FreeCalypso > hg > freecalypso-tools

annotate uptools/atcmd/smsend_concat.c @ 965:2969032bdfac

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing The only 100% safe way to pass a NULL pointer as a function argument in K&R C is to cast 0 to a pointer type; failing to do so may cause mysterious bugs (invalid stack frames or garbage in argument registers) on 64-bit machines. This issue has already been fixed in most of FC host tools, but I just found some missed spots: passing of NULL UDH to PDU encoding functions in fcup-smsend[mult] in the case of single (not concatenated) SMS.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 01 Sep 2023 07:33:51 +0000
parents 076d533f840d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
370
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This module contains the messy code for automatic generation and
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * increment of concat SMS reference numbers.
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 */
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <sys/types.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <sys/param.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <sys/file.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <sys/time.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <ctype.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <stdio.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <stdlib.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <unistd.h>
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 #include "../../rvinterf/include/exitcodes.h"
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 static int
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 initial_seed()
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 {
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 struct timeval tv;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 u_char refno, *cp, *endp;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 gettimeofday(&tv, 0);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 cp = (u_char *) &tv;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 endp = cp + sizeof(struct timeval);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 refno = 0;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 while (cp < endp)
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 refno ^= *cp++;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 return refno;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 }
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 get_concsms_refno_from_host_fs()
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 {
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 char *homedir, statefile[MAXPATHLEN];
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 int fd, cc;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 char buf[6];
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 u_char refno;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 homedir = getenv("HOME");
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 if (!homedir) {
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 fprintf(stderr,
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 "error: no HOME= defined, needed for concat SMS refno\n");
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 exit(ERROR_UNIX);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 }
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 sprintf(statefile, "%s/.concat_sms_refno", homedir);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 fd = open(statefile, O_RDWR|O_CREAT, 0666);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 if (fd < 0) {
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 perror(statefile);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 exit(ERROR_UNIX);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 }
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 cc = read(fd, buf, 5);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 if (cc == 5 && buf[0] == '0' && buf[1] == 'x' && isxdigit(buf[2]) &&
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 isxdigit(buf[3]) && buf[4] == '\n')
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 refno = strtoul(buf, 0, 16) + 1;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 else
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 refno = initial_seed();
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 sprintf(buf, "0x%02X\n", refno);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 lseek(fd, 0, SEEK_SET);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 write(fd, buf, 5);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 close(fd);
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 return refno;
076d533f840d fcup-smsend: implemented automatic concat SMS refno generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 }