mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-27 14:58:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Apply some touchups

Browse source
This commit is contained in:
Justine Tunney 2021-02-07 06:11:44 -08:00
parent 9f149e1de3
commit 2f3bd90216
139 changed files with 1188 additions and 1154 deletions
Download patch file Download diff file Expand all files Collapse all files

45
libc/calls/gethostname.c
View file

@ -18,20 +18,9 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/utsname.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/macros.h"
#include "libc/nt/enum/computernameformat.h"
#include "libc/nt/errors.h"
#include "libc/nt/runtime.h"
#include "libc/nt/systeminfo.h"
#include "libc/str/str.h"
#include "libc/sysv/errfuns.h"
#define CTL_KERN 1
#define KERN_HOSTNAME 10
/**
* Returns name of host system, e.g.
*
@ -42,38 +31,12 @@ int gethostname(char *name, size_t len) {
if (len < 1) return einval();
if (!name) return efault();
if (!IsWindows()) {
if (IsBsd()) {
char *p;
int cmd[2];
char buf[254];
size_t buflen;
cmd[0] = CTL_KERN;
cmd[1] = KERN_HOSTNAME;
buflen = sizeof(buf);
if (sysctl(cmd, 2, buf, &buflen, NULL, 0) == -1) {
if (errno == ENOMEM) errno = ENAMETOOLONG;
return -1;
}
strncpy(name, buf, len);
name[len - 1] = '\0';
if ((p = strchr(name, '.'))) *p = '\0';
return 0;
if (!IsBsd()) {
return gethostname_linux(name, len);
} else {
struct utsname u;
if (uname(&u) == -1) return -1;
memccpy(name, u.nodename, '\0', len);
name[len - 1] = '\0';
return 0;
return gethostname_bsd(name, len);
}
} else {
uint32_t nSize;
char16_t name16[256];
nSize = ARRAYLEN(name16);
if (GetComputerNameEx(kNtComputerNameDnsHostname, name16, &nSize)) {
tprecode16to8(name, len, name16);
return 0;
} else {
return __winerr();
}
return gethostname_nt(name, len);
}
}