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apps/examples/stat: Improve decoding of file mode.

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This commit is contained in:
Gregory Nutt 2017-02-13 16:19:55 -06:00
parent 1b297d057e
commit 78f92746c4
1 changed files with 40 additions and 17 deletions
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57
examples/stat/stat_main.c
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@ -109,48 +109,71 @@ static void endusage(void)
static void dump_stat(FAR struct stat *buf)
{
FAR const char *typename;
char details[] = "----------";
if (S_ISLNK(buf->st_mode))
{
typename = "Link";
details[0] = 'l'; /* Takes precedence over type of the target */
}
else if (S_ISCHR(buf->st_mode))
{
typename = "Character driver";
details[0] = 'c';
}
else if (S_ISDIR(buf->st_mode))
{
typename = "Directory";
details[0] = 'd';
}
else if (S_ISBLK(buf->st_mode))
{
typename = "Block driver";
details[0] = 'b';
}
else if (S_ISREG(buf->st_mode))
else if (!S_ISREG(buf->st_mode))
{
typename = "Regular file";
details[0] = '?';
}
else if (S_ISMQ(buf->st_mode))
if ((buf->st_mode & S_IRUSR) != 0)
{
typename = "Message queue";
details[1]='r';
}
else if (S_ISSEM(buf->st_mode))
if ((buf->st_mode & S_IWUSR) != 0)
{
typename = "Named semaphore";
details[2]='w';
}
else if (S_ISSHM(buf->st_mode))
if ((buf->st_mode & S_IXUSR) != 0)
{
typename = "Shared memory";
details[3]='x';
}
else
if ((buf->st_mode & S_IRGRP) != 0)
{
typename = "Unknown file type";
details[4]='r';
}
if ((buf->st_mode & S_IWGRP) != 0)
{
details[5]='w';
}
if ((buf->st_mode & S_IXGRP) != 0)
{
details[6]='x';
}
if ((buf->st_mode & S_IROTH) != 0)
{
details[7]='r';
}
if ((buf->st_mode & S_IWOTH) != 0)
{
details[8]='w';
}
printf("\nstat:\n");
printf(" st_mode: %04x\n", buf->st_mode);
printf(" %s\n", typename);
printf(" st_mode: %04x %s\n", buf->st_mode, details);
printf(" st_size: %llu\n", (unsigned long long)buf->st_size);
printf(" st_blksize: %lu\n", (unsigned long)buf->st_blksize);
printf(" st_blocks: %lu\n", (unsigned long)buf->st_blocks);