1bd8c8fbbSWilly Tarreau /* SPDX-License-Identifier: LGPL-2.1 OR MIT */ 2bd8c8fbbSWilly Tarreau /* 3bd8c8fbbSWilly Tarreau * Syscall definitions for NOLIBC (those in man(2)) 4bd8c8fbbSWilly Tarreau * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu> 5bd8c8fbbSWilly Tarreau */ 6bd8c8fbbSWilly Tarreau 7bd8c8fbbSWilly Tarreau #ifndef _NOLIBC_SYS_H 8bd8c8fbbSWilly Tarreau #define _NOLIBC_SYS_H 9bd8c8fbbSWilly Tarreau 10*a7604ba1SWilly Tarreau #include <stdarg.h> 11bd8c8fbbSWilly Tarreau #include "std.h" 12bd8c8fbbSWilly Tarreau 13bd8c8fbbSWilly Tarreau /* system includes */ 14bd8c8fbbSWilly Tarreau #include <asm/unistd.h> 15bd8c8fbbSWilly Tarreau #include <asm/signal.h> // for SIGCHLD 16bd8c8fbbSWilly Tarreau #include <asm/ioctls.h> 17bd8c8fbbSWilly Tarreau #include <asm/errno.h> 18bd8c8fbbSWilly Tarreau #include <linux/fs.h> 19bd8c8fbbSWilly Tarreau #include <linux/loop.h> 20bd8c8fbbSWilly Tarreau #include <linux/time.h> 21bd8c8fbbSWilly Tarreau 22bd8c8fbbSWilly Tarreau #include "arch.h" 23bd8c8fbbSWilly Tarreau #include "types.h" 24bd8c8fbbSWilly Tarreau 25bd8c8fbbSWilly Tarreau /* this way it will be removed if unused */ 26bd8c8fbbSWilly Tarreau static int errno; 27bd8c8fbbSWilly Tarreau 28bd8c8fbbSWilly Tarreau #ifndef NOLIBC_IGNORE_ERRNO 29bd8c8fbbSWilly Tarreau #define SET_ERRNO(v) do { errno = (v); } while (0) 30bd8c8fbbSWilly Tarreau #else 31bd8c8fbbSWilly Tarreau #define SET_ERRNO(v) do { } while (0) 32bd8c8fbbSWilly Tarreau #endif 33bd8c8fbbSWilly Tarreau 34bd8c8fbbSWilly Tarreau 35bd8c8fbbSWilly Tarreau /* errno codes all ensure that they will not conflict with a valid pointer 36bd8c8fbbSWilly Tarreau * because they all correspond to the highest addressable memory page. 37bd8c8fbbSWilly Tarreau */ 38bd8c8fbbSWilly Tarreau #define MAX_ERRNO 4095 39bd8c8fbbSWilly Tarreau 40bd8c8fbbSWilly Tarreau 41bd8c8fbbSWilly Tarreau /* Functions in this file only describe syscalls. They're declared static so 42bd8c8fbbSWilly Tarreau * that the compiler usually decides to inline them while still being allowed 43bd8c8fbbSWilly Tarreau * to pass a pointer to one of their instances. Each syscall exists in two 44bd8c8fbbSWilly Tarreau * versions: 45bd8c8fbbSWilly Tarreau * - the "internal" ones, which matches the raw syscall interface at the 46bd8c8fbbSWilly Tarreau * kernel level, which may sometimes slightly differ from the documented 47bd8c8fbbSWilly Tarreau * libc-level ones. For example most of them return either a valid value 48bd8c8fbbSWilly Tarreau * or -errno. All of these are prefixed with "sys_". They may be called 49bd8c8fbbSWilly Tarreau * by non-portable applications if desired. 50bd8c8fbbSWilly Tarreau * 51bd8c8fbbSWilly Tarreau * - the "exported" ones, whose interface must closely match the one 52bd8c8fbbSWilly Tarreau * documented in man(2), that applications are supposed to expect. These 53bd8c8fbbSWilly Tarreau * ones rely on the internal ones, and set errno. 54bd8c8fbbSWilly Tarreau * 55bd8c8fbbSWilly Tarreau * Each syscall will be defined with the two functions, sorted in alphabetical 56bd8c8fbbSWilly Tarreau * order applied to the exported names. 57bd8c8fbbSWilly Tarreau * 58bd8c8fbbSWilly Tarreau * In case of doubt about the relevance of a function here, only those which 59bd8c8fbbSWilly Tarreau * set errno should be defined here. Wrappers like those appearing in man(3) 60bd8c8fbbSWilly Tarreau * should not be placed here. 61bd8c8fbbSWilly Tarreau */ 62bd8c8fbbSWilly Tarreau 63bd8c8fbbSWilly Tarreau 64bd8c8fbbSWilly Tarreau /* 65bd8c8fbbSWilly Tarreau * int brk(void *addr); 66bd8c8fbbSWilly Tarreau * void *sbrk(intptr_t inc) 67bd8c8fbbSWilly Tarreau */ 68bd8c8fbbSWilly Tarreau 69bd8c8fbbSWilly Tarreau static __attribute__((unused)) 70bd8c8fbbSWilly Tarreau void *sys_brk(void *addr) 71bd8c8fbbSWilly Tarreau { 72bd8c8fbbSWilly Tarreau return (void *)my_syscall1(__NR_brk, addr); 73bd8c8fbbSWilly Tarreau } 74bd8c8fbbSWilly Tarreau 75bd8c8fbbSWilly Tarreau static __attribute__((unused)) 76bd8c8fbbSWilly Tarreau int brk(void *addr) 77bd8c8fbbSWilly Tarreau { 78bd8c8fbbSWilly Tarreau void *ret = sys_brk(addr); 79bd8c8fbbSWilly Tarreau 80bd8c8fbbSWilly Tarreau if (!ret) { 81bd8c8fbbSWilly Tarreau SET_ERRNO(ENOMEM); 82bd8c8fbbSWilly Tarreau return -1; 83bd8c8fbbSWilly Tarreau } 84bd8c8fbbSWilly Tarreau return 0; 85bd8c8fbbSWilly Tarreau } 86bd8c8fbbSWilly Tarreau 87bd8c8fbbSWilly Tarreau static __attribute__((unused)) 88bd8c8fbbSWilly Tarreau void *sbrk(intptr_t inc) 89bd8c8fbbSWilly Tarreau { 90bd8c8fbbSWilly Tarreau void *ret; 91bd8c8fbbSWilly Tarreau 92bd8c8fbbSWilly Tarreau /* first call to find current end */ 93bd8c8fbbSWilly Tarreau if ((ret = sys_brk(0)) && (sys_brk(ret + inc) == ret + inc)) 94bd8c8fbbSWilly Tarreau return ret + inc; 95bd8c8fbbSWilly Tarreau 96bd8c8fbbSWilly Tarreau SET_ERRNO(ENOMEM); 97bd8c8fbbSWilly Tarreau return (void *)-1; 98bd8c8fbbSWilly Tarreau } 99bd8c8fbbSWilly Tarreau 100bd8c8fbbSWilly Tarreau 101bd8c8fbbSWilly Tarreau /* 102bd8c8fbbSWilly Tarreau * int chdir(const char *path); 103bd8c8fbbSWilly Tarreau */ 104bd8c8fbbSWilly Tarreau 105bd8c8fbbSWilly Tarreau static __attribute__((unused)) 106bd8c8fbbSWilly Tarreau int sys_chdir(const char *path) 107bd8c8fbbSWilly Tarreau { 108bd8c8fbbSWilly Tarreau return my_syscall1(__NR_chdir, path); 109bd8c8fbbSWilly Tarreau } 110bd8c8fbbSWilly Tarreau 111bd8c8fbbSWilly Tarreau static __attribute__((unused)) 112bd8c8fbbSWilly Tarreau int chdir(const char *path) 113bd8c8fbbSWilly Tarreau { 114bd8c8fbbSWilly Tarreau int ret = sys_chdir(path); 115bd8c8fbbSWilly Tarreau 116bd8c8fbbSWilly Tarreau if (ret < 0) { 117bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 118bd8c8fbbSWilly Tarreau ret = -1; 119bd8c8fbbSWilly Tarreau } 120bd8c8fbbSWilly Tarreau return ret; 121bd8c8fbbSWilly Tarreau } 122bd8c8fbbSWilly Tarreau 123bd8c8fbbSWilly Tarreau 124bd8c8fbbSWilly Tarreau /* 125bd8c8fbbSWilly Tarreau * int chmod(const char *path, mode_t mode); 126bd8c8fbbSWilly Tarreau */ 127bd8c8fbbSWilly Tarreau 128bd8c8fbbSWilly Tarreau static __attribute__((unused)) 129bd8c8fbbSWilly Tarreau int sys_chmod(const char *path, mode_t mode) 130bd8c8fbbSWilly Tarreau { 131bd8c8fbbSWilly Tarreau #ifdef __NR_fchmodat 132bd8c8fbbSWilly Tarreau return my_syscall4(__NR_fchmodat, AT_FDCWD, path, mode, 0); 133bd8c8fbbSWilly Tarreau #elif defined(__NR_chmod) 134bd8c8fbbSWilly Tarreau return my_syscall2(__NR_chmod, path, mode); 135bd8c8fbbSWilly Tarreau #else 136bd8c8fbbSWilly Tarreau #error Neither __NR_fchmodat nor __NR_chmod defined, cannot implement sys_chmod() 137bd8c8fbbSWilly Tarreau #endif 138bd8c8fbbSWilly Tarreau } 