57 | #ifndef SEM_STAT
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58 | #define SEM_STAT 18
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59 | #define SEM_INFO 19
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60 | #endif
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61 |
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62 | /* Some versions of libc only define IPC_INFO when __USE_GNU is defined. */
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63 | #ifndef IPC_INFO
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64 | #define IPC_INFO 3
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65 | #endif
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66 | /*-------------------------------------------------------------------*/
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67 |
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68 | /* The last arg of semctl is a union semun, but where is it defined?
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69 | X/OPEN tells us to define it ourselves, but until recently
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70 | Linux include files would also define it. */
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71 | #if defined (__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED)
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72 | /* union semun is defined by including <sys/sem.h> */
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73 | #else
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74 | /* according to X/OPEN we have to define it ourselves */
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75 | union semun {
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76 | int val;
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77 | struct semid_ds *buf;
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78 | unsigned short int *array;
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79 | struct seminfo *__buf;
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80 | };
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81 | #endif
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82 |
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83 | /* X/OPEN (Jan 1987) does not define fields key, seq in struct ipc_perm;
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84 | libc 4/5 does not mention struct ipc_term at all, but includes
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85 | <linux/ipc.h>, which defines a struct ipc_perm with such fields.
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86 | glibc-1.09 has no support for sysv ipc.
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87 | glibc 2 uses __key, __seq */
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88 | #if defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
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89 | #define KEY __key
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90 | #else
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91 | #define KEY key
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92 | #endif
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93 |
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94 | #define LIMITS 1
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95 | #define STATUS 2
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96 | #define CREATOR 3
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97 | #define TIME 4
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98 | #define PID 5
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99 |
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100 |
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101 | static void print_perms (int id, struct ipc_perm *ipcp) {
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102 | struct passwd *pw;
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103 | struct group *gr;
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104 |
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105 | bb_printf ("%-10d %-10o", id, ipcp->mode & 0777);
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106 |
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107 | if ((pw = getpwuid(ipcp->cuid)))
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108 | bb_printf(" %-10s", pw->pw_name);
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109 | else
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110 | bb_printf(" %-10d", ipcp->cuid);
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111 | if ((gr = getgrgid(ipcp->cgid)))
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112 | bb_printf(" %-10s", gr->gr_name);
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113 | else
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114 | bb_printf(" %-10d", ipcp->cgid);
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115 |
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116 | if ((pw = getpwuid(ipcp->uid)))
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117 | bb_printf(" %-10s", pw->pw_name);
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118 | else
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119 | bb_printf(" %-10d", ipcp->uid);
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120 | if ((gr = getgrgid(ipcp->gid)))
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121 | bb_printf(" %-10s\n", gr->gr_name);
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122 | else
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123 | bb_printf(" %-10d\n", ipcp->gid);
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124 | }
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125 |
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126 |
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127 | static void do_shm (char format)
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128 | {
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129 | int maxid, shmid, id;
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130 | struct shmid_ds shmseg;
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131 | struct shm_info shm_info;
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132 | struct shminfo shminfo;
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133 | struct ipc_perm *ipcp = &shmseg.shm_perm;
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134 | struct passwd *pw;
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135 |
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136 | maxid = shmctl (0, SHM_INFO, (struct shmid_ds *) (void *) &shm_info);
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137 | if (maxid < 0) {
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138 | bb_printf ("kernel not configured for shared memory\n");
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139 | return;
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140 | }
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141 |
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142 | switch (format) {
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143 | case LIMITS:
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144 | bb_printf ("------ Shared Memory Limits --------\n");
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145 | if ((shmctl (0, IPC_INFO, (struct shmid_ds *) (void *) &shminfo)) < 0 )
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146 | return;
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147 | /* glibc 2.1.3 and all earlier libc's have ints as fields
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148 | of struct shminfo; glibc 2.1.91 has unsigned long; ach */
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149 | bb_printf ("max number of segments = %lu\n"
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150 | "max seg size (kbytes) = %lu\n"
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151 | "max total shared memory (pages) = %lu\n"
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152 | "min seg size (bytes) = %lu\n",
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153 | (unsigned long) shminfo.shmmni,
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154 | (unsigned long) (shminfo.shmmax >> 10),
