summaryrefslogtreecommitdiff
path: root/src/libudev
diff options
context:
space:
mode:
Diffstat (limited to 'src/libudev')
-rw-r--r--src/libudev/Makefile.am2
-rw-r--r--src/libudev/fileio.c139
-rw-r--r--src/libudev/fileio.h27
-rw-r--r--src/libudev/util.c137
-rw-r--r--src/libudev/util.h44
5 files changed, 272 insertions, 77 deletions
diff --git a/src/libudev/Makefile.am b/src/libudev/Makefile.am
index a588080d12..286dc4b62a 100644
--- a/src/libudev/Makefile.am
+++ b/src/libudev/Makefile.am
@@ -37,6 +37,7 @@ libudev_la_SOURCES =\
conf-files.c \
device-nodes.c \
exit-status.c \
+ fileio.c \
hashmap.c \
log.c \
MurmurHash2.c \
@@ -56,6 +57,7 @@ noinst_HEADERS = \
def.h \
device-nodes.h \
exit-status.h \
+ fileio.h \
hashmap.h \
ioprio.h \
log.h \
diff --git a/src/libudev/fileio.c b/src/libudev/fileio.c
new file mode 100644
index 0000000000..8eb834dcd0
--- /dev/null
+++ b/src/libudev/fileio.c
@@ -0,0 +1,139 @@
+/***
+ This file is part of eudev, forked from 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 <unistd.h>
+#include <sys/sendfile.h>
+#include "fileio.h"
+#include "util.h"
+#include "strv.h"
+#include "utf8.h"
+#include "ctype.h"
+
+int write_string_to_file(FILE *f, const char *line) {
+ errno = 0;
+ fputs(line, f);
+ if (!endswith(line, "\n"))
+ fputc('\n', f);
+
+ fflush(f);
+
+ if (ferror(f))
+ return errno ? -errno : -EIO;
+
+ return 0;
+}
+
+int write_string_file(const char *fn, const char *line) {
+ _cleanup_fclose_ FILE *f = NULL;
+
+ assert(fn);
+ assert(line);
+
+ f = fopen(fn, "we");
+ if (!f)
+ return -errno;
+
+ return write_string_to_file(f, line);
+}
+int read_one_line_file(const char *fn, char **line) {
+ _cleanup_fclose_ FILE *f = NULL;
+ char t[LINE_MAX], *c;
+
+ assert(fn);
+ assert(line);
+
+ f = fopen(fn, "re");
+ if (!f)
+ return -errno;
+
+ if (!fgets(t, sizeof(t), f)) {
+
+ if (ferror(f))
+ return errno ? -errno : -EIO;
+
+ t[0] = 0;
+ }
+
+ c = strdup(t);
+ if (!c)
+ return -ENOMEM;
+ truncate_nl(c);
+
+ *line = c;
+ return 0;
+}
+
+int read_full_file(const char *fn, char **contents, size_t *size) {
+ _cleanup_fclose_ FILE *f = NULL;
+ size_t n, l;
+ _cleanup_free_ char *buf = NULL;
+ struct stat st;
+
+ assert(fn);
+ assert(contents);
+
+ f = fopen(fn, "re");
+ if (!f)
+ return -errno;
+
+ if (fstat(fileno(f), &st) < 0)
+ return -errno;
+
+ /* Safety check */
+ if (st.st_size > 4*1024*1024)
+ return -E2BIG;
+
+ n = st.st_size > 0 ? st.st_size : LINE_MAX;
+ l = 0;
+
+ for (;;) {
+ char *t;
+ size_t k;
+
+ t = realloc(buf, n+1);
+ if (!t)
+ return -ENOMEM;
+
+ buf = t;
+ k = fread(buf + l, 1, n - l, f);
+
+ if (k <= 0) {
+ if (ferror(f))
+ return -errno;
+
+ break;
+ }
+
+ l += k;
+ n *= 2;
+
+ /* Safety check */
+ if (n > 4*1024*1024)
+ return -E2BIG;
+ }
+
+ buf[l] = 0;
+ *contents = buf;
+ buf = NULL; /* do not free */
+
+ if (size)
+ *size = l;
+
+ return 0;
+}
diff --git a/src/libudev/fileio.h b/src/libudev/fileio.h
new file mode 100644
index 0000000000..c7997c58a2
--- /dev/null
+++ b/src/libudev/fileio.h
@@ -0,0 +1,27 @@
+/***
+ This file is part of eudev, forked from 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 <stddef.h>
+#include <stdio.h>
+
+#include "macro.h"
+
+int write_string_to_file(FILE *f, const char *line);
+int write_string_file(const char *fn, const char *line);
