project: fetchmail
programmer: Carl Harris, ceharris@mal.com
description: getpass() replacement which allows for long passwords.
-
+ This version hacked by Wilfred Teiken, allowing the
+ password to be piped to fetchmail.
+
***********************************************************************/
#include "config.h"
#include <stdio.h>
#include <signal.h>
#include <fcntl.h>
-#if defined(HAVE_UNISTD_H)
+#include <stdlib.h>
#include <unistd.h>
-#endif
#include "fetchmail.h"
-
-extern int optind;
+#include "gettext.h"
#define INPUT_BUF_SIZE PASSWORDLEN
-#if defined(HAVE_TERMIOS_H) && defined(HAVE_TCSETATTR)
-# include <termios.h>
-#else
-#if defined(HAVE_TERMIO_H)
-# include <sys/ioctl.h>
-# include <termio.h>
-#else
-#if defined(HAVE_SGTTY_H)
-# include <sgtty.h>
-#endif
-#endif
-#endif
+#include <termios.h>
static int ttyfd;
-#if defined(HAVE_TCSETATTR)
- static struct termios termb;
- static tcflag_t flags;
-#else
-#if defined(HAVE_TERMIO_H)
- static struct termio termb;
- static unsigned short flags;
-#else
-#if defined(HAVE_STTY)
- static struct sgttyb ttyb;
- static int flags;
-#endif
-#endif
-#endif
-
-void save_tty_state();
-void disable_tty_echo();
-void restore_tty_state();
-
-char *
-getpassword(prompt)
-char *prompt;
-{
-
-#if !(defined(HAVE_TCSETATTR) || defined(HAVE_TERMIO_H) || defined(HAVE_STTY))
-
-#if defined(HAVE_GETPASS)
- char *getpass();
- return getpass(prompt);
-#else
- fputs("ERROR: no support for getpassword() routine\n",stderr);
- exit(1);
-#endif
-
-#endif /* !(defined(HAVE_TCSETATTR) || ... */
-
- register char *p;
- register c;
- FILE *fi;
- static char pbuf[INPUT_BUF_SIZE];
- RETSIGTYPE (*sig)();
- RETSIGTYPE sigint_handler();
-
-
- /* get the file descriptor for the input device */
- if ((fi = fdopen(open("/dev/tty", 2), "r")) == NULL)
- fi = stdin;
- else
- setbuf(fi, (char *)NULL);
-
- /* store descriptor for the tty */
- ttyfd = fileno(fi);
-
- /* preserve tty state before turning off echo */
- save_tty_state();
-
- /* now that we have the current tty state, we can catch SIGINT and
- exit gracefully */
- sig = signal(SIGINT, sigint_handler);
-
- /* turn off echo on the tty */
- disable_tty_echo();
+static struct termios termb;
+static tcflag_t flags;
- /* display the prompt and get the input string */
- fprintf(stderr, "%s", prompt); fflush(stderr);
- for (p=pbuf; (c = getc(fi))!='\n' && c!=EOF;) {
- if (p < &pbuf[INPUT_BUF_SIZE - 1])
- *p++ = c;
- }
- *p = '\0';
-
- /* write a newline so cursor won't appear to hang */
- fprintf(stderr, "\n"); fflush(stderr);
-
- /* restore previous state of the tty */
- restore_tty_state();
-
- /* restore previous state of SIGINT */
- signal(SIGINT, sig);
-
- if (fi != stdin)
- fclose(fi);
-
- return(pbuf);
+static void save_tty_state(void);
+static void disable_tty_echo(void);
+static void restore_tty_state(void);
+static void sigint_handler(int);
+char *fm_getpassword(char *prompt)
+{
+ register char *p;
+ register int c;
+ FILE *fi;