139bd8c8fbbSWilly Tarreau 140bd8c8fbbSWilly Tarreau static __attribute__((unused)) 141bd8c8fbbSWilly Tarreau int chmod(const char *path, mode_t mode) 142bd8c8fbbSWilly Tarreau { 143bd8c8fbbSWilly Tarreau int ret = sys_chmod(path, mode); 144bd8c8fbbSWilly Tarreau 145bd8c8fbbSWilly Tarreau if (ret < 0) { 146bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 147bd8c8fbbSWilly Tarreau ret = -1; 148bd8c8fbbSWilly Tarreau } 149bd8c8fbbSWilly Tarreau return ret; 150bd8c8fbbSWilly Tarreau } 151bd8c8fbbSWilly Tarreau 152bd8c8fbbSWilly Tarreau 153bd8c8fbbSWilly Tarreau /* 154bd8c8fbbSWilly Tarreau * int chown(const char *path, uid_t owner, gid_t group); 155bd8c8fbbSWilly Tarreau */ 156bd8c8fbbSWilly Tarreau 157bd8c8fbbSWilly Tarreau static __attribute__((unused)) 158bd8c8fbbSWilly Tarreau int sys_chown(const char *path, uid_t owner, gid_t group) 159bd8c8fbbSWilly Tarreau { 160bd8c8fbbSWilly Tarreau #ifdef __NR_fchownat 161bd8c8fbbSWilly Tarreau return my_syscall5(__NR_fchownat, AT_FDCWD, path, owner, group, 0); 162bd8c8fbbSWilly Tarreau #elif defined(__NR_chown) 163bd8c8fbbSWilly Tarreau return my_syscall3(__NR_chown, path, owner, group); 164bd8c8fbbSWilly Tarreau #else 165bd8c8fbbSWilly Tarreau #error Neither __NR_fchownat nor __NR_chown defined, cannot implement sys_chown() 166bd8c8fbbSWilly Tarreau #endif 167bd8c8fbbSWilly Tarreau } 168bd8c8fbbSWilly Tarreau 169bd8c8fbbSWilly Tarreau static __attribute__((unused)) 170bd8c8fbbSWilly Tarreau int chown(const char *path, uid_t owner, gid_t group) 171bd8c8fbbSWilly Tarreau { 172bd8c8fbbSWilly Tarreau int ret = sys_chown(path, owner, group); 173bd8c8fbbSWilly Tarreau 174bd8c8fbbSWilly Tarreau if (ret < 0) { 175bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 176bd8c8fbbSWilly Tarreau ret = -1; 177bd8c8fbbSWilly Tarreau } 178bd8c8fbbSWilly Tarreau return ret; 179bd8c8fbbSWilly Tarreau } 180bd8c8fbbSWilly Tarreau 181bd8c8fbbSWilly Tarreau 182bd8c8fbbSWilly Tarreau /* 183bd8c8fbbSWilly Tarreau * int chroot(const char *path); 184bd8c8fbbSWilly Tarreau */ 185bd8c8fbbSWilly Tarreau 186bd8c8fbbSWilly Tarreau static __attribute__((unused)) 187bd8c8fbbSWilly Tarreau int sys_chroot(const char *path) 188bd8c8fbbSWilly Tarreau { 189bd8c8fbbSWilly Tarreau return my_syscall1(__NR_chroot, path); 190bd8c8fbbSWilly Tarreau } 191bd8c8fbbSWilly Tarreau 192bd8c8fbbSWilly Tarreau static __attribute__((unused)) 193bd8c8fbbSWilly Tarreau int chroot(const char *path) 194bd8c8fbbSWilly Tarreau { 195bd8c8fbbSWilly Tarreau int ret = sys_chroot(path); 196bd8c8fbbSWilly Tarreau 197bd8c8fbbSWilly Tarreau if (ret < 0) { 198bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 199bd8c8fbbSWilly Tarreau ret = -1; 200bd8c8fbbSWilly Tarreau } 201bd8c8fbbSWilly Tarreau return ret; 202bd8c8fbbSWilly Tarreau } 203bd8c8fbbSWilly Tarreau 204bd8c8fbbSWilly Tarreau 205bd8c8fbbSWilly Tarreau /* 206bd8c8fbbSWilly Tarreau * int close(int fd); 207bd8c8fbbSWilly Tarreau */ 208bd8c8fbbSWilly Tarreau 209bd8c8fbbSWilly Tarreau static __attribute__((unused)) 210bd8c8fbbSWilly Tarreau int sys_close(int fd) 211bd8c8fbbSWilly Tarreau { 212bd8c8fbbSWilly Tarreau return my_syscall1(__NR_close, fd); 213bd8c8fbbSWilly Tarreau } 214bd8c8fbbSWilly Tarreau 215bd8c8fbbSWilly Tarreau static __attribute__((unused)) 216bd8c8fbbSWilly Tarreau int close(int fd) 217bd8c8fbbSWilly Tarreau { 218bd8c8fbbSWilly Tarreau int ret = sys_close(fd); 219bd8c8fbbSWilly Tarreau 220bd8c8fbbSWilly Tarreau if (ret < 0) { 221bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 222bd8c8fbbSWilly Tarreau ret = -1; 223bd8c8fbbSWilly Tarreau } 224bd8c8fbbSWilly Tarreau return ret; 225bd8c8fbbSWilly Tarreau } 226bd8c8fbbSWilly Tarreau 227bd8c8fbbSWilly Tarreau 228bd8c8fbbSWilly Tarreau /* 229bd8c8fbbSWilly Tarreau * int dup(int fd); 230bd8c8fbbSWilly Tarreau */ 231bd8c8fbbSWilly Tarreau 232bd8c8fbbSWilly Tarreau static __attribute__((unused)) 233bd8c8fbbSWilly Tarreau int sys_dup(int fd) 234bd8c8fbbSWilly Tarreau { 235bd8c8fbbSWilly Tarreau return my_syscall1(__NR_dup, fd); 236bd8c8fbbSWilly Tarreau } 237bd8c8fbbSWilly Tarreau 238bd8c8fbbSWilly Tarreau static __attribute__((unused)) 239bd8c8fbbSWilly Tarreau int dup(int fd) 240bd8c8fbbSWilly Tarreau { 241bd8c8fbbSWilly Tarreau int ret = sys_dup(fd); 242bd8c8fbbSWilly Tarreau 243bd8c8fbbSWilly Tarreau if (ret < 0) { 244bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 245bd8c8fbbSWilly Tarreau ret = -1; 246bd8c8fbbSWilly Tarreau } 247bd8c8fbbSWilly Tarreau return ret; 248bd8c8fbbSWilly Tarreau } 249bd8c8fbbSWilly Tarreau 250bd8c8fbbSWilly Tarreau 251bd8c8fbbSWilly Tarreau /* 252bd8c8fbbSWilly Tarreau * int dup2(int old, int new); 253bd8c8fbbSWilly Tarreau */ 254bd8c8fbbSWilly Tarreau 255bd8c8fbbSWilly Tarreau static __attribute__((unused)) 256bd8c8fbbSWilly Tarreau int sys_dup2(int old, int new) 257bd8c8fbbSWilly Tarreau { 258bd8c8fbbSWilly Tarreau #ifdef __NR_dup3 259bd8c8fbbSWilly Tarreau return my_syscall3(__NR_dup3, old, new, 0); 260bd8c8fbbSWilly Tarreau #elif defined(__NR_dup2) 261bd8c8fbbSWilly Tarreau return my_syscall2(__NR_dup2, old, new); 262bd8c8fbbSWilly Tarreau #else 263bd8c8fbbSWilly Tarreau #error Neither __NR_dup3 nor __NR_dup2 defined, cannot implement sys_dup2() 264bd8c8fbbSWilly Tarreau #endif 265bd8c8fbbSWilly Tarreau } 266bd8c8fbbSWilly Tarreau 267bd8c8fbbSWilly Tarreau static __attribute__((unused)) 268bd8c8fbbSWilly Tarreau int dup2(int old, int new) 269bd8c8fbbSWilly Tarreau { 270bd8c8fbbSWilly Tarreau int ret = sys_dup2(old, new); 271bd8c8fbbSWilly Tarreau 272bd8c8fbbSWilly Tarreau if (ret < 0) { 273bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 274bd8c8fbbSWilly Tarreau ret = -1; 275bd8c8fbbSWilly Tarreau } 276bd8c8fbbSWilly Tarreau return ret; 277bd8c8fbbSWilly Tarreau } 278bd8c8fbbSWilly Tarreau 279bd8c8fbbSWilly Tarreau 280bd8c8fbbSWilly Tarreau /* 281bd8c8fbbSWilly Tarreau * int dup3(int old, int new, int flags); 282bd8c8fbbSWilly Tarreau */ 283bd8c8fbbSWilly Tarreau 284bd8c8fbbSWilly Tarreau #ifdef __NR_dup3 285bd8c8fbbSWilly Tarreau static __attribute__((unused)) 286bd8c8fbbSWilly Tarreau int sys_dup3(int old, int new, int flags) 287bd8c8fbbSWilly Tarreau { 288bd8c8fbbSWilly Tarreau return my_syscall3(__NR_dup3, old, new, flags); 289bd8c8fbbSWilly Tarreau } 290bd8c8fbbSWilly Tarreau 291bd8c8fbbSWilly Tarreau static __attribute__((unused)) 292bd8c8fbbSWilly Tarreau int dup3(int old, int new, int flags) 293bd8c8fbbSWilly Tarreau { 294bd8c8fbbSWilly Tarreau int ret = sys_dup3(old, new, flags); 295bd8c8fbbSWilly Tarreau 296bd8c8fbbSWilly Tarreau if (ret < 0) { 297bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 