mirror of
https://github.com/sheumann/hush.git
synced 2024-07-02 08:29:40 +00:00
getty must chdir(/). Use bb_getopt_ulflags. Indent. error() perfect
This commit is contained in:
"Vladimir N. Oleynik"
parent
6160d45e05
commit
3e245c9e21
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@ -38,7 +38,6 @@
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/* If USE_SYSLOG is undefined all diagnostics go directly to /dev/console. */
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#ifdef CONFIG_SYSLOGD
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#include <sys/param.h>
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#define USE_SYSLOG
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#include <syslog.h>
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#endif
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@ -48,8 +47,8 @@
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* System V, assume it is SunOS 4.
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*/
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#ifdef LOGIN_PROCESS /* defined in System V utmp.h */
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#define SYSV_STYLE /* select System V style getty */
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#ifdef LOGIN_PROCESS /* defined in System V utmp.h */
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#define SYSV_STYLE /* select System V style getty */
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#ifdef CONFIG_FEATURE_WTMP
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extern void updwtmp(const char *filename, const struct utmp *ut);
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#endif
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@ -63,7 +62,7 @@ extern void updwtmp(const char *filename, const struct utmp *ut);
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* and for line editing at the same time.
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*/
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#ifdef SYSV_STYLE
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#ifdef SYSV_STYLE
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#include <sys/utsname.h>
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#include <time.h>
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#endif
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@ -72,25 +71,25 @@ extern void updwtmp(const char *filename, const struct utmp *ut);
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* /etc/issue file. You will not want to spit out large "issue" files at the
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* wrong baud rate.
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*/
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#define ISSUE "/etc/issue" /* displayed before the login prompt */
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#define ISSUE "/etc/issue" /* displayed before the login prompt */
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/* Some shorthands for control characters. */
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#define CTL(x) (x ^ 0100) /* Assumes ASCII dialect */
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#define CR CTL('M') /* carriage return */
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#define NL CTL('J') /* line feed */
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#define BS CTL('H') /* back space */
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#define DEL CTL('?') /* delete */
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#define CTL(x) (x ^ 0100) /* Assumes ASCII dialect */
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#define CR CTL('M') /* carriage return */
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#define NL CTL('J') /* line feed */
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#define BS CTL('H') /* back space */
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#define DEL CTL('?') /* delete */
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/* Defaults for line-editing etc. characters; you may want to change this. */
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#define DEF_ERASE DEL /* default erase character */
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#define DEF_INTR CTL('C') /* default interrupt character */
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#define DEF_QUIT CTL('\\') /* default quit char */
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#define DEF_KILL CTL('U') /* default kill char */
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#define DEF_EOF CTL('D') /* default EOF char */
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#define DEF_EOL '\n'
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#define DEF_SWITCH 0 /* default switch char */
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#define DEF_ERASE DEL /* default erase character */
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#define DEF_INTR CTL('C') /* default interrupt character */
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#define DEF_QUIT CTL('\\') /* default quit char */
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#define DEF_KILL CTL('U') /* default kill char */
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#define DEF_EOF CTL('D') /* default EOF char */
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#define DEF_EOL '\n'
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#define DEF_SWITCH 0 /* default switch char */
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/*
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* SunOS 4.1.1 termio is broken. We must use the termios stuff instead,
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@ -103,14 +102,14 @@ extern void updwtmp(const char *filename, const struct utmp *ut);
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/* linux 0.12 termio is broken too, if we use it c_cc[VERASE] isn't set
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properly, but all is well if we use termios?! */
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#ifdef TCGETS
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#undef TCGETA
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#undef TCSETA
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#undef TCSETAW
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#define termio termios
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#define TCGETA TCGETS
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#define TCSETA TCSETS
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#define TCSETAW TCSETSW
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#ifdef TCGETS
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#undef TCGETA
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#undef TCSETA
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#undef TCSETAW
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#define termio termios
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#define TCGETA TCGETS
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#define TCSETA TCSETS
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#define TCSETAW TCSETSW
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#endif
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/*
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@ -119,7 +118,7 @@ extern void updwtmp(const char *filename, const struct utmp *ut);
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* Release <3).
