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PROPERTIES(3)         DragonFly Library Functions Manual         PROPERTIES(3)


properties_read, property_find, properties_free -- functions to allow creating simple property lists from ASCII file data


System Utilities Library (libutil, -lutil)


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


typedef struct _properties { struct _properties *next; char *name; char *value; } *properties; The function properties_read() reads name = value pairs from the file descriptor passed in 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 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.


Each property in the file is assumed to have the format of name = value where name is an alphanumeric string (and any punctuation not including the `=' character) and value is an arbitrary 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.


Jordan Hubbard


Simplistic. DragonFly 3.7 October 7, 1998 DragonFly 3.7

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