https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| f91101c9 GS |
1 | #include "EXTERN.h" |
| 2 | #include "perl.h" | |
| 3 | #include "XSUB.h" | |
| 4 | ||
| 5 | #if defined(I_UNISTD) && defined(HAS_GETHOSTNAME) | |
| 6 | # include <unistd.h> | |
| 7 | #endif | |
| 8 | ||
| 9 | /* a reasonable default */ | |
| 10 | #ifndef MAXHOSTNAMELEN | |
| 11 | # define MAXHOSTNAMELEN 256 | |
| 12 | #endif | |
| 13 | ||
| 14 | /* swiped from POSIX.xs */ | |
| 15 | #if defined(__VMS) && !defined(__POSIX_SOURCE) | |
| 16 | # if ((__VMS_VER >= 70000000) && (__DECC_VER >= 50200000)) || (__CRTL_VER >= 70000000) | |
| 17 | # include <utsname.h> | |
| 18 | # endif | |
| 19 | #endif | |
| 20 | ||
| 13b3f787 | 21 | #ifdef I_SYSUTSNAME |
| f91101c9 GS |
22 | # include <sys/utsname.h> |
| 23 | #endif | |
| 24 | ||
| 25 | MODULE = Sys::Hostname PACKAGE = Sys::Hostname | |
| 26 | ||
| 27 | void | |
| 28 | ghname() | |
| 29 | PREINIT: | |
| 30 | IV retval = -1; | |
| 31 | SV *sv; | |
| 32 | PPCODE: | |
| 33 | EXTEND(SP, 1); | |
| 34 | #ifdef HAS_GETHOSTNAME | |
| 35 | { | |
| 36 | char tmps[MAXHOSTNAMELEN]; | |
| 37 | retval = PerlSock_gethostname(tmps, sizeof(tmps)); | |
| 38 | sv = newSVpvn(tmps, strlen(tmps)); | |
| 39 | } | |
| 40 | #else | |
| 41 | # ifdef HAS_PHOSTNAME | |
| 42 | { | |
| 43 | PerlIO *io; | |
| 44 | char tmps[MAXHOSTNAMELEN]; | |
| 45 | char *p = tmps; | |
| 46 | char c; | |
| 47 | io = PerlProc_popen(PHOSTNAME, "r"); | |
| 48 | if (!io) | |
| 49 | goto check_out; | |
| 50 | while (PerlIO_read(io, &c, sizeof(c)) == 1) { | |
| 51 | if (isSPACE(c) || p - tmps >= sizeof(tmps)) | |
| 52 | break; | |
| 53 | *p++ = c; | |
| 54 | } | |
| 55 | PerlProc_pclose(io); | |
| 56 | *p = '\0'; | |
| 57 | retval = 0; | |
| 58 | sv = newSVpvn(tmps, strlen(tmps)); | |
| 59 | } | |
| 60 | # else | |
| 61 | # ifdef HAS_UNAME | |
| 62 | { | |
| 63 | struct utsname u; | |
| 64 | if (PerlEnv_uname(&u) == -1) | |
| 65 | goto check_out; | |
| 66 | sv = newSVpvn(u.nodename, strlen(u.nodename)); | |
| 67 | retval = 0; | |
| 68 | } | |
| 69 | # endif | |
| 70 | # endif | |
| 71 | #endif | |
| 8fa7f367 | 72 | #ifndef HAS_GETHOSTNAME |
| f91101c9 | 73 | check_out: |
| 8fa7f367 | 74 | #endif |
| f91101c9 GS |
75 | if (retval == -1) |
| 76 | XSRETURN_UNDEF; | |
| 77 | else | |
| 78 | PUSHs(sv_2mortal(sv)); |