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 10a7604ba1SWilly 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 <linux/fs.h> 18bd8c8fbbSWilly Tarreau #include <linux/loop.h> 19bd8c8fbbSWilly Tarreau #include <linux/time.h> 20bd8c8fbbSWilly Tarreau 21bd8c8fbbSWilly Tarreau #include "arch.h" 2245a794bfSWilly Tarreau #include "errno.h" 23bd8c8fbbSWilly Tarreau #include "types.h" 24bd8c8fbbSWilly Tarreau 25bd8c8fbbSWilly Tarreau 26bd8c8fbbSWilly Tarreau /* Functions in this file only describe syscalls. They're declared static so 27bd8c8fbbSWilly Tarreau * that the compiler usually decides to inline them while still being allowed 28bd8c8fbbSWilly Tarreau * to pass a pointer to one of their instances. Each syscall exists in two 29bd8c8fbbSWilly Tarreau * versions: 30bd8c8fbbSWilly Tarreau * - the "internal" ones, which matches the raw syscall interface at the 31bd8c8fbbSWilly Tarreau * kernel level, which may sometimes slightly differ from the documented 32bd8c8fbbSWilly Tarreau * libc-level ones. For example most of them return either a valid value 33bd8c8fbbSWilly Tarreau * or -errno. All of these are prefixed with "sys_". They may be called 34bd8c8fbbSWilly Tarreau * by non-portable applications if desired. 35bd8c8fbbSWilly Tarreau * 36bd8c8fbbSWilly Tarreau * - the "exported" ones, whose interface must closely match the one 37bd8c8fbbSWilly Tarreau * documented in man(2), that applications are supposed to expect. These 38bd8c8fbbSWilly Tarreau * ones rely on the internal ones, and set errno. 39bd8c8fbbSWilly Tarreau * 40bd8c8fbbSWilly Tarreau * Each syscall will be defined with the two functions, sorted in alphabetical 41bd8c8fbbSWilly Tarreau * order applied to the exported names. 42bd8c8fbbSWilly Tarreau * 43bd8c8fbbSWilly Tarreau * In case of doubt about the relevance of a function here, only those which 44bd8c8fbbSWilly Tarreau * set errno should be defined here. Wrappers like those appearing in man(3) 45bd8c8fbbSWilly Tarreau * should not be placed here. 46bd8c8fbbSWilly Tarreau */ 47bd8c8fbbSWilly Tarreau 48bd8c8fbbSWilly Tarreau 49bd8c8fbbSWilly Tarreau /* 50bd8c8fbbSWilly Tarreau * int brk(void *addr); 51bd8c8fbbSWilly Tarreau * void *sbrk(intptr_t inc) 52bd8c8fbbSWilly Tarreau */ 53bd8c8fbbSWilly Tarreau 54bd8c8fbbSWilly Tarreau static __attribute__((unused)) 55bd8c8fbbSWilly Tarreau void *sys_brk(void *addr) 56bd8c8fbbSWilly Tarreau { 57bd8c8fbbSWilly Tarreau return (void *)my_syscall1(__NR_brk, addr); 58bd8c8fbbSWilly Tarreau } 59bd8c8fbbSWilly Tarreau 60bd8c8fbbSWilly Tarreau static __attribute__((unused)) 61bd8c8fbbSWilly Tarreau int brk(void *addr) 62bd8c8fbbSWilly Tarreau { 63bd8c8fbbSWilly Tarreau void *ret = sys_brk(addr); 64bd8c8fbbSWilly Tarreau 65bd8c8fbbSWilly Tarreau if (!ret) { 66bd8c8fbbSWilly Tarreau SET_ERRNO(ENOMEM); 67bd8c8fbbSWilly Tarreau return -1; 68bd8c8fbbSWilly Tarreau } 69bd8c8fbbSWilly Tarreau return 0; 70bd8c8fbbSWilly Tarreau } 71bd8c8fbbSWilly Tarreau 72bd8c8fbbSWilly Tarreau static __attribute__((unused)) 73bd8c8fbbSWilly Tarreau void *sbrk(intptr_t inc) 74bd8c8fbbSWilly Tarreau { 75bd8c8fbbSWilly Tarreau void *ret; 76bd8c8fbbSWilly Tarreau 77bd8c8fbbSWilly Tarreau /* first call to find current end */ 78bd8c8fbbSWilly Tarreau if ((ret = sys_brk(0)) && (sys_brk(ret + inc) == ret + inc)) 79bd8c8fbbSWilly Tarreau return ret + inc; 80bd8c8fbbSWilly Tarreau 81bd8c8fbbSWilly Tarreau SET_ERRNO(ENOMEM); 82bd8c8fbbSWilly Tarreau return (void *)-1; 83bd8c8fbbSWilly Tarreau } 84bd8c8fbbSWilly Tarreau 85bd8c8fbbSWilly Tarreau 86bd8c8fbbSWilly Tarreau /* 87bd8c8fbbSWilly Tarreau * int chdir(const char *path); 88bd8c8fbbSWilly Tarreau */ 89bd8c8fbbSWilly Tarreau 90bd8c8fbbSWilly Tarreau static __attribute__((unused)) 91bd8c8fbbSWilly Tarreau int sys_chdir(const char *path) 92bd8c8fbbSWilly Tarreau { 93bd8c8fbbSWilly Tarreau return my_syscall1(__NR_chdir, path); 94bd8c8fbbSWilly Tarreau } 95bd8c8fbbSWilly Tarreau 96bd8c8fbbSWilly Tarreau static __attribute__((unused)) 97bd8c8fbbSWilly Tarreau int chdir(const char *path) 98bd8c8fbbSWilly Tarreau { 99bd8c8fbbSWilly Tarreau int ret = sys_chdir(path); 100bd8c8fbbSWilly Tarreau 101bd8c8fbbSWilly Tarreau if (ret < 0) { 102bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 103bd8c8fbbSWilly Tarreau ret = -1; 104bd8c8fbbSWilly Tarreau } 105bd8c8fbbSWilly Tarreau return ret; 106bd8c8fbbSWilly Tarreau } 107bd8c8fbbSWilly Tarreau 108bd8c8fbbSWilly Tarreau 109bd8c8fbbSWilly Tarreau /* 110bd8c8fbbSWilly Tarreau * int chmod(const char *path, mode_t mode); 111bd8c8fbbSWilly Tarreau */ 112bd8c8fbbSWilly Tarreau 113bd8c8fbbSWilly Tarreau static __attribute__((unused)) 114bd8c8fbbSWilly Tarreau int sys_chmod(const char *path, mode_t mode) 115bd8c8fbbSWilly Tarreau { 116bd8c8fbbSWilly Tarreau #ifdef __NR_fchmodat 117bd8c8fbbSWilly Tarreau return my_syscall4(__NR_fchmodat, AT_FDCWD, path, mode, 0); 118bd8c8fbbSWilly Tarreau #elif defined(__NR_chmod) 119bd8c8fbbSWilly Tarreau return my_syscall2(__NR_chmod, path, mode); 120bd8c8fbbSWilly Tarreau #else 121bd8c8fbbSWilly Tarreau #error Neither __NR_fchmodat nor __NR_chmod defined, cannot implement sys_chmod() 122bd8c8fbbSWilly Tarreau #endif 123bd8c8fbbSWilly Tarreau } 124bd8c8fbbSWilly Tarreau 125bd8c8fbbSWilly Tarreau static __attribute__((unused)) 126bd8c8fbbSWilly Tarreau int chmod(const char *path, mode_t mode) 127bd8c8fbbSWilly Tarreau { 128bd8c8fbbSWilly Tarreau int ret = sys_chmod(path, mode); 129bd8c8fbbSWilly Tarreau 130bd8c8fbbSWilly Tarreau if (ret < 0) { 131bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 132bd8c8fbbSWilly Tarreau ret = -1; 133bd8c8fbbSWilly Tarreau } 134bd8c8fbbSWilly Tarreau return ret; 135bd8c8fbbSWilly Tarreau } 136bd8c8fbbSWilly Tarreau 137bd8c8fbbSWilly Tarreau 138bd8c8fbbSWilly Tarreau /* 139bd8c8fbbSWilly Tarreau * int chown(const char *path, uid_t owner, gid_t group); 140bd8c8fbbSWilly Tarreau */ 141bd8c8fbbSWilly Tarreau 142bd8c8fbbSWilly Tarreau static __attribute__((unused)) 143bd8c8fbbSWilly Tarreau int sys_chown(const char *path, uid_t owner, gid_t group) 144bd8c8fbbSWilly Tarreau { 145bd8c8fbbSWilly Tarreau #ifdef __NR_fchownat 146bd8c8fbbSWilly Tarreau return my_syscall5(__NR_fchownat, AT_FDCWD, path, owner, group, 0); 147bd8c8fbbSWilly Tarreau #elif defined(__NR_chown) 148bd8c8fbbSWilly Tarreau return my_syscall3(__NR_chown, path, owner, group); 149bd8c8fbbSWilly Tarreau #else 150bd8c8fbbSWilly Tarreau #error Neither __NR_fchownat nor __NR_chown defined, cannot implement sys_chown() 151bd8c8fbbSWilly Tarreau #endif 152bd8c8fbbSWilly Tarreau } 153bd8c8fbbSWilly Tarreau 154bd8c8fbbSWilly Tarreau static __attribute__((unused)) 155bd8c8fbbSWilly Tarreau int chown(const char *path, uid_t owner, gid_t group) 156bd8c8fbbSWilly Tarreau { 157bd8c8fbbSWilly Tarreau int ret = sys_chown(path, owner, group); 158bd8c8fbbSWilly Tarreau 159bd8c8fbbSWilly Tarreau if (ret < 0) { 160bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 161bd8c8fbbSWilly Tarreau ret = -1; 162bd8c8fbbSWilly Tarreau } 163bd8c8fbbSWilly Tarreau return ret; 164bd8c8fbbSWilly Tarreau } 165bd8c8fbbSWilly Tarreau 166bd8c8fbbSWilly Tarreau 167bd8c8fbbSWilly Tarreau /* 168bd8c8fbbSWilly Tarreau * int chroot(const char *path); 169bd8c8fbbSWilly Tarreau */ 170bd8c8fbbSWilly Tarreau 171bd8c8fbbSWilly Tarreau static __attribute__((unused)) 172bd8c8fbbSWilly Tarreau int sys_chroot(const char *path) 173bd8c8fbbSWilly Tarreau { 174bd8c8fbbSWilly Tarreau return my_syscall1(__NR_chroot, path); 175bd8c8fbbSWilly Tarreau } 176bd8c8fbbSWilly Tarreau 177bd8c8fbbSWilly Tarreau static __attribute__((unused)) 178bd8c8fbbSWilly Tarreau int chroot(const char *path) 179bd8c8fbbSWilly Tarreau { 180bd8c8fbbSWilly Tarreau int ret = sys_chroot(path); 181bd8c8fbbSWilly Tarreau 182bd8c8fbbSWilly Tarreau if (ret < 0) { 183bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 184bd8c8fbbSWilly Tarreau ret = -1; 185bd8c8fbbSWilly Tarreau } 186bd8c8fbbSWilly Tarreau return ret; 187bd8c8fbbSWilly Tarreau } 188bd8c8fbbSWilly Tarreau 189bd8c8fbbSWilly Tarreau 190bd8c8fbbSWilly Tarreau /* 191bd8c8fbbSWilly Tarreau * int close(int fd); 192bd8c8fbbSWilly Tarreau */ 193bd8c8fbbSWilly Tarreau 194bd8c8fbbSWilly Tarreau static __attribute__((unused)) 195bd8c8fbbSWilly Tarreau int sys_close(int fd) 196bd8c8fbbSWilly Tarreau { 197bd8c8fbbSWilly Tarreau return my_syscall1(__NR_close, fd); 198bd8c8fbbSWilly Tarreau } 199bd8c8fbbSWilly Tarreau 200bd8c8fbbSWilly Tarreau static __attribute__((unused)) 201bd8c8fbbSWilly Tarreau int close(int fd) 202bd8c8fbbSWilly Tarreau { 203bd8c8fbbSWilly Tarreau int ret = sys_close(fd); 204bd8c8fbbSWilly Tarreau 205bd8c8fbbSWilly Tarreau if (ret < 0) { 206bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 207bd8c8fbbSWilly Tarreau ret = -1; 208bd8c8fbbSWilly Tarreau } 209bd8c8fbbSWilly Tarreau return ret; 210bd8c8fbbSWilly Tarreau } 211bd8c8fbbSWilly Tarreau 212bd8c8fbbSWilly Tarreau 213bd8c8fbbSWilly Tarreau /* 214bd8c8fbbSWilly Tarreau * int dup(int fd); 215bd8c8fbbSWilly Tarreau */ 216bd8c8fbbSWilly Tarreau 217bd8c8fbbSWilly Tarreau static __attribute__((unused)) 218bd8c8fbbSWilly Tarreau int sys_dup(int fd) 219bd8c8fbbSWilly Tarreau { 220bd8c8fbbSWilly Tarreau return my_syscall1(__NR_dup, fd); 221bd8c8fbbSWilly Tarreau } 222bd8c8fbbSWilly Tarreau 223bd8c8fbbSWilly Tarreau static __attribute__((unused)) 224bd8c8fbbSWilly Tarreau int dup(int fd) 225bd8c8fbbSWilly Tarreau { 226bd8c8fbbSWilly Tarreau int ret = sys_dup(fd); 227bd8c8fbbSWilly Tarreau 228bd8c8fbbSWilly Tarreau if (ret < 0) { 229bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 230bd8c8fbbSWilly Tarreau ret = -1; 231bd8c8fbbSWilly Tarreau } 232bd8c8fbbSWilly Tarreau return ret; 233bd8c8fbbSWilly Tarreau } 234bd8c8fbbSWilly Tarreau 235bd8c8fbbSWilly Tarreau 236bd8c8fbbSWilly Tarreau /* 237bd8c8fbbSWilly Tarreau * int dup2(int old, int new); 238bd8c8fbbSWilly Tarreau */ 239bd8c8fbbSWilly Tarreau 240bd8c8fbbSWilly Tarreau static __attribute__((unused)) 241bd8c8fbbSWilly Tarreau int sys_dup2(int old, int new) 242bd8c8fbbSWilly Tarreau { 243bd8c8fbbSWilly Tarreau #ifdef __NR_dup3 244bd8c8fbbSWilly Tarreau return my_syscall3(__NR_dup3, old, new, 0); 245bd8c8fbbSWilly Tarreau #elif defined(__NR_dup2) 246bd8c8fbbSWilly Tarreau return my_syscall2(__NR_dup2, old, new); 247bd8c8fbbSWilly Tarreau #else 248bd8c8fbbSWilly Tarreau #error Neither __NR_dup3 nor __NR_dup2 defined, cannot implement sys_dup2() 249bd8c8fbbSWilly Tarreau #endif 250bd8c8fbbSWilly Tarreau } 251bd8c8fbbSWilly Tarreau 252bd8c8fbbSWilly Tarreau static __attribute__((unused)) 253bd8c8fbbSWilly Tarreau int dup2(int old, int new) 254bd8c8fbbSWilly Tarreau { 255bd8c8fbbSWilly Tarreau int ret = sys_dup2(old, new); 256bd8c8fbbSWilly Tarreau 257bd8c8fbbSWilly Tarreau if (ret < 0) { 258bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 259bd8c8fbbSWilly Tarreau ret = -1; 260bd8c8fbbSWilly Tarreau } 261bd8c8fbbSWilly Tarreau return ret; 262bd8c8fbbSWilly Tarreau } 263bd8c8fbbSWilly Tarreau 264bd8c8fbbSWilly Tarreau 265bd8c8fbbSWilly Tarreau /* 266bd8c8fbbSWilly Tarreau * int dup3(int old, int new, int flags); 267bd8c8fbbSWilly Tarreau */ 268bd8c8fbbSWilly Tarreau 269bd8c8fbbSWilly Tarreau #ifdef __NR_dup3 270bd8c8fbbSWilly Tarreau static __attribute__((unused)) 271bd8c8fbbSWilly Tarreau int sys_dup3(int old, int new, int flags) 272bd8c8fbbSWilly Tarreau { 273bd8c8fbbSWilly Tarreau return my_syscall3(__NR_dup3, old, new, flags); 274bd8c8fbbSWilly Tarreau } 275bd8c8fbbSWilly Tarreau 276bd8c8fbbSWilly Tarreau static __attribute__((unused)) 277bd8c8fbbSWilly Tarreau int dup3(int old, int new, int flags) 278bd8c8fbbSWilly Tarreau { 279bd8c8fbbSWilly Tarreau int ret = sys_dup3(old, new, flags); 280bd8c8fbbSWilly Tarreau 281bd8c8fbbSWilly Tarreau if (ret < 0) { 282bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 283bd8c8fbbSWilly Tarreau ret = -1; 284bd8c8fbbSWilly Tarreau } 285bd8c8fbbSWilly Tarreau return ret; 286bd8c8fbbSWilly Tarreau } 287bd8c8fbbSWilly Tarreau #endif 288bd8c8fbbSWilly Tarreau 289bd8c8fbbSWilly Tarreau 290bd8c8fbbSWilly Tarreau /* 291bd8c8fbbSWilly Tarreau * int execve(const char *filename, char *const argv[], char *const envp[]); 292bd8c8fbbSWilly Tarreau */ 293bd8c8fbbSWilly Tarreau 294bd8c8fbbSWilly Tarreau static __attribute__((unused)) 295bd8c8fbbSWilly Tarreau int sys_execve(const char *filename, char *const argv[], char *const envp[]) 296bd8c8fbbSWilly Tarreau { 297bd8c8fbbSWilly Tarreau return my_syscall3(__NR_execve, filename, argv, envp); 298bd8c8fbbSWilly Tarreau } 299bd8c8fbbSWilly Tarreau 300bd8c8fbbSWilly Tarreau static __attribute__((unused)) 301bd8c8fbbSWilly Tarreau int execve(const char *filename, char *const argv[], char *const envp[]) 302bd8c8fbbSWilly Tarreau { 303bd8c8fbbSWilly Tarreau int ret = sys_execve(filename, argv, envp); 304bd8c8fbbSWilly Tarreau 305bd8c8fbbSWilly Tarreau if (ret < 0) { 306bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 307bd8c8fbbSWilly Tarreau ret = -1; 308bd8c8fbbSWilly Tarreau } 309bd8c8fbbSWilly Tarreau return ret; 310bd8c8fbbSWilly Tarreau } 311bd8c8fbbSWilly Tarreau 312bd8c8fbbSWilly Tarreau 313bd8c8fbbSWilly Tarreau /* 314bd8c8fbbSWilly Tarreau * void exit(int status); 315bd8c8fbbSWilly Tarreau */ 316bd8c8fbbSWilly Tarreau 317bd8c8fbbSWilly Tarreau static __attribute__((noreturn,unused)) 318bd8c8fbbSWilly Tarreau void sys_exit(int status) 319bd8c8fbbSWilly Tarreau { 320bd8c8fbbSWilly Tarreau my_syscall1(__NR_exit, status & 255); 321bd8c8fbbSWilly Tarreau while(1); // shut the "noreturn" warnings. 