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authorMarc-André Lureau <marcandre.lureau@redhat.com>2022-03-23 19:57:41 +0400
committerPaolo Bonzini <pbonzini@redhat.com>2022-04-06 14:31:55 +0200
commitfcc41961c936d312c5a8a788aea34e41a6d09a18 (patch)
treeb5be31b6ecc79f2b01148f47c0e90ba4fdf63790
parente9c4e0a8e54008bd83459777c8b8f5a38ff6fea2 (diff)
qga: remove explicit environ argument from exec/spawn
Environment is implicitly inherited from the current process "environ" variable for execl() or g_spawn_sync(), no need to be explicit about it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-31-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--meson.build2
-rw-r--r--qga/commands-posix.c24
2 files changed, 7 insertions, 19 deletions
diff --git a/meson.build b/meson.build
index 08f8183a66..a0b6de255c 100644
--- a/meson.build
+++ b/meson.build
@@ -1654,8 +1654,6 @@ config_host_data.set('CONFIG_BYTESWAP_H',
cc.has_header_symbol('byteswap.h', 'bswap_32'))
config_host_data.set('CONFIG_EPOLL_CREATE1',
cc.has_header_symbol('sys/epoll.h', 'epoll_create1'))
-config_host_data.set('CONFIG_HAS_ENVIRON',
- cc.has_header_symbol('unistd.h', 'environ', prefix: gnu_source_prefix))
config_host_data.set('CONFIG_FALLOCATE_PUNCH_HOLE',
cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_PUNCH_HOLE') and
cc.has_header_symbol('linux/falloc.h', 'FALLOC_FL_KEEP_SIZE'))
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 1e7b4656ed..84a3b912be 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -32,15 +32,6 @@
#include <utmpx.h>
#endif
-#ifndef CONFIG_HAS_ENVIRON
-#ifdef __APPLE__
-#include <crt_externs.h>
-#define environ (*_NSGetEnviron())
-#else
-extern char **environ;
-#endif
-#endif
-
#if defined(__linux__)
#include <mntent.h>
#include <linux/fs.h>
@@ -109,8 +100,8 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
reopen_fd_to_null(1);
reopen_fd_to_null(2);
- execle("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0",
- "hypervisor initiated shutdown", (char *)NULL, environ);
+ execl("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0",
+ "hypervisor initiated shutdown", (char *)NULL);
_exit(EXIT_FAILURE);
} else if (pid < 0) {
error_setg_errno(errp, errno, "failed to create child process");
@@ -193,8 +184,7 @@ void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
/* Use '/sbin/hwclock -w' to set RTC from the system time,
* or '/sbin/hwclock -s' to set the system time from RTC. */
- execle(hwclock_path, "hwclock", has_time ? "-w" : "-s",
- NULL, environ);
+ execl(hwclock_path, "hwclock", has_time ? "-w" : "-s", NULL);
_exit(EXIT_FAILURE);
} else if (pid < 0) {
error_setg_errno(errp, errno, "failed to create child process");
@@ -1560,7 +1550,7 @@ static void execute_fsfreeze_hook(FsfreezeHookArg arg, Error **errp)
reopen_fd_to_null(1);
reopen_fd_to_null(2);
- execle(hook, hook, arg_str, NULL, environ);
+ execl(hook, hook, arg_str, NULL);
_exit(EXIT_FAILURE);
} else if (pid < 0) {
error_setg_errno(errp, errno, "failed to create child process");
@@ -1874,7 +1864,7 @@ static int run_process_child(const char *command[], Error **errp)
spawn_flag = G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL |
G_SPAWN_STDERR_TO_DEV_NULL;
- success = g_spawn_sync(NULL, (char **)command, environ, spawn_flag,
+ success = g_spawn_sync(NULL, (char **)command, NULL, spawn_flag,
NULL, NULL, NULL, NULL,
&exit_status, &g_err);
@@ -2555,9 +2545,9 @@ void qmp_guest_set_user_password(const char *username,
reopen_fd_to_null(2);
if (crypted) {
- execle(passwd_path, "chpasswd", "-e", NULL, environ);
+ execl(passwd_path, "chpasswd", "-e", NULL);
} else {
- execle(passwd_path, "chpasswd", NULL, environ);
+ execl(passwd_path, "chpasswd", NULL);
}
_exit(EXIT_FAILURE);
} else if (pid < 0) {