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Make fixes and improvements

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- Invent iso8601us() for faster timestamps
- Improve --strace descriptions of sigset_t
- Rebuild the Landlock Make bootstrap binary
- Introduce MODE=sysv for non-Windows builds
- Permit OFD fcntl() locks under pledge(flock)
- redbean can now protect your kernel from ddos
- Have vfork() fallback to sys_fork() not fork()
- Change kmalloc() to not die when out of memory
- Improve documentation for some termios functions
- Rewrite putenv() and friends to conform to POSIX
- Fix linenoise + strace verbosity issue on Windows
- Fix regressions in our ability to show backtraces
- Change redbean SetHeader() to no-op if value is nil
- Improve fcntl() so SQLite locks work in non-WAL mode
- Remove some unnecessary work during fork() on Windows
- Create redbean-based SSL reverse proxy for IPv4 TurfWar
- Fix ape/apeinstall.sh warning when using non-bash shells
- Add ProgramTrustedIp(), and IsTrustedIp() APIs to redbean
- Support $PWD, $UID, $GID, and $EUID in command interpreter
- Introduce experimental JTqFpD APE prefix for non-Windows builds
- Invent blackhole daemon for firewalling IP addresses via UNIX named socket
- Add ProgramTokenBucket(), AcquireToken(), and CountTokens() APIs to redbean
This commit is contained in:
Justine Tunney 2022-10-17 11:02:04 -07:00
parent 648bf6555c
commit f7ff77d865
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
209 changed files with 3818 additions and 998 deletions
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45
libc/runtime/cocmd.c
View file

@ -25,6 +25,7 @@
#include "libc/fmt/conv.h"
#include "libc/fmt/itoa.h"
#include "libc/fmt/magnumstrs.internal.h"
#include "libc/intrin/_getenv.internal.h"
#include "libc/intrin/bits.h"
#include "libc/intrin/weaken.h"
#include "libc/macros.internal.h"
@ -55,11 +56,6 @@
#define TOMBSTONE ((char *)-1)
#define READ24(s) READ32LE(s "\0")
struct Env {
char *s;
int i;
};
static char *p;
static char *q;
static char *r;
@ -71,7 +67,7 @@ static char *assign;
static char var[32];
static int lastchild;
static int exitstatus;
static char *envs[3000];
static char *envs[500];
static char *args[3000];
static const char *prog;
static char errbuf[512];
@ -148,27 +144,9 @@ static int GetSignalByName(const char *s) {
return 0;
}
static struct Env GetEnv(char **p, const char *k) {
int i, j;
for (i = 0; p[i]; ++i) {
for (j = 0;; ++j) {
if (!k[j] || k[j] == '=') {
if (p[i][j] == '=') {
return (struct Env){p[i] + j + 1, i};
}
break;
}
if (toupper(k[j] & 255) != toupper(p[i][j] & 255)) {
break;
}
}
}
return (struct Env){0, i};
}
static void PutEnv(char **p, const char *kv) {
struct Env e;
e = GetEnv(p, kv);
e = _getenv(p, kv);
p[e.i] = kv;
if (!e.s) p[e.i + 1] = 0;
}
@ -271,7 +249,7 @@ static int Read(void) {
static int Cd(void) {
const char *s;
if ((s = n > 1 ? args[1] : GetEnv(envs, "HOME").s)) {
if ((s = n > 1 ? args[1] : _getenv(envs, "HOME").s)) {
if (!chdir(s)) {
return 0;
} else {
@ -489,14 +467,27 @@ static const char *IntToStr(int x) {
}
static const char *GetVar(const char *key) {
static char vbuf[PATH_MAX];
if (key[0] == '$' && !key[1]) {
return IntToStr(getpid());
} else if (key[0] == '!' && !key[1]) {
return IntToStr(lastchild);
} else if (key[0] == '?' && !key[1]) {
return IntToStr(exitstatus);
} else if (!strcmp(key, "PWD")) {
_npassert(getcwd(vbuf, sizeof(vbuf)));
return vbuf;
} else if (!strcmp(key, "UID")) {
FormatInt32(vbuf, getuid());
return vbuf;
} else if (!strcmp(key, "GID")) {
FormatInt32(vbuf, getgid());
return vbuf;
} else if (!strcmp(key, "EUID")) {
FormatInt32(vbuf, geteuid());
return vbuf;
} else {
return GetEnv(envs, key).s;
return _getenv(envs, key).s;
}
}