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int system(const char * string);
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main()
{
system(“ls -al /etc/passwd /etc/shadow”);
}
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-r--------- 1 root root 572 Sep 2 15 :34 /etc/shado
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char tmp[];
sprintf(tmp,"/bin/mount -t vfat %s /mnt/usb",dev);
system(tmp);
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#include
#include
#include
#include
int system(const char * cmdstring)
{
pid_t pid;
int status;
if(cmdstring == NULL){
return (1);
}
if((pid = fork())<0){
status = -1;
}
else if(pid == 0){
execl("/bin/sh", "sh", "-c", cmdstring, (char *)0);
-exit(127); //×Ó½ø³ÌÕý³£Ö´ÐÐÔò²»»áÖ´ÐдËÓï¾ä
}
else{
while(waitpid(pid, &status, 0) < 0){
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struct list_head {
struct list_head *next, *prev;
};
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