diff options
Diffstat (limited to 'libc/sysdeps/linux/common/syscalls.c')
| -rw-r--r-- | libc/sysdeps/linux/common/syscalls.c | 364 |
1 files changed, 300 insertions, 64 deletions
diff --git a/libc/sysdeps/linux/common/syscalls.c b/libc/sysdeps/linux/common/syscalls.c index 76ba1d874..89af9ec4b 100644 --- a/libc/sysdeps/linux/common/syscalls.c +++ b/libc/sysdeps/linux/common/syscalls.c @@ -77,11 +77,17 @@ weak_alias (__libc_write, __write) #endif //#define __NR_open 5 -#ifdef L___libc_open +#ifdef L___syscall_open +#define __NR___syscall_open __NR_open #include <stdarg.h> /* Do not include fcntl.h, so gcc doesn't whine the prototype */ -#define __NR___libc_open __NR_open -_syscall3(int, __libc_open, const char *, fn, int, flags, mode_t, mode); +static inline +_syscall3(int, __syscall_open, const char *, fn, int, flags, __kernel_mode_t, mode); +int __libc_open (const char * fn, int flags, mode_t mode) +{ + return __syscall_open(fn, flags, mode); +} + weak_alias(__libc_open, open) #endif @@ -97,10 +103,15 @@ weak_alias(__libc_close, close) // Implemented using wait4 //#define __NR_creat 8 -#ifdef L_creat +#ifdef L___syscall_creat #include <fcntl.h> #ifdef __NR_creat -_syscall2(int, creat, const char *, file, mode_t, mode); +#define __NR___syscall_creat __NR_creat +_syscall2(int, __syscall_creat, const char *, file, __kernel_mode_t, mode); +int creat (const char *file, mode_t mode) +{ + return __syscall_creat (file, mode); +} #else extern int __libc_open (const char *file, int flags, mode_t mode); int creat (const char *file, mode_t mode) @@ -170,9 +181,15 @@ int mknod(const char *path, mode_t mode, dev_t dev) #endif //#define __NR_chmod 15 -#ifdef L_chmod +#ifdef L___syscall_chmod #include <sys/stat.h> -_syscall2(int, chmod, const char *, path, mode_t, mode); +#define __NR___syscall_chmod __NR_chmod +static inline +_syscall2(int, __syscall_chmod, const char *, path, __kernel_mode_t, mode); +int chmod(const char *path, mode_t mode) +{ + return __syscall_chmod(path, mode); +} #endif /* Old kernels don't have lchown -- do chown instead. This @@ -183,9 +200,15 @@ _syscall2(int, chmod, const char *, path, mode_t, mode); #endif //#define __NR_lchown 16 -#ifdef L_lchown +#ifdef L___syscall_lchown #include <unistd.h> -_syscall3(int, lchown, const char *, path, uid_t, owner, gid_t, group); +#define __NR___syscall_lchown __NR_lchown +static inline +_syscall3(int, __syscall_lchown, const char *, path, __kernel_uid_t, owner, __kernel_gid_t, group); +int lchown(const char *path, uid_t owner, gid_t group) +{ + return __syscall_lchown(path, owner, group); +} #endif @@ -228,7 +251,20 @@ _syscall1(int, umount, const char *, specialfile); #endif //#define __NR_setuid 23 -// See setuid.c +#ifdef L___syscall_setuid +#define __NR___syscall_setuid __NR_setuid +#include <unistd.h> +static inline +_syscall1(int, __syscall_setuid, __kernel_uid_t, uid); +int setuid(uid_t uid) +{ + if (uid == (uid_t) ~0 || uid != (uid_t) ((int) uid)) { + __set_errno (EINVAL); + return -1; + } + return(__syscall_setuid(uid)); +} +#endif //#define __NR_getuid 24 #ifdef L_getuid @@ -261,7 +297,7 @@ int stime(const time_t *when) #ifdef L___ptrace #include <sys/ptrace.h> #define __NR___ptrace __NR_ptrace -_syscall4(long, __ptrace, enum __ptrace_request, request, pid_t, pid, +_syscall4(long, __ptrace, enum __ptrace_request, request, __kernel_pid_t, pid, void*, addr, void*, data); #endif @@ -409,10 +445,16 @@ int nice (int incr) //See sync.c //#define __NR_kill 37 -#ifdef L_kill +#ifdef L___syscall_kill #include <signal.h> #undef kill -_syscall2(int, kill, pid_t, pid, int, sig); +#define __NR___syscall_kill __NR_kill +static inline +_syscall2(int, __syscall_kill, __kernel_pid_t, pid, int, sig); +int kill(pid_t pid, int sig) +{ + return(__syscall_kill(pid, sig)); +} #endif //#define __NR_rename 38 @@ -422,9 +464,15 @@ _syscall2(int, rename, const char *, oldpath, const char *, newpath); #endif //#define __NR_mkdir 39 -#ifdef L_mkdir +#ifdef L___syscall_mkdir #include <sys/stat.h> -_syscall2(int, mkdir, const char *, pathname, mode_t, mode); +#define __NR___syscall_mkdir __NR_mkdir +static inline +_syscall2(int, __syscall_mkdir, const char *, pathname, __kernel_mode_t, mode); +int mkdir(const char * pathname, mode_t mode) +{ + return(__syscall_mkdir(pathname, mode)); +} #endif //#define __NR_rmdir 40 @@ -456,9 +504,15 @@ _syscall1(clock_t, times, struct tms *, buf); //#define __NR_brk 45 //#define __NR_setgid 46 -#ifdef L_setgid +#ifdef L___syscall_setgid #include <unistd.h> -_syscall1(int, setgid, gid_t, gid); +#define __NR___syscall_setgid __NR_setgid +static inline +_syscall1(int, __syscall_setgid, __kernel_gid_t, gid); +int setgid(gid_t gid) +{ + return(__syscall_setgid(gid)); +} #endif //#define __NR_getgid 47 @@ -568,9 +622,15 @@ weak_alias(__libc_fcntl, fcntl) //#define __NR_mpx 56 //#define __NR_setpgid 57 -#ifdef L_setpgid +#ifdef L___syscall_setpgid #include <unistd.h> -_syscall2(int, setpgid, pid_t, pid, pid_t, pgid); +#define __NR___syscall_setpgid __NR_setpgid +static inline +_syscall2(int, __syscall_setpgid, __kernel_pid_t, pid, __kernel_pid_t, pgid) +int setpgid(pid_t pid, pid_t pgid) +{ + return(__syscall_setpgid(pid, pgid)); +} #endif //#define __NR_ulimit 58 @@ -578,9 +638,15 @@ _syscall2(int, setpgid, pid_t, pid, pid_t, pgid); //#define __NR_oldolduname 59 //#define __NR_umask 60 -#ifdef L_umask +#ifdef L___syscall_umask #include <sys/stat.h> -_syscall1(mode_t, umask, mode_t, mask); +#define __NR___syscall_umask __NR_umask +static inline +_syscall1(__kernel_mode_t, __syscall_umask, __kernel_mode_t, mask); +mode_t umask(mode_t mask) +{ + return(__syscall_umask(mask)); +} #endif //#define __NR_chroot 61 @@ -624,8 +690,8 @@ _syscall0(pid_t, setsid); //#define __NR_sigaction 67 #ifndef __NR_rt_sigaction -#define __NR___syscall_sigaction __NR_sigaction #ifdef L___syscall_sigaction +#define __NR___syscall_sigaction __NR_sigaction #include <signal.h> #undef sigaction _syscall3(int, __syscall_sigaction, int, signum, const struct sigaction *, act, @@ -638,15 +704,27 @@ _syscall3(int, __syscall_sigaction, int, signum, const struct sigaction *, act, //#define __NR_ssetmask 69 //#define __NR_setreuid 70 -#ifdef L_setreuid +#ifdef L___syscall_setreuid #include <unistd.h> -_syscall2(int, setreuid, uid_t, ruid, uid_t, euid); +#define __NR___syscall_setreuid __NR_setreuid +static inline +_syscall2(int, __syscall_setreuid, __kernel_uid_t, ruid, __kernel_uid_t, euid); +int setreuid(uid_t ruid, uid_t euid) +{ + return(__syscall_setreuid(ruid, euid)); +} #endif //#define __NR_setregid 71 -#ifdef L_setregid +#ifdef L___syscall_setregid #include <unistd.h> -_syscall2(int, setregid, gid_t, rgid, gid_t, egid); +#define __NR___syscall_setregid __NR_setregid +static inline +_syscall2(int, __syscall_setregid, __kernel_gid_t, rgid, __kernel_gid_t, egid); +int setregid(gid_t rgid, gid_t egid) +{ + return(__syscall_setregid(rgid, egid)); +} #endif //#define __NR_sigsuspend 72 @@ -757,16 +835,56 @@ _syscall2(int, settimeofday, const struct timeval *, tv, #endif //#define __NR_getgroups 80 -#ifdef L_getgroups +#ifdef L___syscall_getgroups #include <unistd.h> -_syscall2(int, getgroups, int, size, gid_t *, list); +#define __NR___syscall_getgroups __NR_getgroups +static inline +_syscall2(int, __syscall_getgroups, int, size, __kernel_gid_t *, list); +#define MIN(a,b) (((a)<(b))?