mirror of
https://github.com/jart/cosmopolitan.git
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0ad609268f
- Polyfill open() w/ O_CLOEXEC on RHEL5 - Remove old workaround from rmdir() on the New Technology - preadv() and pwritev() are now smarter about demodernization - preadv() and pwritev() are now available on the New Technology
95 lines
4.1 KiB
C
95 lines
4.1 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/log/log.h"
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#include "libc/macros.internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/auxv.h"
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const struct AuxiliaryValue {
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const char *fmt;
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long *id;
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const char *name;
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const char *description;
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} kAuxiliaryValues[] = {
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{"%012lx", &AT_EXECFD, "AT_EXECFD", "file descriptor of program"},
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{"%012lx", &AT_PHDR, "AT_PHDR", "address of elf program headers"},
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{"%012lx", &AT_PHENT, "AT_PHENT", "size of program header entry"},
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{"%012lx", &AT_PHNUM, "AT_PHNUM", "number of program headers"},
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{"%012lx", &AT_PAGESZ, "AT_PAGESZ", "system page size"},
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{"%012lx", &AT_BASE, "AT_BASE", "base address of the program interpreter"},
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{"%012lx", &AT_ENTRY, "AT_ENTRY", "entry address of executable"},
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{"%012lx", &AT_NOTELF, "AT_NOTELF", "set if not an elf"},
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{"%-12d", &AT_UID, "AT_UID", "real user id of thread"},
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{"%-12d", &AT_EUID, "AT_EUID", "effective user id of thread"},
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{"%-12d", &AT_GID, "AT_GID", "real group id of thread"},
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{"%-12d", &AT_EGID, "AT_EGID", "effective group id of thread"},
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{"%-12d", &AT_CLKTCK, "AT_CLKTCK", "frequency of times() counts"},
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{"%012lx", &AT_OSRELDATE, "AT_OSRELDATE",
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"freebsd release number, e.g. 1200086"},
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{"%012lx", &AT_PLATFORM, "AT_PLATFORM",
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"string identifying hardware platform"},
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{"%012lx", &AT_DCACHEBSIZE, "AT_DCACHEBSIZE", "data cache block size"},
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{"%012lx", &AT_ICACHEBSIZE, "AT_ICACHEBSIZE",
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"instruction cache block size"},
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{"%012lx", &AT_UCACHEBSIZE, "AT_UCACHEBSIZE", "unified cache block size"},
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{"%012lx", &AT_SECURE, "AT_SECURE",
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"for set{u,g}id binz & security blankets"},
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{"%-12s", &AT_BASE_PLATFORM, "AT_BASE_PLATFORM",
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"string identifying real platform"},
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{"%012lx", &AT_RANDOM, "AT_RANDOM", "address of sixteen random bytes"},
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{"%-12s", &AT_EXECFN, "AT_EXECFN", "pathname used to execute program"},
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{"%012lx", &AT_SYSINFO_EHDR, "AT_SYSINFO_EHDR",
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"linux virtual dso page address"},
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{"%012lx", &AT_FLAGS, "AT_FLAGS", "unused?"},
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{"%012lx", &AT_HWCAP, "AT_HWCAP", "cpu stuff"},
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{"%012lx", &AT_HWCAP2, "AT_HWCAP2", "more cpu stuff"},
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};
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const struct AuxiliaryValue *DescribeAuxv(unsigned long x) {
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int i;
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for (i = 0; i < ARRAYLEN(kAuxiliaryValues); ++i) {
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if (x == *kAuxiliaryValues[i].id) {
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return kAuxiliaryValues + i;
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}
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}
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return NULL;
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}
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int main(int argc, char *argv[], char **envp) {
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long key;
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unsigned i;
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unsigned long *auxp;
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char fmt[64], **env;
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struct AuxiliaryValue *auxinfo;
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printf("\nArguments:\n");
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for (i = 0; i < __argc; ++i) {
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printf(" ☼ %s\n", argv[i]);
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}
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printf("\nEnvironment:\n");
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for (env = envp; *env; ++env) {
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printf(" ☼ %s\n", *env);
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}
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printf("\nAuxiliary Values:\n");
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for (auxp = __auxv; *auxp; auxp += 2) {
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if ((auxinfo = DescribeAuxv(auxp[0]))) {
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stpcpy(stpcpy(stpcpy(fmt, "%16s[%4ld] = "), auxinfo->fmt), " # %s\n");
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printf(fmt, auxinfo->name, auxp[0], auxp[1], auxinfo->description);
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} else {
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printf("%16s[%4ld] = %012lx\n", "unknown", auxp[0], auxp[1]);
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}
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}
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printf("\nSpecial Directories:\n");
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printf(" ☼ kTmpPath = %`'s\n", kTmpPath);
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printf(" ☼ kNtSystemDirectory = %`'s\n", kNtSystemDirectory);
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printf(" ☼ kNtWindowsDirectory = %`'s\n", kNtWindowsDirectory);
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return 0;
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}
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