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155 | (unsigned long) shminfo.shmall,
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156 | (unsigned long) shminfo.shmmin);
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157 | return;
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158 |
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159 | case STATUS:
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160 | bb_printf ("------ Shared Memory Status --------\n"
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161 | "segments allocated %d\n"
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162 | "pages allocated %ld\n"
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163 | "pages resident %ld\n"
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164 | "pages swapped %ld\n"
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165 | "Swap performance: %ld attempts\t %ld successes\n",
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166 | shm_info.used_ids,
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167 | shm_info.shm_tot,
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168 | shm_info.shm_rss,
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169 | shm_info.shm_swp,
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170 | shm_info.swap_attempts, shm_info.swap_successes);
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171 | return;
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172 |
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173 | case CREATOR:
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174 | bb_printf ("------ Shared Memory Segment Creators/Owners --------\n"
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175 | "%-10s %-10s %-10s %-10s %-10s %-10s\n",
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176 | "shmid","perms","cuid","cgid","uid","gid");
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177 | break;
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178 |
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179 | case TIME:
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180 | bb_printf ("------ Shared Memory Attach/Detach/Change Times --------\n"
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181 | "%-10s %-10s %-20s %-20s %-20s\n",
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182 | "shmid","owner","attached","detached","changed");
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183 | break;
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184 |
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185 | case PID:
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186 | bb_printf ("------ Shared Memory Creator/Last-op --------\n"
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187 | "%-10s %-10s %-10s %-10s\n",
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188 | "shmid","owner","cpid","lpid");
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189 | break;
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190 |
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191 | default:
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192 | bb_printf ("------ Shared Memory Segments --------\n"
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193 | "%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n",
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194 | "key","shmid","owner","perms","bytes","nattch","status");
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195 | break;
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196 | }
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197 |
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198 | for (id = 0; id <= maxid; id++) {
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199 | shmid = shmctl (id, SHM_STAT, &shmseg);
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200 | if (shmid < 0)
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201 | continue;
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202 | if (format == CREATOR) {
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203 | print_perms (shmid, ipcp);
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204 | continue;
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205 | }
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206 | pw = getpwuid(ipcp->uid);
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207 | switch (format) {
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208 | case TIME:
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209 | if (pw)
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210 | bb_printf ("%-10d %-10.10s", shmid, pw->pw_name);
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211 | else
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212 | bb_printf ("%-10d %-10d", shmid, ipcp->uid);
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213 | /* ctime uses static buffer: use separate calls */
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214 | bb_printf(" %-20.16s", shmseg.shm_atime
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215 | ? ctime(&shmseg.shm_atime) + 4 : "Not set");
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216 | bb_printf(" %-20.16s", shmseg.shm_dtime
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217 | ? ctime(&shmseg.shm_dtime) + 4 : "Not set");
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218 | bb_printf(" %-20.16s\n", shmseg.shm_ctime
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219 | ? ctime(&shmseg.shm_ctime) + 4 : "Not set");
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220 | break;
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221 | case PID:
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222 | if (pw)
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223 | bb_printf ("%-10d %-10.10s", shmid, pw->pw_name);
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224 | else
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225 | bb_printf ("%-10d %-10d", shmid, ipcp->uid);
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226 | bb_printf (" %-10d %-10d\n",
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227 | shmseg.shm_cpid, shmseg.shm_lpid);
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228 | break;
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229 |
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230 | default:
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231 | bb_printf("0x%08x ",ipcp->KEY );
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232 | if (pw)
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233 | bb_printf ("%-10d %-10.10s", shmid, pw->pw_name);
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234 | else
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235 | bb_printf ("%-10d %-10d", shmid, ipcp->uid);
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236 | bb_printf ("%-10o %-10lu %-10ld %-6s %-6s\n",
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237 | ipcp->mode & 0777,
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238 | /*
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239 | * earlier: int, Austin has size_t
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240 | */
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241 | (unsigned long) shmseg.shm_segsz,
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242 | /*
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243 | * glibc-2.1.3 and earlier has unsigned short;
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244 | * Austin has shmatt_t
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245 | */
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246 | (long) shmseg.shm_nattch,
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247 | ipcp->mode & SHM_DEST ? "dest" : " ",
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248 | ipcp->mode & SHM_LOCKED ? "locked" : " ");
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249 | break;
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250 | }
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251 | }
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252 | return;
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253 | }
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254 |
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255 |
