au_fetch_tok, au_print_tok, au_read_rec - perform I/O involving an audit record

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Library
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Description
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.Lb libbsm

.In bsm/libbsm.h int au_fetch_tok tokenstr_t *tok u_char *buf int len void
.Fo au_print_tok FILE *outfp tokenstr_t *tok char *del char raw char sfrm
.Fc int au_read_rec FILE *fp u_char **buf

These interfaces support input and output (I/O) involving audit records, internalizing an audit record from a byte stream, converting a token to either a raw or default string, and reading a single record from a file.

The au_fetch_tok function reads a token from the passed buffer buf of length len bytes, and returns a pointer to the token via tok.

The au_print_tok function prints a string form of the token tok to the file output stream outfp, either in default mode, or raw mode if raw is set non-zero. The delimiter del is used when printing.

The au_read_rec function reads an audit record from the file stream fp, and returns an allocated memory buffer containing the record via *buf, which must be freed by the caller using free(3).

A typical use of these routines might open a file with fopen(3), then read records from the file sequentially by calling au_read_rec. Each record would be broken down into components tokens through sequential calls to au_fetch_tok on the buffer, and then invoking au_print_tok to print each token to an output stream such as stdout. On completion of the processing of each record, a call to free(3) would be used to free the record buffer. Finally, the source stream would be closed by a call to fclose(3).

The au_fetch_tok and au_read_rec functions return 0 on success, or -1 on failure along with additional error information returned via errno.

free(3), libbsm(3)

The OpenBSM implementation was created by McAfee Research, the security division of McAfee Inc., under contract to Apple Computer, Inc., in 2004. It was subsequently adopted by the TrustedBSD Project as the foundation for the OpenBSM distribution.

.An -nosplit This software was created by
.An Robert Watson ,
.An Wayne Salamon , and
.An Suresh Krishnaswamy for McAfee Research, the security research division of McAfee, Inc., under contract to Apple Computer, Inc.

The Basic Security Module (BSM) interface to audit records and audit event stream format were defined by Sun Microsystems.

The errno variable may not always be properly set in the event of an error.

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