101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
/* mkdir.c */
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#define COMMON_MODE
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#include "common.c"
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/* mkdir */
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static int _mkdir_error(char * message, int ret);
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static int _mkdir_p(mode_t mode, char * pathname);
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static int _mkdir(int flagp, mode_t mode, int argc, char * argv[])
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{
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int res = 0;
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int i;
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for(i = 0; i < argc; i++)
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{
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if(flagp == 1)
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{
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if(_mkdir_p(mode, argv[i]) != 0)
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res = 2;
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}
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else if(mkdir(argv[i], mode) != 0)
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res = _mkdir_error(argv[i], 2);
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}
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return res;
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}
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static int _mkdir_error(char * message, int ret)
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{
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fprintf(stderr, "%s", "mkdir: ");
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perror(message);
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return ret;
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}
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static int _mkdir_p(mode_t mode, char * pathname)
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{
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char * p;
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struct stat st;
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for(p = pathname; *p != '\0'; p++)
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{
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if(*p != '/')
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continue;
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*p = '\0';
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if(!(stat(pathname, &st) == 0 && S_ISDIR(st.st_mode))
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&& mkdir(pathname, mode) == -1)
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return _mkdir_error(pathname, 2);
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for(*p++ = '/'; *p == '/'; p++);
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if(*p == '\0')
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return 0;
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}
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if(!(stat(pathname, &st) == 0 && S_ISDIR(st.st_mode))
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&& mkdir(pathname, mode) == -1)
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return _mkdir_error(pathname, 2);
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return 0;
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}
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/* usage */
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static int _usage(void)
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{
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fprintf(stderr, "%s", "Usage: mkdir [-p][-m mode] dir...\n\
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-p create any missing intermediate pathname components\n\
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-m file permission bits of the newly-created directory\n");
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return 1;
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}
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/* main */
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int main(int argc, char * argv[])
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{
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mode_t mode = 0777;
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int flagp = 0;
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int o;
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while((o = getopt(argc, argv, "pm:")) != -1)
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switch(o)
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{
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case 'm':
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if(_mode(optarg, &mode) != 0)
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return _usage();
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break;
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case 'p':
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flagp = 1;
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break;
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case '?':
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return _usage();
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}
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if(argc == optind)
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return _usage();
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return _mkdir(flagp, mode, argc - optind, &argv[optind]);
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}
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