-DQUOTACHECK=\"$(QUOTACHECK)\" \
-DKEXEC=\"$(KEXEC)\" \
-I $(top_srcdir)/src \
+ -I $(top_builddir)/src/shared \
-I $(top_srcdir)/src/shared \
-I $(top_srcdir)/src/network \
-I $(top_srcdir)/src/login \
src/shared/ptyfwd.c \
src/shared/ptyfwd.h \
src/shared/net-util.c \
- src/shared/net-util.h
+ src/shared/net-util.h \
+ src/shared/errno-list.c \
+ src/shared/errno-list.h
+
+nodist_libsystemd_shared_la_SOURCES = \
+ src/shared/errno-from-name.h \
+ src/shared/errno-to-name.h
# ------------------------------------------------------------------------------
noinst_LTLIBRARIES += \
src/core/load-fragment-gperf.c \
src/core/load-fragment-gperf-nulstr.c \
src/core/syscall-list.txt \
- src/core/syscall-from-name.gperf
+ src/core/syscall-from-name.gperf \
+ src/shared/errno-list.txt \
+ src/shared/errno-from-name.gperf
BUILT_SOURCES += \
src/core/syscall-from-name.h \
- src/core/syscall-to-name.h
+ src/core/syscall-to-name.h \
+ src/shared/errno-from-name.h \
+ src/shared/errno-to-name.h
src/core/syscall-list.txt: Makefile
$(AM_V_at)$(MKDIR_P) $(dir $@)
src/core/syscall-to-name.h: src/core/syscall-list.txt Makefile
$(AM_V_at)$(MKDIR_P) $(dir $@)
- $(AM_V_GEN)$(AWK) 'BEGIN{ print "const char* const syscall_names[] = { "} { printf "[SYSCALL_TO_INDEX(__NR_%s)] = \"%s\",\n", $$1, $$1 } END{print "};"}' < $< > $@
+ $(AM_V_GEN)$(AWK) 'BEGIN{ print "static const char* const syscall_names[] = { "} { printf "[SYSCALL_TO_INDEX(__NR_%s)] = \"%s\",\n", $$1, $$1 } END{print "};"}' < $< > $@
+
+src/shared/errno-list.txt: Makefile
+ $(AM_V_at)$(MKDIR_P) $(dir $@)
+ $(AM_V_GEN)$(CPP) $(CFLAGS) $(AM_CPPFLAGS) $(CPPFLAGS) -dM -include errno.h - < /dev/null | $(AWK) '/^#define[ \t]+E[^ _]+[ \t]+[0-9]/ { print $$2; }' > $@
+
+src/shared/errno-from-name.gperf: src/shared/errno-list.txt Makefile
+ $(AM_V_at)$(MKDIR_P) $(dir $@)
+ $(AM_V_GEN)$(AWK) 'BEGIN{ print "struct errno_name { const char* name; int id; };"; print "%null-strings"; print "%%";} { printf "%s, %s\n", $$1, $$1 }' < $< > $@
+
+src/shared/errno-from-name.h: src/shared/errno-from-name.gperf Makefile
+ $(AM_V_at)$(MKDIR_P) $(dir $@)
+ $(AM_V_GPERF)$(GPERF) -L ANSI-C -t --ignore-case -N lookup_errno -H hash_errno_name -p -C < $< > $@
+
+src/shared/errno-to-name.h: src/shared/errno-list.txt Makefile
+ $(AM_V_at)$(MKDIR_P) $(dir $@)
+ $(AM_V_GEN)$(AWK) 'BEGIN{ print "static const char* const errno_names[] = { "} { printf "[%s] = \"%s\",\n", $$1, $$1 } END{print "};"}' < $< > $@
# ------------------------------------------------------------------------------
systemd_SOURCES = \
test-bus-zero-copy \
test-bus-introspect \
test-bus-objects \
+ test-bus-error \
test-event
bin_PROGRAMS += \
libsystemd-capability.la \
$(CAP_LIBS)
+test_bus_error_SOURCES = \
+ src/libsystemd-bus/test-bus-error.c
+
+test_bus_error_LDADD = \