298bd8c8fbbSWilly Tarreau ret = -1; 299bd8c8fbbSWilly Tarreau } 300bd8c8fbbSWilly Tarreau return ret; 301bd8c8fbbSWilly Tarreau } 302bd8c8fbbSWilly Tarreau #endif 303bd8c8fbbSWilly Tarreau 304bd8c8fbbSWilly Tarreau 305bd8c8fbbSWilly Tarreau /* 306bd8c8fbbSWilly Tarreau * int execve(const char *filename, char *const argv[], char *const envp[]); 307bd8c8fbbSWilly Tarreau */ 308bd8c8fbbSWilly Tarreau 309bd8c8fbbSWilly Tarreau static __attribute__((unused)) 310bd8c8fbbSWilly Tarreau int sys_execve(const char *filename, char *const argv[], char *const envp[]) 311bd8c8fbbSWilly Tarreau { 312bd8c8fbbSWilly Tarreau return my_syscall3(__NR_execve, filename, argv, envp); 313bd8c8fbbSWilly Tarreau } 314bd8c8fbbSWilly Tarreau 315bd8c8fbbSWilly Tarreau static __attribute__((unused)) 316bd8c8fbbSWilly Tarreau int execve(const char *filename, char *const argv[], char *const envp[]) 317bd8c8fbbSWilly Tarreau { 318bd8c8fbbSWilly Tarreau int ret = sys_execve(filename, argv, envp); 319bd8c8fbbSWilly Tarreau 320bd8c8fbbSWilly Tarreau if (ret < 0) { 321bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 322bd8c8fbbSWilly Tarreau ret = -1; 323bd8c8fbbSWilly Tarreau } 324bd8c8fbbSWilly Tarreau return ret; 325bd8c8fbbSWilly Tarreau } 326bd8c8fbbSWilly Tarreau 327bd8c8fbbSWilly Tarreau 328bd8c8fbbSWilly Tarreau /* 329bd8c8fbbSWilly Tarreau * void exit(int status); 330bd8c8fbbSWilly Tarreau */ 331bd8c8fbbSWilly Tarreau 332bd8c8fbbSWilly Tarreau static __attribute__((noreturn,unused)) 333bd8c8fbbSWilly Tarreau void sys_exit(int status) 334bd8c8fbbSWilly Tarreau { 335bd8c8fbbSWilly Tarreau my_syscall1(__NR_exit, status & 255); 336bd8c8fbbSWilly Tarreau while(1); // shut the "noreturn" warnings. 337bd8c8fbbSWilly Tarreau } 338bd8c8fbbSWilly Tarreau 339bd8c8fbbSWilly Tarreau static __attribute__((noreturn,unused)) 340bd8c8fbbSWilly Tarreau void exit(int status) 341bd8c8fbbSWilly Tarreau { 342bd8c8fbbSWilly Tarreau sys_exit(status); 343bd8c8fbbSWilly Tarreau } 344bd8c8fbbSWilly Tarreau 345bd8c8fbbSWilly Tarreau 346bd8c8fbbSWilly Tarreau /* 347bd8c8fbbSWilly Tarreau * pid_t fork(void); 348bd8c8fbbSWilly Tarreau */ 349bd8c8fbbSWilly Tarreau 350bd8c8fbbSWilly Tarreau static __attribute__((unused)) 351bd8c8fbbSWilly Tarreau pid_t sys_fork(void) 352bd8c8fbbSWilly Tarreau { 353bd8c8fbbSWilly Tarreau #ifdef __NR_clone 354bd8c8fbbSWilly Tarreau /* note: some archs only have clone() and not fork(). Different archs 355bd8c8fbbSWilly Tarreau * have a different API, but most archs have the flags on first arg and 356bd8c8fbbSWilly Tarreau * will not use the rest with no other flag. 357bd8c8fbbSWilly Tarreau */ 358bd8c8fbbSWilly Tarreau return my_syscall5(__NR_clone, SIGCHLD, 0, 0, 0, 0); 359bd8c8fbbSWilly Tarreau #elif defined(__NR_fork) 360bd8c8fbbSWilly Tarreau return my_syscall0(__NR_fork); 361bd8c8fbbSWilly Tarreau #else 362bd8c8fbbSWilly Tarreau #error Neither __NR_clone nor __NR_fork defined, cannot implement sys_fork() 363bd8c8fbbSWilly Tarreau #endif 364bd8c8fbbSWilly Tarreau } 365bd8c8fbbSWilly Tarreau 366bd8c8fbbSWilly Tarreau static __attribute__((unused)) 367bd8c8fbbSWilly Tarreau pid_t fork(void) 368bd8c8fbbSWilly Tarreau { 369bd8c8fbbSWilly Tarreau pid_t ret = sys_fork(); 370bd8c8fbbSWilly Tarreau 371bd8c8fbbSWilly Tarreau if (ret < 0) { 372bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 373bd8c8fbbSWilly Tarreau ret = -1; 374bd8c8fbbSWilly Tarreau } 375bd8c8fbbSWilly Tarreau return ret; 376bd8c8fbbSWilly Tarreau } 377bd8c8fbbSWilly Tarreau 378bd8c8fbbSWilly Tarreau 379bd8c8fbbSWilly Tarreau /* 380bd8c8fbbSWilly Tarreau * int fsync(int fd); 381bd8c8fbbSWilly Tarreau */ 382bd8c8fbbSWilly Tarreau 383bd8c8fbbSWilly Tarreau static __attribute__((unused)) 384bd8c8fbbSWilly Tarreau int sys_fsync(int fd) 385bd8c8fbbSWilly Tarreau { 386bd8c8fbbSWilly Tarreau return my_syscall1(__NR_fsync, fd); 387bd8c8fbbSWilly Tarreau } 388bd8c8fbbSWilly Tarreau 389bd8c8fbbSWilly Tarreau static __attribute__((unused)) 390bd8c8fbbSWilly Tarreau int fsync(int fd) 391bd8c8fbbSWilly Tarreau { 392bd8c8fbbSWilly Tarreau int ret = sys_fsync(fd); 393bd8c8fbbSWilly Tarreau 394bd8c8fbbSWilly Tarreau if (ret < 0) { 395bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 396bd8c8fbbSWilly Tarreau ret = -1; 397bd8c8fbbSWilly Tarreau } 398bd8c8fbbSWilly Tarreau return ret; 399bd8c8fbbSWilly Tarreau } 400bd8c8fbbSWilly Tarreau 401bd8c8fbbSWilly Tarreau 402bd8c8fbbSWilly Tarreau /* 403bd8c8fbbSWilly Tarreau * int getdents64(int fd, struct linux_dirent64 *dirp, int count); 404bd8c8fbbSWilly Tarreau */ 405bd8c8fbbSWilly Tarreau 406bd8c8fbbSWilly Tarreau static __attribute__((unused)) 407bd8c8fbbSWilly Tarreau int sys_getdents64(int fd, struct linux_dirent64 *dirp, int count) 408bd8c8fbbSWilly Tarreau { 409bd8c8fbbSWilly Tarreau return my_syscall3(__NR_getdents64, fd, dirp, count); 410bd8c8fbbSWilly Tarreau } 411bd8c8fbbSWilly Tarreau 412bd8c8fbbSWilly Tarreau static __attribute__((unused)) 413bd8c8fbbSWilly Tarreau int getdents64(int fd, struct linux_dirent64 *dirp, int count) 414bd8c8fbbSWilly Tarreau { 415bd8c8fbbSWilly Tarreau int ret = sys_getdents64(fd, dirp, count); 416bd8c8fbbSWilly Tarreau 417bd8c8fbbSWilly Tarreau if (ret < 0) { 418bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 419bd8c8fbbSWilly Tarreau ret = -1; 420bd8c8fbbSWilly Tarreau } 421bd8c8fbbSWilly Tarreau return ret; 422bd8c8fbbSWilly Tarreau } 423bd8c8fbbSWilly Tarreau 424bd8c8fbbSWilly Tarreau 425bd8c8fbbSWilly Tarreau /* 426bd8c8fbbSWilly Tarreau * pid_t getpgid(pid_t pid); 427bd8c8fbbSWilly Tarreau */ 428bd8c8fbbSWilly Tarreau 429bd8c8fbbSWilly Tarreau static __attribute__((unused)) 430bd8c8fbbSWilly Tarreau pid_t sys_getpgid(pid_t pid) 431bd8c8fbbSWilly Tarreau { 432bd8c8fbbSWilly Tarreau return my_syscall1(__NR_getpgid, pid); 433bd8c8fbbSWilly Tarreau } 434bd8c8fbbSWilly Tarreau 435bd8c8fbbSWilly Tarreau static __attribute__((unused)) 436bd8c8fbbSWilly Tarreau pid_t getpgid(pid_t pid) 437bd8c8fbbSWilly Tarreau { 438bd8c8fbbSWilly Tarreau pid_t ret = sys_getpgid(pid); 439bd8c8fbbSWilly Tarreau 440bd8c8fbbSWilly Tarreau if (ret < 0) { 441bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 442bd8c8fbbSWilly Tarreau ret = -1; 443bd8c8fbbSWilly Tarreau } 444bd8c8fbbSWilly Tarreau return ret; 445bd8c8fbbSWilly Tarreau } 446bd8c8fbbSWilly Tarreau 447bd8c8fbbSWilly Tarreau 448bd8c8fbbSWilly Tarreau /* 449bd8c8fbbSWilly Tarreau * pid_t getpgrp(void); 450bd8c8fbbSWilly Tarreau */ 451bd8c8fbbSWilly Tarreau 452bd8c8fbbSWilly Tarreau static __attribute__((unused)) 453bd8c8fbbSWilly Tarreau pid_t sys_getpgrp(void) 454bd8c8fbbSWilly Tarreau { 455bd8c8fbbSWilly