Move C code to bin, Makefile, AGPL

8 files changed, 0 insertions, 1113 deletions

diff --git a/home/.bin/bri.c b/home/.bin/bri.c
deleted file mode 100755
index d085814b..00000000
--- a/home/.bin/bri.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#if 0
-set -e
-bin=$(dirname $0)
-cc -Wall -Wextra -pedantic $@ -o $bin/bri $0
-sudo chown root:root $bin/bri
-sudo chmod u+s $bin/bri
-exit
-#endif
-
-// Backlight brightness control.
-
-#include <dirent.h>
-#include <err.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <sysexits.h>
-#include <unistd.h>
-
-static const char *CLASS = "/sys/class/backlight";
-
-int main(int argc, char *argv[]) {
-    int error;
-
-    if (argc < 2) errx(EX_USAGE, "usage: bri N | +... | -...");
-
-    error = chdir(CLASS);
-    if (error) err(EX_IOERR, "%s", CLASS);
-
-    DIR *dir = opendir(".");
-    if (!dir) err(EX_IOERR, "%s", CLASS);
-
-    struct dirent *entry;
-    while (NULL != (errno = 0, entry = readdir(dir))) {
-        if (entry->d_name[0] == '.') continue;
-
-        error = chdir(entry->d_name);
-        if (error) err(EX_IOERR, "%s", entry->d_name);
-        break;
-    }
-    if (!entry) {
-        if (errno) err(EX_IOERR, "%s", CLASS);
-        errx(EX_CONFIG, "empty %s", CLASS);
-    }
-
-    char *value = argv[1];
-
-    if (value[0] == '+' || value[0] == '-') {
-        FILE *actual = fopen("actual_brightness", "r");
-        if (!actual) err(EX_IOERR, "actual_brightness");
-
-        unsigned int brightness;
-        int match = fscanf(actual, "%u", &brightness);
-        if (match == EOF) err(EX_IOERR, "actual_brightness");
-        if (match < 1) err(EX_DATAERR, "actual_brightness");
-
-        size_t count = strnlen(value, 15);
-        if (value[0] == '+') {
-            brightness += 16 * count;
-        } else {
-            brightness -= 16 * count;
-        }
-
-        char buf[15];
-        snprintf(buf, sizeof(buf), "%u", brightness);
-
-        value = buf;
-    }
-
-    FILE *brightness = fopen("brightness", "w");
-    if (!brightness) err(EX_IOERR, "brightness");
-
-    int count = fprintf(brightness, "%s", value);
-    if (count < 0) err(EX_IOERR, "brightness");
-
-    return EX_OK;
-}
diff --git a/home/.bin/dtch.c b/home/.bin/dtch.c
deleted file mode 100755
index a37eeeeb..00000000
--- a/home/.bin/dtch.c
+++ /dev/null
@@ -1,254 +0,0 @@
-#if 0
-set -e
-bin=$(dirname $0)
-cc -Wall -Wextra -pedantic $@ -lutil -o $bin/dtch $0
-ln -f $bin/dtch $bin/atch
-exit
-#endif
-
-// Session attach and detach.
-
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <sys/wait.h>
-#include <sysexits.h>
-#include <termios.h>
-#include <unistd.h>
-
-#if defined __FreeBSD__
-#include <libutil.h>
-#elif defined __linux__
-#include <pty.h>
-#else
-#include <util.h>
-#endif
-
-static struct passwd *getUser(void) {
-    uid_t uid = getuid();
-    struct passwd *user = getpwuid(uid);
-    if (!user) err(EX_OSFILE, "/etc/passwd");
-    return user;
-}
-
-static struct sockaddr_un sockAddr(const char *home, const char *name) {
-    struct sockaddr_un addr = { .sun_family = AF_LOCAL };
-    snprintf(addr.sun_path, sizeof(addr.sun_path), "%s/.dtch/%s", home, name);
-    return addr;
-}
-
-static ssize_t writeAll(int fd, const char *buf, size_t len) {
-    ssize_t writeLen;
-    while (0 < (writeLen = write(fd, buf, len))) {
-        buf += writeLen;
-        len -= writeLen;
-    }
-    return writeLen;
-}
-
-char z;
-struct iovec iov = { .iov_base = &z, .iov_len = 1 };
-
-static ssize_t sendFd(int sock, int fd) {
-    size_t len = CMSG_LEN(sizeof(int));
-    char buf[len];
-    struct msghdr msg = {
-        .msg_iov = &iov,
-        .msg_iovlen = 1,
-        .msg_control = buf,
-        .msg_controllen = len,
-    };
-
-    struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
-    cmsg->cmsg_len = len;
-    cmsg->cmsg_level = SOL_SOCKET;
-    cmsg->cmsg_type = SCM_RIGHTS;
-    *(int *)CMSG_DATA(cmsg) = fd;
-
-    return sendmsg(sock, &msg, 0);
-}
-
-static int recvFd(int sock) {
-    size_t len = CMSG_LEN(sizeof(int));
-    char buf[len];
-    struct msghdr msg = {
-        .msg_iov = &iov,
-        .msg_iovlen = 1,
-        .msg_control = buf,
-        .msg_controllen = len,
-    };
-
-    ssize_t n = recvmsg(sock, &msg, 0);
