1 /* Ltrace Test : count-record.c. 2 Objectives : Verify that Ltrace can count all the system calls in 3 execution and report a summary on exit. 4 5 This file was written by Yao Qi <qiyao (at) cn.ibm.com>. */ 6 7 #include <stdio.h> 8 #include <unistd.h> 9 #include <sys/syscall.h> 10 #include <sys/stat.h> 11 #include <errno.h> 12 13 void exit (int); 14 15 #define BUF_SIZE 100 16 17 /* Do as many operations as possible to record these calls. */ 18 int 19 main () 20 { 21 FILE* fp; 22 char s[]="system_calls"; 23 char buffer[BUF_SIZE]; 24 struct stat state; 25 26 fp = fopen ("system_calls.tmp", "w"); 27 if (fp == NULL) 28 { 29 printf("Can not create system_calls.tmp\n"); 30 exit (0); 31 } 32 33 fwrite(s, sizeof(s), 1, fp); 34 fseek (fp, 0, SEEK_CUR); 35 fread(buffer, sizeof(s), 1, fp); 36 fclose(fp); 37 38 getcwd (buffer, BUF_SIZE); 39 chdir ("."); 40 symlink ("system_calls.tmp", "system_calls.link"); 41 remove("system_calls.link"); 42 rename ("system_calls.tmp", "system_calls.tmp1"); 43 stat ("system_calls.tmp", &state); 44 access ("system_calls.tmp", R_OK); 45 remove("system_calls.tmp1"); 46 47 mkdir ("system_call_mkdir", 0777); 48 rmdir ("system_call_mkdir"); 49 50 return 0; 51 } 52
