电脑上建设银行网站打不开,国内做网站的公司,大连营商建设局网站,wordpress 环境搭建文章目录1.matplotlib/时间复杂度/线性表#xff1a;顺序表要求存储空间必须连续2.python模块导入#xff1a;python3 -c ‘import sys;print(sys.path)’ 显示导入模块时会去哪些路径下查找3.进/线程#xff1a;进/线程是不能随便创建#xff0c;就像每招一个员工是有代价…
文章目录1.matplotlib/时间复杂度/线性表顺序表要求存储空间必须连续2.python模块导入python3 -c ‘import sys;print(sys.path)’ 显示导入模块时会去哪些路径下查找3.进/线程进/线程是不能随便创建就像每招一个员工是有代价的无限制招人最后崩溃。招几个固定员工某个人的活干完了再去任务中心领新活3.1 多进程进程池multiprocessing3.2 多线程线程池c是编译型python是解释型4.文件/xmlos.walk4.1 增写入文件内容给文本文件4.2 改批量修改图片大小4.3 查查询文件夹中的文件4.4 查读取文件4.5 查搜索文件夹路径内含有指定内容的代码文件4.6 labelimg_yolo_txt转pascal voc_xml4.7 删除 w label4.8 检查不是people和obstacle的label4.9 读取指定后缀4.10 检查是否有图片漏标并删除漏标图片4.11 检测标记的box是否超过图片的边界若有则显示删除与box相关的xml文件和图片文件4.12 检查xmin0....并修改xmin....4.13 读取classname4.14 检查trainval.txt5.百度人脸apihttps://ai.baidu.com/docs#/Auth/top 获取Access Token6. hal层strings flash-s3ip | grep U-Boot ( openbmc_version.bbclass )6.1 i2c-utils/setup_i2ci2c_dev_sysfs/syscpld.c6.2 DL_DIR: 一个字节 0x(8421)(8421)7.aiohttp: 0.0.0.0表示所有IP地址如tomcat配置文件中监听的IP地址设置了0.0.0.0就表示你的这个tomcat服务器监听在本机的所有IP地址上通任何一个IP地址都可以访问到8.curlhttp请求8.1 sshpass获取动态ip8.2 restful获取动态ip8.3 curl认证1.matplotlib/时间复杂度/线性表顺序表要求存储空间必须连续
import numpy as np
from matplotlib import pyplot as plt
import pandas as pd
df pd.read_excel(Documents/b.xlsx)
dfplt.figure(figsize(6,4))
plt.title(Train History)
plt.xlabel(Epoch)
plt.ylabel(Number of loss)plt.plot(df.c,df.d,r,marker*, mecr, mfcw)
plt.plot(df.a,df.b, marker*, mecb, mfcw)
plt.plot(df.g,df.h,marker*, mfcw)
plt.plot(df.e,df.f,g,marker*, mecg, mfcw)
plt.xticks(range(0,21))plt.legend([yCNN-AlexNet-loss,yCNN-VGGNet-loss,yCNN-ResNet-loss,yImproved CNN-ResNet-loss])
plt.showplt.figure(figsize(6,4))
plt.title(YOLOV4)
plt.xlabel(Batch)
plt.ylabel(acc)plt.plot(df.a,df.b,)
plt.plot(df.c,df.d,)
plt.legend([train,test])
plt.showplt.figure(figsize(6,4))
plt.xlabel(Precision)
plt.ylabel(Recall)plt.plot(df.a,df.b, markero, mecb, mfcw)
plt.plot(df.c,df.d,r,markero, mecr, mfcw)
#plt.xticks(range(0,21))
plt.legend([yOurs,yYoloV4])
plt.show# 如果abc1000,且a^2b^2c^2a,b,c为自然数如何求出所有a,b,c可能的组合
import time
start_time time.time()
for a in range(0,1001):for b in range(0,1001):for c in range(0,1001):if abc1000 and a**2b**2c**2:print(a,b,c:%d,%d,%d%(a,b,c))
end_time time.time()
print(time:%d%(end_time-start_time))打印出
a,b,c:0,500,500
a,b,c:200,375,425
a,b,c:375,200,425
a,b,c:500,0,500
time:203程序数据结构算法下图为数据的存储1个int数占4个字节char或B)(1B8bit)如下1放在4个字节中。
2.python模块导入python3 -c ‘import sys;print(sys.path)’ 显示导入模块时会去哪些路径下查找 __init__构造方法
3.进/线程进/线程是不能随便创建就像每招一个员工是有代价的无限制招人最后崩溃。招几个固定员工某个人的活干完了再去任务中心领新活
3.1 多进程进程池multiprocessing
# a.py
from multiprocessing import Process
from hal.hal_sensor import * # HalSensor
from hal.hal_temp import * # HalTemperaturesensor HalSensor()
aHalTemperature(sensor)def pt():while True:ba.get_inlet_temp()print(b)if __name__ __main__:p1 Process(targetpt)p2 Process(targetpt)p3 Process(targetpt)p1.start()p2.start()p3.start()p1.join()p2.join()p3.join()# l []# for i in range(10):# p Process(targetpt)# l.append(p)# for x in l:# x.start()# for y in l:# y.join()3.2 多线程线程池c是编译型python是解释型
如下红框是主进程没有等子线程结束就结束了。 线程池适合需要大量线程完成任务但实际处理时间较短。
import time
from concurrent.futures import ThreadPoolExecutor
import random# max_workers表示工人数量,也就是线程池里面的线程数量
pool ThreadPoolExecutor(max_workers2)
# 任务列表
task_list [任务1, 任务2, 任务3, 任务4, ]def handler(task_name):n random.randrange(5) # 随机睡眠,模仿任务执行时间不确定性time.sleep(n)print(f任务内容:{task_name})if __name__ __main__:# 遍历任务,for task in task_list:交给函数处理,submit会将所有任务都提交到一个地方,不会阻塞然后线程池里面的每个线程会来取任务,比如:线程池有3个线程,但是有5个任务会先取走三个任务,每个线程去处理其中一个线程处理完自己的任务之后,会再来提交过的任务区再拿走一个任务pool.submit(handler, task) # 线程取【任务task】并【执行handler】【任务task】# pool.shutdown() # 让主线程等待所有子线程执行完之后主线程再执行完print(main执行完毕)# main执行完毕
# 任务内容:任务1
# 任务内容:任务3
# 任务内容:任务2
# 任务内容:任务44.文件/xmlos.walk
4.1 增写入文件内容给文本文件
def writeTextFile(filePath, fileContent, encodingutf8):with open(filePath, w, encodingencoding) as file:file.write(fileContent)4.2 改批量修改图片大小
import os
from PIL import Imagedef getFilePathList(dirPath, partOfFileName):allFileName_list list(os.walk(dirPath))[0][2]fileName_list [k for k in allFileName_list if partOfFileName in k]filePath_list [os.path.join(dirPath, k) for k in fileName_list]return filePath_listdef batchResizeImage(oldDirPath, newDirPath, height, width):if not os.path.isdir(newDirPath):os.mkdir(newDirPath)jpgFilePath_list getFilePathList(oldDirPath, .jpg)for jpgFilePath in jpgFilePath_list:image Image.open(jpgFilePath)resized_image image.resize((height, weight), Image.ANTIALIAS)jpgFileName os.path.split(jpgFilePath)[1]saveFilePath os.path.join(newDirPath, jpgFileName)resized_image.save(saveFilePath)oldDirPath source_images
newDirPath train_images
height 640
width 640
batchResizeImage(oldDirPath, newDirPath, height, width)4.3 查查询文件夹中的文件