322bd8c8fbbSWilly Tarreau } 323bd8c8fbbSWilly Tarreau 324bd8c8fbbSWilly Tarreau static __attribute__((noreturn,unused)) 325bd8c8fbbSWilly Tarreau void exit(int status) 326bd8c8fbbSWilly Tarreau { 327bd8c8fbbSWilly Tarreau sys_exit(status); 328bd8c8fbbSWilly Tarreau } 329bd8c8fbbSWilly Tarreau 330bd8c8fbbSWilly Tarreau 331bd8c8fbbSWilly Tarreau /* 332bd8c8fbbSWilly Tarreau * pid_t fork(void); 333bd8c8fbbSWilly Tarreau */ 334bd8c8fbbSWilly Tarreau 335bd8c8fbbSWilly Tarreau static __attribute__((unused)) 336bd8c8fbbSWilly Tarreau pid_t sys_fork(void) 337bd8c8fbbSWilly Tarreau { 338bd8c8fbbSWilly Tarreau #ifdef __NR_clone 339bd8c8fbbSWilly Tarreau /* note: some archs only have clone() and not fork(). Different archs 340bd8c8fbbSWilly Tarreau * have a different API, but most archs have the flags on first arg and 341bd8c8fbbSWilly Tarreau * will not use the rest with no other flag. 342bd8c8fbbSWilly Tarreau */ 343bd8c8fbbSWilly Tarreau return my_syscall5(__NR_clone, SIGCHLD, 0, 0, 0, 0); 344bd8c8fbbSWilly Tarreau #elif defined(__NR_fork) 345bd8c8fbbSWilly Tarreau return my_syscall0(__NR_fork); 346bd8c8fbbSWilly Tarreau #else 347bd8c8fbbSWilly Tarreau #error Neither __NR_clone nor __NR_fork defined, cannot implement sys_fork() 348bd8c8fbbSWilly Tarreau #endif 349bd8c8fbbSWilly Tarreau } 350bd8c8fbbSWilly Tarreau 351bd8c8fbbSWilly Tarreau static __attribute__((unused)) 352bd8c8fbbSWilly Tarreau pid_t fork(void) 353bd8c8fbbSWilly Tarreau { 354bd8c8fbbSWilly Tarreau pid_t ret = sys_fork(); 355bd8c8fbbSWilly Tarreau 356bd8c8fbbSWilly Tarreau if (ret < 0) { 357bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 358bd8c8fbbSWilly Tarreau ret = -1; 359bd8c8fbbSWilly Tarreau } 360bd8c8fbbSWilly Tarreau return ret; 361bd8c8fbbSWilly Tarreau } 362bd8c8fbbSWilly Tarreau 363bd8c8fbbSWilly Tarreau 364bd8c8fbbSWilly Tarreau /* 365bd8c8fbbSWilly Tarreau * int fsync(int fd); 366bd8c8fbbSWilly Tarreau */ 367bd8c8fbbSWilly Tarreau 368bd8c8fbbSWilly Tarreau static __attribute__((unused)) 369bd8c8fbbSWilly Tarreau int sys_fsync(int fd) 370bd8c8fbbSWilly Tarreau { 371bd8c8fbbSWilly Tarreau return my_syscall1(__NR_fsync, fd); 372bd8c8fbbSWilly Tarreau } 373bd8c8fbbSWilly Tarreau 374bd8c8fbbSWilly Tarreau static __attribute__((unused)) 375bd8c8fbbSWilly Tarreau int fsync(int fd) 376bd8c8fbbSWilly Tarreau { 377bd8c8fbbSWilly Tarreau int ret = sys_fsync(fd); 378bd8c8fbbSWilly Tarreau 379bd8c8fbbSWilly Tarreau if (ret < 0) { 380bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 381bd8c8fbbSWilly Tarreau ret = -1; 382bd8c8fbbSWilly Tarreau } 383bd8c8fbbSWilly Tarreau return ret; 384bd8c8fbbSWilly Tarreau } 385bd8c8fbbSWilly Tarreau 386bd8c8fbbSWilly Tarreau 387bd8c8fbbSWilly Tarreau /* 388bd8c8fbbSWilly Tarreau * int getdents64(int fd, struct linux_dirent64 *dirp, int count); 389bd8c8fbbSWilly Tarreau */ 390bd8c8fbbSWilly Tarreau 391bd8c8fbbSWilly Tarreau static __attribute__((unused)) 392bd8c8fbbSWilly Tarreau int sys_getdents64(int fd, struct linux_dirent64 *dirp, int count) 393bd8c8fbbSWilly Tarreau { 394bd8c8fbbSWilly Tarreau return my_syscall3(__NR_getdents64, fd, dirp, count); 395bd8c8fbbSWilly Tarreau } 396bd8c8fbbSWilly Tarreau 397bd8c8fbbSWilly Tarreau static __attribute__((unused)) 398bd8c8fbbSWilly Tarreau int getdents64(int fd, struct linux_dirent64 *dirp, int count) 399bd8c8fbbSWilly Tarreau { 400bd8c8fbbSWilly Tarreau int ret = sys_getdents64(fd, dirp, count); 401bd8c8fbbSWilly Tarreau 402bd8c8fbbSWilly Tarreau if (ret < 0) { 403bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 404bd8c8fbbSWilly Tarreau ret = -1; 405bd8c8fbbSWilly Tarreau } 406bd8c8fbbSWilly Tarreau return ret; 407bd8c8fbbSWilly Tarreau } 408bd8c8fbbSWilly Tarreau 409bd8c8fbbSWilly Tarreau 410bd8c8fbbSWilly Tarreau /* 411bd8c8fbbSWilly Tarreau * pid_t getpgid(pid_t pid); 412bd8c8fbbSWilly Tarreau */ 413bd8c8fbbSWilly Tarreau 414bd8c8fbbSWilly Tarreau static __attribute__((unused)) 415bd8c8fbbSWilly Tarreau pid_t sys_getpgid(pid_t pid) 416bd8c8fbbSWilly Tarreau { 417bd8c8fbbSWilly Tarreau return my_syscall1(__NR_getpgid, pid); 418bd8c8fbbSWilly Tarreau } 419bd8c8fbbSWilly Tarreau 420bd8c8fbbSWilly Tarreau static __attribute__((unused)) 421bd8c8fbbSWilly Tarreau pid_t getpgid(pid_t pid) 422bd8c8fbbSWilly Tarreau { 423bd8c8fbbSWilly Tarreau pid_t ret = sys_getpgid(pid); 424bd8c8fbbSWilly Tarreau 425bd8c8fbbSWilly Tarreau if (ret < 0) { 426bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 427bd8c8fbbSWilly Tarreau ret = -1; 428bd8c8fbbSWilly Tarreau } 429bd8c8fbbSWilly Tarreau return ret; 430bd8c8fbbSWilly Tarreau } 431bd8c8fbbSWilly Tarreau 432bd8c8fbbSWilly Tarreau 433bd8c8fbbSWilly Tarreau /* 434bd8c8fbbSWilly Tarreau * pid_t getpgrp(void); 435bd8c8fbbSWilly Tarreau */ 436bd8c8fbbSWilly Tarreau 437bd8c8fbbSWilly Tarreau static __attribute__((unused)) 438bd8c8fbbSWilly Tarreau pid_t sys_getpgrp(void) 439bd8c8fbbSWilly Tarreau { 440bd8c8fbbSWilly Tarreau return sys_getpgid(0); 441bd8c8fbbSWilly Tarreau } 442bd8c8fbbSWilly Tarreau 443bd8c8fbbSWilly Tarreau static __attribute__((unused)) 444bd8c8fbbSWilly Tarreau pid_t getpgrp(void) 445bd8c8fbbSWilly Tarreau { 446830acd08SWilly Tarreau return sys_getpgrp(); 447bd8c8fbbSWilly Tarreau } 448bd8c8fbbSWilly Tarreau 449bd8c8fbbSWilly Tarreau 450bd8c8fbbSWilly Tarreau /* 451bd8c8fbbSWilly Tarreau * pid_t getpid(void); 452bd8c8fbbSWilly Tarreau */ 453bd8c8fbbSWilly Tarreau 454bd8c8fbbSWilly Tarreau static __attribute__((unused)) 455bd8c8fbbSWilly Tarreau pid_t sys_getpid(void) 456bd8c8fbbSWilly Tarreau { 457bd8c8fbbSWilly Tarreau return my_syscall0(__NR_getpid); 458bd8c8fbbSWilly Tarreau } 459bd8c8fbbSWilly Tarreau 460bd8c8fbbSWilly Tarreau static __attribute__((unused)) 461bd8c8fbbSWilly Tarreau pid_t getpid(void) 462bd8c8fbbSWilly Tarreau { 