diff options
Diffstat (limited to 'bin')
| -rw-r--r-- | bin/Kbuild | 1 | ||||
| -rwxr-xr-x | bin/clear/clear | bin | 760 -> 0 bytes | |||
| -rwxr-xr-x | bin/echo/echo | bin | 51872 -> 0 bytes | |||
| -rwxr-xr-x | bin/false/false | bin | 616 -> 0 bytes | |||
| -rwxr-xr-x | bin/free/free | bin | 52936 -> 0 bytes | |||
| -rw-r--r-- | bin/pwd/Kbuild | 3 | ||||
| -rw-r--r-- | bin/pwd/pwd.c | 63 | ||||
| -rwxr-xr-x | bin/sync/sync | bin | 608 -> 0 bytes | |||
| -rwxr-xr-x | bin/true/true | bin | 616 -> 0 bytes |
9 files changed, 67 insertions, 0 deletions
@@ -3,5 +3,6 @@ obj-y += echo/ obj-y += false/ obj-y += free/ obj-y += gzip/ +obj-y += pwd/ obj-y += sync/ obj-y += true/ diff --git a/bin/clear/clear b/bin/clear/clear Binary files differdeleted file mode 100755 index 27b775a0..00000000 --- a/bin/clear/clear +++ /dev/null diff --git a/bin/echo/echo b/bin/echo/echo Binary files differdeleted file mode 100755 index 95ff666c..00000000 --- a/bin/echo/echo +++ /dev/null diff --git a/bin/false/false b/bin/false/false Binary files differdeleted file mode 100755 index 627a3e2d..00000000 --- a/bin/false/false +++ /dev/null diff --git a/bin/free/free b/bin/free/free Binary files differdeleted file mode 100755 index 31c93e2f..00000000 --- a/bin/free/free +++ /dev/null diff --git a/bin/pwd/Kbuild b/bin/pwd/Kbuild new file mode 100644 index 00000000..7abb0973 --- /dev/null +++ b/bin/pwd/Kbuild @@ -0,0 +1,3 @@ +bin-y := pwd +obj-y += pwd.o +libs-y += $(srctree)/lib/libc/libc.a diff --git a/bin/pwd/pwd.c b/bin/pwd/pwd.c new file mode 100644 index 00000000..564b22e7 --- /dev/null +++ b/bin/pwd/pwd.c @@ -0,0 +1,63 @@ +#include <err.h> +#include <limits.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/uio.h> +#include <stdio.h> +#include <unistd.h> + +int main(int argc, char **argv) +{ + const char *out = NULL; + struct iovec iov[2]; + char opt, mode = 'L'; + char cwd[PATH_MAX]; + + while ((opt = getopt(argc, argv, "")) != -1) { + switch (opt) { + case 'L': + case 'P': + mode = opt; + break; + default: + write(STDERR_FILENO, "usage: pwd [-L|-P]\n", 20); + return 1; + } + } + + if (getcwd(cwd, sizeof(cwd)) == NULL) { + perror("pwd: getcwd"); + return 1; + } + + if (mode == 'L') { + const char *pwd; + struct stat cst, pst; + + if ((pwd = getenv("PWD")) == NULL || *pwd != '/' || + stat(pwd, &pst) < 0) { + out = cwd; + } + + if (stat(cwd, &cst) < 0) { + perror("pwd: stat"); + } + + out = (pst.st_dev == cst.st_dev && pst.st_ino == cst.st_ino) ? + pwd : + cwd; + } + + iov[0].iov_base = (char *)out; + iov[0].iov_len = strlen(out); + + iov[1].iov_base = "\n"; + iov[1].iov_len = 1; + + if (writev(STDOUT_FILENO, iov, 2) < 0) { + err(1, "pwd"); + } + + return 0; +} diff --git a/bin/sync/sync b/bin/sync/sync Binary files differdeleted file mode 100755 index 95965cdc..00000000 --- a/bin/sync/sync +++ /dev/null diff --git a/bin/true/true b/bin/true/true Binary files differdeleted file mode 100755 index 8f690cd7..00000000 --- a/bin/true/true +++ /dev/null |