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*/
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#ifndef BUFSIZ
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#define BUFSIZ 1024
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#define BUFSIZ 1024
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#endif
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/*
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@ -127,50 +126,54 @@ extern void updwtmp(const char *filename, const struct utmp *ut);
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* we will try is the first one specified.
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*/
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#define FIRST_SPEED 0
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#define FIRST_SPEED 0
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/* Storage for command-line options. */
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#define MAX_SPEED 10 /* max. nr. of baud rates */
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#define MAX_SPEED 10 /* max. nr. of baud rates */
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struct options {
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int flags; /* toggle switches, see below */
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int timeout; /* time-out period */
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char *login; /* login program */
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char *tty; /* name of tty */
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char *initstring; /* modem init string */
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char *issue; /* alternative issue file */
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int numspeed; /* number of baud rates to try */
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int speeds[MAX_SPEED]; /* baud rates to be tried */
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int flags; /* toggle switches, see below */
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int timeout; /* time-out period */
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char *login; /* login program */
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char *tty; /* name of tty */
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char *initstring; /* modem init string */
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char *issue; /* alternative issue file */
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int numspeed; /* number of baud rates to try */
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int speeds[MAX_SPEED]; /* baud rates to be tried */
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};
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#define F_PARSE (1<<0) /* process modem status messages */
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#define F_ISSUE (1<<1) /* display /etc/issue */
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#define F_RTSCTS (1<<2) /* enable RTS/CTS flow control */
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#define F_LOCAL (1<<3) /* force local */
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#define F_INITSTRING (1<<4) /* initstring is set */
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#define F_WAITCRLF (1<<5) /* wait for CR or LF */
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#define F_CUSTISSUE (1<<6) /* give alternative issue file */
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#define F_NOPROMPT (1<<7) /* don't ask for login name! */
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static const char opt_string[] = "I:LH:f:hil:mt:wn";
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#define F_INITSTRING (1<<0) /* initstring is set */
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#define F_LOCAL (1<<1) /* force local */
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#define F_FAKEHOST (1<<2) /* force fakehost */
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#define F_CUSTISSUE (1<<3) /* give alternative issue file */
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#define F_RTSCTS (1<<4) /* enable RTS/CTS flow control */
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#define F_ISSUE (1<<5) /* display /etc/issue */
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#define F_LOGIN (1<<6) /* non-default login program */
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#define F_PARSE (1<<7) /* process modem status messages */
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#define F_TIMEOUT (1<<8) /* time out */
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#define F_WAITCRLF (1<<9) /* wait for CR or LF */
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#define F_NOPROMPT (1<<10) /* don't ask for login name! */
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/* Storage for things detected while the login name was read. */
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struct chardata {
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int erase; /* erase character */
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int kill; /* kill character */
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int eol; /* end-of-line character */