463830acd08SWilly Tarreau return sys_getpid(); 464bd8c8fbbSWilly Tarreau } 465bd8c8fbbSWilly Tarreau 466bd8c8fbbSWilly Tarreau 467bd8c8fbbSWilly Tarreau /* 468*54abe359SWilly Tarreau * pid_t getppid(void); 469*54abe359SWilly Tarreau */ 470*54abe359SWilly Tarreau 471*54abe359SWilly Tarreau static __attribute__((unused)) 472*54abe359SWilly Tarreau pid_t sys_getppid(void) 473*54abe359SWilly Tarreau { 474*54abe359SWilly Tarreau return my_syscall0(__NR_getppid); 475*54abe359SWilly Tarreau } 476*54abe359SWilly Tarreau 477*54abe359SWilly Tarreau static __attribute__((unused)) 478*54abe359SWilly Tarreau pid_t getppid(void) 479*54abe359SWilly Tarreau { 480*54abe359SWilly Tarreau return sys_getppid(); 481*54abe359SWilly Tarreau } 482*54abe359SWilly Tarreau 483*54abe359SWilly Tarreau 484*54abe359SWilly Tarreau /* 485bd8c8fbbSWilly Tarreau * pid_t gettid(void); 486bd8c8fbbSWilly Tarreau */ 487bd8c8fbbSWilly Tarreau 488bd8c8fbbSWilly Tarreau static __attribute__((unused)) 489bd8c8fbbSWilly Tarreau pid_t sys_gettid(void) 490bd8c8fbbSWilly Tarreau { 491bd8c8fbbSWilly Tarreau return my_syscall0(__NR_gettid); 492bd8c8fbbSWilly Tarreau } 493bd8c8fbbSWilly Tarreau 494bd8c8fbbSWilly Tarreau static __attribute__((unused)) 495bd8c8fbbSWilly Tarreau pid_t gettid(void) 496bd8c8fbbSWilly Tarreau { 497830acd08SWilly Tarreau return sys_gettid(); 498bd8c8fbbSWilly Tarreau } 499bd8c8fbbSWilly Tarreau 500bd8c8fbbSWilly Tarreau 501bd8c8fbbSWilly Tarreau /* 502bd8c8fbbSWilly Tarreau * int gettimeofday(struct timeval *tv, struct timezone *tz); 503bd8c8fbbSWilly Tarreau */ 504bd8c8fbbSWilly Tarreau 505bd8c8fbbSWilly Tarreau static __attribute__((unused)) 506bd8c8fbbSWilly Tarreau int sys_gettimeofday(struct timeval *tv, struct timezone *tz) 507bd8c8fbbSWilly Tarreau { 508bd8c8fbbSWilly Tarreau return my_syscall2(__NR_gettimeofday, tv, tz); 509bd8c8fbbSWilly Tarreau } 510bd8c8fbbSWilly Tarreau 511bd8c8fbbSWilly Tarreau static __attribute__((unused)) 512bd8c8fbbSWilly Tarreau int gettimeofday(struct timeval *tv, struct timezone *tz) 513bd8c8fbbSWilly Tarreau { 514bd8c8fbbSWilly Tarreau int ret = sys_gettimeofday(tv, tz); 515bd8c8fbbSWilly Tarreau 516bd8c8fbbSWilly Tarreau if (ret < 0) { 517bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 518bd8c8fbbSWilly Tarreau ret = -1; 519bd8c8fbbSWilly Tarreau } 520bd8c8fbbSWilly Tarreau return ret; 521bd8c8fbbSWilly Tarreau } 522bd8c8fbbSWilly Tarreau 523bd8c8fbbSWilly Tarreau 524bd8c8fbbSWilly Tarreau /* 525bd8c8fbbSWilly Tarreau * int ioctl(int fd, unsigned long req, void *value); 526bd8c8fbbSWilly Tarreau */ 527bd8c8fbbSWilly Tarreau 528bd8c8fbbSWilly Tarreau static __attribute__((unused)) 529bd8c8fbbSWilly Tarreau int sys_ioctl(int fd, unsigned long req, void *value) 530bd8c8fbbSWilly Tarreau { 531bd8c8fbbSWilly Tarreau return my_syscall3(__NR_ioctl, fd, req, value); 532bd8c8fbbSWilly Tarreau } 533bd8c8fbbSWilly Tarreau 534bd8c8fbbSWilly Tarreau static __attribute__((unused)) 535bd8c8fbbSWilly Tarreau int ioctl(int fd, unsigned long req, void *value) 536bd8c8fbbSWilly Tarreau { 537bd8c8fbbSWilly Tarreau int ret = sys_ioctl(fd, req, value); 538bd8c8fbbSWilly Tarreau 539bd8c8fbbSWilly Tarreau if (ret < 0) { 540bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 541bd8c8fbbSWilly Tarreau ret = -1; 542bd8c8fbbSWilly Tarreau } 543bd8c8fbbSWilly Tarreau return ret; 544bd8c8fbbSWilly Tarreau } 545bd8c8fbbSWilly Tarreau 546bd8c8fbbSWilly Tarreau /* 547bd8c8fbbSWilly Tarreau * int kill(pid_t pid, int signal); 548bd8c8fbbSWilly Tarreau */ 549bd8c8fbbSWilly Tarreau 550bd8c8fbbSWilly Tarreau static __attribute__((unused)) 551bd8c8fbbSWilly Tarreau int sys_kill(pid_t pid, int signal) 552bd8c8fbbSWilly Tarreau { 553bd8c8fbbSWilly Tarreau return my_syscall2(__NR_kill, pid, signal); 554bd8c8fbbSWilly Tarreau } 555bd8c8fbbSWilly Tarreau 556bd8c8fbbSWilly Tarreau static __attribute__((unused)) 557bd8c8fbbSWilly Tarreau int kill(pid_t pid, int signal) 558bd8c8fbbSWilly Tarreau { 559bd8c8fbbSWilly Tarreau int ret = sys_kill(pid, signal); 560bd8c8fbbSWilly Tarreau 561bd8c8fbbSWilly Tarreau if (ret < 0) { 562bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 563bd8c8fbbSWilly Tarreau ret = -1; 564bd8c8fbbSWilly Tarreau } 565bd8c8fbbSWilly Tarreau return ret; 566bd8c8fbbSWilly Tarreau } 567bd8c8fbbSWilly Tarreau 568bd8c8fbbSWilly Tarreau 569bd8c8fbbSWilly Tarreau /* 570bd8c8fbbSWilly Tarreau * int link(const char *old, const char *new); 571bd8c8fbbSWilly Tarreau */ 572bd8c8fbbSWilly Tarreau 573bd8c8fbbSWilly Tarreau static __attribute__((unused)) 574bd8c8fbbSWilly Tarreau int sys_link(const char *old, const char *new) 575bd8c8fbbSWilly Tarreau { 576bd8c8fbbSWilly Tarreau #ifdef __NR_linkat 577bd8c8fbbSWilly Tarreau return my_syscall5(__NR_linkat, AT_FDCWD, old, AT_FDCWD, new, 0); 578bd8c8fbbSWilly Tarreau #elif defined(__NR_link) 579bd8c8fbbSWilly Tarreau return my_syscall2(__NR_link, old, new); 580bd8c8fbbSWilly Tarreau #else 581bd8c8fbbSWilly Tarreau #error Neither __NR_linkat nor __NR_link defined, cannot implement sys_link() 582bd8c8fbbSWilly Tarreau #endif 583bd8c8fbbSWilly Tarreau } 584bd8c8fbbSWilly Tarreau 585bd8c8fbbSWilly Tarreau static __attribute__((unused)) 586bd8c8fbbSWilly Tarreau int link(const char *old, const char *new) 587bd8c8fbbSWilly Tarreau { 588bd8c8fbbSWilly Tarreau int ret = sys_link(old, new); 589bd8c8fbbSWilly Tarreau 590bd8c8fbbSWilly Tarreau if (ret < 0) { 591bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 592bd8c8fbbSWilly Tarreau ret = -1; 593bd8c8fbbSWilly Tarreau } 594bd8c8fbbSWilly Tarreau return ret; 595bd8c8fbbSWilly Tarreau } 596bd8c8fbbSWilly Tarreau 597bd8c8fbbSWilly Tarreau 598bd8c8fbbSWilly Tarreau /* 599bd8c8fbbSWilly Tarreau * off_t lseek(int fd, off_t offset, int whence); 600bd8c8fbbSWilly Tarreau */ 601bd8c8fbbSWilly Tarreau 602bd8c8fbbSWilly Tarreau static __attribute__((unused)) 603bd8c8fbbSWilly Tarreau off_t sys_lseek(int fd, off_t offset, int whence) 604bd8c8fbbSWilly Tarreau { 605bd8c8fbbSWilly Tarreau return my_syscall3(__NR_lseek, fd, offset, whence); 606bd8c8fbbSWilly Tarreau } 607bd8c8fbbSWilly Tarreau 608bd8c8fbbSWilly Tarreau static __attribute__((unused)) 609bd8c8fbbSWilly Tarreau off_t lseek(int fd, off_t offset, int whence) 610bd8c8fbbSWilly Tarreau { 611bd8c8fbbSWilly Tarreau off_t ret = sys_lseek(fd, offset, whence); 612bd8c8fbbSWilly Tarreau 613bd8c8fbbSWilly Tarreau if (ret < 0) { 614bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 