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256 | static void do_sem (char format)
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257 | {
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258 | int maxid, semid, id;
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259 | struct semid_ds semary;
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260 | struct seminfo seminfo;
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261 | struct ipc_perm *ipcp = &semary.sem_perm;
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262 | struct passwd *pw;
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263 | union semun arg;
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264 |
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265 | arg.array = (ushort *) (void *) &seminfo;
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266 | maxid = semctl (0, 0, SEM_INFO, arg);
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267 | if (maxid < 0) {
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268 | bb_printf ("kernel not configured for semaphores\n");
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269 | return;
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270 | }
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271 |
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272 | switch (format) {
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273 | case LIMITS:
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274 | bb_printf ("------ Semaphore Limits --------\n");
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275 | arg.array = (ushort *) (void *) &seminfo; /* damn union */
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276 | if ((semctl (0, 0, IPC_INFO, arg)) < 0 )
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277 | return;
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278 | bb_printf ("max number of arrays = %d\n"
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279 | "max semaphores per array = %d\n"
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280 | "max semaphores system wide = %d\n"
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281 | "max ops per semop call = %d\n"
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282 | "semaphore max value = %d\n",
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283 | seminfo.semmni,
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284 | seminfo.semmsl,
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285 | seminfo.semmns,
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286 | seminfo.semopm,
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287 | seminfo.semvmx);
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288 | return;
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289 |
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290 | case STATUS:
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291 | bb_printf ("------ Semaphore Status --------\n"
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292 | "used arrays = %d\n"
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293 | "allocated semaphores = %d\n",
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294 | seminfo.semusz,
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295 | seminfo.semaem);
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296 | return;
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297 |
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298 | case CREATOR:
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299 | bb_printf ("------ Semaphore Arrays Creators/Owners --------\n"
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300 | "%-10s %-10s %-10s %-10s %-10s %-10s\n",
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301 | "semid","perms","cuid","cgid","uid","gid");
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302 | break;
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303 |
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304 | case TIME:
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305 | bb_printf ("------ Shared Memory Operation/Change Times --------\n"
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306 | "%-8s %-10s %-26.24s %-26.24s\n",
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307 | "shmid","owner","last-op","last-changed");
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308 | break;
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309 |
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310 | case PID:
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311 | break;
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312 |
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313 | default:
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314 | bb_printf ("------ Semaphore Arrays --------\n"
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315 | "%-10s %-10s %-10s %-10s %-10s\n",
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316 | "key","semid","owner","perms","nsems");
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317 | break;
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318 | }
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319 |
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320 | for (id = 0; id <= maxid; id++) {
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321 | arg.buf = (struct semid_ds *) &semary;
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322 | semid = semctl (id, 0, SEM_STAT, arg);
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323 | if (semid < 0)
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324 | continue;
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325 | if (format == CREATOR) {
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326 | print_perms (semid, ipcp);
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327 | continue;
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328 | }
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329 | pw = getpwuid(ipcp->uid);
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330 | switch (format) {
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331 | case TIME:
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332 | if (pw)
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333 | bb_printf ("%-8d %-10.10s", semid, pw->pw_name);
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334 | else
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335 | bb_printf ("%-8d %-10d", semid, ipcp->uid);
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336 | bb_printf (" %-26.24s", semary.sem_otime
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337 | ? ctime(&semary.sem_otime) : "Not set");
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338 | bb_printf (" %-26.24s\n", semary.sem_ctime
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339 | ? ctime(&semary.sem_ctime) : "Not set");
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340 | break;
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341 | case PID:
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342 | break;
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343 |
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344 | default:
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345 | bb_printf("0x%08x ", ipcp->KEY);
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346 | if (pw)
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347 | bb_printf ("%-10d %-10.9s", semid, pw->pw_name);
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348 | else
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349 | bb_printf ("%-10d %-9d", semid, ipcp->uid);
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350 | bb_printf ("%-10o %-10ld\n",
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351 | ipcp->mode & 0777,
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352 | /*
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353 | * glibc-2.1.3 and earlier has unsigned short;
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354 | * glibc-2.1.91 has variation between
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355 | * unsigned short and unsigned long
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356 | * Austin prescribes unsigned short.