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int parity; /* what parity did we see */
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int capslock; /* upper case without lower case */
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int erase; /* erase character */
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int kill; /* kill character */
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int eol; /* end-of-line character */
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int parity; /* what parity did we see */
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int capslock; /* upper case without lower case */
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};
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/* Initial values for the above. */
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static struct chardata init_chardata = {
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DEF_ERASE, /* default erase character */
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DEF_KILL, /* default kill character */
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13, /* default eol char */
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0, /* space parity */
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0, /* no capslock */
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DEF_ERASE, /* default erase character */
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DEF_KILL, /* default kill character */
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13, /* default eol char */
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0, /* space parity */
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0, /* no capslock */
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};
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#if 0
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@ -193,16 +196,16 @@ static struct Speedtab speedtab[] = {
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{2400, B2400},
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{4800, B4800},
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{9600, B9600},
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#ifdef B19200
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#ifdef B19200
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{19200, B19200},
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#endif
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#ifdef B38400
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#ifdef B38400
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{38400, B38400},
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#endif
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#ifdef EXTA
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#ifdef EXTA
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{19200, EXTA},
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#endif
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#ifdef EXTB
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#ifdef EXTB
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{38400, EXTB},
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#endif
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#ifdef B57600
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@ -226,16 +229,14 @@ static void auto_baud(struct termio *tp);
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static void do_prompt(struct options *op, struct termio *tp);
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static void next_speed(struct termio *tp, struct options *op);
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static char *get_logname(struct options *op, struct chardata *cp,
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struct termio *tp);
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struct termio *tp);
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static void termio_final(struct options *op, struct termio *tp,
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struct chardata *cp);
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struct chardata *cp);
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static int caps_lock(const char *s);
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static int bcode(char *s);
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static int bcode(const char *s);
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static void error(const char *fmt, ...) __attribute__ ((noreturn));
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#ifdef SYSV_STYLE
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#ifdef SYSV_STYLE
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#ifdef CONFIG_FEATURE_UTMP
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static void update_utmp(char *line);
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#endif
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@ -252,26 +253,26 @@ static char *fakehost = NULL;
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#define DEBUGTERM "/dev/ttyp0"
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FILE *dbf;
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#else
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#define debug(s) /* nothing */
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#define debug(s) /* nothing */
