, . .
:
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
:
int stat(const char *filename, struct stat *buf); -
: st_mode /* , */
:
S_IFMT 0170000
S_IFREG 0100000
S_IFDIR 0040000
student@loony ~/new $ ls -lF
-rwx------ 3 student student 187 2012-12-23 17:20 1.c*
drwxrwxr-x 2 student student 4096 2012-12-23 16:48 p1/
-rwxrwxr-x 1 student student 8623 2012-12-23 20:29 prog*
lrwxrwxrwx 1 student student 2 2012-12-23 17:22 s1 -> p1/
lrwxrwxrwx 1 student student 3 2012-12-23 17:24 s3 -> 1.c*
student@loony ~/new $./prog s1
s1:
student@loony ~/new $./prog s3
s3:
:
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
int main(int argc, char **argv)
{struct stat s; stat(argv[1], &s);
int q; static char str[22];
q=s.st_mode & S_IFMT;
switch (q)
{ case S_IFREG: sprintf(str," "); break;
case S_IFDIR: sprintf(str,""); break;
default: sprintf(str,"???"); break;}
fprintf(stdout," %s: %s\n",argv[1],str);}
, . .
:
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
:
int stat(const char *filename, struct stat *buf); -
: st_mode /* , */
:
S_IFMT 0170000
S_IFDIR 0040000
student@loony ~/new $ ls -lF
-rwx------ 3 student student 187 2012-12-23 17:20 1.c*
drwxrwxr-x 2 student student 4096 2012-12-23 16:48 p1/
-rwxrwxr-x 1 student student 8623 2012-12-23 20:29 prog*
lrwxrwxrwx 1 student student 2 2012-12-23 17:22 s1 -> p1/
lrwxrwxrwx 1 student student 3 2012-12-23 17:24 s3 -> 1.c*
student@loony ~/new $./prog s1
s1:
student@loony ~/new $./prog 1.
1.:???
:
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
int main(int argc, char **argv)
{struct stat s; stat(argv[1], &s);
int q; static char str[22];
q=s.st_mode & S_IFMT;
switch (q)
{case S_IFDIR: sprintf(str,""); break;
default: sprintf(str,"???"); break;}
fprintf(stdout," %s: %s\n",argv[1],str);}
, . .
|
|
|
:
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
:
int lstat(const char *filename, struct stat *buf); -
: st_mode /* , */
:
S_IFMT 0170000
S_IFLNK 0120000
S_IFREG 0100000
S_IFDIR 0040000
student@loony ~/new $ ls -lF
-rwx------ 3 student student 187 2012-12-23 17:20 1.c*
drwxrwxr-x 2 student student 4096 2012-12-23 16:48 p1/
-rwxrwxr-x 1 student student 8623 2012-12-23 20:29 prog*
lrwxrwxrwx 1 student student 2 2012-12-23 17:22 s1 -> p1/
lrwxrwxrwx 1 student student 3 2012-12-23 17:24 s3 -> 1.c*
student@loony ~/new $./prog s1
s1: C
student@loony ~/new $./prog p1
p1:
student@loony ~/new $./prog 1.c
1.:
:
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
int main(int argc, char **argv)
{ struct stat lst; lstat(argv[1], &lst);
int q; static char str[22];
switch (lst.st_mode & S_IFMT)
{case S_IFLNK: sprintf(str,"C "); break;
case S_IFREG: sprintf(str," "); break;
case S_IFDIR: sprintf(str,""); break;
default: sprintf(str,"???"); break;}
fprintf(stdout," %s: %s\n",argv[1],str);}
, . .
:
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
:
int lstat(const char *filename, struct stat *buf); -
: st_mode /* , */
:
S_IFMT 0170000
S_IFLNK 0120000
student@loony ~/new $ ls -lF
-rwx------ 3 student student 187 2012-12-23 17:20 1.c*
drwxrwxr-x 2 student student 4096 2012-12-23 16:48 p1/
-rwxrwxr-x 1 student student 8623 2012-12-23 20:29 prog*
lrwxrwxrwx 1 student student 2 2012-12-23 17:22 s1 -> p1/
lrwxrwxrwx 1 student student 3 2012-12-23 17:24 s3 -> 1.c*
student@loony ~/new $./prog s1
s1: C
student@loony ~/new $./prog 1.
1.:???
student@loony ~/new $./prog p1
p1:???
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
int main(int argc, char **argv)
{ struct stat lst; lstat(argv[1], &lst);
int q; static char str[22];
switch (lst.st_mode & S_IFMT)
{case S_IFLNK: sprintf(str,"C "); break;
default: sprintf(str,"???"); break;}
fprintf(stdout," %s: %s\n",argv[1],str);}