-    if (n < 0) return -1;
-
-    struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
-    if (!cmsg) { errno = ENOMSG; return -1; }
-    if (cmsg->cmsg_type != SCM_RIGHTS) { errno = EBADMSG; return -1; }
-
-    return *(int *)CMSG_DATA(cmsg);
-}
-
-static struct sockaddr_un addr;
-
-static void unlinkAddr(void) {
-    unlink(addr.sun_path);
-}
-
-static int dtch(int argc, char *argv[]) {
-    int error;
-
-    struct passwd *user = getUser();
-
-    char *name = user->pw_name;
-    char *cmd = user->pw_shell;
-    if (argc > 2) {
-        name = argv[1];
-        cmd = argv[2];
-        argv += 2;
-    } else if (argc > 1) {
-        name = argv[1];
-        argv++;
-    }
-
-    int home = open(user->pw_dir, 0);
-    if (home < 0) err(EX_IOERR, "%s", user->pw_dir);
-    error = mkdirat(home, ".dtch", S_IRWXU);
-    if (error && errno != EEXIST) err(EX_IOERR, "%s/.dtch", user->pw_dir);
-    error = close(home);
-    if (error) err(EX_IOERR, "%s", user->pw_dir);
-
-    int server = socket(PF_LOCAL, SOCK_STREAM, 0);
-    if (server < 0) err(EX_OSERR, "socket");
-
-    addr = sockAddr(user->pw_dir, name);
-    error = bind(server, (struct sockaddr *)&addr, sizeof(addr));
-    if (error) err(EX_IOERR, "%s", addr.sun_path);
-    atexit(unlinkAddr);
-
-    error = chmod(addr.sun_path, 0600);
-    if (error) err(EX_IOERR, "%s", addr.sun_path);
-
-    int master;
-    pid_t pid = forkpty(&master, NULL, NULL, NULL);
-    if (pid < 0) err(EX_OSERR, "forkpty");
-
-    if (!pid) {
-        error = close(server);
-        if (error) warn("close(%d)", server);
-        execvp(cmd, argv);
-        err(EX_OSERR, "%s", cmd);
-    }
-
-    error = listen(server, 0);
-    if (error) err(EX_OSERR, "listen");
-
-    for (;;) {
-        int client = accept(server, NULL, NULL);
-        if (client < 0) err(EX_IOERR, "accept(%d)", server);
-
-        ssize_t len = sendFd(client, master);
-        if (len < 0) warn("sendmsg(%d)", client);
-
-        len = recv(client, &z, sizeof(z), 0);
-        if (len < 0) warn("recv(%d)", client);
-
-        error = close(client);
-        if (error) warn("close(%d)", client);
-
-        pid_t dead = waitpid(pid, NULL, WNOHANG);
-        if (dead < 0) warn("waitpid(%d)", pid);
-        if (dead) exit(EX_OK);
-    }
-}
-
-static struct termios saveTerm;
-
-static void restoreTerm(void) {
-    tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm);
-    printf(
-        "\x1b[?1049l" // rmcup
-        "\x1b\x63\x1b[!p\x1b[?3;4l\x1b[4l\x1b>" // reset
-    );
-}
-
-static int atch(int argc, char *argv[]) {
-    int error;
-
-    struct passwd *user = getUser();
-    char *name = (argc > 1) ? argv[1] : user->pw_name;
-
-    int client = socket(PF_LOCAL, SOCK_STREAM, 0);
-    if (client < 0) err(EX_OSERR, "socket");
-
-    struct sockaddr_un addr = sockAddr(user->pw_dir, name);
-    error = connect(client, (struct sockaddr *)&addr, sizeof(addr));
-    if (error) err(EX_IOERR, "%s", addr.sun_path);
-
-    int master = recvFd(client);
-    if (master < 0) err(EX_IOERR, "recvmsg(%d)", client);
-
-    struct winsize window;
-    error = ioctl(STDERR_FILENO, TIOCGWINSZ, &window);
-    if (error) err(EX_IOERR, "ioctl(%d, TIOCGWINSZ)", STDERR_FILENO);
-
-    error = ioctl(master, TIOCSWINSZ, &window);
-    if (error) err(EX_IOERR, "ioctl(%d, TIOCSWINSZ)", master);
-
-    error = tcgetattr(STDERR_FILENO, &saveTerm);
-    if (error) err(EX_IOERR, "tcgetattr(%d)", STDERR_FILENO);
-    atexit(restoreTerm);
-
-    struct termios raw;
-    cfmakeraw(&raw);
-    error = tcsetattr(STDERR_FILENO, TCSADRAIN, &raw);
-    if (error) err(EX_IOERR, "tcsetattr(%d)", STDERR_FILENO);
-
-    char ctrlL = CTRL('L');
-    ssize_t len = write(master, &ctrlL, 1);
-    if (len < 0) err(EX_IOERR, "write(%d)", master);
-
-    struct pollfd fds[2] = {
-        { .fd = STDIN_FILENO, .events = POLLIN },
-        { .fd = master, .events = POLLIN },
-    };
-
-    while (0 < poll(fds, 2, -1)) {
-        char buf[4096];
-        ssize_t len;
-
-        if (fds[0].revents) {
-            len = read(STDIN_FILENO, buf, sizeof(buf));
-            if (len < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO);
-
-            if (len && buf[0] == CTRL('Q')) exit(EX_OK);
-