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#endif
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int getty_main(int argc, char **argv)
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{
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char *logname = NULL; /* login name, given to /bin/login */
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struct chardata chardata; /* set by get_logname() */
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struct termio termio; /* terminal mode bits */
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char *logname = NULL; /* login name, given to /bin/login */
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struct chardata chardata; /* set by get_logname() */
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struct termio termio; /* terminal mode bits */
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static struct options options = {
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F_ISSUE, /* show /etc/issue (SYSV_STYLE) */
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0, /* no timeout */
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_PATH_LOGIN, /* default login program */
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"tty1", /* default tty line */
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"", /* modem init string */
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0, /* show /etc/issue (SYSV_STYLE) */
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0, /* no timeout */
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_PATH_LOGIN, /* default login program */
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"tty1", /* default tty line */
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"", /* modem init string */
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#ifdef ISSUE
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ISSUE, /* default issue file */
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ISSUE, /* default issue file */
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#else
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NULL,
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#endif
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0, /* no baud rates known yet */
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0, /* no baud rates known yet */
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};
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#ifdef DEBUGGING
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@ -298,7 +299,7 @@ int getty_main(int argc, char **argv)
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/* Update the utmp file. */
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#ifdef SYSV_STYLE
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#ifdef SYSV_STYLE
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#ifdef CONFIG_FEATURE_UTMP
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update_utmp(options.tty);
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#endif
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@ -346,7 +347,7 @@ int getty_main(int argc, char **argv)
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debug("waiting for cr-lf\n");
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while (read(0, &ch, 1) == 1) {
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ch &= 0x7f; /* strip "parity bit" */
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ch &= 0x7f; /* strip "parity bit" */
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#ifdef DEBUGGING
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fprintf(dbf, "read %c\n", ch);
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#endif
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@ -387,85 +388,45 @@ int getty_main(int argc, char **argv)
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static void parse_args(int argc, char **argv, struct options *op)
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{
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extern char *optarg; /* getopt */
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extern int optind; /* getopt */
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int c;
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char *ts;
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while (isascii(c = getopt(argc, argv, "I:LH:f:hil:mt:wn"))) {
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switch (c) {
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case 'I':
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if (!(op->initstring = strdup(optarg)))
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error(bb_msg_memory_exhausted);
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op->flags = bb_getopt_ulflags(argc, argv, opt_string,
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&(op->initstring), &fakehost, &(op->issue),
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&(op->login), &ts);
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if(op->flags & F_INITSTRING) {
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const char *p = op->initstring;
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char *q;
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{
