Cider Isn't Darwin Emulation, Really
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140#include "sysctl.h"#include "../base.h"#include "../errno.h"#include "../simple.h"#include "../../../../../platform-include/sys/errno.h"#include "sysctl_inc.h"#include <stddef.h>#include <limits.h>#include "sysctl_hw.h"#include "sysctl_unspec.h"#include "sysctl_kern.h"#include "sysctl_machdep.h"#include "sysctl_sysctl.h"
extern char *strchr(const char *s, int c);extern int strncmp(const char *s1, const char *s2, __SIZE_TYPE__ n);extern int strcmp(const char *s1, const char *s2);extern int strlcpy(char* dst, const char* src, __SIZE_TYPE__ n);extern __SIZE_TYPE__ strlen(const char* src);extern char* strtok_r(char* str, const char* delim, char** saveptr);
#define _CTL_SYSCTL 100
const struct known_sysctl sysctls_global[] = { { .oid = CTL_UNSPEC, .type = CTLTYPE_NODE, .exttype = "", .name = "unspec", .subctls = sysctls_unspec }, { .oid = CTL_HW, .type = CTLTYPE_NODE, .exttype = "", .name = "hw", .subctls = sysctls_hw }, { .oid = CTL_KERN, .type = CTLTYPE_NODE, .exttype = "", .name = "kern", .subctls = sysctls_kern }, { .oid = CTL_MACHDEP, .type = CTLTYPE_NODE, .exttype = "", .name = "machdep", .subctls = sysctls_machdep }, { .oid = _CTL_SYSCTL, .type = CTLTYPE_NODE, .exttype = "", .name = "sysctl", .subctls = sysctls_sysctl }, { .oid = -1 }, /* terminating entry */};
const struct known_sysctl sysctls_root = { .oid = 0, .type = CTLTYPE_NODE, .exttype = "", .name = "", .subctls = sysctls_global};
void copyout_string(const char* str, char* out, unsigned long* out_len){ unsigned long len; if (out != NULL) len = strlcpy(out, str, *out_len); else len = strlen(str);
if (out_len != NULL) *out_len = len;}
long sys_sysctl(int* name, unsigned int nlen, void* old, unsigned long* oldlen, void* _new, unsigned long newlen){ int i; const struct known_sysctl* current = &sysctls_root;
// __simple_printf("sysctl %d,%d\n", name[0], name[1]);
for (i = 0; i < nlen; i++) { int j; const struct known_sysctl* next = NULL;
for (j = 0; current->subctls[j].oid != -1; j++) { if (current->subctls[j].oid == name[i]) { next = ¤t->subctls[j]; break; } }
if (!next) { // __simple_printf("%d not found in %s\n", name[i], current->name); return -ENOENT; }
current = next; if (next->type != CTLTYPE_NODE) break; }
if (current->type == CTLTYPE_NODE) { // __simple_printf("-->ISDIR: %s\n", current->name); return -EISDIR; }
long rv = current->handler(name, nlen, old, oldlen, _new, newlen); // __simple_printf("sysctl rv %d\n", rv); return rv;}
long sys_sysctlbyname(const char* name, unsigned long namelen, void* old, unsigned long* oldlen, void* _new, unsigned long newlen){ const struct known_sysctl* current = &sysctls_root; char* saveptr; const char* token; char name_copy[128]; // __simple_printf("sysctlbyname: %s\n", name);
// Used by launchd, assumed to succeed if (strcmp(name, "vfs.generic.noremotehang") == 0) return 0; strlcpy(name_copy, name, sizeof(name_copy)); token = strtok_r(name_copy, ".", &saveptr);
while (token != NULL) { const struct known_sysctl* next = NULL; int i;
if (current->type != CTLTYPE_NODE) return -ENOTDIR;
for (i = 0; current->subctls[i].oid != -1; i++) { if (strcmp(current->subctls[i].name, token) == 0) { next = ¤t->subctls[i]; break; } }
if (next == NULL) return -ENOENT;
current = next; token = strtok_r(NULL, ".", &saveptr); }
if (current->type == CTLTYPE_NODE) return -EISDIR;
return current->handler(NULL, 0, old, oldlen, _new, newlen);}