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357 | */
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358 | (long) semary.sem_nsems);
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359 | break;
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360 | }
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361 | }
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362 | }
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363 |
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364 |
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365 | static void do_msg (char format)
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366 | {
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367 | int maxid, msqid, id;
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368 | struct msqid_ds msgque;
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369 | struct msginfo msginfo;
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370 | struct ipc_perm *ipcp = &msgque.msg_perm;
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371 | struct passwd *pw;
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372 |
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373 | maxid = msgctl (0, MSG_INFO, (struct msqid_ds *) (void *) &msginfo);
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374 | if (maxid < 0) {
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375 | bb_printf ("kernel not configured for message queues\n");
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376 | return;
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377 | }
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378 |
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379 | switch (format) {
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380 | case LIMITS:
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381 | if ((msgctl (0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0 )
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382 | return;
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383 | bb_printf ("------ Messages: Limits --------\n"
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384 | "max queues system wide = %d\n"
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385 | "max size of message (bytes) = %d\n"
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386 | "default max size of queue (bytes) = %d\n",
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387 | msginfo.msgmni,
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388 | msginfo.msgmax,
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389 | msginfo.msgmnb);
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390 | return;
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391 |
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392 | case STATUS:
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393 | bb_printf ("------ Messages: Status --------\n"
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394 | "allocated queues = %d\n"
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395 | "used headers = %d\n"
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396 | "used space = %d bytes\n",
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397 | msginfo.msgpool,
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398 | msginfo.msgmap,
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399 | msginfo.msgtql);
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400 | return;
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401 |
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402 | case CREATOR:
