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Add support for devfs device names.

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This commit is contained in:
Matt Kraai 2001-07-23 14:52:08 +00:00
parent 0139ca92ff
commit 439e3df653
17 changed files with 102 additions and 58 deletions
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1
Changelog
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@ -9,6 +9,7 @@
Other Changes: Other Changes:
* Vladimir Oleynik -- Fixed tr to support 'tr a-z A-Z' syntax, * Vladimir Oleynik -- Fixed tr to support 'tr a-z A-Z' syntax,
many ash corrections, and others optimizations, and cleanups. many ash corrections, and others optimizations, and cleanups.
* Matt Kraai -- Added BB_FEATURE_DEVFS to enable devfs device names.
-Not Yet Released -Not Yet Released

3
Config.h
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@ -407,6 +407,9 @@
// Support for TELNET to pass TERM type to remote host. Adds 384 bytes. // Support for TELNET to pass TERM type to remote host. Adds 384 bytes.
#define BB_FEATURE_TELNET_TTYPE #define BB_FEATURE_TELNET_TTYPE
// //
// Support for devfs.
//#define BB_FEATURE_DEVFS
//
// End of Features List // End of Features List
// //
// //

4
console-tools/dumpkmap.c
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@ -51,9 +51,9 @@ int dumpkmap_main(int argc, char **argv)
show_usage(); show_usage();
} }
fd = open("/dev/tty0", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) { if (fd < 0) {
perror_msg("Error opening /dev/tty0"); perror_msg("Error opening " CURRENT_VC);
return EXIT_FAILURE; return EXIT_FAILURE;
} }

4
console-tools/loadacm.c
View File

@ -37,9 +37,9 @@ int loadacm_main(int argc, char **argv)
show_usage(); show_usage();
} }
fd = open("/dev/tty", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) { if (fd < 0) {
perror_msg_and_die("Error opening /dev/tty1"); perror_msg_and_die("Error opening " CURRENT_VC);
} }
if (screen_map_load(fd, stdin)) { if (screen_map_load(fd, stdin)) {

4
console-tools/loadfont.c
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@ -46,9 +46,9 @@ extern int loadfont_main(int argc, char **argv)
if (argc != 1) if (argc != 1)
show_usage(); show_usage();
fd = open("/dev/tty0", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) if (fd < 0)
perror_msg_and_die("Error opening /dev/tty0"); perror_msg_and_die("Error opening " CURRENT_VC);
loadnewfont(fd); loadnewfont(fd);
return EXIT_SUCCESS; return EXIT_SUCCESS;

4
console-tools/loadkmap.c
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@ -53,9 +53,9 @@ int loadkmap_main(int argc, char **argv)
if (argc != 1) if (argc != 1)
show_usage(); show_usage();
fd = open("/dev/tty0", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) if (fd < 0)
perror_msg_and_die("Error opening /dev/tty0"); perror_msg_and_die("Error opening " CURRENT_VC);
read(0, buff, 7); read(0, buff, 7);
if (0 != strncmp(buff, BINARY_KEYMAP_MAGIC, 7)) if (0 != strncmp(buff, BINARY_KEYMAP_MAGIC, 7))

4
dumpkmap.c
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@ -51,9 +51,9 @@ int dumpkmap_main(int argc, char **argv)
show_usage(); show_usage();
} }
fd = open("/dev/tty0", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) { if (fd < 0) {
perror_msg("Error opening /dev/tty0"); perror_msg("Error opening " CURRENT_VC);
return EXIT_FAILURE; return EXIT_FAILURE;
} }

28
include/libbb.h
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@ -288,4 +288,32 @@ extern const char * const name_longer_than_foo;
extern const char * const unknown; extern const char * const unknown;
extern const char * const can_not_create_raw_socket; extern const char * const can_not_create_raw_socket;
#ifdef BB_FEATURE_DEVFS
# define CURRENT_VC "/dev/vc/0"
# define VC_1 "/dev/vc/1"
# define VC_2 "/dev/vc/2"
# define VC_3 "/dev/vc/3"
# define VC_4 "/dev/vc/4"
# define VC_5 "/dev/vc/5"
# define SC_0 "/dev/tts/0"
# define SC_1 "/dev/tts/1"
# define VC_FORMAT "/dev/vc/%d"
# define SC_FORMAT "/dev/tts/%d"
#else
# define CURRENT_VC "/dev/tty0"
# define VC_1 "/dev/tty1"
# define VC_2 "/dev/tty2"
# define VC_3 "/dev/tty3"
# define VC_4 "/dev/tty4"
# define VC_5 "/dev/tty5"
# define SC_0 "/dev/ttyS0"
# define SC_1 "/dev/ttyS1"
# define VC_FORMAT "/dev/tty%d"
# define SC_FORMAT "/dev/ttyS%d"
#endif
/* The following devices are the same on devfs and non-devfs systems. */
#define CURRENT_TTY "/dev/tty"
#define CONSOLE_DEV "/dev/console"
#endif /* __LIBBB_H__ */ #endif /* __LIBBB_H__ */

