/*
 * Industrial I/O utilities - lsiio.c
 *
 * Copyright (c) 2010 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

#include <string.h>
#include <dirent.h>
#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/dir.h>
#include "iio_utils.h"

static enum verbosity {
	VERBLEVEL_DEFAULT,	/* 0 gives lspci behaviour */
	VERBLEVEL_SENSORS,	/* 1 lists sensors */
} verblevel = VERBLEVEL_DEFAULT;

const char *type_device = "iio:device";
const char *type_trigger = "trigger";

static inline int check_prefix(const char *str, const char *prefix)
{
	return strlen(str) > strlen(prefix) &&
	       strncmp(str, prefix, strlen(prefix)) == 0;
}

static inline int check_postfix(const char *str, const char *postfix)
{
	return strlen(str) > strlen(postfix) &&
	       strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
}

static int dump_channels(const char *dev_dir_name)
{
	DIR *dp;
	const struct dirent *ent;

	dp = opendir(dev_dir_name);
	if (!dp)
		return -errno;

	while (ent = readdir(dp), ent)
		if (check_prefix(ent->d_name, "in_") &&
		   (check_postfix(ent->d_name, "_raw") ||
		    check_postfix(ent->d_name, "_input")))
			printf("   %-10s\n", ent->d_name);

	return (closedir(dp) == -1) ? -errno : 0;
}

static int dump_one_device(const char *dev_dir_name)
{
	char name[IIO_MAX_NAME_LENGTH];
	int dev_idx;
	int ret;

	ret = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device), "%i",
		     &dev_idx);
	if (ret != 1)
		return -EINVAL;

	ret = read_sysfs_string("name", dev_dir_name, name);
	if (ret < 0)
		return ret;

	printf("Device %03d: %s\n", dev_idx, name);

	if (verblevel >= VERBLEVEL_SENSORS)
		return dump_channels(dev_dir_name);

	return 0;
}

static int dump_one_trigger(const char *dev_dir_name)
{
	char name[IIO_MAX_NAME_LENGTH];
	int dev_idx;
	int ret;

	ret = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger),
		     "%i", &dev_idx);
	if (ret != 1)
		return -EINVAL;

	ret = read_sysfs_string("name", dev_dir_name, name);
	if (ret < 0)
		return ret;

	printf("Trigger %03d: %s\n", dev_idx, name);

	return 0;
}

static int dump_devices(void)
{
	const struct dirent *ent;
	int ret;
	DIR *dp;

	dp = opendir(iio_dir);
	if (!dp) {
		fprintf(stderr, "No industrial I/O devices available\n");
		return -ENODEV;
	}

	while (ent = readdir(dp), ent) {
		if (check_prefix(ent->d_name, type_device)) {
			char *dev_dir_name;

			if (asprintf(&dev_dir_name, "%s%s", iio_dir,
				     ent->d_name) < 0) {
				ret = -ENOMEM;
				goto error_close_dir;
			}

			ret = dump_one_device(dev_dir_name);
			if (ret) {
				free(dev_dir_name);
				goto error_close_dir;
			}

			free(dev_dir_name);
			if (verblevel >= VERBLEVEL_SENSORS)
				printf("\n");
		}
	}
	rewinddir(dp);
	while (ent = readdir(dp), ent) {
		if (check_prefix(ent->d_name, type_trigger)) {
			char *dev_dir_name;

			if (asprintf(&dev_dir_name, "%s%s", iio_dir,
				     ent->d_name) < 0) {
				ret = -ENOMEM;
				goto error_close_dir;
			}

			ret = dump_one_trigger(dev_dir_name);
			if (ret) {
				free(dev_dir_name);
				goto error_close_dir;
			}

			free(dev_dir_name);
		}
	}

	return (closedir(dp) == -1) ? -errno : 0;

error_close_dir:
	if (closedir(dp) == -1)
		perror("dump_devices(): Failed to close directory");

	return ret;
}

int main(int argc, char **argv)
{
	int c, err = 0;

	while ((c = getopt(argc, argv, "v")) != EOF) {
		switch (c) {
		case 'v':
			verblevel++;
			break;

		case '?':
		default:
			err++;
			break;
		}
	}
	if (err || argc > optind) {
		fprintf(stderr, "Usage: lsiio [options]...\n"
			"List industrial I/O devices\n"
			"  -v  Increase verbosity (may be given multiple times)\n");
		exit(1);
	}

	return dump_devices();
}
 value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:36:39 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:36:39 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/sysctl/run_stringtests?id=2fb78e89405f4321b86274a0c24b30896dd50529'>2fb78e89405f4321b86274a0c24b30896dd50529</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/testing/selftests/sysctl/run_stringtests?id=2fb78e89405f4321b86274a0c24b30896dd50529'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=2fb78e89405f4321b86274a0c24b30896dd50529'>4de241e242441b80bd3f0022fc546bb07374571f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/testing/selftests/sysctl/run_stringtests?id=2fb78e89405f4321b86274a0c24b30896dd50529'>tools/testing/selftests/sysctl/run_stringtests</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/sysctl/run_stringtests?id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>dd3b9f25c867cb2507a45e436d6ede8eb08e7b05</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/testing/selftests/sysctl/run_stringtests?id=2fb78e89405f4321b86274a0c24b30896dd50529&amp;id2=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/sysctl/run_stringtests?id=c14024dbb156c8392908aaa822097d27c6af8ec8'>c14024dbb156c8392908aaa822097d27c6af8ec8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/testing/selftests/sysctl/run_stringtests?id=2fb78e89405f4321b86274a0c24b30896dd50529&amp;id2=c14024dbb156c8392908aaa822097d27c6af8ec8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-linus' of git://git.kernel.dk/linux-block</div><div class='commit-msg'>Pull block fixes from Jens Axboe:
 "A set of fixes for this series. This contains:

   - Set of fixes for the nvme target code

   - A revert of patch from this merge window, causing a regression with
     WRITE_SAME on iSCSI targets at least.

   - A fix for a use-after-free in the new O_DIRECT bdev code.

   - Two fixes for the xen-blkfront driver"

* 'for-linus' of git://git.kernel.dk/linux-block:
  Revert "sd: remove __data_len hack for WRITE SAME"
  nvme-fc: use blk_rq_nr_phys_segments
  nvmet-rdma: Fix missing dma sync to nvme data structures
  nvmet: Call fatal_error from keep-alive timout expiration
  nvmet: cancel fatal error and flush async work before free controller
  nvmet: delete controllers deletion upon subsystem release
  nvmet_fc: correct logic in disconnect queue LS handling
  block: fix use after free in __blkdev_direct_IO
  xen-blkfront: correct maximum segment accounting
  xen-blkfront: feature flags handling adjustments
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=2fb78e89405f4321b86274a0c24b30896dd50529'>Diffstat</a> (limited to 'tools/testing/selftests/sysctl/run_stringtests')</div><table summary='diffstat' class='diffstat'>