diff options
Diffstat (limited to '.bin')
| -rwxr-xr-x | .bin/bri.c | 78 | ||||
| -rwxr-xr-x | .bin/clock.c | 33 | ||||
| -rwxr-xr-x | .bin/jrp.c | 273 | ||||
| -rwxr-xr-x | .bin/manpager | 1 | ||||
| -rwxr-xr-x | .bin/pbcopy.c | 55 | ||||
| -rwxr-xr-x | .bin/pbd.c | 73 | ||||
| -rwxr-xr-x | .bin/xx.c | 116 |
7 files changed, 0 insertions, 629 deletions
diff --git a/.bin/bri.c b/.bin/bri.c deleted file mode 100755 index 4c53475f..00000000 --- a/.bin/bri.c +++ /dev/null @@ -1,78 +0,0 @@ -#if 0 -cc -Wall -Wextra -pedantic $@ -o $(dirname $0)/bri $0 && \ -sudo chown root:root $(dirname $0)/bri && \ -sudo chmod u+s $(dirname $0)/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; - } - - error = setuid(0); - if (error) err(EX_NOPERM, "setuid(0)"); - - 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/.bin/clock.c b/.bin/clock.c deleted file mode 100755 index 288884d8..00000000 --- a/.bin/clock.c +++ /dev/null @@ -1,33 +0,0 @@ -#if 0 -exec cc -Wall -Wextra -pedantic $@ -o $(dirname $0)/clock $0 -#endif - -// Fuzzy clock for display in tmux. - -#include <time.h> -#include <stdio.h> -#include <sysexits.h> -#include <err.h> - -int main() { - time_t ts = time(NULL); - if (ts < 0) err(EX_OSERR, "time"); - - struct tm *time = localtime(&ts); - if (!time) err(EX_OSERR, "localtime"); - - int hour = time->tm_hour; - int next = (hour + 1) % 24; - - switch ((time->tm_min + 5) / 10) { - case 0: printf("..%02d..\n", hour); break; - case 1: printf(".%02d...\n", hour); break; - case 2: printf("%02d....\n", hour); break; - case 3: printf("%d....%d\n", hour % 10, next / 10); break; - case 4: printf("....%02d\n", next); break; - case 5: printf("...%02d.\n", next); break; - case 6: printf("..%02d..\n", next); break; - } - - return EX_OK; -} diff --git a/.bin/jrp.c b/.bin/jrp.c deleted file mode 100755 index 9317ac8e..00000000 --- a/.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/.bin/manpager b/.bin/manpager deleted file mode 100755 index f358f5d9..00000000 --- a/.bin/manpager +++ /dev/null @@ -1 +0,0 @@ -exec nvim -c 'set ft=man' - 1< /dev/tty 2< /dev/tty diff --git a/.bin/pbcopy.c b/.bin/pbcopy.c deleted file mode 100755 index 23403d2d..00000000 --- a/.bin/pbcopy.c +++ /dev/null @@ -1,55 +0,0 @@ -#if 0 -cc -Wall -Wextra -pedantic $@ -o $(dirname $0)/pbcopy $0 && \ -exec cc -Wall -Wextra -pedantic -DPBPASTE $@ -o $(dirname $0)/pbpaste $0 -#endif - -// pbcopy and pbpaste implementation which connects to pbd. - -#include <arpa/inet.h> -#include <err.h> -#include <netinet/in.h> -#include <stdio.h> -#include <sys/socket.h> -#include <sysexits.h> -#include <unistd.h> - -int main() { - int error; - - 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) }, - }; - - error = connect(client, (struct sockaddr *)&addr, sizeof(addr)); - if (error) err(EX_OSERR, "connect"); - -#ifdef PBPASTE - int fdIn = client; - int fdOut = STDOUT_FILENO; - error = shutdown(client, SHUT_WR); - if (error) err(EX_OSERR, "shutdown"); -#else - int fdIn = STDIN_FILENO; - int fdOut = client; -#endif - - 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"); - - return EX_OK; -} diff --git a/.bin/pbd.c b/.bin/pbd.c deleted file mode 100755 index e7b61d12..00000000 --- a/.bin/pbd.c +++ /dev/null @@ -1,73 +0,0 @@ -#if 0 -exec cc -Wall -Wextra -pedantic $@ -o $(dirname $0)/pbd $0 -#endif - -// TCP server which pipes between macOS pbcopy and pbpaste. - -#include <err.h> -#include <netinet/in.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); - if (error) err(EX_OSERR, "execlp"); - } -} - -int main() { - 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"); - } -} diff --git a/.bin/xx.c b/.bin/xx.c deleted file mode 100755 index 269c9d55..00000000 --- a/.bin/xx.c +++ /dev/null @@ -1,116 +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, - FLAG_OFFSET = 2, - FLAG_SKIP = 4, - FLAG_UNDUMP = 8, -}; - -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) { - printf("%c", isprint(buf[i]) ? buf[i] : '.'); - } - } - - printf("\n"); - if (len < sizeof(buf)) break; - } -} - -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; -} |