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getty: simplify macros; improve VSWTC[H] compat
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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parent
6b1ce45598
commit
7073964b5f
@ -68,19 +68,16 @@ static FILE *dbf;
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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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/* 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_SWITCH 0 /* default switch char (none) */
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/*
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* When multiple baud rates are specified on the command line,
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@ -293,9 +290,12 @@ static void termios_final(void)
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#ifdef VSWTC
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G.termios.c_cc[VSWTC] = DEF_SWITCH;
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#endif
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#ifdef VSWTCH
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G.termios.c_cc[VSWTCH] = DEF_SWITCH;
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#endif
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/* Account for special characters seen in input */
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if (G.eol == CR) {
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if (G.eol == '\r') {
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G.termios.c_iflag |= ICRNL; /* map CR in input to NL */
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/* already done by termios_init */
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/* G.termios.c_oflag |= ONLCR; map NL in output to CR-NL */
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@ -406,8 +406,8 @@ static char *get_logname(void)
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/* Do erase, kill and end-of-line processing */
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switch (c) {
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case CR:
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case NL:
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case '\r':
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case '\n':
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*bp = '\0';
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G.eol = c;
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goto got_logname;
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@ -456,7 +456,7 @@ int getty_main(int argc UNUSED_PARAM, char **argv)
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#ifdef ISSUE
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G.issue = ISSUE; /* default issue file */
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#endif
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G.eol = CR;
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G.eol = '\r';
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/* Parse command-line arguments */
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parse_args(argv);
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@ -545,7 +545,6 @@ int getty_main(int argc UNUSED_PARAM, char **argv)
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/* Optionally wait for CR or LF before writing /etc/issue */
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if (option_mask32 & F_WAITCRLF) {
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char ch;
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debug("waiting for cr-lf\n");
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while (safe_read(STDIN_FILENO, &ch, 1) == 1) {
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debug("read %x\n", (unsigned char)ch);
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