Annotation of src/usr.bin/mg/dir.c, Revision 1.28
1.28 ! bcallah 1: /* $OpenBSD: dir.c,v 1.27 2014/04/03 20:17:12 lum Exp $ */
1.13 kjell 2:
3: /* This file is in the public domain. */
1.4 niklas 4:
1.1 deraadt 5: /*
6: * Name: MG 2a
7: * Directory management functions
8: * Created: Ron Flax (ron@vsedev.vse.com)
9: * Modified for MG 2a by Mic Kaczmarczik 03-Aug-1987
10: */
11:
1.28 ! bcallah 12: #include <sys/queue.h>
1.20 jasper 13: #include <sys/stat.h>
1.28 ! bcallah 14: #include <signal.h>
! 15: #include <stdio.h>
! 16: #include <string.h>
! 17: #include <unistd.h>
1.20 jasper 18:
1.1 deraadt 19: #include "def.h"
20:
1.17 kjell 21: static char mgcwd[NFILEN];
1.1 deraadt 22:
23: /*
1.12 db 24: * Initialize anything the directory management routines need.
1.1 deraadt 25: */
1.5 art 26: void
1.8 vincent 27: dirinit(void)
1.1 deraadt 28: {
1.17 kjell 29: mgcwd[0] = '\0';
30: if (getcwd(mgcwd, sizeof(mgcwd)) == NULL) {
1.10 vincent 31: ewprintf("Can't get current directory!");
32: chdir("/");
33: }
1.19 kjell 34: if (!(mgcwd[0] == '/' && mgcwd [1] == '\0'))
35: (void)strlcat(mgcwd, "/", sizeof(mgcwd));
1.1 deraadt 36: }
37:
38: /*
1.12 db 39: * Change current working directory.
1.1 deraadt 40: */
1.3 millert 41: /* ARGSUSED */
42: int
1.8 vincent 43: changedir(int f, int n)
1.1 deraadt 44: {
1.17 kjell 45: char bufc[NFILEN], *bufp;
1.1 deraadt 46:
1.17 kjell 47: (void)strlcpy(bufc, mgcwd, sizeof(bufc));
48: if ((bufp = eread("Change default directory: ", bufc, NFILEN,
1.18 kjell 49: EFDEF | EFNEW | EFCR | EFFILE)) == NULL)
1.12 db 50: return (ABORT);
1.14 kjell 51: else if (bufp[0] == '\0')
52: return (FALSE);
1.18 kjell 53: /* Append trailing slash */
1.1 deraadt 54: if (chdir(bufc) == -1) {
1.25 lum 55: dobeep();
1.1 deraadt 56: ewprintf("Can't change dir to %s", bufc);
1.3 millert 57: return (FALSE);
1.1 deraadt 58: }
1.18 kjell 59: if ((bufp = getcwd(mgcwd, sizeof(mgcwd))) == NULL)
60: panic("Can't get current directory!");
61: if (mgcwd[strlen(mgcwd) - 1] != '/')
62: (void)strlcat(mgcwd, "/", sizeof(mgcwd));
63: ewprintf("Current directory is now %s", bufp);
64: return (TRUE);
1.1 deraadt 65: }
66:
67: /*
1.12 db 68: * Show current directory.
1.1 deraadt 69: */
1.3 millert 70: /* ARGSUSED */
71: int
1.8 vincent 72: showcwdir(int f, int n)
1.1 deraadt 73: {
1.17 kjell 74: ewprintf("Current directory: %s", mgcwd);
75: return (TRUE);
76: }
77:
78: int
79: getcwdir(char *buf, size_t len)
80: {
81: if (strlcpy(buf, mgcwd, len) >= len)
82: return (FALSE);
83:
1.20 jasper 84: return (TRUE);
85: }
86:
87: /* Create the directory and it's parents. */
88: /* ARGSUSED */
89: int
90: makedir(int f, int n)
91: {
1.27 lum 92: return (ask_makedir());
1.23 lum 93: }
94:
95: int
1.27 lum 96: ask_makedir(void)
1.23 lum 97: {
98:
1.22 lum 99: char bufc[NFILEN];
1.27 lum 100: char *path;
1.20 jasper 101:
102: if (getbufcwd(bufc, sizeof(bufc)) != TRUE)
103: return (ABORT);
1.22 lum 104: if ((path = eread("Make directory: ", bufc, NFILEN,
1.20 jasper 105: EFDEF | EFNEW | EFCR | EFFILE)) == NULL)
106: return (ABORT);
1.22 lum 107: else if (path[0] == '\0')
1.20 jasper 108: return (FALSE);
1.27 lum 109:
110: return (do_makedir(path));
111: }
112:
113: int
114: do_makedir(char *path)
115: {
116: struct stat sb;
117: int finished, ishere;
118: mode_t dir_mode, mode, oumask;
119: char *slash;
1.20 jasper 120:
1.22 lum 121: if ((path = adjustname(path, TRUE)) == NULL)
1.20 jasper 122: return (FALSE);
123:
1.24 florian 124: /* Remove trailing slashes */
125: slash = strrchr(path, '\0');
126: while (--slash > path && *slash == '/')
127: *slash = '\0';
1.26 lum 128:
129: slash = path;
1.20 jasper 130:
131: oumask = umask(0);
132: mode = 0777 & ~oumask;
133: dir_mode = mode | S_IWUSR | S_IXUSR;
134:
135: for (;;) {
136: slash += strspn(slash, "/");
137: slash += strcspn(slash, "/");
138:
139: finished = (*slash == '\0');
140: *slash = '\0';
141:
142: ishere = !stat(path, &sb);
1.21 lum 143: if (finished && ishere) {
1.25 lum 144: dobeep();
1.21 lum 145: ewprintf("Cannot create directory %s: file exists",
146: path);
147: return(FALSE);
148: } else if (!finished && ishere && S_ISDIR(sb.st_mode)) {
1.20 jasper 149: *slash = '/';
150: continue;
151: }
152:
153: if (mkdir(path, finished ? mode : dir_mode) == 0) {
154: if (mode > 0777 && chmod(path, mode) < 0) {
155: umask(oumask);
156: return (ABORT);
157: }
158: } else {
159: if (!ishere || !S_ISDIR(sb.st_mode)) {
1.25 lum 160: if (!ishere) {
161: dobeep();
1.20 jasper 162: ewprintf("Creating directory: "
163: "permission denied, %s", path);
1.25 lum 164: } else
1.20 jasper 165: eerase();
166:
167: umask(oumask);
168: return (FALSE);
169: }
170: }
171:
172: if (finished)
173: break;
174:
175: *slash = '/';
176: }
177:
178: eerase();
179: umask(oumask);
1.3 millert 180: return (TRUE);
1.1 deraadt 181: }
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