summaryrefslogtreecommitdiff
path: root/src/basic/util.c
Commit message (Collapse)AuthorAge
* tree-wide: remove Lennart's copyright linesLennart Poettering2018-08-24
| | | | | | | | | | | These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
* tree-wide: drop 'This file is part of systemd' blurbLennart Poettering2018-08-24
| | | | | | | | | | | | | | | | This part of the copyright blurb stems from the GPL use recommendations: https://www.gnu.org/licenses/gpl-howto.en.html The concept appears to originate in times where version control was per file, instead of per tree, and was a way to glue the files together. Ultimately, we nowadays don't live in that world anymore, and this information is entirely useless anyway, as people are very welcome to copy these files into any projects they like, and they shouldn't have to change bits that are part of our copyright header for that. hence, let's just get rid of this old cruft, and shorten our codebase a bit.
* fileio: accept FILE* in addition to path in parse_env_file()Lennart Poettering2018-08-24
| | | | | | | Most our other parsing functions do this, let's do this here too, internally we accept that anyway. Also, the closely related load_env_file() and load_env_file_pairs() also do this, so let's be systematic.
* util: add debug logging to system_tasks_max()Lennart Poettering2018-08-24
| | | | | We should always do debug logging when we eat up error conditions. Let's do so here too.
* util: fix physical_memory() to work correctly on cgroupsv2Lennart Poettering2018-08-24
| | | | | | | Let's look into the right cgroupsv2 attribute. Also, while we are at it, add debug logging for all error conditions we eat up silently otherwise.
* tree-wide: drop license boilerplateZbigniew Jędrzejewski-Szmek2018-08-24
| | | | | | | | | | Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
* util: check for overflows in xbsearch_r()Lennart Poettering2018-08-24
|
* Prep v238: Uncomment now needed headers and unmask now needed functions in ↵Sven Eden2018-06-05
| | | | src/basic (1/6)
* basic: split out update_reboot_parameter_and_warn() into its own .c/.h filesLennart Poettering2018-05-30
| | | | | | This is primarily preparation for a follow-up commit that adds a common implementation of the other side of the reboot parameter file, i.e. the code that reads the file and issues reboot() for it.
* util: rework system_tasks_max() to make use of procfs_tasks_max()Lennart Poettering2018-05-30
| | | | Let's use our new code.
* util: introduce more accurate definitions of TASKS_MAXLennart Poettering2018-05-30
| | | | | | | The maximum number of processes a tasks on the system is usually lower than what pid_t would allow, and is compiled into the kernel (and documented in proc(5)). Let's add proper defines for that, so that we can adjust the pid_max sysctl without fearing invalid accesses.
* util: minor tweaks to disable_core_dumps()Lennart Poettering2018-05-30
| | | | | | | | | First, let's rename it to disable_coredumps(), as in the rest of our codebase we spell it "coredump" rather than "core_dump", so let's stick to that. However, also log about failures to turn off core dumpling on LOG_DEBUG, because debug logging is always a good idea.
* tree-wide: introduce disable_core_dumps helper and port existing usersJan Klötzke2018-05-30
| | | | | | Changes the core_pattern to prevent any core dumps by the kernel. Does nothing if we're in a container environment as this is system wide setting.
* condition: extend ConditionKernelVersion= with relative version checksLennart Poettering2018-05-30
| | | | | Now that we have str_verscmp() in our source tree anyway, let's make it generic and reuse it for ConditionKernelVersion=.
* basic: split out blockdev-util.[ch] from util.hLennart Poettering2018-05-30
| | | | With three functions it makes sense to split this out now.
* process-util: move fork_agent() to process-util.[ch]Lennart Poettering2018-05-30
| | | | | | It's a relatively small wrapper around safe_fork() now, hence let's move it over, and make its signature even more alike. Also, set a different process name for the polkit and askpw agents.
* tree-wide: introduce new safe_fork() helper and port everything overLennart Poettering2018-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a new safe_fork() wrapper around fork() and makes use of it everywhere. The new wrapper does a couple of things we previously did manually and separately in a safer, more correct and automatic way: 1. Optionally resets signal handlers/mask in the child 2. Sets a name on all processes we fork off right after forking off (and the patch assigns useful names for all processes we fork off now, following a systematic naming scheme: always enclosed in () – in order to indicate that these are not proper, exec()ed processes, but only forked off children, and if the process is long-running with only our own code, without execve()'ing something else, it gets am "sd-" prefix.) 3. Optionally closes all file descriptors in the child 4. Optionally sets a PR_SET_DEATHSIG to SIGTERM in the child, in a safe way so that the parent dying before this happens being handled safely. 5. Optionally reopens the logs 6. Optionally connects stdin/stdout/stderr to /dev/null 7. Debug logs about the forked off processes.