import osdef getFileNameList(dirPath, partOfFileName):allFileName_list list(os.walk(dirPath))[0][2]fileName_list [k for k in allFileName_list if partOfFileName in k]return fileName_listdef getFilePathList(dirPath, partOfFileName):allFileName_list list(os.walk(dirPath))[0][2]fileName_list [k for k in allFileName_list if partOfFileName in k]filePath_list [os.path.join(dirPath, k) for k in fileName_list]return filePath_list4.4 查读取文件
import osdef getdir():for root, dirs, files in os.walk(D:\soft\Dict\8.9.6.0\otherskins\simisent):#for dir in dirs:print(root {}.format(root))print(dirs {}.format(dirs))print(files {}.format(files))
agetdir()#11111111111111111111111111111111111111111111111111111111111111111111111
def show_files(path, all_files):file_list os.listdir(path)for file in file_list:cur_path os.path.join(path, file)if os.path.isdir(cur_path):show_files(cur_path, all_files)else:all_files.append(file)return all_filescontents show_files(D:\soft\Dict\8.9.6.0\otherskins\simisent, [])
for content in contents: # 循环打印show_files函数返回的文件名列表print(content)def readTextFile(filePath, encodingutf8):with open(filePath, encodingencoding) as file:return file.read()4.5 查搜索文件夹路径内含有指定内容的代码文件
import os
# 传入3个参数文件夹路径dirPath、指定内容partOfFileContent、代码文件后缀名suffixOfFileName
def searchFileContent(dirPath, partOfFileContent, suffixOfFileName):dirPath os.path.expanduser(dirPath)walk_list list(os.walk(dirPath))result_list []for walk in walk_list:filePath_list [os.path.join(walk[0], k) for k in walk[2] \if k.rsplit(., maxsplit1)[1]suffixOfFileName.strip(.)]for filePath in filePath_list:with open(filePath, encodingutf8) as file:fileContent file.read()if partOfFileContent in fileContent:Wprint(filePath)result_list.append(filePath)return result_list4.6 labelimg_yolo_txt转pascal voc_xml
from PIL import Image
import os#读取文件尺寸
def ImgSize(image):img Image.open(image)w,h img.width,img.heightreturn w,h#labelimg中yolo转voc图位转换
#width,height就是原图的w,h #xmin指中心点占横比例xmax指中心点占竖比例 #ymin指bbox占整图宽比例ymax指bbox占整图高比例
def ScaleCovertor(width,height,xmin,xmax,ymin,ymax): center_x round(float(xmin* width)) center_y round(float(xmax * height))bbox_width round(float(ymin * width))bbox_height round(float(ymax * height))xmin str(int(center_x - bbox_width / 2 ))ymin str(int(center_y - bbox_height / 2))xmax str(int(center_x bbox_width / 2))ymax str(int(center_y bbox_height / 2))return xmin,ymin,xmax,ymaxdef Main(filepath): #filepath是txt文件夹路径里面全是需要转换的txt文件
#设置xml内部格式xml_head annotationfolderDesktop/folderfilename{}/filenamepathunknonw/pathsourcedatabaseunknow/database/sourcesizewidth{}/widthheight{}/heightdepth3/depth/sizesegmented0/segmentedxml_obj object name{}/nameposeno/posetruncated0/truncateddifficult0/difficultbndboxxmin{}/xminymin{}/yminxmax{}/xmaxymax{}/ymax/bndbox/objectxml_end /annotationcounter 1 #计数器for filename in os.listdir(filepath): #现在的filename是带后缀的print (Processing:-,filename,Number %s%counter) #打印当前文件名 和 第几个文件#原图 content[] #建立内容列表class中心点占比bbox占比with open(filepath/filename,r) as readlines:for linecontent in readlines.readlines(): #读取每一行内容content.append(linecontent) #添加到列表中 w,h ImgSize(C:/Users/lenovo/Desktop/yuantu/filename.split(.)[0].jpg) #调用文件尺寸读取函数#xml obj #这里创建xml建立空字符串head xml_head.format(str(filename.split(.)[0].jpg),str(w),str(h)) #向xml head里添加文件名 文件w和hfor info in content: #读取每个文件里的内容infodetail info.split( ) #以空格切割列表内的数据#单独读取每个数据保存到变量里Class,XMin,XMax,YMin,YMax infodetail[0],infodetail[1],infodetail[2],infodetail[3],infodetail[4],xmin,ymin,xmax,ymax ScaleCovertor(w,h,float(XMin),float(XMax),float(YMin),float(YMax))label {1:obstacle,0:people} #确定label和类的映射关系下行用到obj xml_obj.format(label[int(Class)],xmin,ymin,xmax,ymax) #向主object里循环添加 一个图里的物体或类#写入xml文件with open(C:/Users/lenovo/Desktop/annotation2/xmlfilename.split(.)[0].xml,w) as xmw:#创建写入 合并 三个 xml主体部分xmw.write(headobjxml_end)counter1
Main(C:/Users/lenovo/Desktop/annotation2/txt) #txt文件夹 #验证转的对错
import matplotlib.pyplot as plt
import matplotlib.image as Image #这个读取库比较方便 不用把数据转来转去plt可以直接使用
%matplotlib inline
img Image.imread(/Users/Desktop/annotation2/test/yuantu/20190721062948_000394_cc8cdaa5ee38.jpg) #读取
x1,y1,x2,y2 1344, 495, 1722, 1080 # 自己找验证plt.gca().add_patch ( plt.Rectangle(xy(x1,y1),widthx2-x1,heighty2-y1,fillFalse,edgecolorred,linewidth2)
)plt.imshow(img)
plt.show() #根据环境添加4.7 删除 w label
import re
import os
rawfolder123 #存放三张xml的文件夹
newfolder33333 #生成的新的xml文件夹
for i in os.listdir(rawfolder):print (i) #输出#20190720073948_000258_cc8cdaa5ee49.xml#20190720073950_000257_cc8cdaa64390.xml#20190720073950_000258_cc8cdaa5ee3e.xmlwith open(rawfolder/i,r) as r:content r.readlines()#print(content)
#输出[annotation\n, \tfolderimg/folder\n, \tfilename20190720073948_000258_cc8cdaa5ee49.JPG/filename\n, ...]c 0for j in content:if namew/name in j:print (j,下标-》,c) #c为14行namew/name从0行开始start 0end c-1 # c-1为上一行object first_part content[start:end]second_part content[end12:] #整个一块为w的objectfinal first_partsecond_partfor x in final:with open(newfolder/i,a) as w:w.writelines(x)print (x)c1# break4.8 检查不是people和obstacle的label
