78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/limits.h>
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#include <sys/stat.h>
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static int usage()
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{
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fprintf(stderr,"mkdir [OPTION] <target>\n");
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fprintf(stderr," --help display usage and exit\n");
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fprintf(stderr," -p, --parents create parent directories as needed\n");
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return -1;
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}
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int mkdir_main(int argc, char *argv[])
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{
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int symbolic = 0;
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int ret;
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if(argc < 2 || strcmp(argv[1], "--help") == 0) {
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return usage();
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}
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int recursive = (strcmp(argv[1], "-p") == 0 ||
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strcmp(argv[1], "--parents") == 0) ? 1 : 0;
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if(recursive && argc < 3) {
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// -p specified without a path
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return usage();
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}
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if(recursive) {
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argc--;
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argv++;
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}
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char currpath[PATH_MAX], *pathpiece;
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struct stat st;
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while(argc > 1) {
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argc--;
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argv++;
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if(recursive) {
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// reset path
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strcpy(currpath, "");
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// create the pieces of the path along the way
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pathpiece = strtok(argv[0], "/");
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if(argv[0][0] == '/') {
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// prepend / if needed
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strcat(currpath, "/");
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}
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while(pathpiece != NULL) {
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if(strlen(currpath) + strlen(pathpiece) + 2/*NUL and slash*/ > PATH_MAX) {
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fprintf(stderr, "Invalid path specified: too long\n");
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return 1;
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}
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strcat(currpath, pathpiece);
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strcat(currpath, "/");
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if(stat(currpath, &st) != 0) {
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ret = mkdir(currpath, 0777);
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if(ret < 0) {
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fprintf(stderr, "mkdir failed for %s, %s\n", currpath, strerror(errno));
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return ret;
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}
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}
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pathpiece = strtok(NULL, "/");
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}
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} else {
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ret = mkdir(argv[0], 0777);
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if(ret < 0) {
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fprintf(stderr, "mkdir failed for %s, %s\n", argv[0], strerror(errno));
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return ret;
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}
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}
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}
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return 0;
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}
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