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1.1 root 1: # include <stdio.h>
2: # include <ingres.h>
3: # include <aux.h>
4: # include <opsys.h>
5: # include <sccs.h>
6:
7: SCCSID(@(#)usersetup.c 7.1 2/5/81)
8:
9: /*
10: ** Initialize Users File From Passwd File
11: **
12: ** Everyone in /etc/passwd is entered into the users file. All
13: ** users can access all databases.
14: **
15: ** User codes are assigned sequentially. This should therefore
16: ** probably be run once only, when INGRES is first installed.
17: ** Otherwise, usercodes can change mysteriously.
18: **
19: ** The optional parameter replaces the root of the INGRES subtree
20: ** as found in /etc/passwd. The INGRES user must be installed
21: ** (with that name) when usersetup is run. If this parameter
22: ** is a minus ("-"), output goes to the standard output.
23: **
24: ** The initialization file is initialized to "<home>/.ingres",
25: ** where <home> is the home directory in the passwd file.
26: */
27:
28: main(argc, argv)
29: int argc;
30: char **argv;
31: {
32: register int i;
33: char buf[MAXLINE + 1];
34: char *pathname;
35: register char *code;
36: char *field[UF_NFIELDS];
37: register int iop;
38: extern char *Proc_name;
39: char *stat = "000001";
40:
41: Proc_name = "USERSETUP";
42: pathname = NULL;
43: if (argc > 1)
44: {
45: argc--;
46: stat = *++argv;
47: }
48:
49: code = "aa";
50: if ((iop = (int) fopen("/etc/passwd", "r")) == NULL)
51: syserr(0, "cannot open /etc/passwd for reading");
52:
53: /* scan for INGRES in /etc/passwd */
54: while (fgets(buf, MAXLINE, iop))
55: {
56: i = decode(buf, field);
57: if (!sequal(USERINGRES, field[0]))
58: continue;
59: pathname = field[i - 1];
60:
61: break;
62: }
63:
64: /* test for INGRES entry found */
65: if (!pathname)
66: syserr(0, "USERINGRES not installed as UNIX user");
67:
68: /* get override pathname */
69: if (argc > 1)
70: pathname = argv[1];
71:
72: /* rewind passwd file */
73: if (fclose(iop))
74: syserr("fclose");
75: if ((iop = (int) fopen("/etc/passwd", "r")) == NULL)
76: syserr("open /etc/passwd 2");
77:
78: /* open output file as needed */
79: if (pathname[0] != '-')
80: {
81: concat(pathname, "/files/users", buf);
82: if ((i = open(buf, 0)) >= 0)
83: syserr(0, "%s already exists", buf);
84: if ((i = creat(buf, 0644)) < 0)
85: syserr("Cannot create %s", buf);
86: close(i);
87: if (freopen(buf, "w", stdout) == NULL)
88: syserr("cannot open %s", buf);
89: }
90:
91: while (fgets(buf, MAXLINE, iop))
92: {
93: i = decode(buf, field);
94: /* print username & code */
95: printf("%s:%s:%s:%s:%s:::%s/.ingres::\n",
96: field[0], /* user name */
97: code,
98: field[2], /* user id */
99: field[3], /* user group */
100: sequal(field[0], USERINGRES) ? "177777" : stat,
101: field[i - 1]); /* working directory */
102: next(code);
103: }
104: fflush(stdout);
105: }
106: /*
107: ** DECODE
108: */
109:
110: decode(buf, field)
111: char *buf;
112: char *field[];
113: {
114: register char *cp, c;
115: register int i;
116:
117: field[0] = buf;
118: for (i = 0, cp = buf; (c = *cp) != '\n' && c != '\0'; cp++)
119: {
120: if (c == ':')
121: {
122: *cp = '\0';
123: i++;
124: field[i] = cp + 1;
125: }
126: }
127:
128: return (i);
129: }
130: /*
131: ** NEXT -- return successor to code.
132: */
133:
134: next(code)
135: char code[2];
136: {
137: register char *c;
138: register char a, b;
139:
140: c = code;
141: a = c[0];
142: b = c[1];
143:
144: if (++b > 'z')
145: {
146: b = '0';
147: }
148: else if (b == '9' + 1)
149: {
150: b = 'a';
151: if (a == 'Z')
152: {
153: write(2, "Too many users\n", 15);
154: exit(-1);
155: }
156: if (++a > 'z')
157: {
158: a = 'A';
159: }
160: }
161:
162: c[0] = a;
163: c[1] = b;
164: }
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