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403 | bb_printf ("------ Message Queues: Creators/Owners --------\n"
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404 | "%-10s %-10s %-10s %-10s %-10s %-10s\n",
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405 | "msqid","perms","cuid","cgid","uid","gid");
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406 | break;
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407 |
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408 | case TIME:
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409 | bb_printf ("------ Message Queues Send/Recv/Change Times --------\n"
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410 | "%-8s %-10s %-20s %-20s %-20s\n",
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411 | "msqid","owner","send","recv","change");
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412 | break;
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413 |
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414 | case PID:
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415 | bb_printf ("------ Message Queues PIDs --------\n"
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416 | "%-10s %-10s %-10s %-10s\n",
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417 | "msqid","owner","lspid","lrpid");
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418 | break;
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419 |
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420 | default:
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421 | bb_printf ("------ Message Queues --------\n"
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422 | "%-10s %-10s %-10s %-10s %-12s %-12s\n",
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423 | "key","msqid","owner","perms","used-bytes","messages");
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424 | break;
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425 | }
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426 |
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427 | for (id = 0; id <= maxid; id++) {
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428 | msqid = msgctl (id, MSG_STAT, &msgque);
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429 | if (msqid < 0)
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430 | continue;
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431 | if (format == CREATOR) {
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432 | print_perms (msqid, ipcp);
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433 | continue;
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434 | }
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435 | pw = getpwuid(ipcp->uid);
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436 | switch (format) {
|
---|
437 | case TIME:
|
---|
438 | if (pw)
|
---|
439 | bb_printf ("%-8d %-10.10s", msqid, pw->pw_name);
|
---|
440 | else
|
---|
441 | bb_printf ("%-8d %-10d", msqid, ipcp->uid);
|
---|
442 | bb_printf (" %-20.16s", msgque.msg_stime
|
---|
443 | ? ctime(&msgque.msg_stime) + 4 : "Not set");
|
---|
444 | bb_printf (" %-20.16s", msgque.msg_rtime
|
---|
445 | ? ctime(&msgque.msg_rtime) + 4 : "Not set");
|
---|
446 | bb_printf (" %-20.16s\n", msgque.msg_ctime
|
---|
447 | ? ctime(&msgque.msg_ctime) + 4 : "Not set");
|
---|
448 | break;
|
---|
449 | case PID:
|
---|
450 | if (pw)
|
---|
451 | bb_printf ("%-8d %-10.10s", msqid, pw->pw_name);
|
---|
452 | else
|
---|
453 | bb_printf ("%-8d %-10d", msqid, ipcp->uid);
|
---|
