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46 .TH TCGETATTR 3C "Aug 14, 2002"
48 tcgetattr \- get the parameters associated with the terminal
54 \fBint\fR \fBtcgetattr\fR(\fBint\fR \fIfildes\fR, \fBstruct termios *\fR\fItermios_p\fR);
60 The \fBtcgetattr()\fR function gets the parameters associated with the terminal
61 referred to by \fIfildes\fR and stores them in the \fBtermios\fR structure (see
62 \fBtermio\fR(7I)) referenced by \fItermios_p\fR. The \fIfildes\fR argument is
63 an open file descriptor associated with a terminal.
66 The \fItermios_p\fR argument is a pointer to a \fBtermios\fR structure.
69 The \fBtcgetattr()\fR operation is allowed from any process.
72 If the terminal device supports different input and output baud rates, the baud
73 rates stored in the \fBtermios\fR structure returned by \fBtcgetattr()\fR
74 reflect the actual baud rates, even if they are equal. If differing baud rates
75 are not supported, the rate returned as the output baud rate is the actual baud
76 rate. If the terminal device does not support split baud rates, the input baud
77 rate stored in the \fBtermios\fR structure will be 0.
81 Upon successful completion, \fB0\fR is returned. Otherwise, \fB\(mi1\fR is
82 returned and \fBerrno\fR is set to indicate the error.
86 The \fBtcgetattr()\fR function will fail if:
93 The \fIfildes\fR argument is not a valid file descriptor.
102 The file associated with \fIfildes\fR is not a terminal.
108 See \fBattributes\fR(5) for descriptions of the following attributes:
116 ATTRIBUTE TYPE ATTRIBUTE VALUE
118 Interface Stability Standard
120 MT-Level MT-Safe, and Async-Signal-Safe
126 \fBtcsetattr\fR(3C), \fBattributes\fR(5), \fBstandards\fR(5), \fBtermio\fR(7I)