26
init.c
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@ -117,13 +117,6 @@ static const int RB_AUTOBOOT = 0x01234567;
#endif #endif
#define VT_PRIMARY "/dev/tty1" /* Primary virtual console */
#define VT_SECONDARY "/dev/tty2" /* Virtual console */
#define VT_THIRD "/dev/tty3" /* Virtual console */
#define VT_FOURTH "/dev/tty4" /* Virtual console */
#define VT_LOG "/dev/tty5" /* Virtual console */
#define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */
#define SERIAL_CON1 "/dev/ttyS1" /* Serial console */
#define SHELL "/bin/sh" /* Default shell */ #define SHELL "/bin/sh" /* Default shell */
#define LOGIN_SHELL "-" SHELL /* Default login shell */ #define LOGIN_SHELL "-" SHELL /* Default login shell */
#define INITTAB "/etc/inittab" /* inittab file location */ #define INITTAB "/etc/inittab" /* inittab file location */
@ -176,10 +169,10 @@ struct initActionTag {
static initAction *initActionList = NULL; static initAction *initActionList = NULL;
static char *secondConsole = VT_SECONDARY; static char *secondConsole = VC_2;
static char *thirdConsole = VT_THIRD; static char *thirdConsole = VC_3;
static char *fourthConsole = VT_FOURTH; static char *fourthConsole = VC_4;
static char *log = VT_LOG; static char *log = VC_5;
static int kernelVersion = 0; static int kernelVersion = 0;
static char termType[32] = "TERM=linux"; static char termType[32] = "TERM=linux";
static char console[32] = _PATH_CONSOLE; static char console[32] = _PATH_CONSOLE;
@ -341,20 +334,19 @@ static void console_init()
else if ((s = getenv("console")) != NULL) { else if ((s = getenv("console")) != NULL) {
/* remap tty[ab] to /dev/ttyS[01] */ /* remap tty[ab] to /dev/ttyS[01] */
if (strcmp(s, "ttya") == 0) if (strcmp(s, "ttya") == 0)
safe_strncpy(console, SERIAL_CON0, sizeof(console)); safe_strncpy(console, SC_0, sizeof(console));
else if (strcmp(s, "ttyb") == 0) else if (strcmp(s, "ttyb") == 0)
safe_strncpy(console, SERIAL_CON1, sizeof(console)); safe_strncpy(console, SC_1, sizeof(console));
} }
#endif #endif
else { else {
/* 2.2 kernels: identify the real console backend and try to use it */ /* 2.2 kernels: identify the real console backend and try to use it */
if (ioctl(0, TIOCGSERIAL, &sr) == 0) { if (ioctl(0, TIOCGSERIAL, &sr) == 0) {
/* this is a serial console */ /* this is a serial console */
snprintf(console, sizeof(console) - 1, "/dev/ttyS%d", sr.line); snprintf(console, sizeof(console) - 1, SC_FORMAT, sr.line);
} else if (ioctl(0, VT_GETSTATE, &vt) == 0) { } else if (ioctl(0, VT_GETSTATE, &vt) == 0) {
/* this is linux virtual tty */ /* this is linux virtual tty */
snprintf(console, sizeof(console) - 1, "/dev/tty%d", snprintf(console, sizeof(console) - 1, VC_FORMAT, vt.v_active);
vt.v_active);
} else { } else {
safe_strncpy(console, _PATH_CONSOLE, sizeof(console)); safe_strncpy(console, _PATH_CONSOLE, sizeof(console));
tried_devcons++; tried_devcons++;
@ -371,7 +363,7 @@ static void console_init()
/* Can't open selected console -- try vt1 */ /* Can't open selected console -- try vt1 */
if (!tried_vtprimary) { if (!tried_vtprimary) {
tried_vtprimary++; tried_vtprimary++;
safe_strncpy(console, VT_PRIMARY, sizeof(console)); safe_strncpy(console, VC_1, sizeof(console));
continue; continue;
} }
break; break;