# 检查不是people和obstacle的label
import re
import os
rawfolder123
#newfolder33333
for i in os.listdir(rawfolder):
# print (i)with open(rawfolder/i,r) as r:content r.readlines()
# print(content)for j in content:if name in j and (people not in j and obstaclenot in j):print (j)print (i) 4.9 读取指定后缀
import os
def get_filePathList(dirPath, partOfFileName):all_fileName_list next(os.walk(dirPath))[2] #[20190720072950_000256_cc8cdaa64390.JPG,#20190720073948_000258_cc8cdaa5ee49.JPG,# 20190720073950_000257_cc8cdaa64390.JPG,# 20190720074950_000259_cc8cdaa5ee3e .jpg,#20190720074950_000259_cc8cdaa5ee3e.JPG] fileName_list [k for k in all_fileName_list if partOfFileName in k] #去除除了.JPG文件不含前面绝对路径filePath_list [os.path.join(dirPath, k) for k in fileName_list] #含全部路径[, # ]#return fileName_listreturn filePath_listdirPathC:/Users/lenovo/Desktop/lian
aget_filePathList(dirPath,.JPG)
a
#print(len(a))4.10 检查是否有图片漏标并删除漏标图片
def delete_file(filePath):if not os.path.exists(filePath): #filePath指C:/Users/lenovo/Desktop/lianxi/img\\20190720072950_000256_cc8cdaa64390.JPGprint(%s 这个文件路径不存在请检查一下 %filePath)else:print(%s 这个路径的文件需手动删除 %filePath)def check_1(dirPath, suffix): xmlFilePath_list get_filePathList(dirPath, .xml) # 与suffix不同自己指定.xmlxmlFilePathPrefix_list [k[:-4] for k in xmlFilePath_list] # 不带.xmlxmlFilePathPrefix_set set(xmlFilePathPrefix_list)#print(xmlFilePathPrefix_set) #{绝对路径不带后缀,# }imageFilePath_list get_filePathList(dirPath, suffix)imageFilePathPrefix_list [k[:-4] for k in imageFilePath_list] # 不带后缀imageFilePathPrefix_set set(imageFilePathPrefix_list)#print(imageFilePathPrefix_set)redundant_imgFilePathPrefix_list list(imageFilePathPrefix_set - xmlFilePathPrefix_set)redundant_imgFilePath_list [k.JPG for k in redundant_imgFilePathPrefix_list]#上行带.JPG后缀, 如果自定义.0JPG显示这个文件路径不存在请检查一下for imgFilePath in redundant_imgFilePath_list: delete_file(imgFilePath)dirPathC:/Users/lenovo/Desktop/lx
check_1(dirPath,.JPG)4.11 检测标记的box是否超过图片的边界若有则显示删除与box相关的xml文件和图片文件
import xml.etree.ElementTree as ET
from PIL import Image
def check_2(dirPath, suffix):xmlFilePath_list get_filePathList(dirPath, .xml)#print(xmlFilePath_list) #[.xml全部路径,# ]allFileCorrect True # 跳出for循环则执行 if allFileCorrectfor xmlFilePath in xmlFilePath_list:imageFilePath xmlFilePath[:-4] . suffix.strip(.)#print(xmlFilePath) #print(imageFilePath)#C:/Users/lenovo/Desktop/lx\20190720072950_000256_cc8cdaa64390.xml#C:/Users/lenovo/Desktop/lx\20190720072950_000256_cc8cdaa64390.JPG#.....image Image.open(imageFilePath)width, height image.sizewith open(xmlFilePath) as file:fileContent file.read()#print(fileContent) #annotation...root ET.XML(fileContent) #根annotation...object_list root.findall(object) # objectfor object_item in object_list:bndbox object_item.find(bndbox) #bndboxxmin int(bndbox.find(xmin).text)ymin int(bndbox.find(ymin).text)xmax int(bndbox.find(xmax).text)ymax int(bndbox.find(ymax).text)if xmaxxmin and ymaxymin and xmaxwidth and ymaxheight:continueelse:delete_file(xmlFilePath)delete_file(imageFilePath)allFileCorrect Falsebreakif allFileCorrect:print(祝贺你! 已经通过检验所有xml文件中的标注框都没有越界)
dirPathC:/Users/lenovo/Desktop/lx #lx文件夹里.xml和.JPG混在一起
check_2(dirPath,.JPG)#里必须.JPG或不填4.12 检查xmin0…并修改xmin…
#codingutf-8
import os
import shutil
import random
from xml.etree.ElementTree import ElementTree,Element
import cv2def read_xml(in_path):读取并解析xml文件in_path: xml路径return: ElementTreetree ElementTree()tree.parse(in_path)return treedef check():url C:/Users/lenovo/Desktop/source/xml_sum # xml_sum只存放xml的文件夹for item in os.listdir(url): # item为.xml文件tree read_xml(url / item) # read_xml函数上面定义root tree.getroot()object root.findall(object)size root.find(size)width int(size.find(width).text)height int(size.find(height).text)if object None:print(item)continuefor it in object:bndbox it.find(bndbox)if bndbox None:print(item)xmin int(bndbox.find(xmin).text)xmax int(bndbox.find(xmax).text)ymin int(bndbox.find(ymin).text)ymax int(bndbox.find(ymax).text)if xmin 0 or xmin xmax or ymin 0 or ymin ymax:print(item)if xmax width or ymax height:print(item)if __name__ __main__:check() # 不输出则表示全对。输出123111.xml没有列表引号import xml.etree.ElementTree as ETdef generateNewXmlFile(old_xmlFilePath, new_xmlFilePath):with open(old_xmlFilePath) as file:fileContent file.read()root ET.XML(fileContent)object_list root.findall(object)for object_item in object_list:bndbox object_item.find(bndbox)xmin bndbox.find(xmin)xminValue int(xmin.text)xmin.text str(int(xminValue 1))ymin bndbox.find(ymin)yminValue int(ymin.text)ymin.text str(int(yminValue 1))xmax bndbox.find(xmax)xmaxValue int(xmax.text)xmax.text str(int(xmaxValue 1))ymax bndbox.find(ymax)ymaxValue int(ymax.text)ymax.text str(int(ymaxValue 1))tree ET.ElementTree(root)tree.write(new_xmlFilePath)
old_dirPath C:/Users/lenovo/Desktop/999/8