-            len = writeAll(master, buf, len);
-            if (len < 0) err(EX_IOERR, "write(%d)", master);
-        }
-
-        if (fds[1].revents) {
-            len = read(master, buf, sizeof(buf));
-            if (len < 0) err(EX_IOERR, "read(%d)", master);
-            len = writeAll(STDOUT_FILENO, buf, len);
-            if (len < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO);
-        }
-    }
-    err(EX_IOERR, "poll([%d,%d])", STDIN_FILENO, master);
-}
-
-int main(int argc, char *argv[]) {
-    switch (argv[0][0]) {
-        case 'd': return dtch(argc, argv);
-        case 'a': return atch(argc, argv);
-    }
-    return EX_USAGE;
-}
diff --git a/home/.bin/hnel.c b/home/.bin/hnel.c
deleted file mode 100755
index 3aec85b3..00000000
--- a/home/.bin/hnel.c
+++ /dev/null
@@ -1,115 +0,0 @@
-#if 0
-exec cc -Wall -Wextra -pedantic $@ -lutil -o $(dirname $0)/hnel $0
-#endif
-
-// PTY wrapper for preserving HJKL in Tarmak layouts.
-
-#include <err.h>
-#include <poll.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <sys/ioctl.h>
-#include <sys/wait.h>
-#include <sysexits.h>
-#include <termios.h>
-#include <unistd.h>
-
-#if defined __FreeBSD__
-#include <libutil.h>
-#elif defined __linux__
-#include <pty.h>
-#else
-#include <util.h>
-#endif
-
-static char table[256] = {
-    ['n'] = 'j', ['N'] = 'J', [CTRL('N')] = CTRL('J'),
-    ['e'] = 'k', ['E'] = 'K', [CTRL('E')] = CTRL('K'),
-    ['j'] = 'e', ['J'] = 'E', [CTRL('J')] = CTRL('E'),
-    ['k'] = 'n', ['K'] = 'N', [CTRL('K')] = CTRL('N'),
-};
-
-static ssize_t writeAll(int fd, const char *buf, size_t len) {
-    ssize_t writeLen;
-    while (0 < (writeLen = write(fd, buf, len))) {
-        buf += writeLen;
-        len -= writeLen;
-    }
-    return writeLen;
-}
-
-static struct termios saveTerm;
-
-static void restoreTerm(void) {
-    tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm);
-}
-
-int main(int argc, char *argv[]) {
-    int error;
-
-    if (argc < 2) return EX_USAGE;
-
-    error = tcgetattr(STDERR_FILENO, &saveTerm);
-    if (error) err(EX_IOERR, "tcgetattr");
-    atexit(restoreTerm);
-
-    struct termios raw;
-    cfmakeraw(&raw);
-    error = tcsetattr(STDERR_FILENO, TCSADRAIN, &raw);
-    if (error) err(EX_IOERR, "tcsetattr");
-
-    struct winsize window;
-    error = ioctl(STDERR_FILENO, TIOCGWINSZ, &window);
-    if (error) err(EX_IOERR, "ioctl(%d, TIOCGWINSZ)", STDERR_FILENO);
-
-    int master;
-    pid_t pid = forkpty(&master, NULL, NULL, &window);
-    if (pid < 0) err(EX_OSERR, "forkpty");
-
-    if (!pid) {
-        execvp(argv[1], argv + 1);
-        err(EX_OSERR, "%s", argv[1]);
-    }
-
-    bool enable = true;
-
-    struct pollfd fds[2] = {
-        { .fd = STDIN_FILENO, .events = POLLIN },
-        { .fd = master, .events = POLLIN },
-    };
-    while (0 < poll(fds, 2, -1)) {
-        char buf[4096];
-        ssize_t len;
-
-        if (fds[0].revents) {
-            len = read(STDIN_FILENO, buf, sizeof(buf));
-            if (len < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO);
-
-            if (len == 1) {
-                if (buf[0] == CTRL('S')) {
-                    enable = !enable;
-                    continue;
-                }
-
-                unsigned char c = buf[0];
-                if (enable && table[c]) buf[0] = table[c];
-            }
-
-            len = writeAll(master, buf, len);
-            if (len < 0) err(EX_IOERR, "write(%d)", master);
-        }
-
-        if (fds[1].revents) {
-            len = read(master, buf, sizeof(buf));
-            if (len < 0) err(EX_IOERR, "read(%d)", master);
-            len = writeAll(STDOUT_FILENO, buf, len);
-            if (len < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO);
-        }
-
-        int status;
-        pid_t dead = waitpid(pid, &status, WNOHANG);
-        if (dead < 0) err(EX_OSERR, "waitpid(%d)", pid);
-        if (dead) return WIFEXITED(status) ? WEXITSTATUS(status) : EX_SOFTWARE;
-    }
-    err(EX_IOERR, "poll");
-}
diff --git a/home/.bin/jrp.c b/home/.bin/jrp.c
deleted file mode 100755
index 9317ac8e..00000000
--- a/home/.bin/jrp.c
+++ /dev/null
@@ -1,273 +0,0 @@
-#if 0
-exec cc -Wall -Wextra -pedantic $@ $0 -ledit -o $(dirname $0)/jrp
-#endif
-
-// JIT RPN calculator.
