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- #include <errno.h>
- #include <stdlib.h>
- #include <sys/stat.h>
- #include <sys/types.h>
- #include <unistd.h>
- #include <string>
- #define EX_USAGE_ERROR 100
- void usage(const char* program, const char* error) {
- if (error)
- fprintf(stderr, "ERROR: %s\n", error);
- fprintf(stderr, "Usage: %s <cmd> [args..]\n", program);
- exit(EX_USAGE_ERROR);
- }
- int main(int argc, char** argv, char** envp) {
- if (argc < 2)
- usage(argv[0], "No command passed");
- std::string cmd(argv[1]);
- if (cmd == "fstat") {
-
- if (argc < 3)
- usage(argv[0], "No fd passed to fstat");
- int fd = atoi(argv[2]);
- struct stat buf;
- int rc = fstat(fd, &buf);
- if (rc < 0) {
- int ret = errno;
- perror("fstat");
- return ret;
- }
- return 0;
- }
- usage(argv[0], "Unknown command");
- }
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