* Prep v236 : Add missing SPDX-License-Identifier (2/9) src/basicSven Eden2018-03-26
|
* util-lib: simplify kexec_loaded()Zbigniew Jędrzejewski-Szmek2017-10-15
|
* Apply updates from upstreamSven Eden2017-12-07
|
* tree-wide: use IN_SET where possibleAndreas Rammhold2017-09-29
| | | | | In addition to the changes from #6933 this handles cases that could be matched with the included cocci file.
* v235: Added missing updatesSven Eden2017-11-19
|
* util: make get_block_device() availableFranck Bui2017-09-25
|
* Prep v235: Apply upstream fixes (3/10) [src/basic]Sven Eden2017-08-14
|
* basic/path-util: allow flags for path_equal_or_files_sameZbigniew Jędrzejewski-Szmek2017-07-25
| | | | | No functional change, just a new parameters and the tests that AT_SYMLINK_NOFOLLOW works as expected.
* basic/util: move execute_directory() to separate fileZbigniew Jędrzejewski-Szmek2017-07-17
| | | | It's a fairly specialized function. Let's make new files for it and the tests.
* tree-wide: replace all readdir cycles with FOREACH_DIRENT{,_ALL} (#4853)Reverend Homer2017-07-17
|
* Two small cleanupsZbigniew Jędrzejewski-Szmek2017-07-17
|
* tree-wide: drop NULL sentinel from strjoinZbigniew Jędrzejewski-Szmek2017-07-17
| | | | | | | | | | | | | This makes strjoin and strjoina more similar and avoids the useless final argument. spatch -I . -I ./src -I ./src/basic -I ./src/basic -I ./src/shared -I ./src/shared -I ./src/network -I ./src/locale -I ./src/login -I ./src/journal -I ./src/journal -I ./src/timedate -I ./src/timesync -I ./src/nspawn -I ./src/resolve -I ./src/resolve -I ./src/elogind -I ./src/core -I ./src/core -I ./src/libudev -I ./src/udev -I ./src/udev/net -I ./src/udev -I ./src/libelogind/sd-bus -I ./src/libelogind/sd-event -I ./src/libelogind/sd-login -I ./src/libelogind/sd-netlink -I ./src/libelogind/sd-network -I ./src/libelogind/sd-hwdb -I ./src/libelogind/sd-device -I ./src/libelogind/sd-id128 -I ./src/libelogind-network --sp-file coccinelle/strjoin.cocci --in-place $(git ls-files src/*.c) git grep -e '\bstrjoin\b.*NULL' -l|xargs sed -i -r 's/strjoin\((.*), NULL\)/strjoin(\1)/' This might have missed a few cases (spatch has a really hard time dealing with _cleanup_ macros), but that's no big issue, they can always be fixed later.
* tree-wide: remove consecutive duplicate words in commentsStefan Schweter2017-07-05
|
* Prep v231: Apply missing fixes from upstream (1/6) src/basicSven Eden2017-06-16
|
* Prep v230: Add utmp support to make wall message to work properly.Sven Eden2017-06-16
|
* Prep v230: Apply missing upstream fixes and updates (2/8) src/basic.Sven Eden2017-06-16
|
* tree-wide: rename hidden_file to hidden_or_backup_file and optimizeZbigniew Jędrzejewski-Szmek2017-06-16
| | | | | | | | | | | In standard linux parlance, "hidden" usually means that the file name starts with ".", and nothing else. Rename the function to convey what the function does better to casual readers. Stop exposing hidden_file_allow_backup which is rather ugly and rewrite hidden_file to extract the suffix first. Note that hidden_file_allow_backup excluded files with "~" at the end, which is quite confusing. Let's get rid of it before it gets used in the wrong place.
* basic/util: check return value of dup2 in fork_agent()Zbigniew Jędrzejewski-Szmek2017-06-16
| | | | CID #1304689.
* core: be more paranoid when mixing umask and fopen()Lennart Poettering2017-06-16
| | | | | Let's be extra careful with the umask when we use simple fopen(), as this creates files with 0777 by default.