-
-#include <err.h>
-#include <histedit.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/mman.h>
-#include <sysexits.h>
-#include <unistd.h>
-
-typedef unsigned long qop;
-typedef unsigned int dop;
-
-typedef long qvalue;
-typedef int dvalue;
-typedef unsigned long uvalue;
-
-typedef qvalue *(*jitFn)(qvalue *);
-typedef void (*rtFn)(qvalue);
-
-static char *formatBin(qvalue val) {
-    static char buf[sizeof(qvalue) * 8 + 1];
-    uvalue uval = val;
-    size_t i = sizeof(buf);
-    do {
-        buf[--i] = '0' + (uval & 1);
-    } while (uval >>= 1);
-    return &buf[i];
-}
-
-static void rtPrintAscii(qvalue val) {
-    printf("%c\n", (char)val);
-}
-static void rtPrintBin(qvalue val) {
-    printf("%s\n", formatBin(val));
-}
-static void rtPrintOct(qvalue val) {
-    printf("%lo\n", val);
-}
-static void rtPrintDec(qvalue val) {
-    printf("%ld\n", val);
-}
-static void rtPrintHex(qvalue val) {
-    printf("%lx\n", val);
-}
-
-static const dop DOP_NOP  = 0x90666666; // nop
-static const dop DOP_PUSH = 0xc7c74857; // push rdi; mov rdi, strict dword 0
-static const dop DOP_DROP = 0x9066665f; // pop rdi
-static const dop DOP_DUP  = 0x90666657; // push rdi
-static const dop DOP_SWAP = 0x243c8748; // xchg rdi, [rsp]
-static const dop DOP_NEG  = 0x90dff748; // neg rdi
-static const dop DOP_ADD  = 0xc7014858; // pop rax; add rdi, rax
-static const dop DOP_QUO  = 0x90c78948; // mov rdi, rax
-static const dop DOP_REM  = 0x90d78948; // mov rdi, rdx
-static const dop DOP_NOT  = 0x90d7f748; // not rdi
-static const dop DOP_AND  = 0xc7214858; // pop rax; and rdi, rax
-static const dop DOP_OR   = 0xc7094858; // pop rax; or rdi, rax
-static const dop DOP_XOR  = 0xc7314858; // pop rax; xor rdi, rax
-
-static const qop QOP_PROL = 0x5ffc8948e5894855; // push rbp; mov rbp, rsp; mov rsp, rdi; pop rdi
-static const qop QOP_EPIL = 0x5dec8948e0894857; // push rdi; mov rax, rsp; mov rsp, rbp; pop rbp
-static const qop QOP_RET  = 0x90666666906666c3; // ret
-static const qop QOP_CRT  = 0xb848906690e58748; // xchg rsp, rbp; mov rax, strict qword 0
-static const qop QOP_CALL = 0x90665fe58748d0ff; // call rax; xchg rsp, rbp; pop rdi
-static const qop QOP_PUSH = 0xbf48906690666657; // push rdi; mov rdi, strict qword 0
-static const qop QOP_SUB  = 0x9066665f243c2948; // sub [rsp], rdi; pop rdi
-static const qop QOP_MUL  = 0x906666f8af0f4858; // pop rax; imul rdi, rax
-static const qop QOP_DIV  = 0x9066fff748994858; // pop rax; cqo; idiv rdi
-static const qop QOP_SHL  = 0x5f2424d348f98948; // mov rcx, rdi; shl qword [rsp], cl; pop rdi
-static const qop QOP_SHR  = 0x5f242cd348f98948; // mov rcx, rdi; shr qword [rsp], cl; pop rdi
-
-static int radix = 10;
-
-static struct {
-    qop *base;
-    qop *ptr;
-    dop dop;
-} code;
-
-static struct {
-    qvalue *base;
-    qvalue *limit;
-    qvalue *ptr;
-} stack;
-
-static void jitDop(dop op) {
-    if (code.dop) {
-        *code.ptr++ = (qop)op << 32 | code.dop;
-        code.dop = 0;
-    } else {
-        code.dop = op;
-    }
-}
-
-static void jitQop(qop op) {
-    if (code.dop) jitDop(DOP_NOP);
-    *code.ptr++ = op;
-}
-
-static void jitPush(qvalue imm) {
-    if ((dvalue)imm == imm) {
-        jitQop(DOP_PUSH | (qop)imm << 32);
-    } else {
-        jitQop(QOP_PUSH);
-        jitQop((qop)imm);
-    }
-}
-
-static void jitCall(rtFn fn) {
-    jitQop(QOP_CRT);
-    jitQop((qop)fn);
-    jitQop(QOP_CALL);
-}
-
-static void jitBegin(void) {
-    code.ptr = code.base;
-    jitQop(QOP_PROL);
-}
-
-static void jitEnd(void) {
-    jitQop(QOP_EPIL);
-    jitQop(QOP_RET);
-}
-
-static void jitInit(void) {
-    code.base = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
-    if (code.base == MAP_FAILED) err(EX_OSERR, "mmap");
-}
-
-static void stackInit(void) {
-    stack.base = mmap(0, 2 * getpagesize(), PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