Tarreau return sys_getpgid(0); 456bd8c8fbbSWilly Tarreau } 457bd8c8fbbSWilly Tarreau 458bd8c8fbbSWilly Tarreau static __attribute__((unused)) 459bd8c8fbbSWilly Tarreau pid_t getpgrp(void) 460bd8c8fbbSWilly Tarreau { 461bd8c8fbbSWilly Tarreau pid_t ret = sys_getpgrp(); 462bd8c8fbbSWilly Tarreau 463bd8c8fbbSWilly Tarreau if (ret < 0) { 464bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 465bd8c8fbbSWilly Tarreau ret = -1; 466bd8c8fbbSWilly Tarreau } 467bd8c8fbbSWilly Tarreau return ret; 468bd8c8fbbSWilly Tarreau } 469bd8c8fbbSWilly Tarreau 470bd8c8fbbSWilly Tarreau 471bd8c8fbbSWilly Tarreau /* 472bd8c8fbbSWilly Tarreau * pid_t getpid(void); 473bd8c8fbbSWilly Tarreau */ 474bd8c8fbbSWilly Tarreau 475bd8c8fbbSWilly Tarreau static __attribute__((unused)) 476bd8c8fbbSWilly Tarreau pid_t sys_getpid(void) 477bd8c8fbbSWilly Tarreau { 478bd8c8fbbSWilly Tarreau return my_syscall0(__NR_getpid); 479bd8c8fbbSWilly Tarreau } 480bd8c8fbbSWilly Tarreau 481bd8c8fbbSWilly Tarreau static __attribute__((unused)) 482bd8c8fbbSWilly Tarreau pid_t getpid(void) 483bd8c8fbbSWilly Tarreau { 484bd8c8fbbSWilly Tarreau pid_t ret = sys_getpid(); 485bd8c8fbbSWilly Tarreau 486bd8c8fbbSWilly Tarreau if (ret < 0) { 487bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 488bd8c8fbbSWilly Tarreau ret = -1; 489bd8c8fbbSWilly Tarreau } 490bd8c8fbbSWilly Tarreau return ret; 491bd8c8fbbSWilly Tarreau } 492bd8c8fbbSWilly Tarreau 493bd8c8fbbSWilly Tarreau 494bd8c8fbbSWilly Tarreau /* 495bd8c8fbbSWilly Tarreau * pid_t gettid(void); 496bd8c8fbbSWilly Tarreau */ 497bd8c8fbbSWilly Tarreau 498bd8c8fbbSWilly Tarreau static __attribute__((unused)) 499bd8c8fbbSWilly Tarreau pid_t sys_gettid(void) 500bd8c8fbbSWilly Tarreau { 501bd8c8fbbSWilly Tarreau return my_syscall0(__NR_gettid); 502bd8c8fbbSWilly Tarreau } 503bd8c8fbbSWilly Tarreau 504bd8c8fbbSWilly Tarreau static __attribute__((unused)) 505bd8c8fbbSWilly Tarreau pid_t gettid(void) 506bd8c8fbbSWilly Tarreau { 507bd8c8fbbSWilly Tarreau pid_t ret = sys_gettid(); 508bd8c8fbbSWilly Tarreau 509bd8c8fbbSWilly Tarreau if (ret < 0) { 510bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 511bd8c8fbbSWilly Tarreau ret = -1; 512bd8c8fbbSWilly Tarreau } 513bd8c8fbbSWilly Tarreau return ret; 514bd8c8fbbSWilly Tarreau } 515bd8c8fbbSWilly Tarreau 516bd8c8fbbSWilly Tarreau 517bd8c8fbbSWilly Tarreau /* 518bd8c8fbbSWilly Tarreau * int gettimeofday(struct timeval *tv, struct timezone *tz); 519bd8c8fbbSWilly Tarreau */ 520bd8c8fbbSWilly Tarreau 521bd8c8fbbSWilly Tarreau static __attribute__((unused)) 522bd8c8fbbSWilly Tarreau int sys_gettimeofday(struct timeval *tv, struct timezone *tz) 523bd8c8fbbSWilly Tarreau { 524bd8c8fbbSWilly Tarreau return my_syscall2(__NR_gettimeofday, tv, tz); 525bd8c8fbbSWilly Tarreau } 526bd8c8fbbSWilly Tarreau 527bd8c8fbbSWilly Tarreau static __attribute__((unused)) 528bd8c8fbbSWilly Tarreau int gettimeofday(struct timeval *tv, struct timezone *tz) 529bd8c8fbbSWilly Tarreau { 530bd8c8fbbSWilly Tarreau int ret = sys_gettimeofday(tv, tz); 531bd8c8fbbSWilly Tarreau 532bd8c8fbbSWilly Tarreau if (ret < 0) { 533bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 534bd8c8fbbSWilly Tarreau ret = -1; 535bd8c8fbbSWilly Tarreau } 536bd8c8fbbSWilly Tarreau return ret; 537bd8c8fbbSWilly Tarreau } 538bd8c8fbbSWilly Tarreau 539bd8c8fbbSWilly Tarreau 540bd8c8fbbSWilly Tarreau /* 541bd8c8fbbSWilly Tarreau * int ioctl(int fd, unsigned long req, void *value); 542bd8c8fbbSWilly Tarreau */ 543bd8c8fbbSWilly Tarreau 544bd8c8fbbSWilly Tarreau static __attribute__((unused)) 545bd8c8fbbSWilly Tarreau int sys_ioctl(int fd, unsigned long req, void *value) 546bd8c8fbbSWilly Tarreau { 547bd8c8fbbSWilly Tarreau return my_syscall3(__NR_ioctl, fd, req, value); 548bd8c8fbbSWilly Tarreau } 549bd8c8fbbSWilly Tarreau 550bd8c8fbbSWilly Tarreau static __attribute__((unused)) 551bd8c8fbbSWilly Tarreau int ioctl(int fd, unsigned long req, void *value) 552bd8c8fbbSWilly Tarreau { 553bd8c8fbbSWilly Tarreau int ret = sys_ioctl(fd, req, value); 554bd8c8fbbSWilly Tarreau 555bd8c8fbbSWilly Tarreau if (ret < 0) { 556bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 557bd8c8fbbSWilly Tarreau ret = -1; 558bd8c8fbbSWilly Tarreau } 559bd8c8fbbSWilly Tarreau return ret; 560bd8c8fbbSWilly Tarreau } 561bd8c8fbbSWilly Tarreau 562bd8c8fbbSWilly Tarreau /* 563bd8c8fbbSWilly Tarreau * int kill(pid_t pid, int signal); 564bd8c8fbbSWilly Tarreau */ 565bd8c8fbbSWilly Tarreau 566bd8c8fbbSWilly Tarreau static __attribute__((unused)) 567bd8c8fbbSWilly Tarreau int sys_kill(pid_t pid, int signal) 568bd8c8fbbSWilly Tarreau { 569bd8c8fbbSWilly Tarreau return my_syscall2(__NR_kill, pid, signal); 570bd8c8fbbSWilly Tarreau } 571bd8c8fbbSWilly Tarreau 572bd8c8fbbSWilly Tarreau static __attribute__((unused)) 573bd8c8fbbSWilly Tarreau int kill(pid_t pid, int signal) 574bd8c8fbbSWilly Tarreau { 575bd8c8fbbSWilly Tarreau int ret = sys_kill(pid, signal); 576bd8c8fbbSWilly Tarreau 577bd8c8fbbSWilly Tarreau if (ret < 0) { 578bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 579bd8c8fbbSWilly Tarreau ret = -1; 580bd8c8fbbSWilly Tarreau } 581bd8c8fbbSWilly Tarreau return ret; 582bd8c8fbbSWilly Tarreau } 583bd8c8fbbSWilly Tarreau 584bd8c8fbbSWilly Tarreau 585bd8c8fbbSWilly Tarreau /* 586bd8c8fbbSWilly Tarreau * int link(const char *old, const char *new); 587bd8c8fbbSWilly Tarreau */ 588bd8c8fbbSWilly Tarreau 589bd8c8fbbSWilly Tarreau static __attribute__((unused)) 590bd8c8fbbSWilly Tarreau int sys_link(const char *old, const char *new) 591bd8c8fbbSWilly Tarreau { 592bd8c8fbbSWilly Tarreau #ifdef __NR_linkat 593bd8c8fbbSWilly Tarreau return my_syscall5(__NR_linkat, AT_FDCWD, old, AT_FDCWD, new, 0); 594bd8c8fbbSWilly Tarreau #elif defined(__NR_link) 595bd8c8fbbSWilly Tarreau return my_syscall2(__NR_link, old, new); 596bd8c8fbbSWilly Tarreau #else 597bd8c8fbbSWilly Tarreau #error Neither __NR_linkat nor __NR_link defined, cannot implement sys_link() 598bd8c8fbbSWilly Tarreau #endif 599bd8c8fbbSWilly Tarreau } 600bd8c8fbbSWilly Tarreau 601bd8c8fbbSWilly Tarreau static __attribute__((unused)) 602bd8c8fbbSWilly Tarreau int link(const char *old, const char *new) 603bd8c8fbbSWilly Tarreau { 604bd8c8fbbSWilly Tarreau int ret = sys_link(old, new); 605bd8c8fbbSWilly Tarreau 606bd8c8fbbSWilly Tarreau if (ret < 0) { 607bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 608bd8c8fbbSWilly Tarreau ret = -1; 609bd8c8fbbSWilly Tarreau } 610bd8c8fbbSWilly Tarreau return ret; 611bd8c8fbbSWilly Tarreau } 612bd8c8fbbSWilly Tarreau 613bd8c8fbbSWilly Tarreau 614bd8c8fbbSWilly Tarreau /* 615bd8c8fbbSWilly Tarreau * off_t lseek(int fd, off_t