new_dirPath C:/Users/lenovo/Desktop/999/9def batch_modify_xml(old_dirPath, new_dirPath): #修改文件夹中的若干xml文件#以下4行将new_dirPath和xmlFileName名称结合内容是调用generateNewXmlFile函数改写xmlFilePath_list get_filePathList(old_dirPath, .xml)for xmlFilePath in xmlFilePath_list:xmlFileName os.path.split(xmlFilePath)[1] #1后#print(xmlFileName) #输出 20190720073950_000257_cc8cdaa64390.xmlnew_xmlFilePath os.path.join(new_dirPath, xmlFileName) generateNewXmlFile(xmlFilePath, new_xmlFilePath) batch_modify_xml(old_dirPath, new_dirPath)4.13 读取classname
def get_classNameList(txtFilePath):with open(txtFilePath, r, encodingutf8) as file:fileContent file.read()line_list [k.strip() for k in fileContent.split(\n) if k.strip()!]className_list sorted(line_list, reverseFalse)return className_list
txtFilePathC:/Users/lenovo/Desktop/labelImg/data/predefined_classes -outofstock.txt
get_classNameList(txtFilePath)# 添加环境变量
import sys
sys.path.append()import os
pathnoname,nameos.path.split(E:/lpthw/zedshaw/ex19.py)
print(pathnoname)
print(name)4.14 检查trainval.txt
import cv2
from os import listdir
from os.path import isfile,isdir,jointrainval_list list()
with open(./trainval.txt,r) as f:for line in f.readlines():line line.strip(\n)a line .jpgtrainval_list.append(a)
print(trainval_list) for i in trainval_list:img_path {}{}.format(./img3/,i)img cv2.imread(img_path) try:img.shapeprint(img.shape) # 在img3文件夹中没有......11111.jpg图片except:print(fail read: img_path)continue5.百度人脸apihttps://ai.baidu.com/docs#/Auth/top 获取Access Token # encoding:utf-8
import os
import base64
import json
import xlwt
import urllib.request,urllib.parse
request_url https://aip.baidubce.com/rest/2.0/face/v3/detect # 在人脸识别API文档中人脸检测中
row 0
col 0
workbook xlwt.Workbook(123.xls)
worksheet workbook.add_sheet(gongzuobiao)
worksheet.write(row, col0, 时间)
worksheet.write(row, col1, 相机ID)
worksheet.write(row, col2, 性别)
worksheet.write(row, col3, 年龄)
worksheet.write(row, col4, 种族)
worksheet.write(row, col5, 表情)for imgname in os.listdir(G:/img3):print(imgname:,imgname) # imgname: data imgname.split(_)[0]print(data:, data) # data: camera imgname.split(_)[2].split(.)[0]print(camera:,camera) # camera: imgpath G:/img3imgnamef open(imgpath, rb)img base64.b64encode(f.read())params {image:img,image_type:BASE64,face_field:age,gender,race,emotion}params urllib.parse.urlencode(params).encode(encodingUTF8)access_token 24.0449cf2437689f550ca5f93dac53fce3.2592000.1574310334.282335-17084453request_url request_url ?access_token access_token request urllib.request.Request(urlrequest_url, dataparams)request.add_header(Content-Type, application/json)response urllib.request.urlopen(request)content response.read()print(content:,content)if content:str content.decode()content json.loads(str)results content[result]if results:row 1for item in results[face_list]:print(item:\n,item[gender][type])worksheet.write(row, col 0, data)worksheet.write(row, col 1, camera)worksheet.write(row, col 2, item[gender][type])worksheet.write(row, col 3, item[age])worksheet.write(row, col 4, item[race][type])worksheet.write(row, col 5, item[emotion][type])workbook.save(123.xls)6. hal层strings flash-s3ip | grep U-Boot ( openbmc_version.bbclass ) # aliases.sh 同setup_board.sh
alias lsls --colorauto
alias iip addr show | grep inet | grep eth0 | grep -v 240.1.1.1 | awk {print $2}|awk -F / {print $1}
alias ttail -10 /var/volatile/log/messages
alias apython3 /usr/local/bin/board_setup_routes.py
alias sr/usr/local/bin/sshpass -p 1 scp -r li10.75.92.228:/home_a/liuht/openbmc-s3ip/meta-huaqin/meta-s3ip/recipes-utils/rest-api/files/* /usr/local/fbpackages/rest-api/
alias cvcd /var/volatile/log
alias cmcd /mnt/data/etc/# meta-huaqin/meta-kestrel/recipes-utils/openbmc-utils/files/setup_board.sh
. /usr/local/bin/openbmc-utils.shPATH/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin
BMC_BOOT_STATUS${SYSCPLD_SYSFS_DIR}/bmc_boot_statuscp /etc/sensors.d/custom/__PLATFORM__.conf /etc/sensors.d/__PLATFORM__.conf
enable_spi2_function#write bmc status to CPLD
echo 0x1 $BMC_BOOT_STATUS#Set BMC login timeout
echo TMOUT300 /etc/profile
echo export TMOUT /etc/profileif [ -f /sys/bus/i2c/devices/48-0058/mfr_id ];then ln -snf /sys/bus/i2c/devices/48-0058/mfr_id /sys_switch/psu/psu1/model_name;fialias sscp -r li10.75.92.228:/home/li/openbmc-s3ip/build/tmp/deploy/images/s3ip/flash-s3ip .
alias fflashcp ./flash-s3ip /dev/mtd4;flashcp ./flash-s3ip /dev/mtd5;reboot;
cd /var/volatile/log # 和/var/log下文件一样机器重刷系统重启都不会变在emmc卡里
scp -r lit10.75.92.228:/home/openbmc-s3ip/meta-huaqin/meta-s3ip/recipes-plats/hal/files/hal_common.py .;
alias ccp ./rest_psu.py /usr/local/fbpackages/rest-api/rest_psu.py;cp ./rest_psu.py /usr/local/bin/rest_psu.py;rm ./rest_psu.py;6.1 i2c-utils/setup_i2ci2c_dev_sysfs/syscpld.c
1.openbmc-holly/common/recipes-utils/openbmc-utils/files/i2c-utils.sh
SYSFS_I2C_ROOT/sys/bus/i2c
SYSFS_I2C_DEVICES${SYSFS_I2C_ROOT}/devices
SYSFS_I2C_DRIVERS${SYSFS_I2C_ROOT}/drivers# Return the given i2c devices absolute sysfs path.
