https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| 93659fa2 NC |
1 | #define PERL_NO_GET_CONTEXT |
| 2 | ||
| f91101c9 GS |
3 | #include "EXTERN.h" |
| 4 | #include "perl.h" | |
| 5 | #include "XSUB.h" | |
| 6 | ||
| 7 | #if defined(I_UNISTD) && defined(HAS_GETHOSTNAME) | |
| 8 | # include <unistd.h> | |
| 9 | #endif | |
| 10 | ||
| 11 | /* a reasonable default */ | |
| 12 | #ifndef MAXHOSTNAMELEN | |
| 13 | # define MAXHOSTNAMELEN 256 | |
| 14 | #endif | |
| f91101c9 | 15 | |
| 13b3f787 | 16 | #ifdef I_SYSUTSNAME |
| f91101c9 GS |
17 | # include <sys/utsname.h> |
| 18 | #endif | |
| 19 | ||
| 20 | MODULE = Sys::Hostname PACKAGE = Sys::Hostname | |
| 35ffb081 | 21 | PROTOTYPES: DISABLE |
| f91101c9 GS |
22 | |
| 23 | void | |
| 24 | ghname() | |
| 25 | PREINIT: | |
| 26 | IV retval = -1; | |
| 27 | SV *sv; | |
| 28 | PPCODE: | |
| 29 | EXTEND(SP, 1); | |
| 30 | #ifdef HAS_GETHOSTNAME | |
| 31 | { | |
| 32 | char tmps[MAXHOSTNAMELEN]; | |
| 33 | retval = PerlSock_gethostname(tmps, sizeof(tmps)); | |
| 23933b71 | 34 | sv = newSVpv(tmps, 0); |
| f91101c9 GS |
35 | } |
| 36 | #else | |
| 37 | # ifdef HAS_PHOSTNAME | |
| 38 | { | |
| 39 | PerlIO *io; | |
| 40 | char tmps[MAXHOSTNAMELEN]; | |
| 41 | char *p = tmps; | |
| 42 | char c; | |
| 43 | io = PerlProc_popen(PHOSTNAME, "r"); | |
| 44 | if (!io) | |
| 45 | goto check_out; | |
| 46 | while (PerlIO_read(io, &c, sizeof(c)) == 1) { | |
| 47 | if (isSPACE(c) || p - tmps >= sizeof(tmps)) | |
| 48 | break; | |
| 49 | *p++ = c; | |
| 50 | } | |
| 51 | PerlProc_pclose(io); | |
| f91101c9 | 52 | retval = 0; |
| 23933b71 | 53 | sv = newSVpvn(tmps, p - tmps); |
| f91101c9 GS |
54 | } |
| 55 | # else | |
| 56 | # ifdef HAS_UNAME | |
| 57 | { | |
| 58 | struct utsname u; | |
| 59 | if (PerlEnv_uname(&u) == -1) | |
| 60 | goto check_out; | |
| 23933b71 | 61 | sv = newSVpv(u.nodename, 0); |
| f91101c9 GS |
62 | retval = 0; |
| 63 | } | |
| 64 | # endif | |
| 65 | # endif | |
| 66 | #endif | |
| 8fa7f367 | 67 | #ifndef HAS_GETHOSTNAME |
| f91101c9 | 68 | check_out: |
| 8fa7f367 | 69 | #endif |
| f91101c9 GS |
70 | if (retval == -1) |
| 71 | XSRETURN_UNDEF; | |
| 72 | else | |
| 73 | PUSHs(sv_2mortal(sv)); |