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-rw-r--r--src/shared/Makefile.am2
-rw-r--r--src/shared/cgroup-util.c1
-rw-r--r--src/shared/log.c1
-rw-r--r--src/shared/process-util.c176
-rw-r--r--src/shared/process-util.h46
-rw-r--r--src/shared/smack-util.c1
-rw-r--r--src/shared/util.c145
-rw-r--r--src/shared/util.h18
-rw-r--r--src/shared/virt.c1
9 files changed, 231 insertions, 160 deletions
diff --git a/src/shared/Makefile.am b/src/shared/Makefile.am
index ac40f48c07..9f2df41e70 100644
--- a/src/shared/Makefile.am
+++ b/src/shared/Makefile.am
@@ -19,6 +19,7 @@ libudev_shared_la_SOURCES=\
mkdir-label.c \
MurmurHash2.c \
path-util.c \
+ process-util.c \
selinux-util.c \
siphash24.c \
smack-util.c \
@@ -51,6 +52,7 @@ noinst_HEADERS = \
mkdir.h \
MurmurHash2.h \
path-util.h \
+ process-util.h \
selinux-util.h \
set.h \
siphash24.h \
diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index 2076eff4d2..326b75f763 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -25,6 +25,7 @@
#include "cgroup-util.h"
#include "set.h"
+#include "process-util.h"
#include "path-util.h"
int cg_enumerate_processes(const char *controller, const char *path, FILE **_f) {
diff --git a/src/shared/log.c b/src/shared/log.c
index d4df4dffd3..bcbf4a34bd 100644
--- a/src/shared/log.c
+++ b/src/shared/log.c
@@ -33,6 +33,7 @@
#include "macro.h"
#include "socket-util.h"
#include "time-util.h"
+#include "process-util.h"
#define SNDBUF_SIZE (8*1024*1024)
diff --git a/src/shared/process-util.c b/src/shared/process-util.c
new file mode 100644
index 0000000000..0c9d1e409c
--- /dev/null
+++ b/src/shared/process-util.c
@@ -0,0 +1,176 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <ctype.h>
+
+#include "process-util.h"
+#include "fileio.h"
+#include "util.h"
+#include "log.h"
+
+int get_process_comm(pid_t pid, char **name) {
+ const char *p;
+ int r;
+
+ assert(name);
+ assert(pid >= 0);
+
+ p = procfs_file_alloca(pid, "comm");
+
+ r = read_one_line_file(p, name);
+ if (r == -ENOENT)
+ return -ESRCH;
+
+ return r;
+}
+
+int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line) {
+ _cleanup_fclose_ FILE *f = NULL;
+ char *r = NULL, *k;
+ const char *p;
+ int c;
+
+ assert(line);
+ assert(pid >= 0);
+
+ p = procfs_file_alloca(pid, "cmdline");
+
+ f = fopen(p, "re");
+ if (!f)
+ return -errno;
+
+ if (max_length == 0) {
+ size_t len = 0, allocated = 0;
+
+ while ((c = getc(f)) != EOF) {
+
+ if (!GREEDY_REALLOC(r, allocated, len+2)) {
+ free(r);
+ return -ENOMEM;
+ }
+
+ r[len++] = isprint(c) ? c : ' ';
+ }
+
+ if (len > 0)
+ r[len-1] = 0;
+
+ } else {
+ bool space = false;
+ size_t left;
+
+ r = new(char, max_length);
+ if (!r)
+ return -ENOMEM;
+
+ k = r;
+ left = max_length;
+ while ((c = getc(f)) != EOF) {
+
+ if (isprint(c)) {
+ if (space) {
+ if (left <= 4)
+ break;
+
+ *(k++) = ' ';
+ left--;
+ space = false;
+ }
+
+ if (left <= 4)
+ break;
+
+ *(k++) = (char) c;
+ left--;
+ } else
+ space = true;
+ }
+
+ if (left <= 4) {
+ size_t n = MIN(left-1, 3U);
+ memcpy(k, "...", n);
+ k[n] = 0;
+ } else
+ *k = 0;
+ }
+
+ /* Kernel threads have no argv[] */
+ if (isempty(r)) {
+ _cleanup_free_ char *t = NULL;
+ int h;
+
+ free(r);
+
+ if (!comm_fallback)
+ return -ENOENT;
+