# $1 - i2c device in bus-00add format (for example 0-0050).
i2c_device_sysfs_abspath() {echo ${SYSFS_I2C_DEVICES}/${1}
}# instantiate an i2c device.
# $1 - parent bus number
# $2 - device address
# $3 - device name/type
i2c_device_add() {bus$$1addr$2device$3echo $device $addr ${SYSFS_I2C_DEVICES}/i2c-${bus}/new_device
}# delete an i2c device.
# $1 - parent bus number
# $2 - device address
i2c_device_delete() {bus$$1addr$2echo $addr ${SYSFS_I2C_DEVICES}/i2c-${bus}/delete_device
}2.openbmc-holly/meta-hua/meta-holly/recipes-utils/openbmc-utils/files/setup_i2c.sh
PATH/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin
. /usr/local/bin/openbmc-utils.sh#register cmm cpld at first since query psu/lc/fcb status will relay on it
# Bus8
# CH2
i2c_device_add 82 0x0d cmmcpld# Bus0 LC1
# 0-0077
# CH0
i2c_device_add 16 0x0d lccpld
ret$(is_lc_ok 1)
if [ $ret -eq 0 ];then# CH1i2c_device_add 17 0x50 24c64 #LC1 EEPROM# CH2i2c_device_add 18 0x50 24c64 #LC1 COME EEPROM
fi
# CH3
i2c_device_add 19 0x0d fpgacpld #LC1 FPGA3.openbmc-hollywood/common/recipes-kernel/i2c-dev-sysfs-mod/files/i2c_dev_sysfs.h
typedef struct i2c_dev_attr_st_ {const char *ida_name;const char *ida_help;i2c_dev_attr_show_fn ida_show;i2c_dev_attr_store_fn ida_store;int ida_reg;int ida_bit_offset;int ida_n_bits;unsigned int enable_log_on_write:1;
} i2c_dev_attr_st;4.openbmc-hua/meta-hua/meta-hollywood/recipes-kernel/cpld-mod/files/syscpld.c
static const i2c_dev_attr_st syscpld_attr_table[] {{psu_led_color,0x0: green\n0x1: yellow\n0x2: alternate, //echo 0x0 psu_led_color文件相当于i2csetI2C_DEV_ATTR_SHOW_DEFAULT, // 可读I2C_DEV_ATTR_STORE_DEFAULT, // 可写0x40, 4, 2, // 如下第4个字节开始占两位},source /usr/local/bin/openbmc-utils.sh ( 里面source了很多-utils.sh如board-utils.sh ) 后就可用get_psu_power_sta 1board-utils.sh中tail -f /var/log/messages。
6.2 DL_DIR: 一个字节 0x(8421)(8421)
github上clone下来的openbmc没有源码文件如uboot、kernel、fs文件系统等而是在编译中过程中根据配置文件中SRC_URL来下载需要的源码文件不修改配置文件默认将下载下来的源码存放在build/downloads文件夹下。如果已下载过这些源码文件可以修改DL_DIR指定到你下载文件的路径。build/local.conf会自动添加最后一行。
1.openbmc-huaqin$ source openbmc-init-build-env meta-huaqin/meta-kestrel //让bitbake命令生效2.openbmc-huaqin/build$ bitbake kestrel-image //如果不自动进入build目录关闭shell并重新打开shell删除build目录或删除build里的tmp和cache3.scp -r y10.75.92.228:/home/yutao/openbmc-huaqin/build/tmp/deploy/images/kestrel/flash-kestrel .4.flashcp flash-kestrel /dev/mtd4 ; reboot 不用flashcp scp yutao10.75.92.228:/home/yutao/openbmc-huaqin/build/tmp/work/kestrel-fb-linux-gnueabi/kestrel-image/1.0-r0/rootfs/usr/local/bin/sensor-mon .5.vi /etc/platform/hollywood/sensors_config.json , sv restart sensor-monbitbake - .bb- .bbappend ( do_install - usr/local/pachages/utils ln-s软链接到 usr/local/bin ) 打包进image/usr/lib/..so, deploy镜像, ./sy..sh生成yocto文件夹 , find -name 文件名, grep -r 变量7.aiohttp: 0.0.0.0表示所有IP地址如tomcat配置文件中监听的IP地址设置了0.0.0.0就表示你的这个tomcat服务器监听在本机的所有IP地址上通任何一个IP地址都可以访问到
localhost是一个域名默认指向127.0.0.1这ip本地回环地址速度快不会出现在主机外部网络绑定了localhost的服务只能在本机访问。
# a.py创建一个后端app应用
from aiohttp import web
# from application.routes import setup_routesapp web.Application()
# setup_routes(app)
web.run_app(app, host0.0.0.0, port9000) #开启后端如下python a.py。在浏览器中打开http://localhost:9000/或者使用命令curl -X GET http://localhost:9000对于请求现在只会返回404: Not Found。 如下创建一个视图(返回值)和路由来展示在a.py中将注释的两行放开运行$ curl -X GET localhost:9000/hello Hello Aiohttp!
