31 lines
519 B
C
31 lines
519 B
C
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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int mknodat(int dirfd, const char *pathname, mode_t mode, dev_t dev)
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{
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int ret = 0;
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int curdir_fd = open(".", O_DIRECTORY | O_CLOEXEC);
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if (curdir_fd < 0)
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return -1;
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if (fchdir(dirfd) < 0) {
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ret = -1;
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goto cleanup;
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}
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/* if mknod fails, fall through and restore the original dirfd */
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if (mknod(pathname, mode, dev) < 0) {
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ret = -1;
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}
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if (fchdir(curdir_fd) < 0) {
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ret = -1;
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goto cleanup;
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}
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cleanup:
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close(curdir_fd);
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return ret;
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}
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