diff options
Diffstat (limited to 'libbb/login.c')
| -rw-r--r-- | libbb/login.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libbb/login.c b/libbb/login.c index 8f080b775..5a7acfcf0 100644 --- a/libbb/login.c +++ b/libbb/login.c @@ -45,6 +45,45 @@ void FAST_FUNC print_login_issue(const char *issue_file, const char *tty) if (c == '\\' || c == '%') { c = fgetc(fp); switch (c) { +//From getty manpage (* - supported by us) +//======================================== +//4 or 4{interface} +// Insert the IPv4 address of the network interface (example: \4{eth0}). +// If the interface argument is not specified, then select the first +// fully configured (UP, non-LOOPBACK, RUNNING) interface. +//6 or 6{interface} -- The same as \4 but for IPv6. +//b -- Insert the baudrate of the current line. +//*d -- Insert the current date. +//*t -- Insert the current time. +//e or e{name} +// Translate the human-readable name to an escape sequence and insert it +// (for example: \e{red}Alert text.\e{reset}). If the name argument +// is not specified, then insert \033. The currently supported names are: +// black, blink, blue, bold, brown, cyan, darkgray, gray, green, halfbright, +// lightblue, lightcyan, lightgray, lightgreen, lightmagenta, lightred, +// magenta, red, reset, reverse, and yellow. Unknown names are ignored. +//*s +// Insert the system name (the name of the operating system - `uname -s`) +//*S or S{VARIABLE} +// Insert the VARIABLE data from /etc/os-release. +// If the VARIABLE argument is not specified, use PRETTY_NAME. +// If PRETTY_NAME is not in /etc/os-release, \S is the same as \s. +//*l -- Insert the name of the current tty line. +//*m -- Insert the architecture identifier of the machine: `uname -m`. +//*n -- Insert the nodename of the machine: `uname -n`. +//*o -- Insert the NIS domainname of the machine. Same as `hostname -d'. +//*O -- Insert the DNS domainname of the machine. +//*r -- Insert the release number of the OS: `uname -r`. +//u -- Insert the number of current users logged in. +//U -- Insert the string "1 user" or "N users" (current users logged in). +//*v -- Insert the version of the OS, e.g. the build-date etc: `uname -v`. +//We also implement: +//*D -- same as \O "DNS domainname" +//*h -- same as \n "nodename" + + case 'S': + /* minimal implementation, not reading /etc/os-release */ + /*FALLTHROUGH*/ case 's': outbuf = uts.sysname; break; @@ -65,6 +104,7 @@ void FAST_FUNC print_login_issue(const char *issue_file, const char *tty) #if defined(__linux__) case 'D': case 'o': + case 'O': outbuf = uts.domainname; break; #endif |