From ad118bda159d3f9c27c5a15ace54cf808a6e8788 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 6 Jul 2015 19:27:20 -0400 Subject: tree-wide: fix write_string_file() user that should not create files The latest consolidation cleanup of write_string_file() revealed some users of that helper which should have used write_string_file_no_create() in the past but didn't. Basically, all existing users that write to files in /sys and /proc should not expect to write to a file which is not yet existant. --- src/basic/smack-util.c | 2 +- src/binfmt/binfmt.c | 2 +- src/core/execute.c | 2 +- src/nspawn/nspawn.c | 6 +++--- src/shared/sysctl-util.c | 2 +- src/udev/udevd.c | 4 ++-- src/vconsole/vconsole-setup.c | 4 ++-- 7 files changed, 11 insertions(+), 11 deletions(-) (limited to 'src') diff --git a/src/basic/smack-util.c b/src/basic/smack-util.c index 0c3697b61b..047aa294f4 100644 --- a/src/basic/smack-util.c +++ b/src/basic/smack-util.c @@ -139,7 +139,7 @@ int mac_smack_apply_pid(pid_t pid, const char *label) { return 0; p = procfs_file_alloca(pid, "attr/current"); - r = write_string_file(p, label, WRITE_STRING_FILE_CREATE); + r = write_string_file(p, label, 0); if (r < 0) return r; #endif diff --git a/src/binfmt/binfmt.c b/src/binfmt/binfmt.c index 24eb410571..1e216f52bd 100644 --- a/src/binfmt/binfmt.c +++ b/src/binfmt/binfmt.c @@ -191,7 +191,7 @@ int main(int argc, char *argv[]) { } /* Flush out all rules */ - write_string_file("/proc/sys/fs/binfmt_misc/status", "-1", WRITE_STRING_FILE_CREATE); + write_string_file("/proc/sys/fs/binfmt_misc/status", "-1", 0); STRV_FOREACH(f, files) { k = apply_file(*f, true); diff --git a/src/core/execute.c b/src/core/execute.c index 61e7304dc7..21721dc240 100644 --- a/src/core/execute.c +++ b/src/core/execute.c @@ -1446,7 +1446,7 @@ static int exec_child( * shouldn't trip up over that. */ sprintf(t, "%i", context->oom_score_adjust); - r = write_string_file("/proc/self/oom_score_adj", t, WRITE_STRING_FILE_CREATE); + r = write_string_file("/proc/self/oom_score_adj", t, 0); if (r == -EPERM || r == -EACCES) { log_open(); log_unit_debug_errno(unit, r, "Failed to adjust OOM setting, assuming containerized execution, ignoring: %m"); diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c index c7f4d02855..d749eb49b6 100644 --- a/src/nspawn/nspawn.c +++ b/src/nspawn/nspawn.c @@ -2508,7 +2508,7 @@ static int reset_audit_loginuid(void) { if (streq(p, "4294967295")) return 0; - r = write_string_file("/proc/self/loginuid", "4294967295", WRITE_STRING_FILE_CREATE); + r = write_string_file("/proc/self/loginuid", "4294967295", 0); if (r < 0) { log_error_errno(r, "Failed to reset audit login UID. This probably means that your kernel is too\n" @@ -4448,13 +4448,13 @@ static int setup_uid_map(pid_t pid) { xsprintf(uid_map, "/proc/" PID_FMT "/uid_map", pid); xsprintf(line, UID_FMT " " UID_FMT " " UID_FMT "\n", 0, arg_uid_shift, arg_uid_range); - r = write_string_file(uid_map, line, WRITE_STRING_FILE_CREATE); + r = write_string_file(uid_map, line, 0); if (r < 0) return log_error_errno(r, "Failed to write UID map: %m"); /* We always assign the same UID and GID ranges */ xsprintf(uid_map, "/proc/" PID_FMT "/gid_map", pid); - r = write_string_file(uid_map, line, WRITE_STRING_FILE_CREATE); + r = write_string_file(uid_map, line, 0); if (r < 0) return log_error_errno(r, "Failed to write GID map: %m"); diff --git a/src/shared/sysctl-util.c b/src/shared/sysctl-util.c index 232a005054..1de0b94fd5 100644 --- a/src/shared/sysctl-util.c +++ b/src/shared/sysctl-util.c @@ -66,7 +66,7 @@ int sysctl_write(const char *property, const char *value) { log_debug("Setting '%s' to '%s'", property, value); p = strjoina("/proc/sys/", property); - return write_string_file(p, value, WRITE_STRING_FILE_CREATE); + return write_string_file(p, value, 0); } int sysctl_read(const char *property, char **content) { diff --git a/src/udev/udevd.c b/src/udev/udevd.c index 8a31089c0c..0661f7be00 100644 --- a/src/udev/udevd.c +++ b/src/udev/udevd.c @@ -398,7 +398,7 @@ static void worker_spawn(Manager *manager, struct event *event) { prctl(PR_SET_PDEATHSIG, SIGTERM); /* reset OOM score, we only protect the main daemon */ - write_string_file("/proc/self/oom_score_adj", "0", WRITE_STRING_FILE_CREATE); + write_string_file("/proc/self/oom_score_adj", "0", 0); for (;;) { struct udev_event *udev_event; @@ -1747,7 +1747,7 @@ int main(int argc, char *argv[]) { setsid(); - write_string_file("/proc/self/oom_score_adj", "-1000", WRITE_STRING_FILE_CREATE); + write_string_file("/proc/self/oom_score_adj", "-1000", 0); } r = run(fd_ctrl, fd_uevent, cgroup); diff --git a/src/vconsole/vconsole-setup.c b/src/vconsole/vconsole-setup.c index 4b21175611..7bdc158ad7 100644 --- a/src/vconsole/vconsole-setup.c +++ b/src/vconsole/vconsole-setup.c @@ -56,7 +56,7 @@ static int disable_utf8(int fd) { if (k < 0) r = k; - k = write_string_file("/sys/module/vt/parameters/default_utf8", "0", WRITE_STRING_FILE_CREATE); + k = write_string_file("/sys/module/vt/parameters/default_utf8", "0", 0); if (k < 0) r = k; @@ -89,7 +89,7 @@ static int enable_utf8(int fd) { if (k < 0) r = k; - k = write_string_file("/sys/module/vt/parameters/default_utf8", "1", WRITE_STRING_FILE_CREATE); + k = write_string_file("/sys/module/vt/parameters/default_utf8", "1", 0); if (k < 0) r = k; -- cgit v1.2.3-54-g00ecf