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-rw-r--r--src/basic/fileio.c40
-rw-r--r--src/basic/fileio.h2
-rw-r--r--src/basic/process-util.c2
-rw-r--r--src/basic/virt.c2
-rw-r--r--src/bootchart/svg.c20
-rw-r--r--src/shared/architecture.h16
-rw-r--r--src/shared/sleep-config.c2
-rw-r--r--src/test/test-fileio.c8
8 files changed, 62 insertions, 30 deletions
diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index 4a9105f421..13a85e1158 100644
--- a/src/basic/fileio.c
+++ b/src/basic/fileio.c
@@ -775,15 +775,19 @@ int executable_is_script(const char *path, char **interpreter) {
/**
* Retrieve one field from a file like /proc/self/status. pattern
- * should start with '\n' and end with a ':'. Whitespace and zeros
- * after the ':' will be skipped. field must be freed afterwards.
+ * should not include whitespace or the delimiter (':'). pattern matches only
+ * the beginning of a line. Whitespace before ':' is skipped. Whitespace and
+ * zeros after the ':' will be skipped. field must be freed afterwards.
+ * terminator specifies the terminating characters of the field value (not
+ * included in the value).
*/
-int get_status_field(const char *filename, const char *pattern, char **field) {
+int get_proc_field(const char *filename, const char *pattern, const char *terminator, char **field) {
_cleanup_free_ char *status = NULL;
char *t, *f;
size_t len;
int r;
+ assert(terminator);
assert(filename);
assert(pattern);
assert(field);
@@ -792,11 +796,31 @@ int get_status_field(const char *filename, const char *pattern, char **field) {
if (r < 0)
return r;
- t = strstr(status, pattern);
- if (!t)
- return -ENOENT;
+ t = status;
+
+ do {
+ bool pattern_ok;
+
+ do {
+ t = strstr(t, pattern);
+ if (!t)
+ return -ENOENT;
+
+ /* Check that pattern occurs in beginning of line. */
+ pattern_ok = (t == status || t[-1] == '\n');
+
+ t += strlen(pattern);
+
+ } while (!pattern_ok);
+
+ t += strspn(t, " \t");
+ if (!*t)
+ return -ENOENT;
+
+ } while (*t != ':');
+
+ t++;
- t += strlen(pattern);
if (*t) {
t += strspn(t, " \t");
@@ -812,7 +836,7 @@ int get_status_field(const char *filename, const char *pattern, char **field) {
t --;
}
- len = strcspn(t, WHITESPACE);
+ len = strcspn(t, terminator);
f = strndup(t, len);
if (!f)
diff --git a/src/basic/fileio.h b/src/basic/fileio.h
index 2e8148ff24..4998d4d042 100644
--- a/src/basic/fileio.h
+++ b/src/basic/fileio.h
@@ -48,4 +48,4 @@ int write_env_file(const char *fname, char **l);
int executable_is_script(const char *path, char **interpreter);
-int get_status_field(const char *filename, const char *pattern, char **field);
+int get_proc_field(const char *filename, const char *pattern, const char *terminator, char **field);
diff --git a/src/basic/process-util.c b/src/basic/process-util.c
index cff2d2a034..d8a94a4572 100644
--- a/src/basic/process-util.c
+++ b/src/basic/process-util.c
@@ -215,7 +215,7 @@ int get_process_capeff(pid_t pid, char **capeff) {
p = procfs_file_alloca(pid, "status");
- r = get_status_field(p, "\nCapEff:", capeff);
+ r = get_proc_field(p, "CapEff", WHITESPACE, capeff);
if (r == -ENOENT)
return -ESRCH;
diff --git a/src/basic/virt.c b/src/basic/virt.c
index 1fc6c1baba..70543177b6 100644
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -240,7 +240,7 @@ static int detect_vm_zvm(void) {