26
init/init.c
View File

@ -117,13 +117,6 @@ static const int RB_AUTOBOOT = 0x01234567;
#endif #endif
#define VT_PRIMARY "/dev/tty1" /* Primary virtual console */
#define VT_SECONDARY "/dev/tty2" /* Virtual console */
#define VT_THIRD "/dev/tty3" /* Virtual console */
#define VT_FOURTH "/dev/tty4" /* Virtual console */
#define VT_LOG "/dev/tty5" /* Virtual console */
#define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */
#define SERIAL_CON1 "/dev/ttyS1" /* Serial console */
#define SHELL "/bin/sh" /* Default shell */ #define SHELL "/bin/sh" /* Default shell */
#define LOGIN_SHELL "-" SHELL /* Default login shell */ #define LOGIN_SHELL "-" SHELL /* Default login shell */
#define INITTAB "/etc/inittab" /* inittab file location */ #define INITTAB "/etc/inittab" /* inittab file location */
@ -176,10 +169,10 @@ struct initActionTag {
static initAction *initActionList = NULL; static initAction *initActionList = NULL;
static char *secondConsole = VT_SECONDARY; static char *secondConsole = VC_2;
static char *thirdConsole = VT_THIRD; static char *thirdConsole = VC_3;
static char *fourthConsole = VT_FOURTH; static char *fourthConsole = VC_4;
static char *log = VT_LOG; static char *log = VC_5;
static int kernelVersion = 0; static int kernelVersion = 0;
static char termType[32] = "TERM=linux"; static char termType[32] = "TERM=linux";
static char console[32] = _PATH_CONSOLE; static char console[32] = _PATH_CONSOLE;
@ -341,20 +334,19 @@ static void console_init()
else if ((s = getenv("console")) != NULL) { else if ((s = getenv("console")) != NULL) {
/* remap tty[ab] to /dev/ttyS[01] */ /* remap tty[ab] to /dev/ttyS[01] */
if (strcmp(s, "ttya") == 0) if (strcmp(s, "ttya") == 0)
safe_strncpy(console, SERIAL_CON0, sizeof(console)); safe_strncpy(console, SC_0, sizeof(console));
else if (strcmp(s, "ttyb") == 0) else if (strcmp(s, "ttyb") == 0)
safe_strncpy(console, SERIAL_CON1, sizeof(console)); safe_strncpy(console, SC_1, sizeof(console));
} }
#endif #endif
else { else {
/* 2.2 kernels: identify the real console backend and try to use it */ /* 2.2 kernels: identify the real console backend and try to use it */
if (ioctl(0, TIOCGSERIAL, &sr) == 0) { if (ioctl(0, TIOCGSERIAL, &sr) == 0) {
/* this is a serial console */ /* this is a serial console */
snprintf(console, sizeof(console) - 1, "/dev/ttyS%d", sr.line); snprintf(console, sizeof(console) - 1, SC_FORMAT, sr.line);
} else if (ioctl(0, VT_GETSTATE, &vt) == 0) { } else if (ioctl(0, VT_GETSTATE, &vt) == 0) {
/* this is linux virtual tty */ /* this is linux virtual tty */
snprintf(console, sizeof(console) - 1, "/dev/tty%d", snprintf(console, sizeof(console) - 1, VC_FORMAT, vt.v_active);
vt.v_active);
} else { } else {
safe_strncpy(console, _PATH_CONSOLE, sizeof(console)); safe_strncpy(console, _PATH_CONSOLE, sizeof(console));
tried_devcons++; tried_devcons++;
@ -371,7 +363,7 @@ static void console_init()
/* Can't open selected console -- try vt1 */ /* Can't open selected console -- try vt1 */
if (!tried_vtprimary) { if (!tried_vtprimary) {
tried_vtprimary++; tried_vtprimary++;
safe_strncpy(console, VT_PRIMARY, sizeof(console)); safe_strncpy(console, VC_1, sizeof(console));
continue; continue;
} }
break; break;

8
libbb/get_console.c
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@ -98,15 +98,15 @@ int get_console_fd(char *tty_name)
return fd; return fd;
} }
fd = open_a_console("/dev/tty"); fd = open_a_console(CURRENT_TTY);
if (fd >= 0) if (fd >= 0)
return fd; return fd;
fd = open_a_console("/dev/tty0"); fd = open_a_console(CURRENT_VC);
if (fd >= 0) if (fd >= 0)
return fd; return fd;
fd = open_a_console("/dev/console"); fd = open_a_console(CONSOLE_DEV);
if (fd >= 0) if (fd >= 0)
return fd; return fd;
@ -114,7 +114,7 @@ int get_console_fd(char *tty_name)
if (is_a_console(fd)) if (is_a_console(fd))
return fd; return fd;
error_msg("Couldnt get a file descriptor referring to the console"); error_msg("Couldn't get a file descriptor referring to the console");
return -1; /* total failure */ return -1; /* total failure */
} }

