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#include <stdio.h> | |
#include <unistd.h> | |
#include <sys/stat.h> | |
#include <sys/types.h> | |
#include <dirent.h> | |
#include <fcntl.h> | |
#include <errno.h> | |
#include <memory.h> | |
#include <linux/limits.h> | |
#include <sys/wait.h> | |
void fill_attrs(char* attrs, mode_t mode) { | |
if (S_ISDIR(mode)) { | |
attrs[0] = 'd'; | |
} | |
if (S_IRUSR & mode) { | |
attrs[1] = 'r'; | |
} | |
if (S_IWUSR & mode) { | |
attrs[2] = 'w'; | |
} | |
if (S_IXUSR & mode) { | |
attrs[3] = 'x'; | |
} | |
if (S_IRGRP & mode) { | |
attrs[4] = 'r'; | |
} | |
if (S_IWGRP & mode) { | |
attrs[5] = 'w'; | |
} | |
if (S_IXGRP & mode) { | |
attrs[6] = 'x'; | |
} | |
if (S_IROTH & mode) { | |
attrs[7] = 'r'; | |
} | |
if (S_IWOTH & mode) { | |
attrs[8] = 'w'; | |
} | |
if (S_IXOTH & mode) { | |
attrs[9] = 'x'; | |
} | |
} | |
void processDir(const char* d) { | |
DIR* dir = NULL; | |
chdir(d); | |
dir = opendir("./"); | |
/* | |
char newdir[PATH_MAX]; | |
strcpy(newdir, "./"); | |
strcat(newdir, d); | |
dir = opendir(newdir); | |
printf("\npid %d, dir %s\n", getpid(), newdir); | |
*/ | |
if (dir == NULL) { | |
printf("Cannot open directory %s, err: %d\n", d, errno); | |
return; | |
} | |
struct dirent* ent = NULL; | |
struct stat st; | |
char attrs[11]; // drwxrwxrwx | |
while ((ent = readdir(dir)) != NULL) { | |
strcpy(attrs, "----------"); | |
lstat(ent->d_name, &st); | |
fill_attrs(attrs, st.st_mode); | |
printf("%s %10ld %s", attrs, st.st_size, ent->d_name); | |
if (S_ISLNK(st.st_mode)) { | |
char buf[PATH_MAX + 1]; | |
readlink(ent->d_name, buf, PATH_MAX + 1); | |
struct stat st1; | |
if (stat(buf, &st1) == -1) { | |
printf(" symlink broken"); | |
} else { | |
printf(" symlink"); | |
} | |
} | |
if ((S_ISDIR(st.st_mode) != 0) && | |
(strncmp(ent->d_name, ".", 1) != 0) && | |
(strncmp(ent->d_name, "..", 2) != 0)) { | |
if (fork() == 0) { | |
// child | |
processDir(ent->d_name); | |
break; | |
} else { | |
//printf("\nDir: %s\n", ent->d_name); | |
int status; | |
wait(&status); | |
//break; | |
} | |
} | |
printf("\n"); | |
} | |
} | |
int main(int argc, char const *argv[]) { | |
printf("My pid %d\n", getpid()); | |
if (argc > 1) { | |
processDir(argv[1]); | |
} else { | |
processDir("."); | |
} | |
printf("\n\n\n\n\n"); | |
return 0; | |
} |
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