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const char *p;
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char *q;
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/* copy optarg into op->initstring decoding \ddd
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octal codes into chars */
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q = op->initstring;
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p = optarg;
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while (*p) {
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if (*p == '\\') {
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p++;
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*q++ = bb_process_escape_sequence(&p);
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} else {
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*q++ = *p++;
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}
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}
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*q = '\0';
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q = op->initstring = bb_xstrdup(op->initstring);
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/* copy optarg into op->initstring decoding \ddd
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octal codes into chars */
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while (*p) {
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if (*p == '\\') {
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p++;
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*q++ = bb_process_escape_sequence(&p);
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} else {
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*q++ = *p++;
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}
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op->flags |= F_INITSTRING;
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break;
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case 'L': /* force local */
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op->flags |= F_LOCAL;
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break;
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case 'H': /* fake login host */
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fakehost = optarg;
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break;
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case 'f': /* custom issue file */
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op->flags |= F_CUSTISSUE;
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op->issue = optarg;
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break;
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case 'h': /* enable h/w flow control */
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op->flags |= F_RTSCTS;
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break;
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case 'i': /* do not show /etc/issue */
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op->flags &= ~F_ISSUE;
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break;
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case 'l':
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op->login = optarg; /* non-default login program */
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break;
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case 'm': /* parse modem status message */
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op->flags |= F_PARSE;
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break;
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case 'n':
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op->flags |= F_NOPROMPT;
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break;
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case 't': /* time out */
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if ((op->timeout = atoi(optarg)) <= 0)
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error("bad timeout value: %s", optarg);
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break;
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case 'w':
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op->flags |= F_WAITCRLF;
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break;
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default:
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bb_show_usage();
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}
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*q = '\0';
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}
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op->flags ^= F_ISSUE; /* revert flag show /etc/issue */
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if(op->flags & F_TIMEOUT) {
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if ((op->timeout = atoi(ts)) <= 0)
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error("bad timeout value: %s", ts);
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}
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debug("after getopt loop\n");
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if (argc < optind + 2) /* check parameter count */
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if (argc < optind + 2) /* check parameter count */
