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-rw-r--r--src/tls/s6tls_io_spawn.c105
1 files changed, 10 insertions, 95 deletions
diff --git a/src/tls/s6tls_io_spawn.c b/src/tls/s6tls_io_spawn.c
index e2d589a..8e26807 100644
--- a/src/tls/s6tls_io_spawn.c
+++ b/src/tls/s6tls_io_spawn.c
@@ -1,104 +1,19 @@
/* ISC license. */
-#include <skalibs/sysdeps.h>
-
-#include <skalibs/djbunix.h>
-
-#include "s6tls-internal.h"
-
-#ifdef SKALIBS_HASPOSIXSPAWN
-
-#include <errno.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <spawn.h>
-
-#include <skalibs/config.h>
#include <skalibs/posixplz.h>
+#include <skalibs/cspawn.h>
-pid_t s6tls_io_spawn (char const *const *argv, int const p[4][2])
-{
- pid_t pid ;
- posix_spawn_file_actions_t actions ;
- int e ;
- int nopath = !getenv("PATH") ;
-#ifdef SKALIBS_HASPOSIXSPAWNEARLYRETURN
- int eep[2] ;
- if (pipecoe(eep) == -1) return 0 ;
-#endif
- e = posix_spawn_file_actions_init(&actions) ;
- if (e) goto err ;
- e = posix_spawn_file_actions_addclose(&actions, p[0][1]) ;
- if (e) goto erractions ;
- e = posix_spawn_file_actions_addclose(&actions, p[1][0]) ;
- if (e) goto erractions ;
- e = posix_spawn_file_actions_addclose(&actions, p[2][0]) ;
- if (e) goto erractions ;
- if (p[3][0] >= 0)
- {
- e = posix_spawn_file_actions_adddup2(&actions, p[3][0], 0) ;
- if (e) goto erractions ;
- e = posix_spawn_file_actions_addclose(&actions, p[3][0]) ;
- if (e) goto erractions ;
- }
- if (p[3][1] >= 0)
- {
- e = posix_spawn_file_actions_adddup2(&actions, p[3][1], 1) ;
- if (e) goto erractions ;
- e = posix_spawn_file_actions_addclose(&actions, p[3][1]) ;
- if (e) goto erractions ;
- }
-
- if (nopath && (setenv("PATH", SKALIBS_DEFAULTPATH, 0) < 0)) { e = errno ; goto erractions ; }
- e = posix_spawnp(&pid, argv[0], &actions, 0, (char *const *)argv, environ) ;
- if (nopath) unsetenv("PATH") ;
- if (e) goto erractions ;
-
- posix_spawn_file_actions_destroy(&actions) ;
-#ifdef SKALIBS_HASPOSIXSPAWNEARLYRETURN
- return child_spawn_workaround(pid, eep) ;
-#else
- return pid ;
-#endif
-
- erractions:
- posix_spawn_file_actions_destroy(&actions) ;
- err:
-#ifdef SKALIBS_HASPOSIXSPAWNEARLYRETURN
- fd_close(eep[1]) ;
- fd_close(eep[0]) ;
-#endif
- errno = e ;
- return 0 ;
-}
-
-#else
-
-#include <string.h>
-
-#include <skalibs/strerr.h>
-#include <skalibs/exec.h>
+#include "s6tls-internal.h"
pid_t s6tls_io_spawn (char const *const *argv, int const p[4][2])
{
- pid_t pid = fork() ;
- if (pid == -1) return 0 ;
- if (!pid)
+ cspawn_fileaction fa[5] =
{
- size_t proglen = strlen(PROG) ;
- char newprog[proglen + 9] ;
- memcpy(newprog, PROG, proglen) ;
- memcpy(newprog, " (child)", 9) ;
- PROG = newprog ;
- fd_close(p[0][1]) ;
- fd_close(p[1][0]) ;
- fd_close(p[2][0]) ;
- if ((p[3][0] >= 0 && fd_move(0, p[3][0]) == -1)
- || (p[3][1] >= 0 && fd_move(1, p[3][1]) == -1))
- strerr_diefu1sys(111, "move network fds to stdin/stdout") ;
- xexec(argv) ;
- }
- return pid ;
+ [0] = { .type = CSPAWN_FA_CLOSE, .x = { .fd = p[0][1] } },
+ [1] = { .type = CSPAWN_FA_CLOSE, .x = { .fd = p[1][0] } },
+ [2] = { .type = CSPAWN_FA_CLOSE, .x = { .fd = p[2][1] } },
+ [3] = { .type = CSPAWN_FA_MOVE, .x = { .fd2 = { [0] = 0, [1] = p[3][0] } } },
+ [4] = { .type = CSPAWN_FA_MOVE, .x = { .fd2 = { [0] = 1, [1] = p[3][1] } } }
+ } ;
+ return cspawn(argv[0], argv, (char const *const *)environ, 0, fa, p[3][0] >= 0 ? 5 : 3) ;
}
-
-#endif