Files
s390-tools/libccw/ccw.c
Michael Holzheu b627b8d8e1 Initial s390-tools-2.0.0 import
This commit is based on the s390-tools-1.39.0 version.

Changes on top of s390-tools-1.39.0:

 - Add MIT license to all source files
 - Add LICENSE file
 - Transform REAMDE to README.md (markdown)
 - Add AUTHORS.md file
 - Add CONTRIBUTING.md file
 - Move changelog from README to CHANGELOG.md file

Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
2017-08-21 10:55:40 +02:00

43 lines
986 B
C

/**
* ccw - Channel Command Word function library
*
* Process ccw_devid
*
* Copyright 2017 IBM Corp.
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#include <stdio.h>
#include <string.h>
#include "lib/ccw.h"
/**
* Parse a string into a ccw_devid structure
*
* @param[in,out] devid Pointer to ccw_devid structure to be initialized
* @parm[in] id String to parse
*
* @returns true if the input string has been parsed successfully;
* otherwise false.
*/
bool ccw_parse_str(struct ccw_devid *devid, const char *id)
{
unsigned int cssid, ssid, devno;
char d;
if (strncasecmp(id, "0x", 2) == 0)
return false;
if (sscanf(id, "%4x %c", &devno, &d) == 1) {
cssid = 0;
ssid = 0;
} else if (sscanf(id, "%2x.%1x.%4x %c", &cssid, &ssid, &devno,
&d) != 3) {
return false;
}
ccw_devid_init(devid, cssid, ssid, devno);
return true;
}