Annotation of src/usr.bin/mg/dir.c, Revision 1.30
1.30 ! florian 1: /* $OpenBSD: dir.c,v 1.29 2016/09/12 18:32:54 millert 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';
1.29 millert 30: if (getcwd(mgcwd, sizeof(mgcwd)) == NULL)
1.10 vincent 31: ewprintf("Can't get current directory!");
1.29 millert 32: if (mgcwd[0] != '\0' && !(mgcwd[0] == '/' && mgcwd[1] == '\0'))
1.19 kjell 33: (void)strlcat(mgcwd, "/", sizeof(mgcwd));
1.1 deraadt 34: }
35:
36: /*
1.12 db 37: * Change current working directory.
1.1 deraadt 38: */
1.3 millert 39: /* ARGSUSED */
40: int
1.8 vincent 41: changedir(int f, int n)
1.1 deraadt 42: {
1.17 kjell 43: char bufc[NFILEN], *bufp;
1.1 deraadt 44:
1.17 kjell 45: (void)strlcpy(bufc, mgcwd, sizeof(bufc));
46: if ((bufp = eread("Change default directory: ", bufc, NFILEN,
1.18 kjell 47: EFDEF | EFNEW | EFCR | EFFILE)) == NULL)
1.12 db 48: return (ABORT);
1.14 kjell 49: else if (bufp[0] == '\0')
50: return (FALSE);
1.18 kjell 51: /* Append trailing slash */
1.1 deraadt 52: if (chdir(bufc) == -1) {
1.25 lum 53: dobeep();
1.1 deraadt 54: ewprintf("Can't change dir to %s", bufc);
1.3 millert 55: return (FALSE);
1.1 deraadt 56: }
1.29 millert 57: if ((bufp = getcwd(mgcwd, sizeof(mgcwd))) == NULL) {
58: if (bufc[0] == '/')
59: (void)strlcpy(mgcwd, bufc, sizeof(mgcwd));
60: else
61: (void)strlcat(mgcwd, bufc, sizeof(mgcwd));
62: }
1.18 kjell 63: if (mgcwd[strlen(mgcwd) - 1] != '/')
64: (void)strlcat(mgcwd, "/", sizeof(mgcwd));
1.29 millert 65: ewprintf("Current directory is now %s", mgcwd);
1.18 kjell 66: return (TRUE);
1.1 deraadt 67: }
68:
69: /*
1.12 db 70: * Show current directory.
1.1 deraadt 71: */
1.3 millert 72: /* ARGSUSED */
73: int
1.8 vincent 74: showcwdir(int f, int n)
1.1 deraadt 75: {
1.17 kjell 76: ewprintf("Current directory: %s", mgcwd);
77: return (TRUE);
78: }
79:
80: int
81: getcwdir(char *buf, size_t len)
82: {
83: if (strlcpy(buf, mgcwd, len) >= len)
84: return (FALSE);
85:
1.20 jasper 86: return (TRUE);
87: }
88:
89: /* Create the directory and it's parents. */
90: /* ARGSUSED */
91: int
92: makedir(int f, int n)
93: {
1.27 lum 94: return (ask_makedir());
1.23 lum 95: }
96:
97: int
1.27 lum 98: ask_makedir(void)
1.23 lum 99: {
100:
1.22 lum 101: char bufc[NFILEN];
1.27 lum 102: char *path;
1.20 jasper 103:
104: if (getbufcwd(bufc, sizeof(bufc)) != TRUE)
105: return (ABORT);
1.22 lum 106: if ((path = eread("Make directory: ", bufc, NFILEN,
1.20 jasper 107: EFDEF | EFNEW | EFCR | EFFILE)) == NULL)
108: return (ABORT);
1.22 lum 109: else if (path[0] == '\0')
1.20 jasper 110: return (FALSE);
1.27 lum 111:
112: return (do_makedir(path));
113: }
114:
115: int
116: do_makedir(char *path)
117: {
118: struct stat sb;
119: int finished, ishere;
1.30 ! florian 120: mode_t dir_mode, f_mode, oumask;
1.27 lum 121: char *slash;
1.20 jasper 122:
1.22 lum 123: if ((path = adjustname(path, TRUE)) == NULL)
1.20 jasper 124: return (FALSE);
125:
1.24 florian 126: /* Remove trailing slashes */
127: slash = strrchr(path, '\0');
128: while (--slash > path && *slash == '/')
129: *slash = '\0';
1.26 lum 130:
131: slash = path;
1.20 jasper 132:
133: oumask = umask(0);
1.30 ! florian 134: f_mode = 0777 & ~oumask;
! 135: dir_mode = f_mode | S_IWUSR | S_IXUSR;
1.20 jasper 136:
137: for (;;) {
138: slash += strspn(slash, "/");
139: slash += strcspn(slash, "/");
140:
141: finished = (*slash == '\0');
142: *slash = '\0';
143:
144: ishere = !stat(path, &sb);
1.21 lum 145: if (finished && ishere) {
1.25 lum 146: dobeep();
1.21 lum 147: ewprintf("Cannot create directory %s: file exists",
148: path);
149: return(FALSE);
150: } else if (!finished && ishere && S_ISDIR(sb.st_mode)) {
1.20 jasper 151: *slash = '/';
152: continue;
153: }
154:
1.30 ! florian 155: if (mkdir(path, finished ? f_mode : dir_mode) == 0) {
! 156: if (f_mode > 0777 && chmod(path, f_mode) < 0) {
1.20 jasper 157: umask(oumask);
158: return (ABORT);
159: }
160: } else {
161: if (!ishere || !S_ISDIR(sb.st_mode)) {
1.25 lum 162: if (!ishere) {
163: dobeep();
1.20 jasper 164: ewprintf("Creating directory: "
165: "permission denied, %s", path);
1.25 lum 166: } else
1.20 jasper 167: eerase();
168:
169: umask(oumask);
170: return (FALSE);
171: }
172: }
173:
174: if (finished)
175: break;
176:
177: *slash = '/';
178: }
179:
180: eerase();
181: umask(oumask);
1.3 millert 182: return (TRUE);
1.1 deraadt 183: }
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