615bd8c8fbbSWilly Tarreau ret = -1; 616bd8c8fbbSWilly Tarreau } 617bd8c8fbbSWilly Tarreau return ret; 618bd8c8fbbSWilly Tarreau } 619bd8c8fbbSWilly Tarreau 620bd8c8fbbSWilly Tarreau 621bd8c8fbbSWilly Tarreau /* 622bd8c8fbbSWilly Tarreau * int mkdir(const char *path, mode_t mode); 623bd8c8fbbSWilly Tarreau */ 624bd8c8fbbSWilly Tarreau 625bd8c8fbbSWilly Tarreau static __attribute__((unused)) 626bd8c8fbbSWilly Tarreau int sys_mkdir(const char *path, mode_t mode) 627bd8c8fbbSWilly Tarreau { 628bd8c8fbbSWilly Tarreau #ifdef __NR_mkdirat 629bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mkdirat, AT_FDCWD, path, mode); 630bd8c8fbbSWilly Tarreau #elif defined(__NR_mkdir) 631bd8c8fbbSWilly Tarreau return my_syscall2(__NR_mkdir, path, mode); 632bd8c8fbbSWilly Tarreau #else 633bd8c8fbbSWilly Tarreau #error Neither __NR_mkdirat nor __NR_mkdir defined, cannot implement sys_mkdir() 634bd8c8fbbSWilly Tarreau #endif 635bd8c8fbbSWilly Tarreau } 636bd8c8fbbSWilly Tarreau 637bd8c8fbbSWilly Tarreau static __attribute__((unused)) 638bd8c8fbbSWilly Tarreau int mkdir(const char *path, mode_t mode) 639bd8c8fbbSWilly Tarreau { 640bd8c8fbbSWilly Tarreau int ret = sys_mkdir(path, mode); 641bd8c8fbbSWilly Tarreau 642bd8c8fbbSWilly Tarreau if (ret < 0) { 643bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 644bd8c8fbbSWilly Tarreau ret = -1; 645bd8c8fbbSWilly Tarreau } 646bd8c8fbbSWilly Tarreau return ret; 647bd8c8fbbSWilly Tarreau } 648bd8c8fbbSWilly Tarreau 649bd8c8fbbSWilly Tarreau 650bd8c8fbbSWilly Tarreau /* 651bd8c8fbbSWilly Tarreau * int mknod(const char *path, mode_t mode, dev_t dev); 652bd8c8fbbSWilly Tarreau */ 653bd8c8fbbSWilly Tarreau 654bd8c8fbbSWilly Tarreau static __attribute__((unused)) 655bd8c8fbbSWilly Tarreau long sys_mknod(const char *path, mode_t mode, dev_t dev) 656bd8c8fbbSWilly Tarreau { 657bd8c8fbbSWilly Tarreau #ifdef __NR_mknodat 658bd8c8fbbSWilly Tarreau return my_syscall4(__NR_mknodat, AT_FDCWD, path, mode, dev); 659bd8c8fbbSWilly Tarreau #elif defined(__NR_mknod) 660bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mknod, path, mode, dev); 661bd8c8fbbSWilly Tarreau #else 662bd8c8fbbSWilly Tarreau #error Neither __NR_mknodat nor __NR_mknod defined, cannot implement sys_mknod() 663bd8c8fbbSWilly Tarreau #endif 664bd8c8fbbSWilly Tarreau } 665bd8c8fbbSWilly Tarreau 666bd8c8fbbSWilly Tarreau static __attribute__((unused)) 667bd8c8fbbSWilly Tarreau int mknod(const char *path, mode_t mode, dev_t dev) 668bd8c8fbbSWilly Tarreau { 669bd8c8fbbSWilly Tarreau int ret = sys_mknod(path, mode, dev); 670bd8c8fbbSWilly Tarreau 671bd8c8fbbSWilly Tarreau if (ret < 0) { 672bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 673bd8c8fbbSWilly Tarreau ret = -1; 674bd8c8fbbSWilly Tarreau } 675bd8c8fbbSWilly Tarreau return ret; 676bd8c8fbbSWilly Tarreau } 677bd8c8fbbSWilly Tarreau 678bd8c8fbbSWilly Tarreau 679bd8c8fbbSWilly Tarreau /* 680bd8c8fbbSWilly Tarreau * int mount(const char *source, const char *target, 681bd8c8fbbSWilly Tarreau * const char *fstype, unsigned long flags, 682bd8c8fbbSWilly Tarreau * const void *data); 683bd8c8fbbSWilly Tarreau */ 684bd8c8fbbSWilly Tarreau static __attribute__((unused)) 685bd8c8fbbSWilly Tarreau int sys_mount(const char *src, const char *tgt, const char *fst, 686bd8c8fbbSWilly Tarreau unsigned long flags, const void *data) 687bd8c8fbbSWilly Tarreau { 688bd8c8fbbSWilly Tarreau return my_syscall5(__NR_mount, src, tgt, fst, flags, data); 689bd8c8fbbSWilly Tarreau } 690bd8c8fbbSWilly Tarreau 691bd8c8fbbSWilly Tarreau static __attribute__((unused)) 692bd8c8fbbSWilly Tarreau int mount(const char *src, const char *tgt, 693bd8c8fbbSWilly Tarreau const char *fst, unsigned long flags, 694bd8c8fbbSWilly Tarreau const void *data) 695bd8c8fbbSWilly Tarreau { 696bd8c8fbbSWilly Tarreau int ret = sys_mount(src, tgt, fst, flags, data); 697bd8c8fbbSWilly Tarreau 698bd8c8fbbSWilly Tarreau if (ret < 0) { 699bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 700bd8c8fbbSWilly Tarreau ret = -1; 701bd8c8fbbSWilly Tarreau } 702bd8c8fbbSWilly Tarreau return ret; 703bd8c8fbbSWilly Tarreau } 704bd8c8fbbSWilly Tarreau 705bd8c8fbbSWilly Tarreau 706bd8c8fbbSWilly Tarreau /* 707a7604ba1SWilly Tarreau * int open(const char *path, int flags[, mode_t mode]); 708bd8c8fbbSWilly Tarreau */ 709bd8c8fbbSWilly Tarreau 710bd8c8fbbSWilly Tarreau static __attribute__((unused)) 711bd8c8fbbSWilly Tarreau int sys_open(const char *path, int flags, mode_t mode) 712bd8c8fbbSWilly Tarreau { 713bd8c8fbbSWilly Tarreau #ifdef __NR_openat 714bd8c8fbbSWilly Tarreau return my_syscall4(__NR_openat, AT_FDCWD, path, flags, mode); 715bd8c8fbbSWilly Tarreau #elif defined(__NR_open) 716bd8c8fbbSWilly Tarreau return my_syscall3(__NR_open, path, flags, mode); 717bd8c8fbbSWilly Tarreau #else 718bd8c8fbbSWilly Tarreau #error Neither __NR_openat nor __NR_open defined, cannot implement sys_open() 719bd8c8fbbSWilly Tarreau #endif 720bd8c8fbbSWilly Tarreau } 721bd8c8fbbSWilly Tarreau 722bd8c8fbbSWilly Tarreau static __attribute__((unused)) 723a7604ba1SWilly Tarreau int open(const char *path, int flags, ...) 724bd8c8fbbSWilly Tarreau { 725a7604ba1SWilly Tarreau mode_t mode = 0; 726a7604ba1SWilly Tarreau int ret; 727a7604ba1SWilly Tarreau 728a7604ba1SWilly Tarreau if (flags & O_CREAT) { 729a7604ba1SWilly Tarreau va_list args; 730a7604ba1SWilly Tarreau 731a7604ba1SWilly Tarreau va_start(args, flags); 732a7604ba1SWilly Tarreau mode = va_arg(args, mode_t); 733a7604ba1SWilly Tarreau va_end(args); 734a7604ba1SWilly Tarreau } 735a7604ba1SWilly Tarreau 736a7604ba1SWilly Tarreau ret = sys_open(path, flags, mode); 737bd8c8fbbSWilly Tarreau 738bd8c8fbbSWilly Tarreau if (ret < 0) { 739bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 740bd8c8fbbSWilly Tarreau ret = -1; 741bd8c8fbbSWilly Tarreau } 742bd8c8fbbSWilly Tarreau return ret; 743bd8c8fbbSWilly Tarreau } 744bd8c8fbbSWilly Tarreau 745bd8c8fbbSWilly Tarreau 746bd8c8fbbSWilly Tarreau /* 747bd8c8fbbSWilly Tarreau * int pivot_root(const char *new, const char *old); 748bd8c8fbbSWilly Tarreau */ 749bd8c8fbbSWilly Tarreau 750bd8c8fbbSWilly Tarreau static __attribute__((unused)) 751bd8c8fbbSWilly Tarreau int sys_pivot_root(const char *new, const char *old) 752bd8c8fbbSWilly Tarreau { 753bd8c8fbbSWilly Tarreau return my_syscall2(__NR_pivot_root, new, old); 754bd8c8fbbSWilly Tarreau } 755bd8c8fbbSWilly Tarreau 756bd8c8fbbSWilly Tarreau static __attribute__((unused)) 