+ static char pbuf[INPUT_BUF_SIZE];
+ SIGHANDLERTYPE sig = 0; /* initialization pacifies -Wall */
+
+ int istty = isatty(0);
+
+ /* get the file descriptor for the actual input device if it's a tty */
+ if (istty)
+ {
+ if ((fi = fdopen(open("/dev/tty", 2), "r")) == NULL)
+ fi = stdin;
+ else
+ setbuf(fi, (char *)NULL);
+ }
+ else
+ fi = stdin;
+
+ /* store descriptor for the tty */
+ ttyfd = fileno(fi);
+
+ if (istty)
+ {
+ /* preserve tty state before turning off echo */
+ save_tty_state();
+
+ /* now that we have the current tty state, we can catch SIGINT and
+ exit gracefully */
+ sig = set_signal_handler(SIGINT, sigint_handler);
+
+ /* turn off echo on the tty */
+ disable_tty_echo();
+
+ /* display the prompt and get the input string */
+ fprintf(stderr, "%s", prompt);
+ }
+
+ for (p = pbuf; (c = getc(fi))!='\n' && c!=EOF;)
+ {
+ if (p < &pbuf[INPUT_BUF_SIZE - 1])
+ *p++ = c;
+ }
+ *p = '\0';
+
+ /* write a newline so cursor won't appear to hang */
+ if (fi != stdin)
+ fprintf(stderr, "\n");
+
+ if (istty)
+ {
+ /* restore previous state of the tty */
+ restore_tty_state();
+
+ /* restore previous state of SIGINT */
+ set_signal_handler(SIGINT, sig);
+ }
+ if (fi != stdin)
+ fclose(fi); /* not checking should be safe, file mode was "r" */
+
+ return(pbuf);
}
-
-void
-save_tty_state ()
+static void save_tty_state (void)
{
-#if defined(HAVE_TCSETATTR)
- tcgetattr(ttyfd, &termb);
- flags = termb.c_lflag;
-#else
-#if defined(HAVE_TERMIO_H)
- ioctl(ttyfd, TCGETA, (char *) &termb);
- flags = termb.c_lflag;
-#else /* we HAVE_STTY */
- gtty(ttyfd, &ttyb);
- flags = ttyb.sg_flags;
-#endif
-#endif
+ tcgetattr(ttyfd, &termb);
+ flags = termb.c_lflag;
}
-
-void
-disable_tty_echo()
+static void disable_tty_echo(void)
{
- /* turn off echo on the tty */
-#if defined(HAVE_TCSETATTR)
- termb.c_lflag &= ~ECHO;
- tcsetattr(ttyfd, TCSAFLUSH, &termb);
-#else
-#if defined(HAVE_TERMIO_H)
- termb.c_lflag &= ~ECHO;
- ioctl(ttyfd, TCSETA, (char *) &termb);
-#else /* we HAVE_STTY */
- ttyb.sg_flags &= ~ECHO;
- stty(ttyfd, &ttyb);
-#endif
-#endif
+ /* turn off echo on the tty */
+ termb.c_lflag &= ~ECHO;
+ tcsetattr(ttyfd, TCSAFLUSH, &termb);
}
-
-
-void
-restore_tty_state()
+static void restore_tty_state(void)
{
- /* restore previous tty echo state */
-#if defined(HAVE_TCSETATTR)
- termb.c_lflag = flags;
- tcsetattr(ttyfd, TCSAFLUSH, &termb);
-#else
-#if defined(HAVE_TERMIO_H)
- termb.c_lflag = flags;
- ioctl(ttyfd, TCSETA, (char *) &termb);
-#else /* we HAVE_STTY */
- ttyb.sg_flags = flags;
- stty(ttyfd, &ttyb);
-#endif
-#endif
+ /* restore previous tty echo state */
+ termb.c_lflag = flags;
+ tcsetattr(ttyfd, TCSAFLUSH, &termb);
}
-
-RETSIGTYPE sigint_handler ()
+static void sigint_handler(int signum)
{
- restore_tty_state();
- error(1, 0, "\nCaught signal... bailing out.");
+ (void)signum;
+ restore_tty_state();
+ report(stderr, GT_("\nCaught SIGINT... bailing out.\n"));
+ exit(1);
}
+
+/* getpass.c ends here */
projects / ~andy / fetchmail / blobdiff