# application文件夹/views.py
from aiohttp import web
async def hello(request):return web.Response(textHello Aiohttp!)# application文件夹/routes.py
from .view import hello
def setup_routes(app):app.router.add_get(/hello, hello) # 第二个hello是调用views.py中函数相当于response。# 第一个/hello可单独写一个.py文件里面写成如下取board_routes[0]# board_routes [# /api/psu/info,# /api/psu/info/{name},# ]restful
# board_endpoint.py视图即response
import re
import rest_help
import rest_psu
import rest_fan
from aiohttp import web
from rest_utils import dumps_bytestrclass boardApp_Handler:async def rest_help_hdl(self, request):return web.json_response( rest_help.get_help(), dumpsdumps_bytestr)async def rest_psu_model_name_hdl(self, request):return web.json_response( rest_psu.get_model_name(request.match_info[name]), dumpsdumps_bytestr)# boardroutes.py路由即/
board_routes []
board_routes.append(/api/help)
board_routes.append(/api/psu/{name}/model_name)# board_setup_routes.py路由即/
from board_endpoint import boardApp_Handler
from boardroutes import *
from aiohttp.web import Applicationdef setup_board_routes(app: Application, write_enabed: bool):bhandler boardApp_Handler()# 下行第一个参数路径boardroutes.py路由第二个参数responseboard_endpoint.py视图app.router.add_get(board_routes[0], bhandler.rest_help_hdl) app.router.add_get(board_routes[3], bhandler.rest_psu_model_name_hdl)8.curlhttp请求
curl -h查看可接的参数-s省略进度条。-ooutput。-H请求头。-d请求内容。-X请求方法。 如下没有-H指定header但是默认附带3个header。 index-win.exe测试小程序主要监听88端口并能将请求内容打印出来。 如下会自动多出content-两个请求头。 如下以json形式提交替代表单形式提交。
# redfish_update_BMC.sh
#!/bin/sh
usage() {echo Usage: update BMC thought redfish or BMC factory resetecho $(basename $0) IPecho $(basename $0) IP factory bmc echoecho Examples:echo $(basename $0) 10.75.159.18 imagefileecho $(basename $0) 10.75.159.18 imagefile f
}bmc$1
##建立 Redfish 连接会话
tokencurl -k -H Content-Type: application/json -X POST https://$bmc/login -d {username : root, password : 0penBmc} | grep token | awk {print $2;} | tr -d
##获取BMC升级的URL
uri$(curl -k -H X-Auth-Token: $token https://$bmc/redfish/v1/UpdateService |grep HttpPushUri | awk -F {print $4;})
##打印log
echo bmc$bmc token$token uri$uriif [ $# -eq 2 ] [ $2 f ]; then ##删除配置#恢复出厂设置删除文件系统中的一些后期文件,立刻重启BMC系统curl -k -H X-Auth-Token: $token -X POST https://$bmc/redfish/v1/Managers/bmc/Actions/Manager.ResetToDefaults -d {ResetToDefaultsType: ResetAll}
elif [ $# -eq 2 ]; then ##保留配置升级##升级完FW后等待下一次重启后生效# curl -k -H X-Auth-Token: $token -X PATCH -d {HttpPushUriOptions: {HttpPushUriApplyTime: {ApplyTime: OnReset}}} https://$bmc/redfish/v1/UpdateService##升级完FW后立刻自动重启后生效curl -k -H X-Auth-Token: $token -X PATCH -d {HttpPushUriOptions: {HttpPushUriApplyTime: {ApplyTime: Immediate}}} https://$bmc/redfish/v1/UpdateServicesleep 1##升级的FW将被拷贝到/tmp/image/下--对应的接收函数时bmcweb么快的handleUpdateServicePost函数# curl -k -H X-Auth-Token: $token -H Content-Type: application/octet-stream -X POST -T ./build/kestrel/tmp/deploy/images/kestrel/obmc-phosphor-image-kestrel.static.mtd.tar https://$bmc$uri# curl -k -H X-Auth-Token: $token -H Content-Type: application/octet-stream -X POST -T ./build/gnr5713cmm/tmp/deploy/images/gnr5713cmm/obmc-phosphor-image-gnr5713cmm.static.mtd.tar https://$bmc$uricurl -k -H X-Auth-Token: $token -H Content-Type: application/octet-stream -X POST -T $2 https://$bmc$uri# curl -k -H X-Auth-Token: $token -H Expect: -X POST -T ./build/gnr5713cmm/tmp/deploy/images/gnr5713cmm/obmc-phosphor-image-gnr5713cmm.static.mtd.tar https://$bmc$uri# sleep 5##重启BMC# curl -k -H X-Auth-Token: $token -X POST https://$bmc/redfish/v1/Managers/bmc/Actions/Manager.Reset -d {ResetType: GracefulRestart}
elif [ $# -eq 3 ] [ $3 f ]; then ##不保留配置升级##升级完FW后等待下一次重启后生效curl -k -H X-Auth-Token: $token -X PATCH -d {HttpPushUriOptions: {HttpPushUriApplyTime: {ApplyTime: OnReset}}} https://$bmc/redfish/v1/UpdateService##升级完FW后立刻自动重启后生效# curl -k -H X-Auth-Token: $token -X PATCH -d {HttpPushUriOptions: {HttpPushUriApplyTime: {ApplyTime: Immediate}}} https://$bmc/redfish/v1/UpdateServicesleep 1##升级的FW将被拷贝到/tmp/image/下--对应的接收函数时bmcweb么快的handleUpdateServicePost函数# curl -k -H X-Auth-Token: $token -H Content-Type: application/octet-stream -X POST -T ./build/kestrel/tmp/deploy/images/kestrel/obmc-phosphor-image-kestrel.static.mtd.tar https://$bmc$uri# curl -k -H X-Auth-Token: $token -H Content-Type: application/octet-stream -X POST -T ./build/gnr5713cmm/tmp/deploy/images/gnr5713cmm/obmc-phosphor-image-gnr5713cmm.static.mtd.tar https://$bmc$uricurl -k -H X-Auth-Token: $token -H Content-Type: application/octet-stream -X POST -T $2 https://$bmc$urisleep 1curl -k -H X-Auth-Token: $token -X POST https://$bmc/redfish/v1/Managers/bmc/Actions/Manager.ResetToDefaults -d {ResetToDefaultsType: ResetAll}# curl -k -H X-Auth-Token: $token -H Expect: -X POST -T ./build/gnr5713cmm/tmp/deploy/images/gnr5713cmm/obmc-phosphor-image-gnr5713cmm.static.mtd.tar https://$bmc$uri# sleep 5##重启BMC# curl -k -H X-Auth-Token: $token -X POST https://$bmc/redfish/v1/Managers/bmc/Actions/Manager.Reset -d {ResetType: GracefulRestart}
elseusage
fi8.1 sshpass获取动态ip # auto-ip
# !/bin/bash
PATH/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin
log/var/log/auto-ip.log
ip a $log
date $log
# -p密码。-o StrictHostKeyCheckingno内网中非常信任的服务器之间的ssh连接。或者/etc/ssh$ vi ssh_config
# 如下将log拷贝去远程并重命名为s3ip-openbmc-bmc
sshpass -p 1 scp -o StrictHostKeyCheckingno $log li10.75.92.228:/home_a/li/ip/s3ip-openbmc-bmc
sleep 10# setup-auto-ip.sh
echo Starting auto-ip daemon...
