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| author | Willy Tarreau <w@1wt.eu> | 2007-12-16 12:09:48 +0100 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2007-12-16 12:09:48 +0100 |
| commit | 33952960121fab30f87581deb7876276786d877d (patch) | |
| tree | c8425241ef649a4cc2094404be884126aa97eb34 | |
| parent | init: add the "br" command to branch without returning (diff) | |
| download | flxutils-33952960121fab30f87581deb7876276786d877d.tar.xz | |
init: add new commands "cd", "cr" and "sw"
cd <dir> does chdir(dir)
cr <dir> does only chroot(dir)
sw <dir> does chroot(dir), chdir(/) and reopens the console
| -rw-r--r-- | init/init.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/init/init.c b/init/init.c index a1949b0..abb8b42 100644 --- a/init/init.c +++ b/init/init.c @@ -306,6 +306,9 @@ enum { TOK_CH, /* ch : make char devices */ TOK_FI, /* fi : make a fifo */ TOK_MA, /* ma : set umask */ + TOK_CD, /* cd : chdir */ + TOK_CR, /* cr : chroot (without chdir) */ + TOK_SW, /* sw : switch root = chdir + chroot . + reopen console */ TOK_PR, /* pr : pivot root */ TOK_MV, /* mv : move a filesystem */ TOK_BI, /* bi : bind a directory */ @@ -329,7 +332,7 @@ enum { }; /* counts from TOK_LN to TOK_DOT */ -#define NB_TOKENS 26 +#define NB_TOKENS 29 /* possible states for variable parsing */ enum { @@ -360,6 +363,9 @@ static const __attribute__ ((__section__(STR_SECT),__aligned__(1))) struct { "ch", 'C', 6, /* TOK_CH */ "fi", 'F', 4, /* TOK_FI */ "ma", 'U', 1, /* TOK_MA */ + "cd", 0, 1, /* TOK_CD */ + "cr", 0, 1, /* TOK_CR */ + "sw", 0, 1, /* TOK_SW */ "pr", 'P', 2, /* TOK_PR */ "mv", 'K', 2, /* TOK_MV */ "bi", 'K', 2, /* TOK_BI */ @@ -1786,6 +1792,33 @@ int main(int argc, char **argv, char **envp) { /* U <umask> : change umask */ umask(a2mode(cfg_args[1])); break; + case TOK_CD: + /* cd <new_dir> : change current directory */ + if (chdir(cfg_args[1]) == -1) { + error = 1; + print("cd : error during chdir()\n"); + } + break; + case TOK_CR: + /* cr <new_root> : change root without chdir */ + if (chroot(cfg_args[1]) == -1) { + error = 1; + print("cr (chroot) : error during chroot()\n"); + } + break; + case TOK_SW: + /* sw <new_root> : switch root + reopen console from new root if it exists */ + if (chroot(cfg_args[1]) == -1) { + error = 1; + print("cr (chroot) : error during chroot()\n"); + } + if (chdir(root_dir) == -1) { + error = 1; + print("cd : error during chdir()\n"); + } + /* replace stdin/stdout/stderr with newer ones */ + reopen_console(); + break; case TOK_PR: /* P <new_root> <put_old_relative> : pivot root */ if (chdir(cfg_args[1]) == -1) { |