+int read_one_line_file(const char *fn, char **line);
+int read_full_file(const char *fn, char **contents, size_t *size);
diff --git a/src/libudev/util.c b/src/libudev/util.c
index 58377d548f..98be5307f6 100644
--- a/src/libudev/util.c
+++ b/src/libudev/util.c
@@ -69,6 +69,7 @@
#include "path-util.h"
#include "exit-status.h"
#include "hashmap.h"
+#include "fileio.h"
int saved_argc = 0;
char **saved_argv = NULL;
@@ -254,23 +255,6 @@ char* endswith(const char *s, const char *postfix) {
return (char*) s + sl - pl;
}
-char* startswith(const char *s, const char *prefix) {
- const char *a, *b;
-
- assert(s);
- assert(prefix);
-
- a = s, b = prefix;
- for (;;) {
- if (*b == 0)
- return (char*) a;
- if (*a != *b)
- return NULL;
-
- a++, b++;
- }
-}
-
int close_nointr(int fd) {
int r;
@@ -449,59 +433,6 @@ char *split_quoted(const char *c, size_t *l, char **state) {
return (char*) current;
}
-int write_one_line_file(const char *fn, const char *line) {
- _cleanup_fclose_ FILE *f = NULL;
-
- assert(fn);
- assert(line);
-
- f = fopen(fn, "we");
- if (!f)
- return -errno;
-
- errno = 0;
- if (fputs(line, f) < 0)
- return errno ? -errno : -EIO;
-
- if (!endswith(line, "\n"))
- fputc('\n', f);
-
- fflush(f);
-
- if (ferror(f))
- return errno ? -errno : -EIO;
-
- return 0;
-}
-
-int read_one_line_file(const char *fn, char **line) {
- _cleanup_fclose_ FILE *f = NULL;
- char t[LINE_MAX], *c;
-
- assert(fn);
- assert(line);
-
- f = fopen(fn, "re");
- if (!f)
- return -errno;
-
- if (!fgets(t, sizeof(t), f)) {
-
- if (ferror(f))
- return errno ? -errno : -EIO;
-
- t[0] = 0;
- }
-
- c = strdup(t);
- if (!c)
- return -ENOMEM;
- truncate_nl(c);
-
- *line = c;
- return 0;
-}
-
char *truncate_nl(char *s) {
assert(s);
@@ -794,6 +725,19 @@ bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) {
return endswith(de->d_name, suffix);
}
+bool nulstr_contains(const char*nulstr, const char *needle) {
+ const char *i;
+
+ if (!nulstr)
+ return false;
+
+ NULSTR_FOREACH(i, nulstr)
+ if (streq(i, needle))
+ return true;
+
+ return false;
+}
+
int execute_command(const char *command, char *const argv[])
{
@@ -1161,3 +1105,56 @@ void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
}
return NULL;
}
+
+int proc_cmdline(char **ret) {
+ int r;
+
+ /* disable containers for now
+ if (detect_container(NULL) > 0) {
+ char *buf, *p;
+ size_t sz = 0;
+
+ r = read_full_file("/proc/1/cmdline", &buf, &sz);
+ if (r < 0)
+ return r;
+
+ for (p = buf; p + 1 < buf + sz; p++)
+ if (*p == 0)
+ *p = ' ';
+
+ *p = 0;
+ *ret = buf;
+ return 1;
+ }
+ */
+
+ r = read_one_line_file("/proc/cmdline", ret);
+ if (r < 0)
+ return r;
+
+ return 1;
+}
+
+int getpeercred(int fd, struct ucred *ucred) {
+ socklen_t n = sizeof(struct ucred);
+ struct ucred u;
+ int r;
+
+ assert(fd >= 0);
+ assert(ucred);
+
+ r = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &u, &n);
+ if (r < 0)
+ return -errno;
+
+ if (n != sizeof(struct ucred))
+ return -EIO;
+
+ /* Check if the data is actually useful and not suppressed due
+ * to namespacing issues */
+ if (u.pid <= 0)
+ return -ENODATA;
+
+ *ucred = u;
+ return 0;
+}
diff --git a/src/libudev/util.h b/src/libudev/util.h
index 22f48b44ad..50e6a44af5 100644
--- a/src/libudev/util.h
+++ b/src/libudev/util.h