runsv /etc/sv/auto-ip /dev/null 21
echo Started auto-ip daemon# run-auto-ip.sh
exec /usr/local/bin/auto-ip// auto-ip.bb
SUMMARY auto-ip
DESCRIPTION auto-ip
SECTION base
PR r1
LICENSE GPLv2
LIC_FILES_CHKSUM file://COPYING;md594d55d512a9ba36caa9b7df079bae19fSRC_URI file://COPYING \file://auto-ip \file://run-auto-ip.sh \file://setup-auto-ip.sh \S ${WORKDIR}
binfiles auto-ip \
pkgdir auto-ipDEPENDS update-rc.d-native
RDEPENDS_${PN} bashinstall_sysv() {install -d ${D}${sysconfdir}/init.dinstall -d ${D}${sysconfdir}/rcS.dinstall -d ${D}${sysconfdir}/svinstall -d ${D}${sysconfdir}/sv/auto-ipinstall -d ${D}${sysconfdir}/auto-ipinstall -m 755 setup-auto-ip.sh ${D}${sysconfdir}/init.d/setup-auto-ip.shinstall -m 755 run-auto-ip.sh ${D}${sysconfdir}/sv/auto-ip/runupdate-rc.d -r ${D} setup-auto-ip.sh start 91 5 .
}do_install() {dst${D}/usr/local/fbpackages/${pkgdir}bin${D}/usr/local/bininstall -d $dstinstall -d $binfor f in ${binfiles}; doinstall -m 755 $f ${dst}/$fln -snf ../fbpackages/${pkgdir}/$f ${bin}/$fdoneinstall_sysv
}FBPACKAGEDIR ${prefix}/local/fbpackages
FILES_${PN} ${FBPACKAGEDIR}/auto-ip ${prefix}/local/bin ${sysconfdir}8.2 restful获取动态ip
# /mnt/data/etc/rc.local中
#!/bin/bash
/usr/local/bin/set_fan_speed.sh 30# pi上 /etc/rc.local
_IP$(hostname -I) || true
if [ $_IP ]; thenprintf My IP address is %s\n $_IP
fish /boot/autorun.sh
if [ -x /var/log/rc.local ]; then # -x是否是可执行文件/var/log/rc.local
fi
exit 0# /boot/autorun.sh
sleep 30
ifconfig /boot/autoboot.log# /var/log/rc.local
/usr/bin/python3 /var/log/client.py 10.75.92.228 pi1 # client.py
#!/usr/bin/python3
# -*- coding: utf-8 -*-
import socket
import subprocess
import sys
import json
import timedef get_self_ip():try:s socket.socket(socket.AF_INET, socket.SOCK_DGRAM)s.connect((8.8.8.8, 80))ip s.getsockname()[0]finally:s.close()return ip
# if __name__ __main__:
# a get_self_ip()
# print(a)
# python client.py 10.75.92.230if len(sys.argv) 3:server sys.argv[1] # 10.75.92.230client sys.argv[2] # 服务端中的json文件中记录着的客户端的ip地址
else:print (usage)#11111111111111111111111111111111111111111111111111111111111111111111111111111111
while True:url_body {}url_body[slave] clienturl_body[ip] get_self_ip() # python client.py 10.75.92.230 a# print(url_body) # {ip: 10.75.92.230, slave: a}cmd curl -s http://{}:8080/api/slave -d {}.format(server,json.dumps(url_body, ensure_asciiFalse))# print(cmd) # curl -s http://10.75.92.230:8080/api/slave -d {ip: 10.75.92.230, slave: a} # -ddata 即server.py中data 即 请求request数据(returncode, output) subprocess.getstatusoutput(cmd) #subprocess启动一个新进程print (output)if returncode 0:if output:d json.loads(output)if d:if result in d.keys():if d[result] success:print (success)breaktime.sleep(300) # 5 minute
# client.py放在需要得到ip的机器上下行bmc是标识这机器。服务端和客户端都是230。
# rootdiag-server:~# python3 client.py 10.75.92.230 bmc 必须先开启服务端且用python3
# {result: success, data: {slave: {bmc: 10.75.92.230, s3ip-openbmc-bmc: 10.75.92.109, hollywood-bmc: 10.75.92.146,
# server: 10.75.92.228, s3ip-bsp-bmc: 10.75.92.96, pi1: 10.75.92.53, pi2: 10.75.92.152, pi3: 10.75.92.51}}}# rootdiag-server:~# curl -s http://10.75.92.230:8080/api/help | python -m json.tool
# {
# data: {
# slave: {
# bmc: 10.75.92.230,
# hollywood-bmc: 10.75.92.146,
# pi1: 10.75.92.53,
# pi2: 10.75.92.152,
# pi3: 10.75.92.51,
# s3ip-bsp-bmc: 10.75.92.96,
# s3ip-openbmc-bmc: 10.75.92.109,
# server: 10.75.92.228
# }
# },
# result: success
# }# server.py
#!/usr/bin/python3
# -*- coding: utf-8 -*-
from aiohttp import web
import json
import requests
import json
import sysPATH ./usr_slave.json #bmc镜像会刷到master或slave这里获取的是slaver的bmc的ip
def parse_config_file():with open(PATH,r) as load_f:load_dict json.load(load_f)return load_dict
# if __name__ __main__:
# a parse_config_file()
# print(a)
# rootdiag-server:# python server.py
# {uslave: {us3ip-openbmc-bmc: u10.75.92.109, uhollywood-bmc: u10.75.92.146, userver: u10.75.92.228,
# us3ip-bsp-bmc: u10.75.92.96, upi1: u10.75.92.53, upi2: u10.75.92.152, upi3: u10.75.92.51}}def req_post_json(str_url, json_data):headers {Content-Type: application/json}response requests.post(urlstr_url, headersheaders, datajson.dumps(json_data))return response.json()# client.py 即 curl中 -d data {slave : bmc, ip : 10.75.85.34}
def add_slave(data):configs parse_config_file()if not configs:configs {}configs[slave] {}configs[slave][data[slave]] data[ip] # configs[slave][bmc]with open(PATH, w) as write_f:json.dump(configs, write_f, indent4, ensure_asciiFalse) # 将configs写入write_f对象return {result:success,data: configs}def update_slave(data):configs parse_config_file()configs[slave][data[slave]] data[ip]with open(PATH, w) as write_f:json.dump(configs, write_f, indent4, ensure_asciiFalse)return {result:success,data: configs}#1111111111111111111111111111111111111111111111111111111111111111111111111111111