454 | bb_printf (" %5d %5d\n",
|
---|
455 | msgque.msg_lspid, msgque.msg_lrpid);
|
---|
456 | break;
|
---|
457 |
|
---|
458 | default:
|
---|
459 | bb_printf( "0x%08x ",ipcp->KEY );
|
---|
460 | if (pw)
|
---|
461 | bb_printf ("%-10d %-10.10s", msqid, pw->pw_name);
|
---|
462 | else
|
---|
463 | bb_printf ("%-10d %-10d", msqid, ipcp->uid);
|
---|
464 | bb_printf (" %-10o %-12ld %-12ld\n",
|
---|
465 | ipcp->mode & 0777,
|
---|
466 | /*
|
---|
467 | * glibc-2.1.3 and earlier has unsigned short;
|
---|
468 | * glibc-2.1.91 has variation between
|
---|
469 | * unsigned short, unsigned long
|
---|
470 | * Austin has msgqnum_t
|
---|
471 | */
|
---|
472 | (long) msgque.msg_cbytes,
|
---|
473 | (long) msgque.msg_qnum);
|
---|
474 | break;
|
---|
475 | }
|
---|
476 | }
|
---|
477 | return;
|
---|
478 | }
|
---|
479 |
|
---|
480 |
|
---|
481 | static void print_shm (int shmid)
|
---|
482 | {
|
---|
483 | struct shmid_ds shmds;
|
---|
484 | struct ipc_perm *ipcp = &shmds.shm_perm;
|
---|
485 |
|
---|
486 | if (shmctl (shmid, IPC_STAT, &shmds) == -1) {
|
---|
487 | perror ("shmctl ");
|
---|
488 | return;
|
---|
489 | }
|
---|
490 |
|
---|
491 | bb_printf ("\nShared memory Segment shmid=%d\n"
|
---|
492 | "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n"
|
---|
493 | "mode=%#o\taccess_perms=%#o\n"
|
---|
494 | "bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n"
|
---|
495 | "att_time=%-26.24s\n"
|
---|
496 | "det_time=%-26.24s\n"
|
---|
497 | "change_time=%-26.24s\n"
|
---|
498 | "\n",
|
---|
499 | shmid,
|
---|
500 | ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid,
|
---|
501 | ipcp->mode, ipcp->mode & 0777,
|
---|
502 | (long) shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid,
|
---|
503 | (long) shmds.shm_nattch,
|
---|
504 | shmds.shm_atime ? ctime (&shmds.shm_atime) : "Not set",
|
---|
505 | shmds.shm_dtime ? ctime (&shmds.shm_dtime) : "Not set",
|
---|
506 | ctime (&shmds.shm_ctime));
|
---|
507 | return;
|
---|
508 | }
|
---|
509 |
|
---|
510 |
|
---|
511 | static void print_msg (int msqid)
|
---|
512 | {
|
---|
513 | struct msqid_ds buf;
|
---|
514 | struct ipc_perm *ipcp = &buf.msg_perm;
|
---|
515 |
|
---|
516 | if (msgctl (msqid, IPC_STAT, &buf) == -1) {
|
---|
517 | perror ("msgctl ");
|
---|
518 | return;
|
---|
519 | }
|
---|
520 |
|
---|
521 | bb_printf ("\nMessage Queue msqid=%d\n"
|
---|
522 | "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n"
|
---|
523 | "cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n"
|
---|
524 | "send_time=%-26.24s\n"
|
---|
525 | "rcv_time=%-26.24s\n"
|
---|
526 | "change_time=%-26.24s\n"
|
---|
527 | "\n",
|
---|
528 | msqid,
|
---|
529 | ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode,
|
---|
530 | /*
|
---|
531 | * glibc-2.1.3 and earlier has unsigned short;
|
---|
532 | * glibc-2.1.91 has variation between
|
---|
533 | * unsigned short, unsigned long
|
---|
534 | * Austin has msgqnum_t (for msg_qbytes)
|
---|
535 | */
|
---|
536 | (long) buf.msg_cbytes, (long) buf.msg_qbytes,
|
---|
537 | (long) buf.msg_qnum, buf.msg_lspid, buf.msg_lrpid,
|
---|
538 | buf.msg_stime ? ctime (&buf.msg_stime) : "Not set",
|
---|
539 | buf.msg_rtime ? ctime (&buf.msg_rtime) : "Not set",
|
---|
540 | buf.msg_ctime ? ctime (&buf.msg_ctime) : "Not set");
|
---|
541 | return;
|
---|
542 | }
|
---|
543 |
|
---|
544 | static void print_sem (int semid)
|
---|
545 | {
|
---|
546 | struct semid_ds semds;
|
---|
547 | struct ipc_perm *ipcp = &semds.sem_perm;
|
---|
548 | union semun arg;
|
---|
549 | unsigned int i;
|
---|
550 |
|
---|
551 | arg.buf = &semds;
|
---|
