mkdir_u.c

/*	mkdir - toolbox
	Copyright 2015 libdll.so

	This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
*/

#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <sys/stat.h>

static void usage() {
	fprintf(stderr,
		"Usage: mkdir"
#if defined _WIN32 && !defined _WIN32_WNT_NATIVE
		".exe"
#endif
		" [<option>] <target> [...]\n");
	fprintf(stderr,"    --help           display usage and exit\n");
	fprintf(stderr,"    -p, --parents    create parent directories as needed\n");
	//return -1;
}

int mkdir_main(int argc, char *argv[]) {
	int ret;
	int recursive = 0;
	if(argc > 1 && (strcmp(argv[1], "-p") == 0 || strcmp(argv[1], "--parents") == 0)) {
		recursive = 1;
		argc--;
		argv++;
	}

	if(argc < 2 || strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0) {
		usage();
		return -1;
	}

	char currpath[PATH_MAX], *pathpiece;
	struct stat st;

	while(argc > 1) {
		argc--;
		argv++;
		if(recursive) {
			// reset path
			//strcpy(currpath, "");
			*currpath = 0;
			// create the pieces of the path along the way
			pathpiece = strtok(argv[0], "/");
			if(argv[0][0] == '/') {
				// prepend / if needed
				strcat(currpath, "/");
			}
			while(pathpiece != NULL) {
				if(strlen(currpath) + strlen(pathpiece) + 2/*NUL and slash*/ > PATH_MAX) {
					fprintf(stderr, "Invalid path specified: too long\n");
					return 1;
				}
				strcat(currpath, pathpiece);
				strcat(currpath, "/");
				if(stat(currpath, &st) < 0) {
#if defined _WIN32 && !defined _WIN32_WNT_NATIVE
					ret = mkdir(currpath);
#else
					ret = mkdir(currpath, 0777);
#endif
					if(ret < 0) {
						fprintf(stderr, "mkdir failed for %s, %s\n", currpath, strerror(errno));
						return ret;
					}
				}
				pathpiece = strtok(NULL, "/");
			}
		} else {
#if defined _WIN32 && !defined _WIN32_WNT_NATIVE
			ret = mkdir(argv[0]);
#else
			ret = mkdir(argv[0], 0777);
#endif
			if(ret < 0) {
				fprintf(stderr, "mkdir failed for %s, %s\n", argv[0], strerror(errno));
				return ret;
			}
		}
	}

	return 0;
}