/* vi: set sw=4 ts=4: */ /* * Mini free implementation for busybox * * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> * * Licensed under the GPL version 2, see the file LICENSE in this tarball. */ /* getopt not needed */ #include "libbb.h" int free_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int free_main(int argc, char **argv) { struct sysinfo info; sysinfo(&info); /* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */ if (info.mem_unit == 0) { info.mem_unit=1; } if (info.mem_unit == 1) { info.mem_unit=1024; /* TODO: Make all this stuff not overflow when mem >= 4 Gib */ info.totalram/=info.mem_unit; info.freeram/=info.mem_unit; #ifndef __uClinux__ info.totalswap/=info.mem_unit; info.freeswap/=info.mem_unit; #endif info.sharedram/=info.mem_unit; info.bufferram/=info.mem_unit; } else { info.mem_unit/=1024; /* TODO: Make all this stuff not overflow when mem >= 4 Gib */ info.totalram*=info.mem_unit; info.freeram*=info.mem_unit; #ifndef __uClinux__ info.totalswap*=info.mem_unit; info.freeswap*=info.mem_unit; #endif info.sharedram*=info.mem_unit; info.bufferram*=info.mem_unit; } if (argc > 1 && *argv[1] == '-') bb_show_usage(); printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free", "shared", "buffers"); printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram, info.totalram-info.freeram, info.freeram, info.sharedram, info.bufferram); #ifndef __uClinux__ printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap, info.totalswap-info.freeswap, info.freeswap); printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap, (info.totalram-info.freeram)+(info.totalswap-info.freeswap), info.freeram+info.freeswap); #endif return EXIT_SUCCESS; }