-    if (stack.base == MAP_FAILED) err(EX_OSERR, "mmap");
-    stack.limit = stack.base + getpagesize() / sizeof(qvalue);
-    stack.ptr = stack.limit;
-}
-
-static void jitExec(void) {
-    int error;
-    error = mprotect(code.base, getpagesize(), PROT_READ | PROT_EXEC);
-    if (error) err(EX_OSERR, "mprotect");
-    stack.ptr = ((jitFn)code.base)(stack.ptr);
-    if (stack.ptr > stack.limit) stack.ptr = stack.limit;
-    error = mprotect(code.base, getpagesize(), PROT_READ | PROT_WRITE);
-    if (error) err(EX_OSERR, "mprotect");
-}
-
-static void jitSrc(const char *src) {
-    bool quote = false;
-    while (*src) {
-        if (quote) {
-            jitPush(*src++);
-            quote = false;
-            continue;
-        }
-
-        switch (*src) {
-            case ' ': break;
-            case 39: quote = true; break;
-            case 'B': radix = 2;   break;
-            case 'O': radix = 8;   break;
-            case 'D': radix = 10;  break;
-            case 'X': radix = 16;  break;
-            case ';': jitDop(DOP_DROP); break;
-            case ':': jitDop(DOP_DUP);  break;
-            case 92:  jitDop(DOP_SWAP); break;
-            case '_': jitDop(DOP_NEG);  break;
-            case '+': jitDop(DOP_ADD);  break;
-            case '-': jitQop(QOP_SUB);  break;
-            case '*': jitQop(QOP_MUL);  break;
-            case '/': jitQop(QOP_DIV); jitDop(DOP_QUO); break;
-            case '%': jitQop(QOP_DIV); jitDop(DOP_REM); break;
-            case '~': jitDop(DOP_NOT);  break;
-            case '&': jitDop(DOP_AND);  break;
-            case '|': jitDop(DOP_OR);   break;
-            case '^': jitDop(DOP_XOR);  break;
-            case '<': jitQop(QOP_SHL);  break;
-            case '>': jitQop(QOP_SHR);  break;
-            case ',': jitCall(rtPrintAscii); break;
-            case '.': switch (radix) {
-                case 2:  jitCall(rtPrintBin); break;
-                case 8:  jitCall(rtPrintOct); break;
-                case 10: jitCall(rtPrintDec); break;
-                case 16: jitCall(rtPrintHex); break;
-            } break;
-
-            default: {
-                char *rest;
-                qvalue val = strtol(src, &rest, radix);
-                if (rest != src) {
-                    src = rest;
-                    jitPush(val);
-                    continue;
-                }
-            }
-        }
-
-        src++;
-    }
-}
-
-static void jitDump(const char *path, FILE *file) {
-    size_t nitems = code.ptr - code.base;
-    size_t written = fwrite(code.base, sizeof(qop), nitems, file);
-    if (written < nitems) err(EX_IOERR, "%s", path);
-}
-
-static char *prompt(EditLine *el __attribute((unused))) {
-    static char buf[4096];
-    char *bufPtr = buf;
-    for (qvalue *stackPtr = stack.limit - 1; stackPtr >= stack.ptr; --stackPtr) {
-        size_t bufLen = sizeof(buf) - (bufPtr - buf) - 2;
-        switch (radix) {
-            case 2:  bufPtr += snprintf(bufPtr, bufLen, " %s", formatBin(*stackPtr)); break;
-            case 8:  bufPtr += snprintf(bufPtr, bufLen, " %lo", *stackPtr); break;
-            case 10: bufPtr += snprintf(bufPtr, bufLen, " %ld", *stackPtr); break;
-            case 16: bufPtr += snprintf(bufPtr, bufLen, " %lx", *stackPtr); break;
-        }
-    }
-    buf[0] = '[';
-    if (bufPtr == buf) bufPtr++;
-    *bufPtr++ = ']';
-    *bufPtr++ = ' ';
-    *bufPtr = 0;
-    return buf;
-}
-
-int main(int argc, char *argv[]) {
-    FILE *file = NULL;
-    char *path = getenv("JRP_DUMP");
-    if (path) {
-        file = fopen(path, "w");
-        if (!file) err(EX_CANTCREAT, "%s", path);
-    }
-
-    jitInit();
-    stackInit();
-
-    if (argc > 1) {
-        jitBegin();
-        for (int i = 1; i < argc; ++i)
-            jitSrc(argv[i]);
-        jitEnd();
-        if (file) jitDump(path, file);
-        jitExec();
-        return EX_OK;