_cleanup_free_ char *t = NULL;
int r;
- r = get_status_field("/proc/sysinfo", "VM00 Control Program:", &t);
+ r = get_proc_field("/proc/sysinfo", "VM00 Control Program", WHITESPACE, &t);
if (r == -ENOENT)
return VIRTUALIZATION_NONE;
if (r < 0)
diff --git a/src/bootchart/svg.c b/src/bootchart/svg.c
index c66f12e3a6..db5fc863b0 100644
--- a/src/bootchart/svg.c
+++ b/src/bootchart/svg.c
@@ -30,6 +30,7 @@
#include <sys/utsname.h>
#include <fcntl.h>
+#include "architecture.h"
#include "util.h"
#include "fileio.h"
#include "macro.h"
@@ -147,7 +148,7 @@ static int svg_title(FILE *of, const char *build, int pscount, double log_start,
_cleanup_free_ char *model = NULL;
_cleanup_free_ char *buf = NULL;
char date[256] = "Unknown";
- char *cpu;
+ const char *cpu;
char *c;
time_t t;
int r;
@@ -188,20 +189,11 @@ static int svg_title(FILE *of, const char *build, int pscount, double log_start,
assert_se(r > 0);
/* CPU type */
- r = read_full_file("/proc/cpuinfo", &buf, NULL);
+ r = get_proc_field("/proc/cpuinfo", PROC_CPUINFO_MODEL, "\n", &buf);
if (r < 0)
- return log_error_errno(r, "Unable to read cpuinfo: %m");
-
- cpu = strstr(buf, "model name");
- if (!cpu) {
- log_error("Unable to read module name from cpuinfo.\n");
- return -ENOENT;
- }
-
- cpu += 13;
- c = strchr(cpu, '\n');
- if (c)
- *c = '\0';
+ cpu = "Unknown";
+ else
+ cpu = buf;
fprintf(of, "<text class=\"t1\" x=\"0\" y=\"30\">Bootchart for %s - %s</text>\n",
uts.nodename, date);
diff --git a/src/shared/architecture.h b/src/shared/architecture.h
index f5bbf65a90..61d067cad7 100644
--- a/src/shared/architecture.h
+++ b/src/shared/architecture.h
@@ -78,9 +78,11 @@ int uname_architecture(void);
#if defined(__x86_64__)
# define native_architecture() ARCHITECTURE_X86_64
# define LIB_ARCH_TUPLE "x86_64-linux-gnu"
+# define PROC_CPUINFO_MODEL "model name"
#elif defined(__i386__)
# define native_architecture() ARCHITECTURE_X86
# define LIB_ARCH_TUPLE "i386-linux-gnu"
+# define PROC_CPUINFO_MODEL "model name"
#elif defined(__powerpc64__)
# if __BYTE_ORDER == __BIG_ENDIAN
# define native_architecture() ARCHITECTURE_PPC64
@@ -89,6 +91,7 @@ int uname_architecture(void);
# define native_architecture() ARCHITECTURE_PPC64_LE
# define LIB_ARCH_TUPLE "powerpc64le-linux-gnu"
# endif
+# define PROC_CPUINFO_MODEL "cpu"
#elif defined(__powerpc__)
# if __BYTE_ORDER == __BIG_ENDIAN
# define native_architecture() ARCHITECTURE_PPC
@@ -97,15 +100,18 @@ int uname_architecture(void);
# define native_architecture() ARCHITECTURE_PPC_LE
# error "Missing LIB_ARCH_TUPLE for PPCLE"
# endif
+# define PROC_CPUINFO_MODEL "cpu"
#elif defined(__ia64__)
# define native_architecture() ARCHITECTURE_IA64
# define LIB_ARCH_TUPLE "ia64-linux-gnu"
#elif defined(__hppa64__)
# define native_architecture() ARCHITECTURE_PARISC64
# error "Missing LIB_ARCH_TUPLE for HPPA64"
+# define PROC_CPUINFO_MODEL "cpu"
#elif defined(__hppa__)
# define native_architecture() ARCHITECTURE_PARISC
# define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
+# define PROC_CPUINFO_MODEL "cpu"
#elif defined(__s390x__)
# define native_architecture() ARCHITECTURE_S390X
# define LIB_ARCH_TUPLE "s390x-linux-gnu"
@@ -115,9 +121,11 @@ int uname_architecture(void);
#elif defined(__sparc64__)
# define native_architecture() ARCHITECTURE_SPARC64
# define LIB_ARCH_TUPLE "sparc64-linux-gnu"
+# define PROC_CPUINFO_MODEL "cpu"