* Prep v229: Add missing fixes from upstream [1/6] src/basicSven Eden2017-05-17
|
* tree-wide: check if errno is greater than zero (2)Zbigniew Jędrzejewski-Szmek2017-05-17
| | | | | Compare errno with zero in a way that tells gcc that (if the condition is true) errno is positive.
* Prep v228: With most functions split out, clean up the enormous includes ↵Sven Eden2017-04-26
| | | | list in util.c
* Prep v228: Add remaining updates from upstream (2/3)Sven Eden2017-04-26
| | | | | Apply remaining fixes and the performed move of utility functions into their own foo-util.[hc] files on libbasic.
* util: always enforce O_NOCTTY and O_CLOEXEC in openpt_in_namespace()Lennart Poettering2017-04-26
| | | | | | | The child process is shortliving, hence always set O_NOCTTY so that the tty doesn't quickly become controlling TTY and then gives it up again. Also set O_CLOEXEC, because it's cleaner, and doesn't affect the parent anyway.
* [2/5] Apply missing fixes from upstreamSven Eden2017-03-29
|
* util: clean-ups to enum parsersLennart Poettering2017-03-29
| | | | | | | | | | | | Never log when we fail due to OOM when translating enums, let the caller do that. Translating basic types like enums should be something where the caller logs, not the translatior functions. Return -1 when NULL is passed to all enum parser functions. The non-fallback versions of the enum translator calls already handle NULL as failure, instead of hitting an assert, and we should do this here, too.
* util: minor cleanups for loop_read() and friendsLennart Poettering2017-03-29
| | | | | | | | When 0 bytes are to be written, make sure to go into read() at least once, in order to validate the parameters, such as the passed fd. Return error on huge values, add a couple of asserts and casts where appropriate.
* Cleaned up more unneeded functions and types in:Sven Eden2017-03-14
| | | | | | | | | | | | | | | | | | | | - src/basic/ioprio.h - removed - src/basic/ring.h - removed - src/basic/capability.[hc] - cleaned - src/basic/cgroup-util.[hc] - cleaned - src/basic/hostname-util.[hc] - cleaned - src/basic/path-util.[hc] - cleaned - src/basic/socket-util.h - cleaned - src/basic/strv.[hc] - cleaned - src/basic/time-util.[hc] - cleaned - src/basic/unit-name.[hc] - cleaned - src/basic/util.[hc] - cleaned - src/libelogind/sd-bus/bus-introspect.c - cleaned - src/login/loginctl.c - cleaned - src/login/logind-dbus.c - cleaned - src/login/logind.h - cleaned - src/shared/conf-parser.[hc] - cleaned
* Add poweroff, suspend etc. loginctl commandsSven Eden2017-03-14
| | | | | | | * src/login/loginctl.c: Add poweroff, reboot, suspend, hibernate, and hybrid-sleep commands. Normally these are handled by systemctl but since elogind is targeted at the no-systemd use case, we incorporate them here.
* Handle suspend, shutdown, reboot, etc within elogindSven Eden2017-03-14
| | | | | | | | | | | | | | | | | Since we are catching the keys, we might as well just do suspend/reboot/etc handling here. * configure.ac: Get paths of halt and reboot. * Makefile.am (systemsleepdir, systemshutdowndir): New variables. Look in them for hooks to run. * src/login/logind-action.c: Inline the salient bits from systemd's sleep/sleep.c here. * src/login/logind-dbus.c (execute_shutdown_or_sleep): Call our own shutdown_or_sleep helper instead of invoking a systemd method. * src/login/logind-action.h: Declare shutdown_or_sleep.
* Prep v226: Apply missing fixes and changes to src/basicSven Eden2017-03-14
|
* util: add new uid_is_valid() callLennart Poettering2017-03-14
| | | | | | This simply factors out the uid validation checks from parse_uid() and uses them everywhere. This simply verifies that the passed UID is neither 64bit -1 nor 32bit -1.
* extract_first_word: Refactor EXTRACT_DONT_COALESCE_SEPARATORS handlingFilipe Brandenburger2017-03-14
| | | | | | | | | | | | | | Refactor allocation of the result string to the top, since it is currently done in both branches of the condition. Remove unreachable code checking for EXTRACT_DONT_COALESCE_SEPARATORS when state == SEPARATOR (the only place where SEPARATOR is assigned to state follows a check for EXTRACT_DONT_COALESCE_SEPARATORS that jumps to the end of the function.) Tested by running test-util successfully. Follow up to: 206644aedeb8859801051ac170ec562c6a113a79
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-06 21:14:01 +0000