async def get_help(request):configs parse_config_file()return web.json_response({result:success,data: configs})async def slave(request):data await request.json()configs parse_config_file()if slave in data or ip in data:if configs:if configs[slave]:for k in configs[slave].keys():if k data[slave]:if k data[slave] and configs[slave][k] data[ip]:return web.json_response({result:success,data: configs})else:return web.json_response(update_slave(data))return web.json_response(add_slave(data))else:return web.json_response(add_slave(data))def app_factory(args()):app web.Application()app.router.add_get(/api/help, get_help)app.router.add_post(/api/slave, slave)return app// usr_slave.json其中a是python3 client.py 10.75.92.230 a 多出
{slave: {bmc: 10.75.92.230,s3ip-openbmc-bmc: 10.75.92.109,hollywood-bmc: 10.75.92.146,server: 10.75.92.228,s3ip-bsp-bmc: 10.75.92.96,pi1: 10.75.92.53,pi2: 10.75.92.152,pi3: 10.75.92.51,a: 10.75.92.230,}
}# /mnt/data/etc/rc.local
if [ ! -f /usr/local/bin/sshpass ];thenln -snf /mnt/data/etc/sshpass /usr/local/bin #将前者sshpass复制到后面文件夹里
filn -snf /mnt/data/etc/debug.api /usr/local/bin/usr/bin/python3 /mnt/data/etc/client.py 10.75.92.228 s3ip-openbmc-bmc # debug.api
#!/bin/bash
pn$(ps | grep rest | grep runsv |awk {print $1});kill $pn;/usr/local/bin/sshpass -p 1 scp -r li10.75.92.228:/home_a/li/openbmc-s3ip/meta-hua/meta-s3ip/recipes-utils/rest-api/files/* /usr/local/fbpackages/rest-api/# /usr/local/bin/sshpass -p 1 scp -r li10.75.92.228:/home_a/li/openbmc-s3ip/meta-hua/meta-s3ip/recipes-plats/hal/files/*.py /usr/lib/python3.7/site-packages/hal/runsv /etc/sv/restapi
#sv d restapi #停止8.3 curl认证
如下两个middlewares中间件request和response的中间app web.Application(middlewares[jsonerrorhandler, auth_enforcer])。 1.Basic auth最简单的一种户名密码认证方式用base64_encode加密安全性低每次都需要传递用户名和密码用户名和密码很大程度上存在被监听盗取的可能。
客户端curl -u usr:pwd服务端显示如下Headers中字段用base64_decode_auth_headers函数解码获取usr和pwd明文后用creds_validator函数对其加密并与/etc/shaodow下用户名和加密密码段做匹配如果一致则处理curl请求否则返回401: Unauthorized。
import spwd
import crypt
import base64def base64_encode_auth_headers(username, password): # 没用到temp_str username : password# convert bytes stringbytesString temp_str.encode(encodingutf-8)# base64 encodeencodestr base64.b64encode(bytesString)return Basic encodestr.decode()def base64_decode_auth_headers(encodestr):# convert bytes stringbytesString encodestr.encode(encodingutf-8)# base64 decodedecodestr base64.b64decode(bytesString)return decodestr.decode()def creds_validator(username, password):crypted_root_pwd spwd.getspnam(username).sp_pwdcrypted_method, crypted_salt (crypted_root_pwd.split($)[1],crypted_root_pwd.split($)[2])result_str {0}{1}{0}{2}{0}.format($, crypted_method, crypted_salt)crypted_input_passwd crypt.crypt(password, result_str)return crypted_input_passwd spwd.getspnam(username).sp_pwddef basic_auth(authstr):# basic auth for curl,# compare authorization field whit encrypted password in shadow file# PASS :retrun TRUE ; NO PASS :return FALSEencode_str authstr.split( )[1]clearstr base64_decode_auth_headers(encode_str)username clearstr.split(:)[0]password clearstr.split(:)[1]return creds_validator(username, password)2.ACLAccess Control List访问控制列表是由一条或多条规则组成的集合。所谓规则是指描述报文匹配条件 的判断语句这些条件可以是报文的源地址、目的地址、端口号等。 $ sudo cat /etc/shadow | grep test
test:$6$sT8RMKkg$QLhvrR/iSwurIM0Z0.ZVkxPKRvKXueuAx7fZzq5Umffm3ydNbeGujV7mUKnTNYtbpLIbIdJ2.Q4Spw9OUjhl91:16502:0:99999:7:::在我们每次改写密码时都会随机生成一个这样的salt某个固定长度的随机字符串而已。我们登录时输入的明文密码经过上述的演化后与shadow里的密码域进行字符串比较以此来判断是否允许用户登录。
// passwd.c
#include stdio.h
#include string.h
#include unistd.h
#include shadow.h
#include crypt.h
#include errno.hint main(int argc, char *argv[])
{int i, j;char salt[16];char crypt_char[128];struct spwd *shd;/* 参数检查 */if (argc ! 3) {fprintf(stderr, ./passwd USERNAME PASSWORD\n);return -1; } /* 访问shadow文件,参数为所指定的用户名 */shd getspnam(argv[1]);if (shd NULL) {printf(Error: %s\n, strerror(errno));return 0;} strcpy(crypt_char, shd-sp_pwdp);i 0, j 0;/* 读到第三个$符号*/while ((crypt_char[i] ! \0) (j ! 3)) { salt[i] crypt_char[i];if (crypt_char[i] $) {j;}i;} salt[i] \0;printf(salt:\n%s\n, salt);printf(crypt_pw:\n%s\n, shd-sp_pwdp);printf(------------------count ----------------\n);printf(salt:\n%s\n, salt);printf(crypt_pw:\n%s\n, crypt(argv[2], salt));return 0;
}$ gcc passwd.c -o passwd -lcrypt
$ sudo ./passwd test shadow1234
salt:
$6$sT8RMKkg$
crypt_pw:
$6$sT8RMKkg$QLhvrR/iSwurIM0Z0.ZVkxPKRvKXueuAx7fZzq5Umffm3ydNbeGujV7mUKnTNYtbpLIbIdJ2.Q4Spw9OUjhl91