757bd8c8fbbSWilly Tarreau int pivot_root(const char *new, const char *old) 758bd8c8fbbSWilly Tarreau { 759bd8c8fbbSWilly Tarreau int ret = sys_pivot_root(new, old); 760bd8c8fbbSWilly Tarreau 761bd8c8fbbSWilly Tarreau if (ret < 0) { 762bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 763bd8c8fbbSWilly Tarreau ret = -1; 764bd8c8fbbSWilly Tarreau } 765bd8c8fbbSWilly Tarreau return ret; 766bd8c8fbbSWilly Tarreau } 767bd8c8fbbSWilly Tarreau 768bd8c8fbbSWilly Tarreau 769bd8c8fbbSWilly Tarreau /* 770bd8c8fbbSWilly Tarreau * int poll(struct pollfd *fds, int nfds, int timeout); 771bd8c8fbbSWilly Tarreau */ 772bd8c8fbbSWilly Tarreau 773bd8c8fbbSWilly Tarreau static __attribute__((unused)) 774bd8c8fbbSWilly Tarreau int sys_poll(struct pollfd *fds, int nfds, int timeout) 775bd8c8fbbSWilly Tarreau { 776bd8c8fbbSWilly Tarreau #if defined(__NR_ppoll) 777bd8c8fbbSWilly Tarreau struct timespec t; 778bd8c8fbbSWilly Tarreau 779bd8c8fbbSWilly Tarreau if (timeout >= 0) { 780bd8c8fbbSWilly Tarreau t.tv_sec = timeout / 1000; 781bd8c8fbbSWilly Tarreau t.tv_nsec = (timeout % 1000) * 1000000; 782bd8c8fbbSWilly Tarreau } 783bd8c8fbbSWilly Tarreau return my_syscall4(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL); 784bd8c8fbbSWilly Tarreau #elif defined(__NR_poll) 785bd8c8fbbSWilly Tarreau return my_syscall3(__NR_poll, fds, nfds, timeout); 786bd8c8fbbSWilly Tarreau #else 787bd8c8fbbSWilly Tarreau #error Neither __NR_ppoll nor __NR_poll defined, cannot implement sys_poll() 788bd8c8fbbSWilly Tarreau #endif 789bd8c8fbbSWilly Tarreau } 790bd8c8fbbSWilly Tarreau 791bd8c8fbbSWilly Tarreau static __attribute__((unused)) 792bd8c8fbbSWilly Tarreau int poll(struct pollfd *fds, int nfds, int timeout) 793bd8c8fbbSWilly Tarreau { 794bd8c8fbbSWilly Tarreau int ret = sys_poll(fds, nfds, timeout); 795bd8c8fbbSWilly Tarreau 796bd8c8fbbSWilly Tarreau if (ret < 0) { 797bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 798bd8c8fbbSWilly Tarreau ret = -1; 799bd8c8fbbSWilly Tarreau } 800bd8c8fbbSWilly Tarreau return ret; 801bd8c8fbbSWilly Tarreau } 802bd8c8fbbSWilly Tarreau 803bd8c8fbbSWilly Tarreau 804bd8c8fbbSWilly Tarreau /* 805bd8c8fbbSWilly Tarreau * ssize_t read(int fd, void *buf, size_t count); 806bd8c8fbbSWilly Tarreau */ 807bd8c8fbbSWilly Tarreau 808bd8c8fbbSWilly Tarreau static __attribute__((unused)) 809bd8c8fbbSWilly Tarreau ssize_t sys_read(int fd, void *buf, size_t count) 810bd8c8fbbSWilly Tarreau { 811bd8c8fbbSWilly Tarreau return my_syscall3(__NR_read, fd, buf, count); 812bd8c8fbbSWilly Tarreau } 813bd8c8fbbSWilly Tarreau 814bd8c8fbbSWilly Tarreau static __attribute__((unused)) 815bd8c8fbbSWilly Tarreau ssize_t read(int fd, void *buf, size_t count) 816bd8c8fbbSWilly Tarreau { 817bd8c8fbbSWilly Tarreau ssize_t ret = sys_read(fd, buf, count); 818bd8c8fbbSWilly Tarreau 819bd8c8fbbSWilly Tarreau if (ret < 0) { 820bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 821bd8c8fbbSWilly Tarreau ret = -1; 822bd8c8fbbSWilly Tarreau } 823bd8c8fbbSWilly Tarreau return ret; 824bd8c8fbbSWilly Tarreau } 825bd8c8fbbSWilly Tarreau 826bd8c8fbbSWilly Tarreau 827bd8c8fbbSWilly Tarreau /* 828bd8c8fbbSWilly Tarreau * int reboot(int cmd); 829bd8c8fbbSWilly Tarreau * <cmd> is among LINUX_REBOOT_CMD_* 830bd8c8fbbSWilly Tarreau */ 831bd8c8fbbSWilly Tarreau 832bd8c8fbbSWilly Tarreau static __attribute__((unused)) 833bd8c8fbbSWilly Tarreau ssize_t sys_reboot(int magic1, int magic2, int cmd, void *arg) 834bd8c8fbbSWilly Tarreau { 835bd8c8fbbSWilly Tarreau return my_syscall4(__NR_reboot, magic1, magic2, cmd, arg); 836bd8c8fbbSWilly Tarreau } 837bd8c8fbbSWilly Tarreau 838bd8c8fbbSWilly Tarreau static __attribute__((unused)) 839bd8c8fbbSWilly Tarreau int reboot(int cmd) 840bd8c8fbbSWilly Tarreau { 841bd8c8fbbSWilly Tarreau int ret = sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0); 842bd8c8fbbSWilly Tarreau 843bd8c8fbbSWilly Tarreau if (ret < 0) { 844bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 845bd8c8fbbSWilly Tarreau ret = -1; 846bd8c8fbbSWilly Tarreau } 847bd8c8fbbSWilly Tarreau return ret; 848bd8c8fbbSWilly Tarreau } 849bd8c8fbbSWilly Tarreau 850bd8c8fbbSWilly Tarreau 851bd8c8fbbSWilly Tarreau /* 852bd8c8fbbSWilly Tarreau * int sched_yield(void); 853bd8c8fbbSWilly Tarreau */ 854bd8c8fbbSWilly Tarreau 855bd8c8fbbSWilly Tarreau static __attribute__((unused)) 856bd8c8fbbSWilly Tarreau int sys_sched_yield(void) 857bd8c8fbbSWilly Tarreau { 858bd8c8fbbSWilly Tarreau return my_syscall0(__NR_sched_yield); 859bd8c8fbbSWilly Tarreau } 860bd8c8fbbSWilly Tarreau 861bd8c8fbbSWilly Tarreau static __attribute__((unused)) 862bd8c8fbbSWilly Tarreau int sched_yield(void) 863bd8c8fbbSWilly Tarreau { 864bd8c8fbbSWilly Tarreau int ret = sys_sched_yield(); 865bd8c8fbbSWilly Tarreau 866bd8c8fbbSWilly Tarreau if (ret < 0) { 867bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 868bd8c8fbbSWilly Tarreau ret = -1; 869bd8c8fbbSWilly Tarreau } 870bd8c8fbbSWilly Tarreau return ret; 871bd8c8fbbSWilly Tarreau } 872bd8c8fbbSWilly Tarreau 873bd8c8fbbSWilly Tarreau 874bd8c8fbbSWilly Tarreau /* 875bd8c8fbbSWilly Tarreau * int select(int nfds, fd_set *read_fds, fd_set *write_fds, 876bd8c8fbbSWilly Tarreau * fd_set *except_fds, struct timeval *timeout); 877bd8c8fbbSWilly Tarreau */ 878bd8c8fbbSWilly Tarreau 879bd8c8fbbSWilly Tarreau static __attribute__((unused)) 880bd8c8fbbSWilly Tarreau int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 881bd8c8fbbSWilly Tarreau { 882bd8c8fbbSWilly Tarreau #if defined(__ARCH_WANT_SYS_OLD_SELECT) && !defined(__NR__newselect) 883bd8c8fbbSWilly Tarreau struct sel_arg_struct { 884bd8c8fbbSWilly Tarreau unsigned long n; 885bd8c8fbbSWilly Tarreau fd_set *r, *w, *e; 886bd8c8fbbSWilly Tarreau struct timeval *t; 887bd8c8fbbSWilly Tarreau } arg = { .n = nfds, .r = rfds, .w = wfds, .e = efds, .t = timeout }; 888bd8c8fbbSWilly Tarreau return my_syscall1(__NR_select, &arg); 889bd8c8fbbSWilly Tarreau #elif defined(__ARCH_WANT_SYS_PSELECT6) && defined(__NR_pselect6) 890bd8c8fbbSWilly Tarreau struct timespec t; 891bd8c8fbbSWilly Tarreau 892bd8c8fbbSWilly Tarreau if (timeout) { 893bd8c8fbbSWilly Tarreau t.tv_sec = timeout->tv_sec; 894bd8c8fbbSWilly Tarreau t.tv_nsec = timeout->tv_usec * 1000; 895bd8c8fbbSWilly Tarreau } 896bd8c8fbbSWilly Tarreau return my_syscall6(__NR_pselect6, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL); 897bd8c8fbbSWilly Tarreau #elif defined(__NR__newselect) || defined(__NR_select) 