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getpass: Don't fail if stdin is not a tty

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We don't need to manipulate the tty state (such as turning off
echo) when prompting for passwords if we're not reading from a tty.

Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>

Autobuild-User(master): Alexander Bokovoy <ab@samba.org>
Autobuild-Date(master): Fri Apr  5 07:34:37 CEST 2013 on sn-devel-104
This commit is contained in:
Stef Walter 2013-04-04 15:55:10 +02:00 committed by Alexander Bokovoy
parent 7f366d745c
commit ca0d38596d
1 changed files with 29 additions and 23 deletions
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6
lib/util/getpass.c
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@ -170,6 +170,8 @@ int samba_getpass(const char *prompt,
return -1; return -1;
} }
if (isatty (STDIN_FILENO)) {
ZERO_STRUCT(attr); ZERO_STRUCT(attr);
ZERO_STRUCT(old_attr); ZERO_STRUCT(old_attr);
@ -196,6 +198,7 @@ int samba_getpass(const char *prompt,
perror("tcsetattr"); perror("tcsetattr");
return -1; return -1;
} }
}
/* disable nonblocking I/O */ /* disable nonblocking I/O */
if (fd & O_NDELAY) { if (fd & O_NDELAY) {
@ -204,8 +207,11 @@ int samba_getpass(const char *prompt,
ok = samba_gets(prompt, buf, len, verify); ok = samba_gets(prompt, buf, len, verify);
if (isatty (STDIN_FILENO)) {
/* reset terminal */ /* reset terminal */
tcsetattr(STDIN_FILENO, TCSANOW, &old_attr); tcsetattr(STDIN_FILENO, TCSANOW, &old_attr);
}
/* close fd */ /* close fd */
if (fd & O_NDELAY) { if (fd & O_NDELAY) {