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property (3)

>> property (3) ( FreeBSD man: Библиотечные вызовы )

BSD mandoc

NAME

properties_read

 
propery_find

 
properties_free

 - functions to allow creating simple property lists from ASCII file data

LIBRARY

Lb libutil

SYNOPSIS

#include <sys/types.h>
#include <libutil.h>
properties properties_read (int fd);
char * property_find (properties list const char *name);
void properties_free (properties list);

DESCRIPTION

typedef struct _properties {
        struct _properties *next;
        char *name;
        char *value;
} *properties;

The function properties_read ();
reads Fa name = value pairs from the file descriptor passed in Fa fd and returns the head of a new property list, assuming that the file's contents have been parsed properly, or NULL in case of error.

The property_find ();
function returns the associated value string for the property named Fa name if found, otherwise NULL. The value returned may be up to PROPERTY_MAX_VALUE bytes in length.

The properties_free ();
function is used to free the structure returned by properties_read ();
when it is no longer needed.

FILE FORMAT

Each property in the file is assumed to have the format of Fa name = value where Fa name is an alphanumeric string (and any punctuation not including the `=' character) and Fa value is an arbitary string of text terminated by a newline character. If newlines are desired, the entire value should be enclosed in { } (curly-bracket) characters. Any line beginning with a # or ; character is assumed to be a comment and will be ignored.