diff options
Diffstat (limited to 'ext/Sys/Hostname/Hostname.xs')
| -rw-r--r-- | ext/Sys/Hostname/Hostname.xs | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/ext/Sys/Hostname/Hostname.xs b/ext/Sys/Hostname/Hostname.xs new file mode 100644 index 0000000000..98c07cf58a --- /dev/null +++ b/ext/Sys/Hostname/Hostname.xs @@ -0,0 +1,77 @@ +#include "EXTERN.h" +#include "perl.h" +#include "XSUB.h" + +#if defined(I_UNISTD) && defined(HAS_GETHOSTNAME) +# include <unistd.h> +#endif + +/* a reasonable default */ +#ifndef MAXHOSTNAMELEN +# define MAXHOSTNAMELEN 256 +#endif + +/* swiped from POSIX.xs */ +#if defined(__VMS) && !defined(__POSIX_SOURCE) +# if ((__VMS_VER >= 70000000) && (__DECC_VER >= 50200000)) || (__CRTL_VER >= 70000000) +# include <utsname.h> +# endif +#endif + +#if defined(HAS_UNAME) && !defined(WIN32) +/* XXX need i_sys_utsname in config.sh */ +# include <sys/utsname.h> +#endif + +MODULE = Sys::Hostname PACKAGE = Sys::Hostname + +void +ghname() + PREINIT: + IV retval = -1; + SV *sv; + PPCODE: + EXTEND(SP, 1); +#ifdef HAS_GETHOSTNAME + { + char tmps[MAXHOSTNAMELEN]; + retval = PerlSock_gethostname(tmps, sizeof(tmps)); + sv = newSVpvn(tmps, strlen(tmps)); + } +#else +# ifdef HAS_PHOSTNAME + { + PerlIO *io; + char tmps[MAXHOSTNAMELEN]; + char *p = tmps; + char c; + io = PerlProc_popen(PHOSTNAME, "r"); + if (!io) + goto check_out; + while (PerlIO_read(io, &c, sizeof(c)) == 1) { + if (isSPACE(c) || p - tmps >= sizeof(tmps)) + break; + *p++ = c; + } + PerlProc_pclose(io); + *p = '\0'; + retval = 0; + sv = newSVpvn(tmps, strlen(tmps)); + } +# else +# ifdef HAS_UNAME + { + struct utsname u; + if (PerlEnv_uname(&u) == -1) + goto check_out; + sv = newSVpvn(u.nodename, strlen(u.nodename)); + retval = 0; + } +# endif +# endif +#endif + check_out: + if (retval == -1) + XSRETURN_UNDEF; + else + PUSHs(sv_2mortal(sv)); |