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bb_show_usage();
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/* we loosen up a bit and accept both "baudrate tty" and "tty baudrate" */
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if ('0' <= argv[optind][0] && argv[optind][0] <= '9') {
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/* a number first, assume it's a speed (BSD style) */
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parse_speeds(op, argv[optind++]); /* baud rate(s) */
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op->tty = argv[optind]; /* tty name */
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parse_speeds(op, argv[optind++]); /* baud rate(s) */
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op->tty = argv[optind]; /* tty name */
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} else {
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op->tty = argv[optind++]; /* tty name */
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parse_speeds(op, argv[optind]); /* baud rate(s) */
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op->tty = argv[optind++]; /* tty name */
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parse_speeds(op, argv[optind]); /* baud rate(s) */
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}
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optind++;
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@ -491,7 +452,7 @@ static void parse_speeds(struct options *op, char *arg)
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debug("exiting parsespeeds\n");
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}
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#ifdef SYSV_STYLE
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#ifdef SYSV_STYLE
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#ifdef CONFIG_FEATURE_UTMP
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/* update_utmp - update our utmp entry */
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@ -519,7 +480,7 @@ static void update_utmp(char *line)
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utmpname(_PATH_UTMP);
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setutent();
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while ((utp = getutent())
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&& !(utp->ut_type == INIT_PROCESS && utp->ut_pid == mypid)) /* nothing */
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&& !(utp->ut_type == INIT_PROCESS && utp->ut_pid == mypid)) /* nothing */
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;
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if (utp) {
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@ -544,7 +505,7 @@ static void update_utmp(char *line)
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endutent();
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#ifdef CONFIG_FEATURE_WTMP
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if (access(_PATH_WTMP, R_OK|W_OK) == -1)
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if (access(_PATH_WTMP, R_OK|W_OK) == -1)
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close(creat(_PATH_WTMP, 0664));
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updwtmp(_PATH_WTMP, &ut);
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#endif
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@ -556,6 +517,8 @@ static void update_utmp(char *line)
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/* open_tty - set up tty as standard { input, output, error } */
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static void open_tty(char *tty, struct termio *tp, int local)
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{
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int chdir_to_root = 0;
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/* Set up new standard input, unless we are given an already opened port. */
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if (strcmp(tty, "-")) {
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@ -566,6 +529,7 @@ static void open_tty(char *tty, struct termio *tp, int local)
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if (chdir("/dev"))
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error("/dev: chdir() failed: %m");
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chdir_to_root = 1;
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if (stat(tty, &st) < 0)
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error("/dev/%s: %m", tty);
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if ((st.st_mode & S_IFMT) != S_IFCHR)
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@ -594,7 +558,7 @@ static void open_tty(char *tty, struct termio *tp, int local)
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debug("duping\n");
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if (dup2(STDIN_FILENO, STDOUT_FILENO) == -1 ||
|
||||
dup2(STDIN_FILENO, STDERR_FILENO) == -1)
|
||||
error("%s: dup problem: %m", tty); /* we have a problem */
|
||||
error("%s: dup problem: %m", tty); /* we have a problem */
|
||||
|
||||
/*
|
||||
* The following ioctl will fail if stdin is not a tty, but also when
|
||||
|
|
@ -649,17 +613,17 @@ static void open_tty(char *tty, struct termio *tp, int local)
|
|||
}
|
||||
}
|
||||
#else
|
||||
(void) chown(tty, 0, 0); /* root, sys */
