svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
form_field_buffer(3x)
form_field_buffer(3x) Library calls form_field_buffer(3x)
NAME
form_field_buffer - field buffer control
SYNOPSIS
#include <form.h>
int set_field_buffer(FIELD *field, int buf, const char *value);
char *field_buffer(const FIELD *field, int buffer);
int set_field_status(FIELD *field, bool status);
bool field_status(const FIELD *field);
int set_max_field(FIELD *field, int max);
DESCRIPTION
The function set_field_buffer sets the numbered buffer of the given
field to contain a given string:
• Buffer 0 is the displayed value of the field.
• Other numbered buffers may be allocated by applications through
the nbuf argument of (see form_field_new(3X)) but are not manip‐
ulated by the forms library.
The function field_buffer returns a pointer to the contents of the
given numbered buffer:
• The buffer contents always have the same length, and are padded
with trailing spaces as needed to ensure this length is the
same.
• The buffer may contain leading spaces, depending on how it was
set.
• The buffer contents are set with set_field_buffer, or as a side
effect of any editing operations on the corresponding field.
• Editing operations are based on the window which displays the
field, rather than a string. The window contains only printable
characters, and is filled with blanks. If you want the raw
data, you must write your own routine that copies the value out
of the buffer and removes the leading and trailing spaces.
• Because editing operations change the content of the buffer to
correspond to the window, you should not rely on using buffers
for long-term storage of form data.
The function set_field_status sets the associated status flag of field;
field_status gets the current value. The status flag is set to a
nonzero value whenever the field changes.
The function set_max_field sets the maximum size for a dynamic field.
An argument of 0 turns off any maximum size threshold for that field.
RETURN VALUE
The field_buffer function returns NULL on error. It sets errno accord‐
ing to their success:
E_OK The routine succeeded.
E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
The field_status function returns TRUE or FALSE.
The remaining routines return one of the following:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno(3)).
E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
box; cbp-1 | cbp-1 l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
ity library/ncurses = Stability Uncommitted
NOTES
When configured for wide characters, field_buffer returns a pointer to
temporary storage (allocated and freed by the library). The applica‐
tion should not attempt to modify the data. It will be freed on the
next call to field_buffer to return the same buffer.
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at:
https://github.com/oracle/solaris-userland
The original community source was downloaded from:
https://invisible-mirror.net/archives/ncurses/cur‐
rent/ncurses-6.5-20250614.tgz
Further information about this software can be found on the open source
community website at https://invisible-island.net/ncurses/.
PORTABILITY
These routines emulate the System V forms library. They were not sup‐
ported on Version 7 or BSD versions.
The set_max_field function checks for an ncurses extension O_IN‐
PUT_FIELD which allows a dynamic field to shrink if the new limit is
smaller than the current field size.
AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S.
Raymond.
SEE ALSO
curses(3X) and related pages whose names begin “form_” for detailed de‐
scriptions of the entry points.
ncurses 6.5 2024-12-28 form_field_buffer(3x)