offset, int whence); 616bd8c8fbbSWilly Tarreau */ 617bd8c8fbbSWilly Tarreau 618bd8c8fbbSWilly Tarreau static __attribute__((unused)) 619bd8c8fbbSWilly Tarreau off_t sys_lseek(int fd, off_t offset, int whence) 620bd8c8fbbSWilly Tarreau { 621bd8c8fbbSWilly Tarreau return my_syscall3(__NR_lseek, fd, offset, whence); 622bd8c8fbbSWilly Tarreau } 623bd8c8fbbSWilly Tarreau 624bd8c8fbbSWilly Tarreau static __attribute__((unused)) 625bd8c8fbbSWilly Tarreau off_t lseek(int fd, off_t offset, int whence) 626bd8c8fbbSWilly Tarreau { 627bd8c8fbbSWilly Tarreau off_t ret = sys_lseek(fd, offset, whence); 628bd8c8fbbSWilly Tarreau 629bd8c8fbbSWilly Tarreau if (ret < 0) { 630bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 631bd8c8fbbSWilly Tarreau ret = -1; 632bd8c8fbbSWilly Tarreau } 633bd8c8fbbSWilly Tarreau return ret; 634bd8c8fbbSWilly Tarreau } 635bd8c8fbbSWilly Tarreau 636bd8c8fbbSWilly Tarreau 637bd8c8fbbSWilly Tarreau /* 638bd8c8fbbSWilly Tarreau * int mkdir(const char *path, mode_t mode); 639bd8c8fbbSWilly Tarreau */ 640bd8c8fbbSWilly Tarreau 641bd8c8fbbSWilly Tarreau static __attribute__((unused)) 642bd8c8fbbSWilly Tarreau int sys_mkdir(const char *path, mode_t mode) 643bd8c8fbbSWilly Tarreau { 644bd8c8fbbSWilly Tarreau #ifdef __NR_mkdirat 645bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mkdirat, AT_FDCWD, path, mode); 646bd8c8fbbSWilly Tarreau #elif defined(__NR_mkdir) 647bd8c8fbbSWilly Tarreau return my_syscall2(__NR_mkdir, path, mode); 648bd8c8fbbSWilly Tarreau #else 649bd8c8fbbSWilly Tarreau #error Neither __NR_mkdirat nor __NR_mkdir defined, cannot implement sys_mkdir() 650bd8c8fbbSWilly Tarreau #endif 651bd8c8fbbSWilly Tarreau } 652bd8c8fbbSWilly Tarreau 653bd8c8fbbSWilly Tarreau static __attribute__((unused)) 654bd8c8fbbSWilly Tarreau int mkdir(const char *path, mode_t mode) 655bd8c8fbbSWilly Tarreau { 656bd8c8fbbSWilly Tarreau int ret = sys_mkdir(path, mode); 657bd8c8fbbSWilly Tarreau 658bd8c8fbbSWilly Tarreau if (ret < 0) { 659bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 660bd8c8fbbSWilly Tarreau ret = -1; 661bd8c8fbbSWilly Tarreau } 662bd8c8fbbSWilly Tarreau return ret; 663bd8c8fbbSWilly Tarreau } 664bd8c8fbbSWilly Tarreau 665bd8c8fbbSWilly Tarreau 666bd8c8fbbSWilly Tarreau /* 667bd8c8fbbSWilly Tarreau * int mknod(const char *path, mode_t mode, dev_t dev); 668bd8c8fbbSWilly Tarreau */ 669bd8c8fbbSWilly Tarreau 670bd8c8fbbSWilly Tarreau static __attribute__((unused)) 671bd8c8fbbSWilly Tarreau long sys_mknod(const char *path, mode_t mode, dev_t dev) 672bd8c8fbbSWilly Tarreau { 673bd8c8fbbSWilly Tarreau #ifdef __NR_mknodat 674bd8c8fbbSWilly Tarreau return my_syscall4(__NR_mknodat, AT_FDCWD, path, mode, dev); 675bd8c8fbbSWilly Tarreau #elif defined(__NR_mknod) 676bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mknod, path, mode, dev); 677bd8c8fbbSWilly Tarreau #else 678bd8c8fbbSWilly Tarreau #error Neither __NR_mknodat nor __NR_mknod defined, cannot implement sys_mknod() 679bd8c8fbbSWilly Tarreau #endif 680bd8c8fbbSWilly Tarreau } 681bd8c8fbbSWilly Tarreau 682bd8c8fbbSWilly Tarreau static __attribute__((unused)) 683bd8c8fbbSWilly Tarreau int mknod(const char *path, mode_t mode, dev_t dev) 684bd8c8fbbSWilly Tarreau { 685bd8c8fbbSWilly Tarreau int ret = sys_mknod(path, mode, dev); 686bd8c8fbbSWilly Tarreau 687bd8c8fbbSWilly Tarreau if (ret < 0) { 688bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 689bd8c8fbbSWilly Tarreau ret = -1; 690bd8c8fbbSWilly Tarreau } 691bd8c8fbbSWilly Tarreau return ret; 692bd8c8fbbSWilly Tarreau } 693bd8c8fbbSWilly Tarreau 694bd8c8fbbSWilly Tarreau 695bd8c8fbbSWilly Tarreau /* 696bd8c8fbbSWilly Tarreau * int mount(const char *source, const char *target, 697bd8c8fbbSWilly Tarreau * const char *fstype, unsigned long flags, 698bd8c8fbbSWilly Tarreau * const void *data); 699bd8c8fbbSWilly Tarreau */ 700bd8c8fbbSWilly Tarreau static __attribute__((unused)) 701bd8c8fbbSWilly Tarreau int sys_mount(const char *src, const char *tgt, const char *fst, 702bd8c8fbbSWilly Tarreau unsigned long flags, const void *data) 703bd8c8fbbSWilly Tarreau { 704bd8c8fbbSWilly Tarreau return my_syscall5(__NR_mount, src, tgt, fst, flags, data); 705bd8c8fbbSWilly Tarreau } 706bd8c8fbbSWilly Tarreau 707bd8c8fbbSWilly Tarreau static __attribute__((unused)) 708bd8c8fbbSWilly Tarreau int mount(const char *src, const char *tgt, 709bd8c8fbbSWilly Tarreau const char *fst, unsigned long flags, 710bd8c8fbbSWilly Tarreau const void *data) 711bd8c8fbbSWilly Tarreau { 712bd8c8fbbSWilly Tarreau int ret = sys_mount(src, tgt, fst, flags, data); 713bd8c8fbbSWilly Tarreau 714bd8c8fbbSWilly Tarreau if (ret < 0) { 715bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 716bd8c8fbbSWilly Tarreau ret = -1; 717bd8c8fbbSWilly Tarreau } 718bd8c8fbbSWilly Tarreau return ret; 719bd8c8fbbSWilly Tarreau } 720bd8c8fbbSWilly Tarreau 721bd8c8fbbSWilly Tarreau 722bd8c8fbbSWilly Tarreau /* 723*a7604ba1SWilly Tarreau * int open(const char *path, int flags[, mode_t mode]); 724bd8c8fbbSWilly Tarreau */ 725bd8c8fbbSWilly Tarreau 726bd8c8fbbSWilly Tarreau static __attribute__((unused)) 727bd8c8fbbSWilly Tarreau int sys_open(const char *path, int flags, mode_t mode) 728bd8c8fbbSWilly Tarreau { 729bd8c8fbbSWilly Tarreau #ifdef __NR_openat 730bd8c8fbbSWilly Tarreau return my_syscall4(__NR_openat, AT_FDCWD, path, flags, mode); 731bd8c8fbbSWilly Tarreau #elif defined(__NR_open) 732bd8c8fbbSWilly Tarreau return my_syscall3(__NR_open, path, flags, mode); 733bd8c8fbbSWilly Tarreau #else 734bd8c8fbbSWilly Tarreau #error Neither __NR_openat nor __NR_open defined, cannot implement sys_open() 735bd8c8fbbSWilly Tarreau #endif 736bd8c8fbbSWilly Tarreau } 737bd8c8fbbSWilly Tarreau 738bd8c8fbbSWilly Tarreau static __attribute__((unused)) 739*a7604ba1SWilly Tarreau int open(const char *path, int flags, ...) 