FreeCalypso > hg > sms-coding-utils

annotate enc-text/concat_refno.c @ 32:829e082793d0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
new README
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 Jun 2024 19:42:25 +0000
parents a16b1b9728f6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This module contains the messy code for automatic generation and
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * increment of concat SMS reference numbers.
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 */
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <sys/types.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <sys/param.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <sys/file.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <sys/time.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <ctype.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <stdio.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <stdlib.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <unistd.h>
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 static int
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 initial_seed()
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 {
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 struct timeval tv;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 u_char refno, *cp, *endp;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 gettimeofday(&tv, 0);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 cp = (u_char *) &tv;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 endp = cp + sizeof(struct timeval);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 refno = 0;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 while (cp < endp)
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 refno ^= *cp++;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 return refno;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 }
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 get_concsms_refno_from_host_fs()
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 {
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 char *homedir, statefile[MAXPATHLEN];
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 int fd, cc;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 char buf[6];
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 u_char refno;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 homedir = getenv("HOME");
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if (!homedir) {
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 fprintf(stderr,
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 "error: no HOME= defined, needed for concat SMS refno\n");
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 exit(1);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 }
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 sprintf(statefile, "%s/.concat_sms_refno", homedir);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 fd = open(statefile, O_RDWR|O_CREAT, 0666);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 if (fd < 0) {
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 perror(statefile);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 exit(1);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 }
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 cc = read(fd, buf, 5);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 if (cc == 5 && buf[0] == '0' && buf[1] == 'x' && isxdigit(buf[2]) &&
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 isxdigit(buf[3]) && buf[4] == '\n')
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 refno = strtoul(buf, 0, 16) + 1;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 else
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 refno = initial_seed();
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 sprintf(buf, "0x%02X\n", refno);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 lseek(fd, 0, SEEK_SET);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 write(fd, buf, 5);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 close(fd);
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 return refno;
a16b1b9728f6 enc-text: sms-encode-text program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 }