p4-4.c

SUN Solaris8平台下进程间通信

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
    int         i;
    struct stat buf;
    char        *ptr;
    for (i = 1; i < argc; i++) {
       printf("%s: ", argv[i]);
       if (lstat(argv[i], &buf) < 0) {
          printf("lstat error for %s\n", argv[i]);
          continue;
       }
       if      (S_ISREG(buf.st_mode))  ptr = "regular";
       else if (S_ISDIR(buf.st_mode))  ptr = "directory";
       else if (S_ISCHR(buf.st_mode))  ptr = "character special";
       else if (S_ISBLK(buf.st_mode))  ptr = "block special";
       else if (S_ISFIFO(buf.st_mode)) ptr = "fifo";
#ifdef S_ISLNK
       else if (S_ISLNK(buf.st_mode)) ptr = "symbolic link";
#endif
#ifdef S_ISSOCK
       else if (S_ISSOCK(buf.st_mode)) ptr = "socket";
#endif
       else  ptr = " ** unknown mode ** ";
       printf("%s\n", ptr);
    }
    exit(0);
}