552 | if (semctl (semid, 0, IPC_STAT, arg) < 0) {
|
---|
553 | perror ("semctl ");
|
---|
554 | return;
|
---|
555 | }
|
---|
556 |
|
---|
557 | bb_printf ("\nSemaphore Array semid=%d\n"
|
---|
558 | "uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n"
|
---|
559 | "mode=%#o, access_perms=%#o\n"
|
---|
560 | "nsems = %ld\n"
|
---|
561 | "otime = %-26.24s\n"
|
---|
562 | "ctime = %-26.24s\n"
|
---|
563 | "%-10s %-10s %-10s %-10s %-10s\n",
|
---|
564 | semid,
|
---|
565 | ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid,
|
---|
566 | ipcp->mode, ipcp->mode & 0777,
|
---|
567 | (long) semds.sem_nsems,
|
---|
568 | semds.sem_otime ? ctime (&semds.sem_otime) : "Not set",
|
---|
569 | ctime (&semds.sem_ctime),
|
---|
570 | "semnum","value","ncount","zcount","pid");
|
---|
571 |
|
---|
572 | arg.val = 0;
|
---|
573 | for (i=0; i < semds.sem_nsems; i++) {
|
---|
574 | int val, ncnt, zcnt, pid;
|
---|
575 | val = semctl (semid, i, GETVAL, arg);
|
---|
576 | ncnt = semctl (semid, i, GETNCNT, arg);
|
---|
577 | zcnt = semctl (semid, i, GETZCNT, arg);
|
---|
578 | pid = semctl (semid, i, GETPID, arg);
|
---|
579 | if (val < 0 || ncnt < 0 || zcnt < 0 || pid < 0) {
|
---|
580 | perror ("semctl ");
|
---|
581 | bb_fflush_stdout_and_exit (1);
|
---|
582 | }
|
---|
583 | bb_printf ("%-10d %-10d %-10d %-10d %-10d\n",
|
---|
584 | i, val, ncnt, zcnt, pid);
|
---|
585 | }
|
---|
586 | bb_printf ("\n");
|
---|
587 | return;
|
---|
588 | }
|
---|
589 |
|
---|
590 | int ipcs_main (int argc, char **argv) {
|
---|
591 | int opt, msg = 0, sem = 0, shm = 0, id=0, print=0;
|
---|
592 | char format = 0;
|
---|
593 | char options[] = "atclupsmqi:ih?";
|
---|
594 |
|
---|
595 | while ((opt = getopt (argc, argv, options)) != -1) {
|
---|
596 | switch (opt) {
|
---|
597 | case 'i':
|
---|
598 | id = atoi (optarg);
|
---|
599 | print = 1;
|
---|
600 | break;
|
---|
601 | case 'a':
|
---|
602 | msg = shm = sem = 1;
|
---|
603 | break;
|
---|
604 | case 'q':
|
---|
605 | msg = 1;
|
---|
606 | break;
|
---|
607 | case 's':
|
---|
608 | sem = 1;
|
---|
609 | break;
|
---|
610 | case 'm':
|
---|
611 | shm = 1;
|
---|
612 | break;
|
---|
613 | case 't':
|
---|
614 | format = TIME;
|
---|
615 | break;
|
---|
616 | case 'c':
|
---|
617 | format = CREATOR;
|
---|
618 | break;
|
---|
619 | case 'p':
|
---|
620 | format = PID;
|
---|
621 | break;
|
---|
622 | case 'l':
|
---|
623 | format = LIMITS;
|
---|
624 | break;
|
---|
625 | case 'u':
|
---|
626 | format = STATUS;
|
---|
627 | break;
|
---|
628 | case 'h':
|
---|
629 | case '?':
|
---|
630 | bb_show_usage();
|
---|
631 | bb_fflush_stdout_and_exit (0);
|
---|
632 | }
|
---|
633 | }
|
---|
634 |
|
---|
635 | if (print) {
|
---|
636 | if (shm) {
|
---|
637 | print_shm (id);
|
---|
638 | bb_fflush_stdout_and_exit (0);
|
---|
639 | }
|
---|
640 | if (sem) {
|
---|
641 | print_sem (id);
|
---|
642 | bb_fflush_stdout_and_exit (0);
|
---|
643 | }
|
---|
644 | if (msg) {
|
---|
645 | print_msg (id);
|
---|
646 | bb_fflush_stdout_and_exit (0);
|
---|
647 | }
|
---|
648 | bb_show_usage();
|
---|
649 | bb_fflush_stdout_and_exit (0);
|
---|
650 | }
|
---|
651 |
|
---|
652 | if ( !shm && !msg && !sem)
|
---|
653 | msg = sem = shm = 1;
|
---|
654 | bb_printf ("\n");
|
---|
655 |
|
---|
656 | if (shm) {
|
---|
657 | do_shm (format);
|
---|
658 | bb_printf ("\n");
|
---|
659 | }
|
---|
660 | if (sem) {
|
---|
661 | do_sem (format);
|
---|
662 | bb_printf ("\n");
|
---|
663 | }
|
---|
664 | if (msg) {
|
---|
665 | do_msg (format);
|
---|
666 | bb_printf ("\n");
|
---|
667 | }
|
---|
668 | return 0;
|
---|
669 | }
|
---|
670 |
|
---|