-    }
-
-    EditLine *el = el_init(argv[0], stdin, stdout, stderr);
-    el_set(el, EL_PROMPT, prompt);
-    el_set(el, EL_SIGNAL, true);
-
-    for (;;) {
-        int count;
-        const char *line = el_gets(el, &count);
-        if (count < 0) err(EX_IOERR, "el_gets");
-        if (!line) break;
-
-        jitBegin();
-        jitSrc(line);
-        jitEnd();
-        if (file) jitDump(path, file);
-        jitExec();
-    }
-
-    el_end(el);
-    return EX_OK;
-}
diff --git a/home/.bin/pbd.c b/home/.bin/pbd.c
deleted file mode 100755
index 01e5c07d..00000000
--- a/home/.bin/pbd.c
+++ /dev/null
@@ -1,136 +0,0 @@
-#if 0
-set -e
-bin=$(dirname $0)
-cc -Wall -Wextra -pedantic $@ -o $bin/pbd $0
-ln -f $bin/pbd $bin/pbcopy
-ln -f $bin/pbd $bin/pbpaste
-exit
-#endif
-
-// TCP server which pipes between macOS pbcopy and pbpaste, and pbcopy and
-// pbpaste implementations which connect to it.
-
-#include <arpa/inet.h>
-#include <err.h>
-#include <netinet/in.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-#include <sysexits.h>
-#include <unistd.h>
-
-static void spawn(const char *cmd, int childFd, int parentFd) {
-    pid_t pid = fork();
-    if (pid < 0) err(EX_OSERR, "fork");
-
-    if (pid) {
-        int status;
-        pid_t wait = waitpid(pid, &status, 0);
-        if (wait < 0) err(EX_OSERR, "waitpid");
-
-        if (status) {
-            warnx("child %s status %d", cmd, status);
-        }
-    } else {
-        int fd = dup2(parentFd, childFd);
-        if (fd < 0) err(EX_OSERR, "dup2");
-
-        int error = execlp(cmd, cmd, NULL);
-        if (error) err(EX_OSERR, "execlp");
-    }
-}
-
-static int pbd(void) {
-    int error;
-
-    int server = socket(PF_INET, SOCK_STREAM, 0);
-    if (server < 0) err(EX_OSERR, "socket");
-
-    struct sockaddr_in addr = {
-        .sin_family = AF_INET,
-        .sin_port = htons(7062),
-        .sin_addr = { .s_addr = htonl(0x7f000001) },
-    };
-
-    error = bind(server, (struct sockaddr *)&addr, sizeof(addr));
-    if (error) err(EX_OSERR, "bind");
-
-    error = listen(server, 1);
-    if (error) err(EX_OSERR, "listen");
-
-    for (;;) {
-        int client = accept(server, NULL, NULL);
-        if (client < 0) err(EX_OSERR, "accept");
-
-        spawn("pbpaste", STDOUT_FILENO, client);
-
-        uint8_t p;
-        ssize_t peek = recv(client, &p, 1, MSG_PEEK);
-        if (peek < 0) err(EX_IOERR, "recv");
-
-        if (peek) {
-            spawn("pbcopy", STDIN_FILENO, client);
-        }
-
-        error = close(client);
-        if (error) err(EX_IOERR, "close");
-    }
-}
-
-static int pbdClient(void) {
-    int client = socket(PF_INET, SOCK_STREAM, 0);
-    if (client < 0) err(EX_OSERR, "socket");
-
-    struct sockaddr_in addr = {
-        .sin_family = AF_INET,
-        .sin_port = htons(7062),
-        .sin_addr = { .s_addr = htonl(0x7f000001) },
-    };
-
-    int error = connect(client, (struct sockaddr *)&addr, sizeof(addr));
-    if (error) err(EX_OSERR, "connect");
-
-    return client;
-}
-
-static void copy(int fdIn, int fdOut) {
-    char readBuf[4096];
-    ssize_t readLen;
-    while (0 < (readLen = read(fdIn, readBuf, sizeof(readBuf)))) {
-        char *writeBuf = readBuf;
-        ssize_t writeLen;
-        while (0 < (writeLen = write(fdOut, writeBuf, readLen))) {
-            writeBuf += writeLen;
-            readLen -= writeLen;
-        }
-        if (writeLen < 0) err(EX_IOERR, "write");
-    }
-    if (readLen < 0) err(EX_IOERR, "read");
-}
-
-static int pbcopy(void) {
-    int client = pbdClient();
-    copy(STDIN_FILENO, client);
-    return EX_OK;
-}
-
-static int pbpaste(void) {
-    int client = pbdClient();
-    int error = shutdown(client, SHUT_WR);
-    if (error) err(EX_OSERR, "shutdown");
-    copy(client, STDOUT_FILENO);
-    return EX_OK;
-}
-
-int main(int argc __attribute((unused)), char *argv[]) {
