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https://github.com/RGBCube/serenity
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Kernel: Support open() with O_CREAT.
It's now possible to create zero-length files! :^) Also hook up the new functionality in /bin/touch.
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a47f33bed3
commit
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9 changed files with 108 additions and 39 deletions
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@ -1,6 +1,26 @@
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#include <stdio.h>
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#include <errno.h>
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#include <utime.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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static bool file_exists(const char* path)
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{
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struct stat st;
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int rc = stat(path, &st);
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if (rc < 0) {
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if (errno == ENOENT)
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return false;
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}
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if (rc == 0) {
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return true;
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}
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perror("stat");
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exit(1);
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}
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int main(int argc, char** argv)
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{
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@ -8,9 +28,22 @@ int main(int argc, char** argv)
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fprintf(stderr, "usage: touch <path>\n");
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return 1;
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}
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int rc = utime(argv[1], nullptr);
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if (rc < 0)
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perror("utime");
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if (file_exists(argv[1])) {
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int rc = utime(argv[1], nullptr);
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if (rc < 0)
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perror("utime");
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} else {
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int fd = open(argv[1], O_CREAT, 0010644);
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if (fd < 0) {
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perror("open");
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return 1;
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}
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int rc = close(fd);
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if (rc < 0) {
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perror("close");
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return 1;
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}
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}
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return 0;
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}
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