|
||||
(void) chmod(tty, 0622); /* crw--w--w- */
|
||||
errno = 0; /* ignore above errors */
|
||||
(void) chown(tty, 0, 0); /* root, sys */
|
||||
(void) chmod(tty, 0622); /* crw--w--w- */
|
||||
#endif
|
||||
if(chdir_to_root && chdir("/"))
|
||||
error("chdir to / failed: %m");
|
||||
}
|
||||
|
||||
/* termio_init - initialize termio settings */
|
||||
|
||||
static void termio_init(struct termio *tp, int speed, struct options *op)
|
||||
{
|
||||
|
||||
/*
|
||||
* Initial termio settings: 8-bit characters, raw-mode, blocking i/o.
|
||||
* Special characters are set after we have read the login name; all
|
||||
|
|
@ -682,7 +646,7 @@ static void termio_init(struct termio *tp, int speed, struct options *op)
|
|||
|
||||
/* Optionally enable hardware flow control */
|
||||
|
||||
#ifdef CRTSCTS
|
||||
#ifdef CRTSCTS
|
||||
if (op->flags & F_RTSCTS)
|
||||
tp->c_cflag |= CRTSCTS;
|
||||
#endif
|
||||
|
|
@ -726,9 +690,9 @@ static void auto_baud(struct termio *tp)
|
|||
*/
|
||||
|
||||
iflag = tp->c_iflag;
|
||||
tp->c_iflag |= ISTRIP; /* enable 8th-bit stripping */
|
||||
tp->c_iflag |= ISTRIP; /* enable 8th-bit stripping */
|
||||
vmin = tp->c_cc[VMIN];
|
||||
tp->c_cc[VMIN] = 0; /* don't block if queue empty */
|
||||
tp->c_cc[VMIN] = 0; /* don't block if queue empty */
|
||||
(void) ioctl(0, TCSETA, tp);
|
||||
|
||||
/*
|
||||
|
|
@ -759,7 +723,7 @@ static void auto_baud(struct termio *tp)
|
|||
/* do_prompt - show login prompt, optionally preceded by /etc/issue contents */
|
||||
static void do_prompt(struct options *op, struct termio *tp)
|
||||
{
|
||||
#ifdef ISSUE /* optional: show /etc/issue */
|
||||
#ifdef ISSUE /* optional: show /etc/issue */
|
||||
print_login_issue(op->issue, op->tty);
|
||||
#endif
|
||||
print_login_prompt();
|
||||
|
|
@ -768,7 +732,7 @@ static void do_prompt(struct options *op, struct termio *tp)
|
|||
/* next_speed - select next baud rate */
|
||||
static void next_speed(struct termio *tp, struct options *op)
|
||||
{
|
||||
static int baud_index = FIRST_SPEED; /* current speed index */
|
||||
static int baud_index = FIRST_SPEED; /* current speed index */
|
||||
|
||||
baud_index = (baud_index + 1) % op->numspeed;
|
||||
tp->c_cflag &= ~CBAUD;
|
||||
|
|
@ -782,15 +746,15 @@ static char *get_logname(struct options *op, struct chardata *cp, struct termio
|
|||
{
|
||||
static char logname[BUFSIZ];
|
||||
char *bp;
|
||||
char c; /* input character, full eight bits */
|
||||
char ascval; /* low 7 bits of input character */
|
||||
int bits; /* # of "1" bits per character */
|
||||
int mask; /* mask with 1 bit up */
|
||||
static char *erase[] = { /* backspace-space-backspace */
|
||||
"\010\040\010", /* space parity */
|
||||
"\010\040\010", /* odd parity */
|
||||
"\210\240\210", /* even parity */
|
||||
"\210\240\210", /* no parity */
|
||||
char c; /* input character, full eight bits */
|
||||
char ascval; /* low 7 bits of input character */
|
||||
int bits; /* # of "1" bits per character */
|
||||
int mask; /* mask with 1 bit up */
|
||||
static char *erase[] = { /* backspace-space-backspace */
|
||||
"\010\040\010", /* space parity */
|
||||
"\010\040\010", /* odd parity */
|
||||
"\210\240\210", /* even parity */
|
||||
"\210\240\210", /* no parity */
|
||||
};
|
||||
|
||||
/* Initialize kill, erase, parity etc. (also after switching speeds). */
|
||||
|
|
@ -829,10 +793,10 @@ static char *get_logname(struct options *op, struct chardata *cp, struct termio
|
|||
|
||||
/* Do parity bit handling. */
|
||||
|
||||
if (c != (ascval = (c & 0177))) { /* "parity" bit on ? */
|
||||
if (c != (ascval = (c & 0177))) { /* "parity" bit on ? */
|
||||
for (bits = 1, mask = 1; mask & 0177; mask <<= 1)
|
||||
if (mask & ascval)
|
||||
bits++; /* count "1" bits */
|
||||
bits++; /* count "1" bits */
|
||||
cp->parity |= ((bits & 1) ? 1 : 2);
|
||||
}
|
||||
/* Do erase, kill and end-of-line processing. */
|
||||
|
|
@ -840,13 +804,13 @@ static char *get_logname(struct options *op, struct chardata *cp, struct termio
|
|||
switch (ascval) {
|
||||
case CR:
|
||||
case NL:
|
||||
*bp = 0; /* terminate logname */
|
||||
cp->eol = ascval; /* set end-of-line char */
|
||||
*bp = 0; /* terminate logname */
|
||||
cp->eol = ascval; /* set end-of-line char */
|
||||
break;
|
||||
case BS:
|
||||
case DEL:
|
||||
case '#':
|
||||
cp->erase = ascval; /* set erase character */
|
||||
cp->erase = ascval; /* set erase character */
|
||||
if (bp > logname) {
|
||||
(void) write(1, erase[cp->parity], 3);
|
||||
bp--;
|
||||
|
|
@ -854,7 +818,7 @@ static char *get_logname(struct options *op, struct chardata *cp, struct termio
|
|||
break;
|
||||
case CTL('U'):
|
||||
case '@':
|
||||
cp->kill = ascval; /* set kill character */
|
||||
cp->kill = ascval; /* set kill character */
|
||||
while (bp > logname) {
|
||||
(void) write(1, erase[cp->parity], 3);
|
||||
bp--;
|
||||
|
|
@ -868,8 +832,8 @@ static char *get_logname(struct options *op, struct chardata *cp, struct termio
|
|||
} else if (bp - logname >= sizeof(logname) - 1) {
|
||||
error("%s: input overrun", op->tty);
|
||||
} else {
|
||||
(void) write(1, &c, 1); /* echo the character */
|
||||
*bp++ = ascval; /* and store it */
|
||||
(void) write(1, &c, 1); /* echo the character */
|
||||
*bp++ = ascval; /* and store it */
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