(a):(b)) +int getgroups(int n, gid_t *groups) +{ + if (unlikely(n < 0)) { + __set_errno(EINVAL); + return -1; + } else { + int i, ngids; + __kernel_gid_t kernel_groups[n = MIN(n, sysconf(_SC_NGROUPS_MAX))]; + ngids = __syscall_getgroups(n, kernel_groups); + if (n != 0 && ngids > 0) { + for (i = 0; i < ngids; i++) { + (groups)[i] = kernel_groups[i]; + } + } + return ngids; + } +} #endif //#define __NR_setgroups 81 -#ifdef L_setgroups +#ifdef L___syscall_setgroups #include <unistd.h> #include <grp.h> -_syscall2(int, setgroups, size_t, size, const gid_t *, list); +#define __NR___syscall_setgroups __NR_setgroups +static inline +_syscall2(int, __syscall_setgroups, size_t, size, const __kernel_gid_t *, list); +int setgroups (size_t n, const gid_t *groups) +{ + if (n > (size_t)sysconf(_SC_NGROUPS_MAX)) { + __set_errno (EINVAL); + return -1; + } else { + size_t i; + __kernel_gid_t kernel_groups[n]; + for (i = 0; i < n; i++) { + kernel_groups[i] = (groups)[i]; + if (groups[i] != (gid_t) ((__kernel_gid_t)groups[i])) { + __set_errno (EINVAL); + return -1; + } + } + return(__syscall_setgroups(n, kernel_groups)); + } +} #endif //#define __NR_select 82 @@ -866,15 +984,27 @@ _syscall2(int, ftruncate, int, fd, __off_t, length); #endif //#define __NR_fchmod 94 -#ifdef L_fchmod +#ifdef L___syscall_fchmod #include <sys/stat.h> -_syscall2(int, fchmod, int, fildes, mode_t, mode); +#define __NR___syscall_fchmod __NR_fchmod +static inline +_syscall2(int, __syscall_fchmod, int, fildes, __kernel_mode_t, mode); +int fchmod(int fildes, mode_t mode) +{ + return(__syscall_fchmod(fildes, mode)); +} #endif //#define __NR_fchown 95 -#ifdef L_fchown +#ifdef L___syscall_fchown #include <unistd.h> -_syscall3(int, fchown, int, fd, uid_t, owner, gid_t, group); +#define __NR___syscall_fchown __NR_fchown +static inline +_syscall3(int, __syscall_fchown, int, fd, __kernel_uid_t, owner, __kernel_gid_t, group); +int fchown(int fd, uid_t owner, gid_t group) +{ + return(__syscall_fchown(fd, owner, group)); +} #endif //#define __NR_getpriority 96 @@ -1067,8 +1197,14 @@ _syscall0(int, vhangup); //#define __NR_vm86old 113 //#define __NR_wait4 114 -#ifdef L_wait4 -_syscall4(int, wait4, pid_t, pid, int *, status, int, opts, void *, rusage); +#ifdef L___syscall_wait4 +#define __NR___syscall_wait4 __NR_wait4 +static inline +_syscall4(int, __syscall_wait4, __kernel_pid_t, pid, int *, status, int, opts, void *, rusage); +int wait4(pid_t pid, int * status, int opts, void * rusage) +{ + return(__syscall_wait4(pid, status, opts, rusage)); +} #endif //#define __NR_swapoff 115 @@ -1187,8 +1323,14 @@ _syscall4(int, quotactl, int, cmd, const char *, special , int, id, caddr_t, add #endif //#define __NR_getpgid 132 -#ifdef L_getpgid -_syscall1(pid_t, getpgid, pid_t, pid); +#ifdef L___syscall_getpgid +#define __NR___syscall_getpgid __NR_getpgid +static inline +_syscall1(__kernel_pid_t, __syscall_getpgid, __kernel_pid_t, pid); +pid_t getpgid(pid_t pid) +{ + return(__syscall_getpgid(pid)); +} #endif //#define __NR_fchdir 133 @@ -1211,17 +1353,29 @@ _syscall2(int, bdflush, int, __func, long