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perms.c
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perms.c
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#include <sys/types.h>
#include "my_ls.h"
void finish_permissions(mode_t st_mode)
{
my_putchar((st_mode & S_IRGRP) ? ('r') : ('-'));
my_putchar((st_mode & S_IWGRP) ? ('w') : ('-'));
if ((st_mode & S_ISGID) && !(st_mode & S_IXGRP))
my_putchar('S');
else if ((st_mode & S_ISGID) && (st_mode & S_IXGRP))
my_putchar('s');
else
my_putchar((st_mode & S_IXGRP) ? ('x') : ('-'));
my_putchar((st_mode & S_IROTH) ? ('r') : ('-'));
my_putchar((st_mode & S_IWOTH) ? ('w') : ('-'));
if ((st_mode & S_ISVTX) && !(st_mode & S_IXOTH))
my_putchar('T');
else if ((st_mode & S_ISVTX) && (st_mode & S_IXOTH))
my_putchar('t');
else
my_putchar((st_mode & S_IXOTH) ? ('x') : ('-'));
}
void print_permissions(mode_t st_mode)
{
if (S_ISDIR(st_mode) && !(S_ISLNK(st_mode)))
my_putchar('d');
else if (S_ISLNK(st_mode))
my_putchar('l');
else if (S_ISCHR(st_mode))
my_putchar('c');
else if (S_ISBLK(st_mode))
my_putchar('b');
else if (S_ISFIFO(st_mode))
my_putchar('p');
else if (S_ISSOCK(st_mode))
my_putchar('s');
else
my_putchar('-');
my_putchar((st_mode & S_IRUSR) ? ('r') : ('-'));
my_putchar((st_mode & S_IWUSR) ? ('w') : ('-'));
if ((st_mode & S_ISUID) && !(st_mode & S_IXUSR))
my_putchar('S');
else if ((st_mode & S_ISUID) && (st_mode & S_IXUSR))
my_putchar('s');
else
my_putchar((st_mode & S_IXUSR) ? ('x') : ('-'));
finish_permissions(st_mode);
}