@@ -21,6 +21,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <string.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>
@@ -30,6 +31,7 @@
#include <dirent.h>
#include <stddef.h>
#include <unistd.h>
+#include <sys/socket.h>
#include "macro.h"
@@ -69,9 +71,12 @@ union dirent_storage {
/* What is interpreted as whitespace? */
#define WHITESPACE " \t\n\r"
-#define NEWLINE "\n\r"
-#define QUOTES "\"\'"
-#define COMMENTS "#;"
+#define NEWLINE "\n\r"
+#define QUOTES "\"\'"
+#define COMMENTS "#;"
+#define GLOB_CHARS "*?["
+
+#define FORMAT_BYTES_MAX 8
#define ANSI_HIGHLIGHT_ON "\x1B[1;39m"
#define ANSI_RED_ON "\x1B[31m"
@@ -79,6 +84,7 @@ union dirent_storage {
#define ANSI_GREEN_ON "\x1B[32m"
#define ANSI_HIGHLIGHT_GREEN_ON "\x1B[1;32m"
#define ANSI_HIGHLIGHT_YELLOW_ON "\x1B[1;33m"
+#define ANSI_HIGHLIGHT_BLUE_ON "\x1B[1;34m"
#define ANSI_HIGHLIGHT_OFF "\x1B[0m"
#define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"
@@ -105,8 +111,13 @@ static inline bool isempty(const char *p) {
return !p || !p[0];
}
+static inline const char *startswith(const char *s, const char *prefix) {
+ if (strncmp(s, prefix, strlen(prefix)) == 0)
+ return s + strlen(prefix);
+ return NULL;
+}
+
char *endswith(const char *s, const char *postfix) _pure_;
-char *startswith(const char *s, const char *prefix) _pure_;
int close_nointr(int fd);
void close_nointr_nofail(int fd);
@@ -123,9 +134,6 @@ char *split_quoted(const char *c, size_t *l, char **state);
#define FOREACH_WORD_QUOTED(word, length, s, state) \
for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state)))
-int write_one_line_file(const char *fn, const char *line);
-int read_one_line_file(const char *fn, char **line);
-
char *strappend(const char *s, const char *suffix);
char *strnappend(const char *s, const char *suffix, size_t length);
@@ -206,10 +214,15 @@ int null_or_empty_path(const char *fn);
int execute_command(const char *command, char *const argv[]);
+bool nulstr_contains(const char*nulstr, const char *needle);
+
char *strjoin(const char *x, ...) _sentinel_;
bool is_main_thread(void);
+#define NULSTR_FOREACH(i, l) \
+ for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
+
#define NULSTR_FOREACH_PAIR(i, j, l) \
for ((i) = (l), (j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i))
@@ -247,6 +260,13 @@ static inline void freep(void *p) {
free(*(void**) p);
}
+#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
+ static inline void func##p(type *p) { \
+ if (*p) \
+ func(*p); \
+ } \
+ struct __useless_struct_to_allow_trailing_semicolon__
+
static inline void fclosep(FILE **f) {
if (*f)
fclose(*f);
@@ -274,6 +294,13 @@ _malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b)
return malloc(a * b);
}
+/**
+ * Check if a string contains any glob patterns.
+ */
+_pure_ static inline bool string_is_glob(const char *p) {
+ return !!strpbrk(p, GLOB_CHARS);
+}
+
void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
int (*compar) (const void *, const void *, void *),
void *arg);
@@ -300,3 +327,6 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size,
qsort(base, nmemb, size, compar);
}
}
+
+int proc_cmdline(char **ret);
+int getpeercred(int fd, struct ucred *ucred);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-02 09:25:21 +0000