+ h = get_process_comm(pid, &t);
+ if (h < 0)
+ return h;
+
+ r = strjoin("[", t, "]", NULL);
+ if (!r)
+ return -ENOMEM;
+ }
+
+ *line = r;
+ return 0;
+}
+
+int get_process_environ(pid_t pid, char **env) {
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *outcome = NULL;
+ int c;
+ const char *p;
+ size_t allocated = 0, sz = 0;
+
+ assert(pid >= 0);
+ assert(env);
+
+ p = procfs_file_alloca(pid, "environ");
+
+ f = fopen(p, "re");
+ if (!f)
+ return -errno;
+
+ while ((c = fgetc(f)) != EOF) {
+ if (!GREEDY_REALLOC(outcome, allocated, sz + 5))
+ return -ENOMEM;
+
+ if (c == '\0')
+ outcome[sz++] = '\n';
+ else
+ sz += cescape_char(c, outcome + sz);
+ }
+
+ outcome[sz] = '\0';
+ *env = outcome;
+ outcome = NULL;
+
+ return 0;
+}
diff --git a/src/shared/process-util.h b/src/shared/process-util.h
new file mode 100644
index 0000000000..bb420ec06a
--- /dev/null
+++ b/src/shared/process-util.h
@@ -0,0 +1,46 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+#include <sys/types.h>
+#include <alloca.h>
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+
+#include "formats-util.h"
+
+#define procfs_file_alloca(pid, field) \
+ ({ \
+ pid_t _pid_ = (pid); \
+ const char *_r_; \
+ if (_pid_ == 0) { \
+ _r_ = ("/proc/self/" field); \
+ } else { \
+ _r_ = alloca(strlen("/proc/") + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \
+ sprintf((char*) _r_, "/proc/"PID_FMT"/" field, _pid_); \
+ } \
+ _r_; \
+ })
+
+int get_process_comm(pid_t pid, char **name);
+int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line);
+int get_process_environ(pid_t pid, char **environ);
diff --git a/src/shared/smack-util.c b/src/shared/smack-util.c
index f715fc1084..92477811aa 100644
--- a/src/shared/smack-util.c
+++ b/src/shared/smack-util.c
@@ -24,6 +24,7 @@
#endif
#include "util.h"
+#include "process-util.h"
#include "path-util.h"
#include "fileio.h"
#include "smack-util.h"
diff --git a/src/shared/util.c b/src/shared/util.c
index e70984d36e..d22ab8631f 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -69,6 +69,7 @@
#include "hashmap.h"
#include "fileio.h"
#include "virt.h"
+#include "process-util.h"
/* Put this test here for a lack of better place */
assert_cc(EAGAIN == EWOULDBLOCK);
@@ -127,7 +128,7 @@ char* endswith(const char *s, const char *postfix) {
return (char*) s + sl - pl;
}
-static size_t cescape_char(char c, char *buf) {
+size_t cescape_char(char c, char *buf) {
char * buf_old = buf;
switch (c) {
@@ -427,39 +428,6 @@ char *truncate_nl(char *s) {
return s;
}
-int get_process_environ(pid_t pid, char **env) {
- _cleanup_fclose_ FILE *f = NULL;
- _cleanup_free_ char *outcome = NULL;
- int c;
- const char *p;
- size_t allocated = 0, sz = 0;
-
- assert(pid >= 0);
- assert(env);
-
- p = procfs_file_alloca(pid, "environ");
-
- f = fopen(p, "re");
- if (!f)
- return -errno;
-
- while ((c = fgetc(f)) != EOF) {
- if (!GREEDY_REALLOC(outcome, allocated, sz + 5))
- return -ENOMEM;
-
- if (c == '\0')
- outcome[sz++] = '\n';
- else
- sz += cescape_char(c, outcome + sz);
- }
-
- outcome[sz] = '\0';
- *env = outcome;
- outcome = NULL;
-
- return 0;
-}
-
char *strnappend(const char *s, const char *suffix, size_t b) {
size_t a;
char *r;
