FreeCalypso > hg > themwi-system-sw
annotate libutil/sockinit.c @ 3:d712d518059e
libutil: add functions for number string parsing/preening
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 26 Jun 2022 09:50:39 -0800 |
parents | dbc0a8677b69 |
children |
rev | line source |
---|---|
1
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 /* |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 * This library module implements a function that helps initialize |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 * sockaddr for bind or connect operations on UNIX domain sockets. |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 * |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 * Back when I programmed under 4.3BSD UNIX, this operation was simple |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 * and straightforward - but under "modern" Unixes, it appears to be |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 * a complex affair, given the messy code (originally copied from |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 * Osmocom) that appears in FreeCalypso host tools for the rvinterf |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 * local socket interface. Hence I am factoring that mess out into |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 * its own library function this time around. |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 */ |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 #include <sys/types.h> |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 #include <sys/socket.h> |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 #include <sys/un.h> |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 #include <string.h> |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 #include <strings.h> |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 void |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 fill_sockaddr_un(pathname, sunp, lenp) |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 char *pathname; |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 struct sockaddr_un *sunp; |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 unsigned *lenp; |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 { |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
25 /* local socket binding voodoo copied from osmocon */ |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
26 sunp->sun_family = AF_UNIX; |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
27 strncpy(sunp->sun_path, pathname, sizeof(sunp->sun_path)); |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
28 sunp->sun_path[sizeof(sunp->sun_path) - 1] = '\0'; |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
29 /* we use the same magic that X11 uses in Xtranssock.c for |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
30 * calculating the proper length of the sockaddr */ |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
31 #if defined(BSD44SOCKETS) || defined(__UNIXWARE__) |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
32 sunp->sun_len = strlen(sunp->sun_path); |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
33 #endif |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
34 #if defined(BSD44SOCKETS) || defined(SUN_LEN) |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
35 *lenp = SUN_LEN(sunp); |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
36 #else |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
37 *lenp = strlen(sunp->sun_path) + |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
38 offsetof(struct sockaddr_un, sun_path) + 1; |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
39 #endif |
dbc0a8677b69
libutil: import from ThemWi1
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
40 } |