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Add all posix_spawn_file_actions_ functions

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This commit is contained in:
BoloniniD 2022-08-28 20:54:25 +03:00
parent 14216d1dc0
commit cb32fa4512
1 changed files with 95 additions and 4 deletions
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99
base/glibc-compatibility/glibc-compatibility.c
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@ -175,7 +175,6 @@ void __explicit_bzero_chk(void * buf, size_t len, size_t unused)
return explicit_bzero(buf, len);
}
#define _GNU_SOURCE
#include <unistd.h>
#include "syscall.h"
@ -215,8 +214,7 @@ struct statx {
uint64_t spare[14];
};
static int fstatat_statx(int fd, const char *restrict path, struct stat *restrict st, int flag)
{
static int fstatat_statx(int fd, const char *restrict path, struct stat *restrict st, int flag) {
struct statx stx;
int ret = syscall(SYS_statx, fd, path, flag, 0x7ff, &stx);
@ -251,7 +249,6 @@ static int fstatat_statx(int fd, const char *restrict path, struct stat *restric
return 0;
}
#define _GNU_SOURCE
#include <unistd.h>
#include <syscall.h>
#include "syscall.h"
@ -289,6 +286,100 @@ int posix_spawnp(pid_t *restrict res, const char *restrict file,
return posix_spawn(res, file, fa, &spawnp_attr, argv, envp);
}
#define FDOP_CLOSE 1
#define FDOP_DUP2 2
#define FDOP_OPEN 3
#define FDOP_CHDIR 4
#define FDOP_FCHDIR 5
struct fdop {
struct fdop *next, *prev;
int cmd, fd, srcfd, oflag;
mode_t mode;
char path[];
};
#define ENOMEM 12
#define EBADF 9
int posix_spawn_file_actions_init(posix_spawn_file_actions_t *fa) {
fa->__actions = 0;
return 0;
}
int posix_spawn_file_actions_addchdir_np(posix_spawn_file_actions_t *restrict fa, const char *restrict path) {
struct fdop *op = malloc(sizeof *op + strlen(path) + 1);
if (!op) return ENOMEM;
op->cmd = FDOP_CHDIR;
op->fd = -1;
strcpy(op->path, path);
if ((op->next = fa->__actions)) op->next->prev = op;
op->prev = 0;
fa->__actions = op;
return 0;
}
int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *fa, int fd) {
if (fd < 0) return EBADF;
struct fdop *op = malloc(sizeof *op);
if (!op) return ENOMEM;
op->cmd = FDOP_CLOSE;
op->fd = fd;
if ((op->next = fa->__actions)) op->next->prev = op;
op->prev = 0;
fa->__actions = op;
return 0;
}
int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *fa, int srcfd, int fd) {
if (srcfd < 0 || fd < 0) return EBADF;
struct fdop *op = malloc(sizeof *op);
if (!op) return ENOMEM;
op->cmd = FDOP_DUP2;
op->srcfd = srcfd;
op->fd = fd;
if ((op->next = fa->__actions)) op->next->prev = op;
op->prev = 0;
fa->__actions = op;
return 0;
}
int posix_spawn_file_actions_addfchdir_np(posix_spawn_file_actions_t *fa, int fd) {
if (fd < 0) return EBADF;
struct fdop *op = malloc(sizeof *op);
if (!op) return ENOMEM;
op->cmd = FDOP_FCHDIR;
op->fd = fd;
if ((op->next = fa->__actions)) op->next->prev = op;
op->prev = 0;
fa->__actions = op;
return 0;
}
int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *restrict fa, int fd, const char *restrict path, int flags, mode_t mode) {
if (fd < 0) return EBADF;
struct fdop *op = malloc(sizeof *op + strlen(path) + 1);
if (!op) return ENOMEM;
op->cmd = FDOP_OPEN;
op->fd = fd;
op->oflag = flags;
op->mode = mode;
strcpy(op->path, path);
if ((op->next = fa->__actions)) op->next->prev = op;
op->prev = 0;
fa->__actions = op;
return 0;
}
int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *fa) {
struct fdop *op = fa->__actions, *next;
while (op) {
next = op->next;
free(op);
op = next;
}
return 0;
}
#if defined (__cplusplus)
}