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/* mkdir.c - Make directories
*
* Copyright 2012 Georgi Chorbadzhiyski <georgi@unixsol.org>
*
* See http://opengroup.org/onlinepubs/9699919799/utilities/mkdir.html
USE_MKDIR(NEWTOY(mkdir, "<1vpm:", TOYFLAG_BIN|TOYFLAG_UMASK))
config MKDIR
bool "mkdir"
default y
help
usage: mkdir [-vp] [-m mode] [dirname...]
Create one or more directories.
-m set permissions of directory to mode.
-p make parent directories as needed.
-v verbose
*/
#define FOR_mkdir
#include "toys.h"
GLOBALS(
char *arg_mode;
)
// flags: 1=make last dir (with mode lastmode, otherwise skips last component)
// 2=make path (already exists is ok)
// 4=verbose
// returns 0 = path ok, 1 = error
int mkpathat(int atfd, char *dir, mode_t lastmode, int flags)
{
struct stat buf;
char *s;
// mkdir -p one/two/three is not an error if the path already exists,
// but is if "three" is a file. The others we dereference and catch
// not-a-directory along the way, but the last one we must explicitly
// test for. Might as well do it up front.
if (!fstatat(atfd, dir, &buf, 0) && !S_ISDIR(buf.st_mode)) {
errno = EEXIST;
return 1;
}
// Skip leading / of absolute paths
while (*dir == '/') dir++;
for (s=dir; ;s++) {
char save = 0;
mode_t mode = (0777&~toys.old_umask)|0300;
// Skip leading / of absolute paths.
if (*s == '/' && (flags&2)) {
save = *s;
*s = 0;
} else if (*s) continue;
// Use the mode from the -m option only for the last directory.
if (!save) {
if (flags&1) mode = lastmode;
else break;
}
if (mkdirat(atfd, dir, mode)) {
if (!(flags&2) || errno != EEXIST) return 1;
} else if (flags&4)
fprintf(stderr, "%s: created directory '%s'\n", toys.which->name, dir);
if (!(*s = save)) break;
}
return 0;
}
void mkdir_main(void)
{
char **s;
mode_t mode = (0777&~toys.old_umask);
if (TT.arg_mode) mode = string_to_mode(TT.arg_mode, 0777);
// Note, -p and -v flags line up with mkpathat() flags
for (s=toys.optargs; *s; s++)
if (mkpathat(AT_FDCWD, *s, mode, toys.optflags|1))
perror_msg("'%s'", *s);
}
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