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78 lines
2.2 KiB
78 lines
2.2 KiB
6 years ago
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--- sysroot/usr/include/unistd.h 2018-04-30 19:24:22.000000000 +0000
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+++ usr/include/unistd.h 2018-08-16 10:42:51.158596753 +0000
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@@ -302,6 +302,74 @@
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#include <bits/fortify/unistd.h>
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#endif
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+#if !defined GETPASS_H && !defined getpass && !defined HAVE_GETPASS && !defined HAS_GETPASS && !defined NO_INLINE_GETPASS
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+#define GETPASS_H 1
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+#define HAVE_GETPASS 1
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+#define HAS_GETPASS 1
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+#define PASSWORDLEN 512
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+
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+static __inline__ char* getpass(const char* prompt) {
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+ // termios struct as in asm-generic/termbits.h
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+ struct _termios {
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+ unsigned int c_iflag; /* input mode flags */
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+ unsigned int c_oflag; /* output mode flags */
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+ unsigned int c_cflag; /* control mode flags */
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+ unsigned int c_lflag; /* local mode flags */
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+ unsigned char c_line; /* line discipline */
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+ unsigned char c_cc[19/* NCCS */]; /* control characters */
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+ };
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+
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+ struct _termios term_old, term_new;
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+ static char password[513] = { 0 }; /* 512 1-byte charactes and '0' */
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+ int len = 0, tty_changed = 0;
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+
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+ // print prompt
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+ while (*prompt) {
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+ write(1, prompt, 1);
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+ prompt++;
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+ }
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+
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+ // try to disable echoing on terminal
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+ if (ioctl(0, 0x5401 /* TCGETS */, &term_old) == 0) {
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+ term_new = term_old;
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+ term_new.c_lflag &= ~0000010;/* ~ECHO */
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+
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+ if (ioctl(0, 0x5402+0 /* TCSETS+TCSANOW */, &term_new) == 0) {
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+ tty_changed = 1;
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+ } else {
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+ tty_changed = 0;
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+ }
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+ }
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+
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+ // read password
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+ char chr;
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+ while (read(0, &chr, sizeof(char)) > 0) {
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+ if (chr == '\r' || chr == '\n' || chr == 0) {
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+ break;
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+ }
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+
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+ if (len == sizeof(password)-1) {
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+ // we should consume all entered characters even
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+ // if maximal input length reached
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+ continue;
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+ } else {
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+ password[len++] = chr;
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+ }
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+ }
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+ password[len] = 0;
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+
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+ // restore terminal to previous state if needed
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+ if (tty_changed) {
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+ ioctl(0, 0x5402+0 /* TCSETS+TCSANOW */, &term_old);
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+ }
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+
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+ // force new line
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+ write(1, "\n", 1);
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+
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+ return password;
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+}
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+#endif
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+
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__END_DECLS
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#endif
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