28
libbb/libbb.h
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@ -288,4 +288,32 @@ extern const char * const name_longer_than_foo;
extern const char * const unknown; extern const char * const unknown;
extern const char * const can_not_create_raw_socket; extern const char * const can_not_create_raw_socket;
#ifdef BB_FEATURE_DEVFS
# define CURRENT_VC "/dev/vc/0"
# define VC_1 "/dev/vc/1"
# define VC_2 "/dev/vc/2"
# define VC_3 "/dev/vc/3"
# define VC_4 "/dev/vc/4"
# define VC_5 "/dev/vc/5"
# define SC_0 "/dev/tts/0"
# define SC_1 "/dev/tts/1"
# define VC_FORMAT "/dev/vc/%d"
# define SC_FORMAT "/dev/tts/%d"
#else
# define CURRENT_VC "/dev/tty0"
# define VC_1 "/dev/tty1"
# define VC_2 "/dev/tty2"
# define VC_3 "/dev/tty3"
# define VC_4 "/dev/tty4"
# define VC_5 "/dev/tty5"
# define SC_0 "/dev/ttyS0"
# define SC_1 "/dev/ttyS1"
# define VC_FORMAT "/dev/tty%d"
# define SC_FORMAT "/dev/ttyS%d"
#endif
/* The following devices are the same on devfs and non-devfs systems. */
#define CURRENT_TTY "/dev/tty"
#define CONSOLE_DEV "/dev/console"
#endif /* __LIBBB_H__ */ #endif /* __LIBBB_H__ */

4
loadacm.c
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@ -37,9 +37,9 @@ int loadacm_main(int argc, char **argv)
show_usage(); show_usage();
} }
fd = open("/dev/tty", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) { if (fd < 0) {
perror_msg_and_die("Error opening /dev/tty1"); perror_msg_and_die("Error opening " CURRENT_VC);
} }
if (screen_map_load(fd, stdin)) { if (screen_map_load(fd, stdin)) {

4
loadfont.c
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@ -46,9 +46,9 @@ extern int loadfont_main(int argc, char **argv)
if (argc != 1) if (argc != 1)
show_usage(); show_usage();
fd = open("/dev/tty0", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) if (fd < 0)
perror_msg_and_die("Error opening /dev/tty0"); perror_msg_and_die("Error opening " CURRENT_VC);
loadnewfont(fd); loadnewfont(fd);
return EXIT_SUCCESS; return EXIT_SUCCESS;

4
loadkmap.c
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@ -53,9 +53,9 @@ int loadkmap_main(int argc, char **argv)
if (argc != 1) if (argc != 1)
show_usage(); show_usage();
fd = open("/dev/tty0", O_RDWR); fd = open(CURRENT_VC, O_RDWR);
if (fd < 0) if (fd < 0)
perror_msg_and_die("Error opening /dev/tty0"); perror_msg_and_die("Error opening " CURRENT_VC);
read(0, buff, 7); read(0, buff, 7);
if (0 != strncmp(buff, BINARY_KEYMAP_MAGIC, 7)) if (0 != strncmp(buff, BINARY_KEYMAP_MAGIC, 7))

4
more.c
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@ -79,9 +79,9 @@ extern int more_main(int argc, char **argv)
/* not use inputing from terminal if usage: more > outfile */ /* not use inputing from terminal if usage: more > outfile */
if(isatty(fileno(stdout))) { if(isatty(fileno(stdout))) {
cin = fopen("/dev/tty", "r"); cin = fopen(CURRENT_TTY, "r");
if (!cin) if (!cin)
cin = xfopen("/dev/console", "r"); cin = xfopen(CONSOLE_DEV, "r");
please_display_more_prompt = 0; please_display_more_prompt = 0;
#ifdef BB_FEATURE_USE_TERMIOS #ifdef BB_FEATURE_USE_TERMIOS
getTermSettings(fileno(cin), &initial_settings); getTermSettings(fileno(cin), &initial_settings);

4
util-linux/more.c
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@ -79,9 +79,9 @@ extern int more_main(int argc, char **argv)
/* not use inputing from terminal if usage: more > outfile */ /* not use inputing from terminal if usage: more > outfile */
if(isatty(fileno(stdout))) { if(isatty(fileno(stdout))) {
cin = fopen("/dev/tty", "r"); cin = fopen(CURRENT_TTY, "r");
if (!cin) if (!cin)
cin = xfopen("/dev/console", "r"); cin = xfopen(CONSOLE_DEV, "r");
please_display_more_prompt = 0; please_display_more_prompt = 0;
#ifdef BB_FEATURE_USE_TERMIOS #ifdef BB_FEATURE_USE_TERMIOS
getTermSettings(fileno(cin), &initial_settings); getTermSettings(fileno(cin), &initial_settings);