|
@ -880,7 +844,7 @@ static char *get_logname(struct options *op, struct chardata *cp, struct termio
|
|||
if ((cp->capslock = caps_lock(logname))) {
|
||||
for (bp = logname; *bp; bp++)
|
||||
if (isupper(*bp))
|
||||
*bp = tolower(*bp); /* map name to lower case */
|
||||
*bp = tolower(*bp); /* map name to lower case */
|
||||
}
|
||||
return (logname);
|
||||
}
|
||||
|
|
@ -890,39 +854,39 @@ static void termio_final(struct options *op, struct termio *tp, struct chardata
|
|||
{
|
||||
/* General terminal-independent stuff. */
|
||||
|
||||
tp->c_iflag |= IXON | IXOFF; /* 2-way flow control */
|
||||
tp->c_iflag |= IXON | IXOFF; /* 2-way flow control */
|
||||
tp->c_lflag |= ICANON | ISIG | ECHO | ECHOE | ECHOK | ECHOKE;
|
||||
/* no longer| ECHOCTL | ECHOPRT */
|
||||
tp->c_oflag |= OPOST;
|
||||
/* tp->c_cflag = 0; */
|
||||
tp->c_cc[VINTR] = DEF_INTR; /* default interrupt */
|
||||
tp->c_cc[VQUIT] = DEF_QUIT; /* default quit */
|
||||
tp->c_cc[VEOF] = DEF_EOF; /* default EOF character */
|
||||
tp->c_cc[VINTR] = DEF_INTR; /* default interrupt */
|
||||
tp->c_cc[VQUIT] = DEF_QUIT; /* default quit */
|
||||
tp->c_cc[VEOF] = DEF_EOF; /* default EOF character */
|
||||
tp->c_cc[VEOL] = DEF_EOL;
|
||||
tp->c_cc[VSWTC] = DEF_SWITCH; /* default switch character */
|
||||
tp->c_cc[VSWTC] = DEF_SWITCH; /* default switch character */
|
||||
|
||||
/* Account for special characters seen in input. */
|
||||
|
||||
if (cp->eol == CR) {
|
||||
tp->c_iflag |= ICRNL; /* map CR in input to NL */
|
||||
tp->c_oflag |= ONLCR; /* map NL in output to CR-NL */
|
||||
tp->c_iflag |= ICRNL; /* map CR in input to NL */
|
||||
tp->c_oflag |= ONLCR; /* map NL in output to CR-NL */
|
||||
}
|
||||
tp->c_cc[VERASE] = cp->erase; /* set erase character */
|
||||
tp->c_cc[VKILL] = cp->kill; /* set kill character */
|
||||
tp->c_cc[VERASE] = cp->erase; /* set erase character */
|
||||
tp->c_cc[VKILL] = cp->kill; /* set kill character */
|
||||
|
||||
/* Account for the presence or absence of parity bits in input. */
|
||||
|
||||
switch (cp->parity) {
|
||||
case 0: /* space (always 0) parity */
|
||||
case 0: /* space (always 0) parity */
|
||||
break;
|
||||
case 1: /* odd parity */
|
||||
case 1: /* odd parity */
|
||||
tp->c_cflag |= PARODD;
|
||||
/* FALLTHROUGH */
|
||||
case 2: /* even parity */
|
||||
case 2: /* even parity */
|
||||
tp->c_cflag |= PARENB;
|
||||
tp->c_iflag |= INPCK | ISTRIP;
|
||||
/* FALLTHROUGH */
|
||||
case (1 | 2): /* no parity bit */
|
||||
case (1 | 2): /* no parity bit */
|
||||
tp->c_cflag &= ~CSIZE;
|
||||
tp->c_cflag |= CS7;
|
||||
break;
|
||||
|
|
@ -936,7 +900,7 @@ static void termio_final(struct options *op, struct termio *tp, struct chardata
|
|||
}
|
||||
/* Optionally enable hardware flow control */
|
||||
|
||||
#ifdef CRTSCTS
|
||||
#ifdef CRTSCTS
|
||||
if (op->flags & F_RTSCTS)
|
||||
tp->c_cflag |= CRTSCTS;
|
||||
#endif
|
||||
|
|
@ -963,11 +927,11 @@ static int caps_lock(const char *s)
|
|||
}
|
||||
|
||||
/* bcode - convert speed string to speed code; return 0 on failure */
|
||||
static int bcode(char *s)
|
||||
static int bcode(const char *s)
|
||||
{
|
||||
int r;
|
||||
unsigned long value;
|
||||
if (safe_strtoul(s, &value)) {
|
||||
if (safe_strtoul((char *)s, &value)) {
|
||||
return -1;
|
||||
}
|
||||
if ((r = bb_value_to_baud(value)) > 0) {
|
||||
|
|
@ -976,49 +940,44 @@ static int bcode(char *s)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* error - report errors to console or syslog; only understands %s and %m */
|
||||
|
||||
#define str2cpy(b,s1,s2) strcat(strcpy(b,s1),s2)
|
||||
|
||||
/*
|
||||
* output error messages
|
||||
*/
|
||||
static void error(const char *fmt, ...)
|
||||
{
|
||||
va_list va_alist;
|
||||
char buf[256], *bp;
|
||||
|
||||
#ifndef USE_SYSLOG
|
||||
int fd;
|
||||
#endif
|
||||
|
||||
#ifdef USE_SYSLOG
|
||||
buf[0] = '\0';
|
||||
bp = buf;
|
||||
#else
|
||||
strncpy(buf, bb_applet_name, 256);
|
||||
strncat(buf, ": ", 256);
|
||||
buf[255] = 0;
|
||||
bp = buf + strlen(buf);
|
||||
#endif
|
||||
char buf[256];
|
||||
|
||||
#ifdef CONFIG_SYSLOGD
|
||||
va_start(va_alist, fmt);
|
||||
vsnprintf(bp, 256 - strlen(buf), fmt, va_alist);
|
||||
buf[255] = 0;
|
||||
va_end(va_alist);
|
||||
|
||||
#ifdef USE_SYSLOG
|
||||
vsnprintf(buf, sizeof(buf), fmt, va_alist);
|
||||
openlog(bb_applet_name, 0, LOG_AUTH);
|
||||
syslog(LOG_ERR, "%s", buf);
|
||||
closelog();
|
||||
#else
|
||||
strncat(bp, "\r\n", 256 - strlen(buf));
|
||||
buf[255] = 0;
|
||||
int fd;
|
||||
size_t l;
|
||||
|
||||
snprintf(buf, sizeof(buf), "%s: ", bb_applet_name);
|
||||
l = strlen(buf);
|
||||
va_start(va_alist, fmt);
|
||||
vsnprintf(buf + l, sizeof(buf) - l, fmt, va_alist);
|
||||
l = strlen(buf);
|
||||
/* truncate if need */
|
||||
if((l + 3) > sizeof(buf))
|
||||
l = sizeof(buf) - 3;
|
||||
/* add \r\n always */
|
||||
buf[l++] = '\r';
|
||||
buf[l++] = '\n';
|
||||
buf[l] = 0;
|
||||
if ((fd = open("/dev/console", 1)) >= 0) {
|
||||
write(fd, buf, strlen(buf));
|
||||
write(fd, buf, l);
|
||||
close(fd);
|
||||
}
|
||||
#endif
|
||||
(void) sleep((unsigned) 10); /* be kind to init(8) */
|
||||
|
||||
va_end(va_alist);
|
||||
|
||||
(void) sleep((unsigned) 10); /* be kind to init(8) */
|
||||
exit(1);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user