740bd8c8fbbSWilly Tarreau { 741*a7604ba1SWilly Tarreau mode_t mode = 0; 742*a7604ba1SWilly Tarreau int ret; 743*a7604ba1SWilly Tarreau 744*a7604ba1SWilly Tarreau if (flags & O_CREAT) { 745*a7604ba1SWilly Tarreau va_list args; 746*a7604ba1SWilly Tarreau 747*a7604ba1SWilly Tarreau va_start(args, flags); 748*a7604ba1SWilly Tarreau mode = va_arg(args, mode_t); 749*a7604ba1SWilly Tarreau va_end(args); 750*a7604ba1SWilly Tarreau } 751*a7604ba1SWilly Tarreau 752*a7604ba1SWilly Tarreau ret = sys_open(path, flags, mode); 753bd8c8fbbSWilly Tarreau 754bd8c8fbbSWilly Tarreau if (ret < 0) { 755bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 756bd8c8fbbSWilly Tarreau ret = -1; 757bd8c8fbbSWilly Tarreau } 758bd8c8fbbSWilly Tarreau return ret; 759bd8c8fbbSWilly Tarreau } 760bd8c8fbbSWilly Tarreau 761bd8c8fbbSWilly Tarreau 762bd8c8fbbSWilly Tarreau /* 763bd8c8fbbSWilly Tarreau * int pivot_root(const char *new, const char *old); 764bd8c8fbbSWilly Tarreau */ 765bd8c8fbbSWilly Tarreau 766bd8c8fbbSWilly Tarreau static __attribute__((unused)) 767bd8c8fbbSWilly Tarreau int sys_pivot_root(const char *new, const char *old) 768bd8c8fbbSWilly Tarreau { 769bd8c8fbbSWilly Tarreau return my_syscall2(__NR_pivot_root, new, old); 770bd8c8fbbSWilly Tarreau } 771bd8c8fbbSWilly Tarreau 772bd8c8fbbSWilly Tarreau static __attribute__((unused)) 773bd8c8fbbSWilly Tarreau int pivot_root(const char *new, const char *old) 774bd8c8fbbSWilly Tarreau { 775bd8c8fbbSWilly Tarreau int ret = sys_pivot_root(new, old); 776bd8c8fbbSWilly Tarreau 777bd8c8fbbSWilly Tarreau if (ret < 0) { 778bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 779bd8c8fbbSWilly Tarreau ret = -1; 780bd8c8fbbSWilly Tarreau } 781bd8c8fbbSWilly Tarreau return ret; 782bd8c8fbbSWilly Tarreau } 783bd8c8fbbSWilly Tarreau 784bd8c8fbbSWilly Tarreau 785bd8c8fbbSWilly Tarreau /* 786bd8c8fbbSWilly Tarreau * int poll(struct pollfd *fds, int nfds, int timeout); 787bd8c8fbbSWilly Tarreau */ 788bd8c8fbbSWilly Tarreau 789bd8c8fbbSWilly Tarreau static __attribute__((unused)) 790bd8c8fbbSWilly Tarreau int sys_poll(struct pollfd *fds, int nfds, int timeout) 791bd8c8fbbSWilly Tarreau { 792bd8c8fbbSWilly Tarreau #if defined(__NR_ppoll) 793bd8c8fbbSWilly Tarreau struct timespec t; 794bd8c8fbbSWilly Tarreau 795bd8c8fbbSWilly Tarreau if (timeout >= 0) { 796bd8c8fbbSWilly Tarreau t.tv_sec = timeout / 1000; 797bd8c8fbbSWilly Tarreau t.tv_nsec = (timeout % 1000) * 1000000; 798bd8c8fbbSWilly Tarreau } 799bd8c8fbbSWilly Tarreau return my_syscall4(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL); 800bd8c8fbbSWilly Tarreau #elif defined(__NR_poll) 801bd8c8fbbSWilly Tarreau return my_syscall3(__NR_poll, fds, nfds, timeout); 802bd8c8fbbSWilly Tarreau #else 803bd8c8fbbSWilly Tarreau #error Neither __NR_ppoll nor __NR_poll defined, cannot implement sys_poll() 804bd8c8fbbSWilly Tarreau #endif 805bd8c8fbbSWilly Tarreau } 806bd8c8fbbSWilly Tarreau 807bd8c8fbbSWilly Tarreau static __attribute__((unused)) 808bd8c8fbbSWilly Tarreau int poll(struct pollfd *fds, int nfds, int timeout) 809bd8c8fbbSWilly Tarreau { 810bd8c8fbbSWilly Tarreau int ret = sys_poll(fds, nfds, timeout); 811bd8c8fbbSWilly Tarreau 812bd8c8fbbSWilly Tarreau if (ret < 0) { 813bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 814bd8c8fbbSWilly Tarreau ret = -1; 815bd8c8fbbSWilly Tarreau } 816bd8c8fbbSWilly Tarreau return ret; 817bd8c8fbbSWilly Tarreau } 818bd8c8fbbSWilly Tarreau 819bd8c8fbbSWilly Tarreau 820bd8c8fbbSWilly Tarreau /* 821bd8c8fbbSWilly Tarreau * ssize_t read(int fd, void *buf, size_t count); 822bd8c8fbbSWilly Tarreau */ 823bd8c8fbbSWilly Tarreau 824bd8c8fbbSWilly Tarreau static __attribute__((unused)) 825bd8c8fbbSWilly Tarreau ssize_t sys_read(int fd, void *buf, size_t count) 826bd8c8fbbSWilly Tarreau { 827bd8c8fbbSWilly Tarreau return my_syscall3(__NR_read, fd, buf, count); 828bd8c8fbbSWilly Tarreau } 829bd8c8fbbSWilly Tarreau 830bd8c8fbbSWilly Tarreau static __attribute__((unused)) 831bd8c8fbbSWilly Tarreau ssize_t read(int fd, void *buf, size_t count) 832bd8c8fbbSWilly Tarreau { 833bd8c8fbbSWilly Tarreau ssize_t ret = sys_read(fd, buf, count); 834bd8c8fbbSWilly Tarreau 835bd8c8fbbSWilly Tarreau if (ret < 0) { 836bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 837bd8c8fbbSWilly Tarreau ret = -1; 838bd8c8fbbSWilly Tarreau } 839bd8c8fbbSWilly Tarreau return ret; 840bd8c8fbbSWilly Tarreau } 841bd8c8fbbSWilly Tarreau 842bd8c8fbbSWilly Tarreau 843bd8c8fbbSWilly Tarreau /* 844bd8c8fbbSWilly Tarreau * int reboot(int cmd); 845bd8c8fbbSWilly Tarreau * <cmd> is among LINUX_REBOOT_CMD_* 846bd8c8fbbSWilly Tarreau */ 847bd8c8fbbSWilly Tarreau 848bd8c8fbbSWilly Tarreau static __attribute__((unused)) 849bd8c8fbbSWilly Tarreau ssize_t sys_reboot(int magic1, int magic2, int cmd, void *arg) 850bd8c8fbbSWilly Tarreau { 851bd8c8fbbSWilly Tarreau return my_syscall4(__NR_reboot, magic1, magic2, cmd, arg); 852bd8c8fbbSWilly Tarreau } 853bd8c8fbbSWilly Tarreau 854bd8c8fbbSWilly Tarreau static __attribute__((unused)) 855bd8c8fbbSWilly Tarreau int reboot(int cmd) 856bd8c8fbbSWilly Tarreau { 857bd8c8fbbSWilly Tarreau int ret = sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0); 858bd8c8fbbSWilly Tarreau 859bd8c8fbbSWilly Tarreau if (ret < 0) { 860bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 861bd8c8fbbSWilly Tarreau ret = -1; 862bd8c8fbbSWilly Tarreau } 863bd8c8fbbSWilly Tarreau return ret; 864bd8c8fbbSWilly Tarreau } 865bd8c8fbbSWilly Tarreau 866bd8c8fbbSWilly Tarreau 867bd8c8fbbSWilly Tarreau /* 868bd8c8fbbSWilly Tarreau * int sched_yield(void); 869bd8c8fbbSWilly Tarreau */ 870bd8c8fbbSWilly Tarreau 871bd8c8fbbSWilly Tarreau static __attribute__((unused)) 872bd8c8fbbSWilly Tarreau int sys_sched_yield(void) 873bd8c8fbbSWilly Tarreau { 874bd8c8fbbSWilly Tarreau return my_syscall0(__NR_sched_yield); 875bd8c8fbbSWilly Tarreau } 876bd8c8fbbSWilly Tarreau 877bd8c8fbbSWilly Tarreau static __attribute__((unused)) 878bd8c8fbbSWilly Tarreau int sched_yield(void) 879bd8c8fbbSWilly Tarreau { 880bd8c8fbbSWilly Tarreau int ret = sys_sched_yield(); 881bd8c8fbbSWilly Tarreau 882bd8c8fbbSWilly Tarreau if (ret < 0) { 883bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 884bd8c8fbbSWilly Tarreau ret = -1; 885bd8c8fbbSWilly Tarreau } 886bd8c8fbbSWilly Tarreau return ret; 887bd8c8fbbSWilly Tarreau } 888bd8c8fbbSWilly Tarreau 889bd8c8fbbSWilly Tarreau 890bd8c8fbbSWilly Tarreau /* 891bd8c8fbbSWilly Tarreau * int select(int nfds, fd_set *read_fds, fd_set *write_fds, 892bd8c8fbbSWilly Tarreau * fd_set *except_fds, struct timeval *timeout); 893bd8c8fbbSWilly Tarreau */ 894bd8c8fbbSWilly Tarreau 895bd8c8fbbSWilly Tarreau static __attribute__((unused)) 896bd8c8fbbSWilly Tarreau int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 897bd8c8fbbSWilly Tarreau { 898bd8c8fbbSWilly Tarreau #if defined(__ARCH_WANT_SYS_OLD_SELECT) && !defined(__NR__newselect) 899bd8c8fbbSWilly Tarreau struct sel_arg_struct { 900bd8c8fbbSWilly Tarreau unsigned long n; 901bd8c8fbbSWilly Tarreau fd_set *r, *w, *e; 902bd8c8fbbSWilly Tarreau struct timeval *t; 903bd8c8fbbSWilly Tarreau } arg = { .n = nfds, .r = rfds, .w = wfds, .e = efds, .t = timeout }; 904bd8c8fbbSWilly Tarreau return my_syscall1(__NR_select, &arg); 905bd8c8fbbSWilly Tarreau #elif defined(__ARCH_WANT_SYS_PSELECT6) && defined(__NR_pselect6) 906bd8c8fbbSWilly Tarreau struct timespec t; 907bd8c8fbbSWilly Tarreau 908bd8c8fbbSWilly Tarreau if (timeout) { 909bd8c8fbbSWilly Tarreau t.tv_sec = timeout->tv_sec; 910bd8c8fbbSWilly Tarreau t.tv_nsec = timeout->tv_usec * 1000; 911bd8c8fbbSWilly Tarreau } 912bd8c8fbbSWilly Tarreau return my_syscall6(__NR_pselect6, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL); 913bd8c8fbbSWilly Tarreau #elif defined(__NR__newselect) || defined(__NR_select) 914bd8c8fbbSWilly Tarreau #ifndef __NR__newselect 915bd8c8fbbSWilly Tarreau #define __NR__newselect __NR_select 916bd8c8fbbSWilly Tarreau #endif 917bd8c8fbbSWilly Tarreau return my_syscall5(__NR__newselect, nfds, rfds, wfds, efds, timeout); 918bd8c8fbbSWilly Tarreau #else 919bd8c8fbbSWilly Tarreau #error None of __NR_select, __NR_pselect6, nor __NR__newselect defined, cannot implement sys_select() 920bd8c8fbbSWilly Tarreau #endif 921bd8c8fbbSWilly Tarreau } 922bd8c8fbbSWilly Tarreau 923bd8c8fbbSWilly Tarreau static __attribute__((unused)) 924bd8c8fbbSWilly Tarreau int select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 925bd8c8fbbSWilly Tarreau { 926bd8c8fbbSWilly Tarreau int ret = sys_select(nfds, rfds, wfds, efds, timeout); 927bd8c8fbbSWilly Tarreau 928bd8c8fbbSWilly Tarreau if (ret < 0) { 929bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 930bd8c8fbbSWilly Tarreau ret = -1; 931bd8c8fbbSWilly Tarreau } 932bd8c8fbbSWilly Tarreau return ret; 933bd8c8fbbSWilly Tarreau } 934bd8c8fbbSWilly Tarreau 935bd8c8fbbSWilly Tarreau 936bd8c8fbbSWilly Tarreau /* 937bd8c8fbbSWilly Tarreau * int setpgid(pid_t pid, pid_t pgid); 938bd8c8fbbSWilly Tarreau */ 939bd8c8fbbSWilly Tarreau 940bd8c8fbbSWilly Tarreau static __attribute__((unused)) 941bd8c8fbbSWilly Tarreau int sys_setpgid(pid_t pid, pid_t pgid) 942bd8c8fbbSWilly Tarreau { 943bd8c8fbbSWilly Tarreau return my_syscall2(__NR_setpgid, pid, pgid); 944bd8c8fbbSWilly Tarreau } 945bd8c8fbbSWilly Tarreau 946bd8c8fbbSWilly Tarreau static __attribute__((unused)) 947bd8c8fbbSWilly Tarreau int setpgid(pid_t pid, pid_t pgid) 948bd8c8fbbSWilly Tarreau { 949bd8c8fbbSWilly Tarreau int ret = sys_setpgid(pid, pgid); 950bd8c8fbbSWilly Tarreau 951bd8c8fbbSWilly Tarreau if (ret < 0) { 952bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 953bd8c8fbbSWilly Tarreau ret = -1; 954bd8c8fbbSWilly Tarreau } 955bd8c8fbbSWilly Tarreau return ret; 956bd8c8fbbSWilly Tarreau } 957bd8c8fbbSWilly Tarreau 958bd8c8fbbSWilly Tarreau 959bd8c8fbbSWilly Tarreau /* 960bd8c8fbbSWilly Tarreau * pid_t setsid(void); 961bd8c8fbbSWilly Tarreau */ 962bd8c8fbbSWilly Tarreau 963bd8c8fbbSWilly Tarreau static __attribute__((unused)) 964bd8c8fbbSWilly Tarreau pid_t sys_setsid(void) 965bd8c8fbbSWilly Tarreau { 966bd8c8fbbSWilly Tarreau return my_syscall0(__NR_setsid); 967bd8c8fbbSWilly Tarreau } 968bd8c8fbbSWilly Tarreau 969bd8c8fbbSWilly Tarreau static __attribute__((unused)) 970bd8c8fbbSWilly Tarreau pid_t setsid(void) 971bd8c8fbbSWilly Tarreau { 972bd8c8fbbSWilly Tarreau pid_t ret = sys_setsid(); 973bd8c8fbbSWilly Tarreau 974bd8c8fbbSWilly Tarreau if (ret < 0) { 975bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 976bd8c8fbbSWilly Tarreau ret = -1; 977bd8c8fbbSWilly Tarreau } 978bd8c8fbbSWilly Tarreau return ret; 979bd8c8fbbSWilly Tarreau } 980bd8c8fbbSWilly Tarreau 981bd8c8fbbSWilly Tarreau 982bd8c8fbbSWilly Tarreau /* 983bd8c8fbbSWilly Tarreau * int stat(const char *path, struct stat *buf); 984bd8c8fbbSWilly Tarreau * Warning: the struct stat's layout is arch-dependent. 985bd8c8fbbSWilly Tarreau */ 986bd8c8fbbSWilly Tarreau 987bd8c8fbbSWilly Tarreau static __attribute__((unused)) 988bd8c8fbbSWilly Tarreau int sys_stat(const char *path, struct stat *buf) 989bd8c8fbbSWilly Tarreau { 990bd8c8fbbSWilly Tarreau struct sys_stat_struct stat; 991bd8c8fbbSWilly Tarreau long ret; 992bd8c8fbbSWilly Tarreau 993bd8c8fbbSWilly Tarreau #ifdef __NR_newfstatat 994bd8c8fbbSWilly Tarreau /* only solution for arm64 */ 995bd8c8fbbSWilly Tarreau ret = my_syscall4(__NR_newfstatat, AT_FDCWD, path, &stat, 0); 996bd8c8fbbSWilly Tarreau #elif defined(__NR_stat) 997bd8c8fbbSWilly Tarreau ret = my_syscall2(__NR_stat, path, &stat); 998bd8c8fbbSWilly Tarreau #else 999bd8c8fbbSWilly Tarreau #error Neither __NR_newfstatat nor __NR_stat defined, cannot implement sys_stat() 1000bd8c8fbbSWilly Tarreau #endif 1001bd8c8fbbSWilly Tarreau buf->st_dev = stat.st_dev; 1002bd8c8fbbSWilly Tarreau buf->st_ino = stat.st_ino; 1003bd8c8fbbSWilly Tarreau buf->st_mode = stat.st_mode; 1004bd8c8fbbSWilly Tarreau buf->st_nlink = stat.st_nlink; 1005bd8c8fbbSWilly Tarreau buf->st_uid = stat.st_uid; 1006bd8c8fbbSWilly Tarreau buf->st_gid = stat.st_gid; 1007bd8c8fbbSWilly Tarreau buf->st_rdev = stat.st_rdev; 1008bd8c8fbbSWilly Tarreau buf->st_size = stat.st_size; 1009bd8c8fbbSWilly Tarreau buf->st_blksize = stat.st_blksize; 1010bd8c8fbbSWilly Tarreau buf->st_blocks = stat.st_blocks; 1011bd8c8fbbSWilly Tarreau buf->st_atime = stat.st_atime; 1012bd8c8fbbSWilly Tarreau buf->st_mtime = stat.st_mtime; 1013bd8c8fbbSWilly Tarreau buf->st_ctime = stat.st_ctime; 1014bd8c8fbbSWilly Tarreau return ret; 1015bd8c8fbbSWilly Tarreau } 1016bd8c8fbbSWilly Tarreau 1017bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1018bd8c8fbbSWilly Tarreau int stat(const char *path, struct stat *buf) 1019bd8c8fbbSWilly Tarreau { 1020bd8c8fbbSWilly Tarreau int ret = sys_stat(path, buf); 1021bd8c8fbbSWilly Tarreau 1022bd8c8fbbSWilly Tarreau if (ret < 0) { 1023bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1024bd8c8fbbSWilly Tarreau ret = -1; 1025bd8c8fbbSWilly Tarreau } 1026bd8c8fbbSWilly Tarreau return ret; 1027bd8c8fbbSWilly Tarreau } 1028bd8c8fbbSWilly Tarreau 1029bd8c8fbbSWilly Tarreau 1030bd8c8fbbSWilly Tarreau /* 1031bd8c8fbbSWilly Tarreau * int symlink(const char *old, const char *new); 1032bd8c8fbbSWilly Tarreau */ 1033bd8c8fbbSWilly Tarreau 1034bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1035bd8c8fbbSWilly Tarreau int sys_symlink(const char *old, const char *new) 1036bd8c8fbbSWilly Tarreau { 1037bd8c8fbbSWilly Tarreau #ifdef __NR_symlinkat 1038bd8c8fbbSWilly Tarreau return my_syscall3(__NR_symlinkat, old, AT_FDCWD, new); 1039bd8c8fbbSWilly Tarreau #elif defined(__NR_symlink) 1040bd8c8fbbSWilly Tarreau return my_syscall2(__NR_symlink, old, new); 1041bd8c8fbbSWilly Tarreau #else 1042bd8c8fbbSWilly Tarreau #error Neither __NR_symlinkat nor __NR_symlink defined, cannot implement sys_symlink() 1043bd8c8fbbSWilly Tarreau #endif 1044bd8c8fbbSWilly Tarreau } 1045bd8c8fbbSWilly Tarreau 1046bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1047bd8c8fbbSWilly Tarreau int symlink(const char *old, const char *new) 1048bd8c8fbbSWilly Tarreau { 1049bd8c8fbbSWilly Tarreau int ret = sys_symlink(old, new); 1050bd8c8fbbSWilly Tarreau 1051bd8c8fbbSWilly Tarreau if (ret < 0) { 1052bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1053bd8c8fbbSWilly Tarreau ret = -1; 1054bd8c8fbbSWilly Tarreau } 1055bd8c8fbbSWilly Tarreau return ret; 1056bd8c8fbbSWilly Tarreau } 1057bd8c8fbbSWilly Tarreau 1058bd8c8fbbSWilly Tarreau 1059bd8c8fbbSWilly Tarreau /* 1060bd8c8fbbSWilly Tarreau * mode_t umask(mode_t mode); 1061bd8c8fbbSWilly Tarreau */ 1062bd8c8fbbSWilly Tarreau 1063bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1064bd8c8fbbSWilly Tarreau mode_t sys_umask(mode_t mode) 1065bd8c8fbbSWilly Tarreau { 1066bd8c8fbbSWilly Tarreau return my_syscall1(__NR_umask, mode); 1067bd8c8fbbSWilly Tarreau } 1068bd8c8fbbSWilly Tarreau 1069bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1070bd8c8fbbSWilly Tarreau mode_t umask(mode_t mode) 1071bd8c8fbbSWilly Tarreau { 1072bd8c8fbbSWilly Tarreau return sys_umask(mode); 1073bd8c8fbbSWilly Tarreau } 1074bd8c8fbbSWilly Tarreau 1075bd8c8fbbSWilly Tarreau 1076bd8c8fbbSWilly Tarreau /* 1077bd8c8fbbSWilly Tarreau * int umount2(const char *path, int flags); 1078bd8c8fbbSWilly Tarreau */ 1079bd8c8fbbSWilly Tarreau 1080bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1081bd8c8fbbSWilly Tarreau int sys_umount2(const char *path, int flags) 1082bd8c8fbbSWilly Tarreau { 1083bd8c8fbbSWilly Tarreau return my_syscall2(__NR_umount2, path, flags); 1084bd8c8fbbSWilly Tarreau } 1085bd8c8fbbSWilly Tarreau 1086bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1087bd8c8fbbSWilly Tarreau int umount2(const char *path, int flags) 1088bd8c8fbbSWilly Tarreau { 1089bd8c8fbbSWilly Tarreau int ret = sys_umount2(path, flags); 1090bd8c8fbbSWilly Tarreau 1091bd8c8fbbSWilly Tarreau if (ret < 0) { 1092bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1093bd8c8fbbSWilly Tarreau ret = -1; 1094bd8c8fbbSWilly Tarreau } 1095bd8c8fbbSWilly Tarreau return ret; 1096bd8c8fbbSWilly Tarreau } 1097bd8c8fbbSWilly Tarreau 1098bd8c8fbbSWilly Tarreau 1099bd8c8fbbSWilly Tarreau /* 1100bd8c8fbbSWilly Tarreau * int unlink(const char *path); 1101bd8c8fbbSWilly Tarreau */ 1102bd8c8fbbSWilly Tarreau 1103bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1104bd8c8fbbSWilly Tarreau int sys_unlink(const char *path) 1105bd8c8fbbSWilly Tarreau { 1106bd8c8fbbSWilly Tarreau #ifdef __NR_unlinkat 1107bd8c8fbbSWilly Tarreau return my_syscall3(__NR_unlinkat, AT_FDCWD, path, 0); 1108bd8c8fbbSWilly Tarreau #elif defined(__NR_unlink) 1109bd8c8fbbSWilly Tarreau return my_syscall1(__NR_unlink, path); 1110bd8c8fbbSWilly Tarreau #else 1111bd8c8fbbSWilly Tarreau #error Neither __NR_unlinkat nor __NR_unlink defined, cannot implement sys_unlink() 1112bd8c8fbbSWilly Tarreau #endif 1113bd8c8fbbSWilly Tarreau } 1114bd8c8fbbSWilly Tarreau 1115bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1116bd8c8fbbSWilly Tarreau int unlink(const char *path) 1117bd8c8fbbSWilly Tarreau { 1118bd8c8fbbSWilly Tarreau int ret = sys_unlink(path); 1119bd8c8fbbSWilly Tarreau 1120bd8c8fbbSWilly Tarreau if (ret < 0) { 1121bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1122bd8c8fbbSWilly Tarreau ret = -1; 1123bd8c8fbbSWilly Tarreau } 1124bd8c8fbbSWilly Tarreau return ret; 1125bd8c8fbbSWilly Tarreau } 1126bd8c8fbbSWilly Tarreau 1127bd8c8fbbSWilly Tarreau 1128bd8c8fbbSWilly Tarreau /* 1129bd8c8fbbSWilly Tarreau * pid_t wait(int *status); 1130bd8c8fbbSWilly Tarreau * pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage); 1131bd8c8fbbSWilly Tarreau * pid_t waitpid(pid_t pid, int *status, int options); 1132bd8c8fbbSWilly Tarreau */ 1133bd8c8fbbSWilly Tarreau 1134bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1135bd8c8fbbSWilly Tarreau pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1136bd8c8fbbSWilly Tarreau { 1137bd8c8fbbSWilly Tarreau return my_syscall4(__NR_wait4, pid, status, options, rusage); 1138bd8c8fbbSWilly Tarreau } 1139bd8c8fbbSWilly Tarreau 1140bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1141bd8c8fbbSWilly Tarreau pid_t wait(int *status) 1142bd8c8fbbSWilly Tarreau { 1143bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(-1, status, 0, NULL); 1144bd8c8fbbSWilly Tarreau 1145bd8c8fbbSWilly Tarreau if (ret < 0) { 1146bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1147bd8c8fbbSWilly Tarreau ret = -1; 1148bd8c8fbbSWilly Tarreau } 1149bd8c8fbbSWilly Tarreau return ret; 1150bd8c8fbbSWilly Tarreau } 1151bd8c8fbbSWilly Tarreau 1152bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1153bd8c8fbbSWilly Tarreau pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1154bd8c8fbbSWilly Tarreau { 1155bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, rusage); 1156bd8c8fbbSWilly Tarreau 1157bd8c8fbbSWilly Tarreau if (ret < 0) { 1158bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1159bd8c8fbbSWilly Tarreau ret = -1; 1160bd8c8fbbSWilly Tarreau } 1161bd8c8fbbSWilly Tarreau return ret; 1162bd8c8fbbSWilly Tarreau } 1163bd8c8fbbSWilly Tarreau 1164bd8c8fbbSWilly Tarreau 1165bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1166bd8c8fbbSWilly Tarreau pid_t waitpid(pid_t pid, int *status, int options) 1167bd8c8fbbSWilly Tarreau { 1168bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, NULL); 1169bd8c8fbbSWilly Tarreau 1170bd8c8fbbSWilly Tarreau if (ret < 0) { 1171bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1172bd8c8fbbSWilly Tarreau ret = -1; 1173bd8c8fbbSWilly Tarreau } 1174bd8c8fbbSWilly Tarreau return ret; 1175bd8c8fbbSWilly Tarreau } 1176bd8c8fbbSWilly Tarreau 1177bd8c8fbbSWilly Tarreau 1178bd8c8fbbSWilly Tarreau /* 1179bd8c8fbbSWilly Tarreau * ssize_t write(int fd, const void *buf, size_t count); 1180bd8c8fbbSWilly Tarreau */ 1181bd8c8fbbSWilly Tarreau 1182bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1183bd8c8fbbSWilly Tarreau ssize_t sys_write(int fd, const void *buf, size_t count) 1184bd8c8fbbSWilly Tarreau { 1185bd8c8fbbSWilly Tarreau return my_syscall3(__NR_write, fd, buf, count); 1186bd8c8fbbSWilly Tarreau } 1187bd8c8fbbSWilly Tarreau 1188bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1189bd8c8fbbSWilly Tarreau ssize_t write(int fd, const void *buf, size_t count) 1190bd8c8fbbSWilly Tarreau { 1191bd8c8fbbSWilly Tarreau ssize_t ret = sys_write(fd, buf, count); 1192bd8c8fbbSWilly Tarreau 1193bd8c8fbbSWilly Tarreau if (ret < 0) { 1194bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1195bd8c8fbbSWilly Tarreau ret = -1; 1196bd8c8fbbSWilly Tarreau } 1197bd8c8fbbSWilly Tarreau return ret; 1198bd8c8fbbSWilly Tarreau } 1199bd8c8fbbSWilly Tarreau 1200bd8c8fbbSWilly Tarreau 1201bd8c8fbbSWilly Tarreau #endif /* _NOLIBC_SYS_H */ 1202