-    if (!argv[0][0] || !argv[0][1]) return EX_USAGE;
-    switch (argv[0][2]) {
-        case 'd': return pbd();
-        case 'c': return pbcopy();
-        case 'p': return pbpaste();
-    }
-    return EX_USAGE;
-}
diff --git a/home/.bin/wake.c b/home/.bin/wake.c
deleted file mode 100755
index 2f314975..00000000
--- a/home/.bin/wake.c
+++ /dev/null
@@ -1,41 +0,0 @@
-#if 0
-exec cc -Wall -Wextra -Wpedantic $@ -o $(dirname $0)/wake $0
-#endif
-
-#include <err.h>
-#include <netinet/in.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <sysexits.h>
-
-#define MAC 0x04, 0x7D, 0x7B, 0xD5, 0x6A, 0x53
-
-const uint8_t payload[] = {
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-    MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC,
-    MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC,
-};
-
-int main() {
-    int sock = socket(PF_INET, SOCK_DGRAM, 0);
-    if (sock < 0) err(EX_OSERR, "socket");
-
-    int on = 1;
-    int error = setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on));
-    if (error) err(EX_OSERR, "setsockopt");
-
-    struct sockaddr_in addr = {
-        .sin_family = AF_INET,
-        .sin_port = 9,
-        .sin_addr.s_addr = INADDR_BROADCAST,
-    };
-
-    ssize_t len = sendto(
-        sock, payload, sizeof(payload), 0,
-        (struct sockaddr *)&addr, sizeof(addr)
-    );
-    if (len < 0) err(EX_IOERR, "sendto");
-
-    return EX_OK;
-}
diff --git a/home/.bin/watch.c b/home/.bin/watch.c
deleted file mode 100755
index 7720315b..00000000
--- a/home/.bin/watch.c
+++ /dev/null
@@ -1,100 +0,0 @@
-#if 0
-exec cc -Wall -Wextra -Wpedantic -o $(dirname $0)/watch $0
-#endif
-
-/*
- * Execute a command each time files change.
- *
- * Copyright (c) 2017, June McEnroe <programble@gmail.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <sys/types.h>
-
-#include <err.h>
-#include <fcntl.h>
-#include <stdlib.h>
-#include <sys/event.h>
-#include <sys/wait.h>
-#include <sysexits.h>
-#include <unistd.h>
-
-static void watch(int kq, char *path) {
-    int fd = open(path, O_RDONLY);
-    if (fd < 0) err(EX_IOERR, "%s", path);
-
-    struct kevent event = {
-        .ident = fd,
-        .filter = EVFILT_VNODE,
-        .flags = EV_ADD | EV_CLEAR,
-        .fflags = NOTE_WRITE | NOTE_DELETE,
-        .udata = path,
-    };
-    int nevents = kevent(kq, &event, 1, NULL, 0, NULL);
-    if (nevents < 0) err(EX_IOERR, "kevent");
-}
-
-static void exec(char *const argv[]) {
-    pid_t pid = fork();
-    if (pid < 0) err(EX_OSERR, "fork");
-
-    if (!pid) {
-        execvp(argv[0], argv);
-        err(EX_OSERR, "%s", argv[0]);
-    }
-
-    int status;
-    pid = wait(&status);
-    if (pid < 0) err(EX_OSERR, "wait");
-
-    if (WIFEXITED(status)) {
-        warnx("exit %d", WEXITSTATUS(status));
-    } else if (WIFSIGNALED(status)) {
-        warnx("signal %d", WTERMSIG(status));
-    } else {
-        warnx("status %d", status);
-    }
-}
-
-int main(int argc, char *argv[]) {
-    if (argc < 3) return EX_USAGE;
-
-    int kq = kqueue();
-    if (kq < 0) err(EX_OSERR, "kqueue");
-
-    int index;
-    for (index = 1; index < argc - 1; ++index) {
-        if (argv[index][0] == '-') {
-            index++;
-            break;
-        }
-        watch(kq, argv[index]);
-    }
-
-    exec(&argv[index]);
-
-    for (;;) {
-        struct kevent event;
-        int nevents = kevent(kq, NULL, 0, &event, 1, NULL);
-        if (nevents < 0) err(EX_IOERR, "kevent");
-
-        if (event.fflags & NOTE_DELETE) {
-            close(event.ident);
-            watch(kq, event.udata);
-        }
-
-        exec(&argv[index]);
-    }
-}
diff --git a/home/.bin/xx.c b/home/.bin/xx.c
deleted file mode 100755
index 78d8db4c..00000000
--- a/home/.bin/xx.c
+++ /dev/null
@@ -1,117 +0,0 @@
-#if 0
-exec cc -Wall -Wextra -pedantic $@ -o $(dirname $0)/xx $0
-#endif
-
-// Hexdump.