898bd8c8fbbSWilly Tarreau #ifndef __NR__newselect 899bd8c8fbbSWilly Tarreau #define __NR__newselect __NR_select 900bd8c8fbbSWilly Tarreau #endif 901bd8c8fbbSWilly Tarreau return my_syscall5(__NR__newselect, nfds, rfds, wfds, efds, timeout); 902bd8c8fbbSWilly Tarreau #else 903bd8c8fbbSWilly Tarreau #error None of __NR_select, __NR_pselect6, nor __NR__newselect defined, cannot implement sys_select() 904bd8c8fbbSWilly Tarreau #endif 905bd8c8fbbSWilly Tarreau } 906bd8c8fbbSWilly Tarreau 907bd8c8fbbSWilly Tarreau static __attribute__((unused)) 908bd8c8fbbSWilly Tarreau int select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 909bd8c8fbbSWilly Tarreau { 910bd8c8fbbSWilly Tarreau int ret = sys_select(nfds, rfds, wfds, efds, timeout); 911bd8c8fbbSWilly Tarreau 912bd8c8fbbSWilly Tarreau if (ret < 0) { 913bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 914bd8c8fbbSWilly Tarreau ret = -1; 915bd8c8fbbSWilly Tarreau } 916bd8c8fbbSWilly Tarreau return ret; 917bd8c8fbbSWilly Tarreau } 918bd8c8fbbSWilly Tarreau 919bd8c8fbbSWilly Tarreau 920bd8c8fbbSWilly Tarreau /* 921bd8c8fbbSWilly Tarreau * int setpgid(pid_t pid, pid_t pgid); 922bd8c8fbbSWilly Tarreau */ 923bd8c8fbbSWilly Tarreau 924bd8c8fbbSWilly Tarreau static __attribute__((unused)) 925bd8c8fbbSWilly Tarreau int sys_setpgid(pid_t pid, pid_t pgid) 926bd8c8fbbSWilly Tarreau { 927bd8c8fbbSWilly Tarreau return my_syscall2(__NR_setpgid, pid, pgid); 928bd8c8fbbSWilly Tarreau } 929bd8c8fbbSWilly Tarreau 930bd8c8fbbSWilly Tarreau static __attribute__((unused)) 931bd8c8fbbSWilly Tarreau int setpgid(pid_t pid, pid_t pgid) 932bd8c8fbbSWilly Tarreau { 933bd8c8fbbSWilly Tarreau int ret = sys_setpgid(pid, pgid); 934bd8c8fbbSWilly Tarreau 935bd8c8fbbSWilly Tarreau if (ret < 0) { 936bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 937bd8c8fbbSWilly Tarreau ret = -1; 938bd8c8fbbSWilly Tarreau } 939bd8c8fbbSWilly Tarreau return ret; 940bd8c8fbbSWilly Tarreau } 941bd8c8fbbSWilly Tarreau 942bd8c8fbbSWilly Tarreau 943bd8c8fbbSWilly Tarreau /* 944bd8c8fbbSWilly Tarreau * pid_t setsid(void); 945bd8c8fbbSWilly Tarreau */ 946bd8c8fbbSWilly Tarreau 947bd8c8fbbSWilly Tarreau static __attribute__((unused)) 948bd8c8fbbSWilly Tarreau pid_t sys_setsid(void) 949bd8c8fbbSWilly Tarreau { 950bd8c8fbbSWilly Tarreau return my_syscall0(__NR_setsid); 951bd8c8fbbSWilly Tarreau } 952bd8c8fbbSWilly Tarreau 953bd8c8fbbSWilly Tarreau static __attribute__((unused)) 954bd8c8fbbSWilly Tarreau pid_t setsid(void) 955bd8c8fbbSWilly Tarreau { 956bd8c8fbbSWilly Tarreau pid_t ret = sys_setsid(); 957bd8c8fbbSWilly Tarreau 958bd8c8fbbSWilly Tarreau if (ret < 0) { 959bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 960bd8c8fbbSWilly Tarreau ret = -1; 961bd8c8fbbSWilly Tarreau } 962bd8c8fbbSWilly Tarreau return ret; 963bd8c8fbbSWilly Tarreau } 964bd8c8fbbSWilly Tarreau 965bd8c8fbbSWilly Tarreau 966bd8c8fbbSWilly Tarreau /* 967bd8c8fbbSWilly Tarreau * int stat(const char *path, struct stat *buf); 968bd8c8fbbSWilly Tarreau * Warning: the struct stat's layout is arch-dependent. 969bd8c8fbbSWilly Tarreau */ 970bd8c8fbbSWilly Tarreau 971bd8c8fbbSWilly Tarreau static __attribute__((unused)) 972bd8c8fbbSWilly Tarreau int sys_stat(const char *path, struct stat *buf) 973bd8c8fbbSWilly Tarreau { 974bd8c8fbbSWilly Tarreau struct sys_stat_struct stat; 975bd8c8fbbSWilly Tarreau long ret; 976bd8c8fbbSWilly Tarreau 977bd8c8fbbSWilly Tarreau #ifdef __NR_newfstatat 978bd8c8fbbSWilly Tarreau /* only solution for arm64 */ 979bd8c8fbbSWilly Tarreau ret = my_syscall4(__NR_newfstatat, AT_FDCWD, path, &stat, 0); 980bd8c8fbbSWilly Tarreau #elif defined(__NR_stat) 981bd8c8fbbSWilly Tarreau ret = my_syscall2(__NR_stat, path, &stat); 982bd8c8fbbSWilly Tarreau #else 983bd8c8fbbSWilly Tarreau #error Neither __NR_newfstatat nor __NR_stat defined, cannot implement sys_stat() 984bd8c8fbbSWilly Tarreau #endif 985bd8c8fbbSWilly Tarreau buf->st_dev = stat.st_dev; 986bd8c8fbbSWilly Tarreau buf->st_ino = stat.st_ino; 987bd8c8fbbSWilly Tarreau buf->st_mode = stat.st_mode; 988bd8c8fbbSWilly Tarreau buf->st_nlink = stat.st_nlink; 989bd8c8fbbSWilly Tarreau buf->st_uid = stat.st_uid; 990bd8c8fbbSWilly Tarreau buf->st_gid = stat.st_gid; 991bd8c8fbbSWilly Tarreau buf->st_rdev = stat.st_rdev; 992bd8c8fbbSWilly Tarreau buf->st_size = stat.st_size; 993bd8c8fbbSWilly Tarreau buf->st_blksize = stat.st_blksize; 994bd8c8fbbSWilly Tarreau buf->st_blocks = stat.st_blocks; 995bd8c8fbbSWilly Tarreau buf->st_atime = stat.st_atime; 996bd8c8fbbSWilly Tarreau buf->st_mtime = stat.st_mtime; 997bd8c8fbbSWilly Tarreau buf->st_ctime = stat.st_ctime; 998bd8c8fbbSWilly Tarreau return ret; 999bd8c8fbbSWilly Tarreau } 1000bd8c8fbbSWilly Tarreau 1001bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1002bd8c8fbbSWilly Tarreau int stat(const char *path, struct stat *buf) 1003bd8c8fbbSWilly Tarreau { 1004bd8c8fbbSWilly Tarreau int ret = sys_stat(path, buf); 1005bd8c8fbbSWilly Tarreau 1006bd8c8fbbSWilly Tarreau if (ret < 0) { 1007bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1008bd8c8fbbSWilly Tarreau ret = -1; 1009bd8c8fbbSWilly Tarreau } 1010bd8c8fbbSWilly Tarreau return ret; 1011bd8c8fbbSWilly Tarreau } 1012bd8c8fbbSWilly Tarreau 1013bd8c8fbbSWilly Tarreau 1014bd8c8fbbSWilly Tarreau /* 1015bd8c8fbbSWilly Tarreau * int symlink(const char *old, const char *new); 1016bd8c8fbbSWilly Tarreau */ 1017bd8c8fbbSWilly Tarreau 1018bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1019bd8c8fbbSWilly Tarreau int sys_symlink(const char *old, const char *new) 1020bd8c8fbbSWilly Tarreau { 1021bd8c8fbbSWilly Tarreau #ifdef __NR_symlinkat 1022bd8c8fbbSWilly Tarreau return my_syscall3(__NR_symlinkat, old, AT_FDCWD, new); 1023bd8c8fbbSWilly Tarreau #elif defined(__NR_symlink) 1024bd8c8fbbSWilly Tarreau return my_syscall2(__NR_symlink, old, new); 1025bd8c8fbbSWilly Tarreau #else 1026bd8c8fbbSWilly Tarreau #error Neither __NR_symlinkat nor __NR_symlink defined, cannot implement sys_symlink() 1027bd8c8fbbSWilly Tarreau #endif 1028bd8c8fbbSWilly Tarreau } 1029bd8c8fbbSWilly Tarreau 1030bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1031bd8c8fbbSWilly Tarreau int symlink(const char *old, const char *new) 1032bd8c8fbbSWilly Tarreau { 1033bd8c8fbbSWilly Tarreau int ret = sys_symlink(old, new); 1034bd8c8fbbSWilly Tarreau 1035bd8c8fbbSWilly Tarreau if (ret < 0) { 1036bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1037bd8c8fbbSWilly Tarreau ret = -1; 