读取/proc/cpuinfo获取CPU信息demo

#include<stdlib.h> #include<stdio.h> #include <string.h> typedef struct _CPU_INFO { char Company[256]; char Model[256]; char Family[256]; char Brand[512]; }CPUINFO,*PCPU_INFO; void FillCPUStruct(PCPU_INFO cpuInfo) { FILE *fp; int nread = 0; char *file = "/proc/cpuinfo"; char *buffer = NULL; char content[40]=""; size_t len = 0; fp = fopen(file,"rb"); if(fp == NULL) { printf("error happen to open:%s\n",file); return; } while(nread=getline(&buffer,&len,fp)!=-1) { if(strstr(buffer,"vendor_id")!=NULL) { buffer[strlen(buffer)-1]=0; sscanf(buffer,"%s%s%s",content,content,content); strcpy(cpuInfo->Company,content); } if(strstr(buffer,"cpu family")!=NULL) { buffer[strlen(buffer)-1]=0; //printf("len:buffer=%d:%d\n",len,strlen(buffer)); sscanf(buffer,"%s%s%s%s",content,content,content,content); strcpy(cpuInfo->Family,content); //printf("cpu family=%s\n",content); } if(strstr(buffer,"model")!=NULL) { if(strstr(buffer,"model name")!=NULL) { buffer[strlen(buffer)-1]=0; //printf("model name buffer=%s\n",buffer); char *ptr = strchr(buffer,':'); //printf("model name buffer=%s\n",buffer); //strncpy(content,(char*)&buffer+strstr(buffer,":"),strlen(buffer)); //sscanf(buffer,"%s%s%s%s",content,content,content,content); strcpy(content,buffer+(ptr-buffer)+2); strcpy(cpuInfo->Brand,content); //printf("model name=%s\n",buffer+(ptr-buffer)+2); }else{ buffer[strlen(buffer)-1]=0; //printf("model buffer=%s\n",buffer); sscanf(buffer,"%s%s%s",content,content,content); strcpy(cpuInfo->Model,content); //printf("model=%s\n",content); } } } } void print_cpu_info(PCPU_INFO cpustruct) { if(cpustruct == NULL) return; printf("CPU Information:\n"); printf("\tCPU Manufacturer: %s\n", cpustruct->Company); printf("\tCPU Model: %s\n", cpustruct->Model); printf("\tCPU CPU Family: %s\n", cpustruct->Family); printf("\tCPU Brand Name: %s\n", cpustruct->Brand); //printf("\tCPU Info hash value: %s\n", cpustruct->md5_hash); } void InitCPUStruct(PCPU_INFO CPUStruct) { if(CPUStruct == NULL) { return; } memset(CPUStruct,0,sizeof(*CPUStruct)); } int main() { CPUINFO cpu_info; FillCPUStruct(&cpu_info); print_cpu_info(&cpu_info); }