#elif defined(__sparc__)
# define native_architecture() ARCHITECTURE_SPARC
# define LIB_ARCH_TUPLE "sparc-linux-gnu"
+# define PROC_CPUINFO_MODEL "cpu"
#elif defined(__mips64__)
# if __BYTE_ORDER == __BIG_ENDIAN
# define native_architecture() ARCHITECTURE_MIPS64
@@ -126,6 +134,7 @@ int uname_architecture(void);
# define native_architecture() ARCHITECTURE_MIPS64_LE
# error "Missing LIB_ARCH_TUPLE for MIPS64_LE"
# endif
+# define PROC_CPUINFO_MODEL "cpu model"
#elif defined(__mips__)
# if __BYTE_ORDER == __BIG_ENDIAN
# define native_architecture() ARCHITECTURE_MIPS
@@ -134,6 +143,7 @@ int uname_architecture(void);
# define native_architecture() ARCHITECTURE_MIPS_LE
# define LIB_ARCH_TUPLE "mipsel-linux-gnu"
# endif
+# define PROC_CPUINFO_MODEL "cpu model"
#elif defined(__alpha__)
# define native_architecture() ARCHITECTURE_ALPHA
# define LIB_ARCH_TUPLE "alpha-linux-gnu"
@@ -169,6 +179,7 @@ int uname_architecture(void);
# define LIB_ARCH_TUPLE "arm-linux-gnu"
# endif
# endif
+# define PROC_CPUINFO_MODEL "model name"
#elif defined(__sh64__)
# define native_architecture() ARCHITECTURE_SH64
# error "Missing LIB_ARCH_TUPLE for SH64"
@@ -188,5 +199,10 @@ int uname_architecture(void);
# error "Please register your architecture here!"
#endif
+#ifndef PROC_CPUINFO_MODEL
+#warning "PROC_CPUINFO_MODEL not defined for your architecture"
+#define PROC_CPUINFO_MODEL "model name"
+#endif
+
const char *architecture_to_string(int a) _const_;
int architecture_from_string(const char *s) _pure_;
diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c
index 1064fd5cbd..3dedbd1f62 100644
--- a/src/shared/sleep-config.c
+++ b/src/shared/sleep-config.c
@@ -226,7 +226,7 @@ static bool enough_memory_for_hibernation(void) {
if (r < 0)
return false;
- r = get_status_field("/proc/meminfo", "\nActive(anon):", &active);
+ r = get_proc_field("/proc/meminfo", "Active(anon)", WHITESPACE, &active);
if (r < 0) {
log_error_errno(r, "Failed to retrieve Active(anon) from /proc/meminfo: %m");
return false;
diff --git a/src/test/test-fileio.c b/src/test/test-fileio.c
index be3a87958f..ad547822e7 100644
--- a/src/test/test-fileio.c
+++ b/src/test/test-fileio.c
@@ -241,18 +241,18 @@ static void test_status_field(void) {
unsigned long long total = 0, buffers = 0;
int r;
- assert_se(get_status_field("/proc/self/status", "\nThreads:", &t) == 0);
+ assert_se(get_proc_field("/proc/self/status", "Threads", WHITESPACE, &t) == 0);
puts(t);
assert_se(streq(t, "1"));
- r = get_status_field("/proc/meminfo", "MemTotal:", &p);
+ r = get_proc_field("/proc/meminfo", "MemTotal", WHITESPACE, &p);
if (r != -ENOENT) {
assert_se(r == 0);
puts(p);
assert_se(safe_atollu(p, &total) == 0);
}
- r = get_status_field("/proc/meminfo", "\nBuffers:", &s);
+ r = get_proc_field("/proc/meminfo", "Buffers", WHITESPACE, &s);
if (r != -ENOENT) {
assert_se(r == 0);
puts(s);
@@ -263,7 +263,7 @@ static void test_status_field(void) {
assert_se(buffers < total);
/* Seccomp should be a good test for field full of zeros. */
- r = get_status_field("/proc/meminfo", "\nSeccomp:", &z);
+ r = get_proc_field("/proc/meminfo", "Seccomp", WHITESPACE, &z);
if (r != -ENOENT) {
assert_se(r == 0);
puts(z);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-11 01:11:40 +0000