-
-#include <ctype.h>
-#include <err.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sysexits.h>
-#include <unistd.h>
-
-static bool allZero(const uint8_t *buf, size_t len) {
-    for (size_t i = 0; i < len; ++i)
-        if (buf[i]) return false;
-    return true;
-}
-
-enum {
-    FLAG_ASCII  = 1 << 0,
-    FLAG_OFFSET = 1 << 1,
-    FLAG_SKIP   = 1 << 2,
-    FLAG_UNDUMP = 1 << 3,
-};
-
-static void dump(size_t cols, size_t group, uint8_t flags, FILE *file) {
-    uint8_t buf[cols];
-    size_t offset = 0, len = 0;
-    for (;;) {
-        offset += len;
-        len = fread(buf, 1, sizeof(buf), file);
-        if (!len) break;
-
-        if ((flags & FLAG_SKIP) && len == sizeof(buf)) {
-            static bool skip;
-            if (allZero(buf, len)) {
-                if (!skip) printf("*\n");
-                skip = true;
-                continue;
-            }
-            skip = false;
-        }
-
-        if (flags & FLAG_OFFSET) {
-            printf("%08zx:  ", offset);
-        }
-
-        for (size_t i = 0; i < len; ++i) {
-            if (group && i && !(i % group)) printf(" ");
-            printf("%02x ", buf[i]);
-        }
-
-        if (flags & FLAG_ASCII) {
-            for (size_t i = len; i < cols; ++i) {
-                printf((group && !(i % group)) ? "    " : "   ");
-            }
-            printf(" ");
-            for (size_t i = 0; i < len; ++i) {
-                if (group && i && !(i % group)) printf(" ");
-                printf("%c", isprint(buf[i]) ? buf[i] : '.');
-            }
-        }
-
-        printf("\n");
-        if (len < sizeof(buf)) break;
-    }
-}
-
-static void undump(FILE *file) {
-    uint8_t byte;
-    int match;
-    while (1 == (match = fscanf(file, " %hhx", &byte))) {
-        printf("%c", byte);
-    }
-    if (match == 0) errx(EX_DATAERR, "invalid input");
-}
-
-int main(int argc, char *argv[]) {
-    size_t cols = 16;
-    size_t group = 8;
-    uint8_t flags = FLAG_ASCII | FLAG_OFFSET;
-    char *path = NULL;
-
-    int opt;
-    while (0 < (opt = getopt(argc, argv, "ac:fg:hku"))) {
-        switch (opt) {
-            case 'a': flags ^= FLAG_ASCII; break;
-            case 'f': flags ^= FLAG_OFFSET; break;
-            case 'k': flags ^= FLAG_SKIP; break;
-            case 'u': flags ^= FLAG_UNDUMP; break;
-            case 'c': cols = strtoul(optarg, NULL, 10); break;
-            case 'g': group = strtoul(optarg, NULL, 10); break;
-            default:
-                fprintf(stderr, "usage: xx [-afku] [-c cols] [-g group] [file]\n");
-                return (opt == 'h') ? EX_OK : EX_USAGE;
-        }
-    }
-    if (!cols) return EX_USAGE;
-    if (argc > optind) {
-        path = argv[optind];
-    }
-
-    FILE *file = path ? fopen(path, "r") : stdin;
-    if (!file) err(EX_NOINPUT, "%s", path);
-
-    if (flags & FLAG_UNDUMP) {
-        undump(file);
-    } else {
-        dump(cols, group, flags, file);
-    }
-
-    if (ferror(file)) err(EX_IOERR, "%s", path);
-    return EX_OK;
-}