mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-18 05:19:29 +08:00
Chris Tate
82b065c014
* feat(fs): support static writeSync - Lower Buffer-window and UTF-8 string overloads through the C and LLVM backends. - Match Node's positioned and current-offset write behavior, validation, and errors. - Add differential corpus coverage and publish the static surface manifest entry. * fix(fs): preserve writeSync runtime semantics * fix fs.writeSync error parity * fix fs write descriptor errors
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#include <fcntl.h>
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#include <string.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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#include <unistd.h>
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static int child_status(int status) {
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if (WIFEXITED(status)) return WEXITSTATUS(status);
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if (WIFSIGNALED(status)) return 128 + WTERMSIG(status);
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return 125;
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}
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int main(int argc, char **argv) {
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if (argc < 3) return 126;
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if (strcmp(argv[1], "rlimit") == 0) {
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struct rlimit limit = {512, 512};
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if (setrlimit(RLIMIT_FSIZE, &limit) != 0) return 124;
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execv(argv[2], argv + 2);
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return 123;
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}
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if (strcmp(argv[1], "nonblock") == 0) {
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int fds[2];
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if (pipe(fds) != 0) return 122;
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int flags = fcntl(fds[1], F_GETFL);
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if (flags < 0 || fcntl(fds[1], F_SETFL, flags | O_NONBLOCK) != 0) return 121;
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pid_t pid = fork();
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if (pid < 0) return 120;
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if (pid == 0) {
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close(fds[0]);
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if (dup2(fds[1], STDOUT_FILENO) < 0) _exit(119);
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close(fds[1]);
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execv(argv[2], argv + 2);
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_exit(118);
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}
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close(fds[1]);
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int status = 0;
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if (waitpid(pid, &status, 0) < 0) return 117;
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close(fds[0]);
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return child_status(status);
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}
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return 116;
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}
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