diff options
Diffstat (limited to 'tools/include/nolibc/unistd.h')
| -rw-r--r-- | tools/include/nolibc/unistd.h | 46 |
1 files changed, 34 insertions, 12 deletions
diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index e38f3660c051..bb5e80f3f05d 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -4,6 +4,9 @@ * Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu> */ +/* make sure to include all global symbols */ +#include "nolibc.h" + #ifndef _NOLIBC_UNISTD_H #define _NOLIBC_UNISTD_H @@ -17,13 +20,41 @@ #define STDOUT_FILENO 1 #define STDERR_FILENO 2 +#define F_OK 0 +#define X_OK 1 +#define W_OK 2 +#define R_OK 4 + +/* + * int access(const char *path, int amode); + * int faccessat(int fd, const char *path, int amode, int flag); + */ + +static __attribute__((unused)) +int sys_faccessat(int fd, const char *path, int amode, int flag) +{ + return my_syscall4(__NR_faccessat, fd, path, amode, flag); +} + +static __attribute__((unused)) +int faccessat(int fd, const char *path, int amode, int flag) +{ + return __sysret(sys_faccessat(fd, path, amode, flag)); +} + +static __attribute__((unused)) +int access(const char *path, int amode) +{ + return faccessat(AT_FDCWD, path, amode, 0); +} + static __attribute__((unused)) int msleep(unsigned int msecs) { struct timeval my_timeval = { msecs / 1000, (msecs % 1000) * 1000 }; - if (sys_select(0, 0, 0, 0, &my_timeval) < 0) + if (sys_select(0, NULL, NULL, NULL, &my_timeval) < 0) return (my_timeval.tv_sec * 1000) + (my_timeval.tv_usec / 1000) + !!(my_timeval.tv_usec % 1000); @@ -36,7 +67,7 @@ unsigned int sleep(unsigned int seconds) { struct timeval my_timeval = { seconds, 0 }; - if (sys_select(0, 0, 0, 0, &my_timeval) < 0) + if (sys_select(0, NULL, NULL, NULL, &my_timeval) < 0) return my_timeval.tv_sec + !!my_timeval.tv_usec; else return 0; @@ -47,7 +78,7 @@ int usleep(unsigned int usecs) { struct timeval my_timeval = { usecs / 1000000, usecs % 1000000 }; - return sys_select(0, 0, 0, 0, &my_timeval); + return sys_select(0, NULL, NULL, NULL, &my_timeval); } static __attribute__((unused)) @@ -56,13 +87,4 @@ int tcsetpgrp(int fd, pid_t pid) return ioctl(fd, TIOCSPGRP, &pid); } -#define __syscall_narg(_0, _1, _2, _3, _4, _5, _6, N, ...) N -#define _syscall_narg(...) __syscall_narg(__VA_ARGS__, 6, 5, 4, 3, 2, 1, 0) -#define _syscall(N, ...) __sysret(my_syscall##N(__VA_ARGS__)) -#define _syscall_n(N, ...) _syscall(N, __VA_ARGS__) -#define syscall(...) _syscall_n(_syscall_narg(__VA_ARGS__), ##__VA_ARGS__) - -/* make sure to include all global symbols */ -#include "nolibc.h" - #endif /* _NOLIBC_UNISTD_H */ |