4f294c247f
This patch mainly copies and modifies files existing in the current libc implementing minix specific functions. To keep consisten with the NetBSD libc, we remove namespace stubs and we use "namespace.h" and weak links.
76 lines
1.4 KiB
C
76 lines
1.4 KiB
C
/* getpass() - read a password Author: Kees J. Bot
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* Feb 16 1993
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*/
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#include <sys/cdefs.h>
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#include "namespace.h"
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#define _MINIX
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <signal.h>
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#include <termios.h>
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#include <string.h>
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#ifdef __weak_alias
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__weak_alias(getpass, _getpass)
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#endif
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static int intr;
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static void catch(int sig)
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{
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intr= 1;
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}
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char *getpass(const char *prompt)
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{
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struct sigaction osa, sa;
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struct termios cooked, raw;
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static char password[32+1];
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int fd, n= 0;
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/* Try to open the controlling terminal. */
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if ((fd= open("/dev/tty", O_RDONLY)) < 0) return NULL;
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/* Trap interrupts unless ignored. */
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intr= 0;
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sigaction(SIGINT, NULL, &osa);
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if (osa.sa_handler != SIG_IGN) {
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sigemptyset(&sa.sa_mask);
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sa.sa_flags= 0;
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sa.sa_handler= catch;
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sigaction(SIGINT, &sa, &osa);
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}
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/* Set the terminal to non-echo mode. */
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tcgetattr(fd, &cooked);
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raw= cooked;
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raw.c_iflag|= ICRNL;
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raw.c_lflag&= ~ECHO;
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raw.c_lflag|= ECHONL;
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raw.c_oflag|= OPOST | ONLCR;
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tcsetattr(fd, TCSANOW, &raw);
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/* Print the prompt. (After setting non-echo!) */
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write(2, prompt, strlen(prompt));
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/* Read the password, 32 characters max. */
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while (read(fd, password+n, 1) > 0) {
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if (password[n] == '\n') break;
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if (n < 32) n++;
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}
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password[n]= 0;
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/* Terminal back to cooked mode. */
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tcsetattr(fd, TCSANOW, &cooked);
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close(fd);
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/* Interrupt? */
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sigaction(SIGINT, &osa, NULL);
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if (intr) raise(SIGINT);
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return password;
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}
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