@@ -541,115 +509,6 @@ int rmdir_parents(const char *path, const char *stop) {
return 0;
}
-int get_process_comm(pid_t pid, char **name) {
- const char *p;
- int r;
-
- assert(name);
- assert(pid >= 0);
-
- p = procfs_file_alloca(pid, "comm");
-
- r = read_one_line_file(p, name);
- if (r == -ENOENT)
- return -ESRCH;
-
- return r;
-}
-
-int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line) {
- _cleanup_fclose_ FILE *f = NULL;
- char *r = NULL, *k;
- const char *p;
- int c;
-
- assert(line);
- assert(pid >= 0);
-
- p = procfs_file_alloca(pid, "cmdline");
-
- f = fopen(p, "re");
- if (!f)
- return -errno;
-
- if (max_length == 0) {
- size_t len = 0, allocated = 0;
-
- while ((c = getc(f)) != EOF) {
-
- if (!GREEDY_REALLOC(r, allocated, len+2)) {
- free(r);
- return -ENOMEM;
- }
-
- r[len++] = isprint(c) ? c : ' ';
- }
-
- if (len > 0)
- r[len-1] = 0;
-
- } else {
- bool space = false;
- size_t left;
-
- r = new(char, max_length);
- if (!r)
- return -ENOMEM;
-
- k = r;
- left = max_length;
- while ((c = getc(f)) != EOF) {
-
- if (isprint(c)) {
- if (space) {
- if (left <= 4)
- break;
-
- *(k++) = ' ';
- left--;
- space = false;
- }
-
- if (left <= 4)
- break;
-
- *(k++) = (char) c;
- left--;
- } else
- space = true;
- }
-
- if (left <= 4) {
- size_t n = MIN(left-1, 3U);
- memcpy(k, "...", n);
- k[n] = 0;
- } else
- *k = 0;
- }
-
- /* Kernel threads have no argv[] */
- if (isempty(r)) {
- _cleanup_free_ char *t = NULL;
- int h;
-
- free(r);
-
- if (!comm_fallback)
- return -ENOENT;
-
- h = get_process_comm(pid, &t);
- if (h < 0)
- return h;
-
- r = strjoin("[", t, "]", NULL);
- if (!r)
- return -ENOMEM;
- }
-
- *line = r;
- return 0;
-}
-
char hexchar(int x) {
static const char table[16] = "0123456789abcdef";
diff --git a/src/shared/util.h b/src/shared/util.h
index 4808f04efe..0f97873d8b 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -149,14 +149,11 @@ char *truncate_nl(char *s);
int rmdir_parents(const char *path, const char *stop);
-int get_process_comm(pid_t pid, char **name);
-int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line);
-int get_process_environ(pid_t pid, char **environ);
-
char hexchar(int x) _const_;
char octchar(int x) _const_;
char *cescape(const char *s);
+size_t cescape_char(char c, char *buf);
char *xescape(const char *s, const char *bad);
bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) _pure_;
@@ -397,19 +394,6 @@ int unlink_noerrno(const char *path);
_d_; \
})
-#define procfs_file_alloca(pid, field) \
- ({ \
- pid_t _pid_ = (pid); \
- const char *_r_; \
- if (_pid_ == 0) { \
- _r_ = ("/proc/self/" field); \
- } else { \
- _r_ = alloca(strlen("/proc/") + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \
- sprintf((char*) _r_, "/proc/"PID_FMT"/" field, _pid_); \
- } \
- _r_; \
- })
-
static inline void qsort_safe(void *base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *)) {
if (nmemb) {
diff --git a/src/shared/virt.c b/src/shared/virt.c
index 358b4403d2..e39ad963c6 100644
--- a/src/shared/virt.c
+++ b/src/shared/virt.c
@@ -22,6 +22,7 @@
#include <unistd.h>
#include "util.h"
+#include "process-util.h"
#include "virt.h"
#include "fileio.h"
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-03 20:42:20 +0000