Function parse_assignment

util/nvramtool/cli/nvramtool.c:695–718

* parse_assignment * * Parse the string 'arg' (which supposedly represents an assignment) into a * NAME and a VALUE. If 'arg' does not conform to the proper assignment * syntax, exit with a usage message. Otherwise, on return, 'arg' is broken * into substrings representing NAME and VALUE, and *name and *value are set * to point to these two substrings. ************************************

 * to point to these two substrings.
 ****************************************************************************/
static void parse_assignment(char arg[], const char **name, const char **value)
{
	static const size_t N_MATCHES = 4;
	regmatch_t match[N_MATCHES];
	regex_t assignment;

	compile_reg_expr(REG_EXTENDED | REG_NEWLINE, assignment_regex, &assignment);

	/* Does 'arg' conform to proper assignment syntax?  If not, exit with a
	 * usage message.
	 */
	if (regexec(&assignment, arg, N_MATCHES, match, 0))
		usage(stderr);

	/* Ok, we found a valid assignment.  Break it into two strings
	 * representing NAME and VALUE.
	 */
	arg[match[1].rm_eo] = '\0';
	arg[match[2].rm_eo] = '\0';
	*name = &arg[match[1].rm_so];
	*value = &arg[match[2].rm_so];

	regfree(&assignment);
}

/****************************************************************************
 * list_cmos_entry