int, __data); //#define __NR_setfsuid 138 #ifdef __NR_setfsuid -#ifdef L_setfsuid +#ifdef L___syscall_setfsuid #include <sys/fsuid.h> -_syscall1(int, setfsuid, uid_t, uid); +#define __NR___syscall_setfsuid __NR_setfsuid +static inline +_syscall1(int, __syscall_setfsuid, __kernel_uid_t, uid); +int setfsuid(uid_t uid) +{ + return(__syscall_setfsuid(uid)); +} #endif #endif //#define __NR_setfsgid 139 #ifdef __NR_setfsgid -#ifdef L_setfsgid +#ifdef L___syscall_setfsgid #include <sys/fsuid.h> -_syscall1(int, setfsgid, gid_t, gid); +#define __NR___syscall_setfsgid __NR_setfsgid +static inline +_syscall1(int, __syscall_setfsgid, __kernel_gid_t, gid); +int setfsgid(gid_t gid) +{ + return(__syscall_setfsgid(gid)); +} #endif #endif @@ -1274,9 +1428,15 @@ _syscall3(ssize_t, writev, int, filedes, const struct iovec *, vector, int, #endif //#define __NR_getsid 147 -#ifdef L_getsid +#ifdef L___syscall_getsid #include <unistd.h> -_syscall1(pid_t, getsid, pid_t, pid); +#define __NR___syscall_getsid __NR_getsid +static inline +_syscall1(__kernel_pid_t, __syscall_getsid, __kernel_pid_t, pid) +pid_t getsid(pid_t pid) +{ + return(__syscall_getsid(pid)); +} #endif //#define __NR_fdatasync 148 @@ -1344,33 +1504,57 @@ int sysctl(int *name, int nlen, void *oldval, size_t *oldlenp, //#define __NR_sched_setparam 154 #ifdef __NR_sched_setparam -#ifdef L_sched_setparam +#ifdef L___syscall_sched_setparam #include <sched.h> -_syscall2(int, sched_setparam, pid_t, pid, const struct sched_param *, p); +#define __NR___syscall_sched_setparam __NR_sched_setparam +static inline +_syscall2(int, __syscall_sched_setparam, __kernel_pid_t, pid, const struct sched_param *, p); +int sched_setparam(pid_t pid, const struct sched_param * p) +{ + return(__syscall_sched_setparam(pid, p)); +} #endif #endif //#define __NR_sched_getparam 155 #ifdef __NR_sched_getparam -#ifdef L_sched_getparam +#ifdef L___syscall_sched_getparam #include <sched.h> -_syscall2(int, sched_getparam, pid_t, pid, struct sched_param *, p); +#define __NR___syscall_sched_getparam __NR_sched_getparam +static inline +_syscall2(int, __syscall_sched_getparam, __kernel_pid_t, pid, struct sched_param *, p); +int sched_getparam(pid_t pid, struct sched_param * p) +{ + return(__syscall_sched_getparam(pid, p)); +} #endif #endif //#define __NR_sched_setscheduler 156 #ifdef __NR_sched_setscheduler -#ifdef L_sched_setscheduler +#ifdef L___syscall_sched_setscheduler #include <sched.h> -_syscall3(int, sched_setscheduler, pid_t, pid, int, policy, const struct sched_param *, p); +#define __NR___syscall_sched_setscheduler __NR_sched_setscheduler +static inline +_syscall3(int, __syscall_sched_setscheduler, __kernel_pid_t, pid, int, policy, const struct sched_param *, p); +int sched_setscheduler(pid_t pid, int policy, const struct sched_param * p) +{ + return(__syscall_sched_setscheduler(pid, policy, p)); +} #endif #endif //#define __NR_sched_getscheduler 157 #ifdef __NR_sched_getscheduler -#ifdef L_sched_getscheduler +#ifdef L___syscall_sched_getscheduler #include <sched.h> -_syscall1(int, sched_getscheduler, pid_t, pid); +#define __NR___syscall_sched_getscheduler __NR_sched_getscheduler +static inline +_syscall1(int, __syscall_sched_getscheduler, __kernel_pid_t, pid); +int sched_getscheduler(pid_t pid) +{ + return(__syscall_sched_getscheduler(pid)); +} #endif #endif @@ -1400,9 +1584,15 @@ _syscall1(int, sched_get_priority_min, int, policy); //#define __NR_sched_rr_get_interval 161 #ifdef __NR_sched_rr_get_interval -#ifdef L_sched_rr_get_interval +#ifdef L___syscall_sched_rr_get_interval #include <sched.h> -_syscall2(int, sched_rr_get_interval, pid_t, pid, struct timespec *, tp); +#define __NR___syscall_sched_rr_get_interval __NR_sched_rr_get_interval +static inline +_syscall2(int, __syscall_sched_rr_get_interval, __kernel_pid_t, pid, struct timespec *, tp); +int sched_rr_get_interval(pid_t pid, struct timespec * tp) +{ + return(__syscall_sched_rr_get_interval(pid, tp)); +} #endif #endif @@ -1423,15 +1613,35 @@ _syscall4(__ptr_t, mremap, __ptr_t, old_address, size_t, old_size, size_t, new_s //#define __NR_setresuid 164 #ifdef __NR_setresuid -#ifdef L_setresuid -_syscall3(int, setresuid, uid_t, ruid, uid_t, euid, uid_t, suid); +#ifdef L___syscall_setresuid +#define __NR___syscall_setresuid __NR_setresuid +static inline +_syscall3(int, __syscall_setresuid, __kernel_uid_t, rgid, __kernel_uid_t, egid, __kernel_uid_t, sgid); +int setresuid(uid_t ruid, uid_t euid, uid_t suid) +{ + return(__syscall_setresuid(ruid, euid, suid)); +} #endif #endif //#define __NR_getresuid 165 #ifdef __NR_getresuid -#ifdef L_getresuid -_syscall3(int, getresuid, uid_t *, euid, uid_t *, ruid, uid_t *, suid); +#ifdef L___syscall_getresuid +#define __NR___syscall_getresuid __NR_getresuid +static inline +_syscall3(int, __syscall_getresuid, __kernel_uid_t *, ruid, __kernel_uid_t *, euid, __kernel_uid_t *, suid); +int getresuid (uid_t *ruid, uid_t *euid, uid_t *suid) +{ + int result; + __kernel_uid_t k_ruid, k_euid, k_suid; + result = __syscall_getresuid(&k_ruid, &k_euid, &k_suid); + if (result == 0) { + *ruid = (uid_t) k_ruid; + *euid = (uid_t) k_euid; + *suid = (uid_t) k_suid; + } + return result; +} #endif #endif @@ -1463,15 +1673,35 @@ _syscall3(int, poll, struct pollfd *, fds, unsigned long int, nfds, int, timeout //#define __NR_setresgid 170 #ifdef __NR_setresgid -#ifdef L_setresgid -_syscall3(int, setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid); +#ifdef L___syscall_setresgid +#define __NR___syscall_setresgid __NR_setresgid +static inline +_syscall3(int, __syscall_setresgid, __kernel_gid_t, rgid, __kernel_gid_t, egid, __kernel_gid_t, sgid); +int setresgid(gid_t rgid, gid_t egid, gid_t sgid) +{ + return(__syscall_setresgid(rgid, egid, sgid)); +} #endif #endif //#define __NR_getresgid 171 #ifdef __NR_getresgid -#ifdef L_getresgid -_syscall3(int, getresgid, gid_t *, egid, gid_t *, rgid, gid_t *, sgid); +#ifdef L___syscall_getresgid +#define __NR___syscall_getresgid __NR_getresgid +static inline +_syscall3(int, __syscall_getresgid, __kernel_gid_t *, egid, __kernel_gid_t *, rgid, __kernel_gid_t *, sgid); +int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid) +{ + int result; + __kernel_gid_t k_rgid, k_egid, k_sgid; + result = __syscall_getresgid(&k_rgid, &k_egid, &k_sgid); + if (result == 0) { + *rgid = (gid_t) k_rgid; + *egid = (gid_t) k_egid; + *sgid = (gid_t) k_sgid; + } + return result; +} #endif #endif @@ -1584,9 +1814,15 @@ int sigsuspend (const sigset_t *mask) // See pread_write.c //#define __NR_chown 182 -#ifdef L_chown +#ifdef L___syscall_chown #include <unistd.h> -_syscall3(int, chown, const char *, path, uid_t, owner, gid_t, group); +#define __NR___syscall_chown __NR_chown +static inline +_syscall3(int, __syscall_chown, const char *, path, __kernel_uid_t, owner, __kernel_gid_t, group); +int chown(const char * path, uid_t owner, gid_t group) +{ + return(__syscall_chown(path, owner, group)); +} #endif //#define __NR_getcwd 183 |