1038bd8c8fbbSWilly Tarreau } 1039bd8c8fbbSWilly Tarreau return ret; 1040bd8c8fbbSWilly Tarreau } 1041bd8c8fbbSWilly Tarreau 1042bd8c8fbbSWilly Tarreau 1043bd8c8fbbSWilly Tarreau /* 1044bd8c8fbbSWilly Tarreau * mode_t umask(mode_t mode); 1045bd8c8fbbSWilly Tarreau */ 1046bd8c8fbbSWilly Tarreau 1047bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1048bd8c8fbbSWilly Tarreau mode_t sys_umask(mode_t mode) 1049bd8c8fbbSWilly Tarreau { 1050bd8c8fbbSWilly Tarreau return my_syscall1(__NR_umask, mode); 1051bd8c8fbbSWilly Tarreau } 1052bd8c8fbbSWilly Tarreau 1053bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1054bd8c8fbbSWilly Tarreau mode_t umask(mode_t mode) 1055bd8c8fbbSWilly Tarreau { 1056bd8c8fbbSWilly Tarreau return sys_umask(mode); 1057bd8c8fbbSWilly Tarreau } 1058bd8c8fbbSWilly Tarreau 1059bd8c8fbbSWilly Tarreau 1060bd8c8fbbSWilly Tarreau /* 1061bd8c8fbbSWilly Tarreau * int umount2(const char *path, int flags); 1062bd8c8fbbSWilly Tarreau */ 1063bd8c8fbbSWilly Tarreau 1064bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1065bd8c8fbbSWilly Tarreau int sys_umount2(const char *path, int flags) 1066bd8c8fbbSWilly Tarreau { 1067bd8c8fbbSWilly Tarreau return my_syscall2(__NR_umount2, path, flags); 1068bd8c8fbbSWilly Tarreau } 1069bd8c8fbbSWilly Tarreau 1070bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1071bd8c8fbbSWilly Tarreau int umount2(const char *path, int flags) 1072bd8c8fbbSWilly Tarreau { 1073bd8c8fbbSWilly Tarreau int ret = sys_umount2(path, flags); 1074bd8c8fbbSWilly Tarreau 1075bd8c8fbbSWilly Tarreau if (ret < 0) { 1076bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1077bd8c8fbbSWilly Tarreau ret = -1; 1078bd8c8fbbSWilly Tarreau } 1079bd8c8fbbSWilly Tarreau return ret; 1080bd8c8fbbSWilly Tarreau } 1081bd8c8fbbSWilly Tarreau 1082bd8c8fbbSWilly Tarreau 1083bd8c8fbbSWilly Tarreau /* 1084bd8c8fbbSWilly Tarreau * int unlink(const char *path); 1085bd8c8fbbSWilly Tarreau */ 1086bd8c8fbbSWilly Tarreau 1087bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1088bd8c8fbbSWilly Tarreau int sys_unlink(const char *path) 1089bd8c8fbbSWilly Tarreau { 1090bd8c8fbbSWilly Tarreau #ifdef __NR_unlinkat 1091bd8c8fbbSWilly Tarreau return my_syscall3(__NR_unlinkat, AT_FDCWD, path, 0); 1092bd8c8fbbSWilly Tarreau #elif defined(__NR_unlink) 1093bd8c8fbbSWilly Tarreau return my_syscall1(__NR_unlink, path); 1094bd8c8fbbSWilly Tarreau #else 1095bd8c8fbbSWilly Tarreau #error Neither __NR_unlinkat nor __NR_unlink defined, cannot implement sys_unlink() 1096bd8c8fbbSWilly Tarreau #endif 1097bd8c8fbbSWilly Tarreau } 1098bd8c8fbbSWilly Tarreau 1099bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1100bd8c8fbbSWilly Tarreau int unlink(const char *path) 1101bd8c8fbbSWilly Tarreau { 1102bd8c8fbbSWilly Tarreau int ret = sys_unlink(path); 1103bd8c8fbbSWilly Tarreau 1104bd8c8fbbSWilly Tarreau if (ret < 0) { 1105bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1106bd8c8fbbSWilly Tarreau ret = -1; 1107bd8c8fbbSWilly Tarreau } 1108bd8c8fbbSWilly Tarreau return ret; 1109bd8c8fbbSWilly Tarreau } 1110bd8c8fbbSWilly Tarreau 1111bd8c8fbbSWilly Tarreau 1112bd8c8fbbSWilly Tarreau /* 1113bd8c8fbbSWilly Tarreau * pid_t wait(int *status); 1114bd8c8fbbSWilly Tarreau * pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage); 1115bd8c8fbbSWilly Tarreau * pid_t waitpid(pid_t pid, int *status, int options); 1116bd8c8fbbSWilly Tarreau */ 1117bd8c8fbbSWilly Tarreau 1118bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1119bd8c8fbbSWilly Tarreau pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1120bd8c8fbbSWilly Tarreau { 1121bd8c8fbbSWilly Tarreau return my_syscall4(__NR_wait4, pid, status, options, rusage); 1122bd8c8fbbSWilly Tarreau } 1123bd8c8fbbSWilly Tarreau 1124bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1125bd8c8fbbSWilly Tarreau pid_t wait(int *status) 1126bd8c8fbbSWilly Tarreau { 1127bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(-1, status, 0, NULL); 1128bd8c8fbbSWilly Tarreau 1129bd8c8fbbSWilly Tarreau if (ret < 0) { 1130bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1131bd8c8fbbSWilly Tarreau ret = -1; 1132bd8c8fbbSWilly Tarreau } 1133bd8c8fbbSWilly Tarreau return ret; 1134bd8c8fbbSWilly Tarreau } 1135bd8c8fbbSWilly Tarreau 1136bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1137bd8c8fbbSWilly Tarreau pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1138bd8c8fbbSWilly Tarreau { 1139bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, rusage); 1140bd8c8fbbSWilly Tarreau 1141bd8c8fbbSWilly Tarreau if (ret < 0) { 1142bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1143bd8c8fbbSWilly Tarreau ret = -1; 1144bd8c8fbbSWilly Tarreau } 1145bd8c8fbbSWilly Tarreau return ret; 1146bd8c8fbbSWilly Tarreau } 1147bd8c8fbbSWilly Tarreau 1148bd8c8fbbSWilly Tarreau 1149bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1150bd8c8fbbSWilly Tarreau pid_t waitpid(pid_t pid, int *status, int options) 1151bd8c8fbbSWilly Tarreau { 1152bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, NULL); 1153bd8c8fbbSWilly Tarreau 1154bd8c8fbbSWilly Tarreau if (ret < 0) { 1155bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1156bd8c8fbbSWilly Tarreau ret = -1; 1157bd8c8fbbSWilly Tarreau } 1158bd8c8fbbSWilly Tarreau return ret; 1159bd8c8fbbSWilly Tarreau } 1160bd8c8fbbSWilly Tarreau 1161bd8c8fbbSWilly Tarreau 1162bd8c8fbbSWilly Tarreau /* 1163bd8c8fbbSWilly Tarreau * ssize_t write(int fd, const void *buf, size_t count); 1164bd8c8fbbSWilly Tarreau */ 1165bd8c8fbbSWilly Tarreau 1166bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1167bd8c8fbbSWilly Tarreau ssize_t sys_write(int fd, const void *buf, size_t count) 1168bd8c8fbbSWilly Tarreau { 1169bd8c8fbbSWilly Tarreau return my_syscall3(__NR_write, fd, buf, count); 1170bd8c8fbbSWilly Tarreau } 1171bd8c8fbbSWilly Tarreau 1172bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1173bd8c8fbbSWilly Tarreau ssize_t write(int fd, const void *buf, size_t count) 1174bd8c8fbbSWilly Tarreau { 1175bd8c8fbbSWilly Tarreau ssize_t ret = sys_write(fd, buf, count); 1176bd8c8fbbSWilly Tarreau 1177bd8c8fbbSWilly Tarreau if (ret < 0) { 1178bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1179bd8c8fbbSWilly Tarreau ret = -1; 1180bd8c8fbbSWilly Tarreau } 1181bd8c8fbbSWilly Tarreau return ret; 1182bd8c8fbbSWilly Tarreau } 1183bd8c8fbbSWilly Tarreau 1184bd8c8fbbSWilly Tarreau 1185bd8c8fbbSWilly Tarreau #endif /* _NOLIBC_SYS_H */ 1186