+ libsystemd-bus-internal.la \
+ libsystemd-id128-internal.la \
+ libsystemd-daemon-internal.la \
+ libsystemd-shared.la
+
test_bus_match_SOURCES = \
src/libsystemd-bus/test-bus-match.c
#include <stdio.h>
#include "util.h"
+#include "errno-list.h"
#include "sd-bus.h"
#include "bus-error.h"
+#define BUS_ERROR_OOM SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_NO_MEMORY, "Out of memory")
+#define BUS_ERROR_FAILED SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FAILED, "Operation failed")
+
+static int bus_error_name_to_errno(const char *name) {
+ const char *p;
+ int r;
+
+ if (!name)
+ return EINVAL;
+
+ p = startswith(name, "Posix.Error.");
+ if (p) {
+ r = errno_from_name(p);
+ if (r <= 0)
+ return EIO;
+
+ return r;
+ }
+
+ /* Better replace this with a gperf table */
+
+ if (streq(name, SD_BUS_ERROR_NO_MEMORY))
+ return ENOMEM;
+
+ if (streq(name, SD_BUS_ERROR_SERVICE_UNKNOWN))
+ return EHOSTUNREACH;
+
+ if (streq(name, SD_BUS_ERROR_NAME_HAS_NO_OWNER))
+ return ENXIO;
+
+ if (streq(name, SD_BUS_ERROR_NO_REPLY) ||
+ streq(name, SD_BUS_ERROR_TIMEOUT) ||
+ streq(name, "org.freedesktop.DBus.Error.TimedOut"))
+ return ETIMEDOUT;
+
+ if (streq(name, SD_BUS_ERROR_IO_ERROR))
+ return EIO;
+
+ if (streq(name, SD_BUS_ERROR_BAD_ADDRESS))
+ return EADDRNOTAVAIL;
+
+ if (streq(name, SD_BUS_ERROR_NOT_SUPPORTED))
+ return ENOTSUP;
+
+ if (streq(name, SD_BUS_ERROR_LIMITS_EXCEEDED))
+ return ENOBUFS;
+
+ if (streq(name, SD_BUS_ERROR_ACCESS_DENIED) ||
+ streq(name, SD_BUS_ERROR_AUTH_FAILED))
+ return EACCES;
+
+ if (streq(name, SD_BUS_ERROR_NO_SERVER))
+ return EHOSTDOWN;
+
+ if (streq(name, SD_BUS_ERROR_NO_NETWORK))
+ return ENONET;
+
+ if (streq(name, SD_BUS_ERROR_ADDRESS_IN_USE))
+ return EADDRINUSE;
+
+ if (streq(name, SD_BUS_ERROR_DISCONNECTED))
+ return ECONNRESET;
+
+ if (streq(name, SD_BUS_ERROR_INVALID_ARGS) ||
+ streq(name, SD_BUS_ERROR_INVALID_SIGNATURE) ||
+ streq(name, "org.freedesktop.DBus.Error.MatchRuleInvalid") ||
+ streq(name, "org.freedesktop.DBus.Error.InvalidFileContent"))
+ return EINVAL;
+
+ if (streq(name, SD_BUS_ERROR_FILE_NOT_FOUND) ||
+ streq(name, "org.freedesktop.DBus.Error.MatchRuleNotFound"))
+ return ENOENT;
+
+ if (streq(name, SD_BUS_ERROR_FILE_EXISTS))
+ return EEXIST;
+
+ if (streq(name, SD_BUS_ERROR_UNKNOWN_METHOD) ||
+ streq(name, SD_BUS_ERROR_UNKNOWN_OBJECT) ||
+ streq(name, SD_BUS_ERROR_UNKNOWN_INTERFACE) ||
+ streq(name, SD_BUS_ERROR_UNKNOWN_PROPERTY))
+ return EBADR;
+
+ if (streq(name, SD_BUS_ERROR_PROPERTY_READ_ONLY))
+ return EROFS;
+
+ if (streq(name, SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN) ||
+ streq(name, "org.freedesktop.DBus.Error.SELinuxSecurityContextUnknown"))
+ return ESRCH;
+
+ if (streq(name, SD_BUS_ERROR_INCONSISTENT_MESSAGE))
+ return EBADMSG;
+
+ if (streq(name, "org.freedesktop.DBus.Error.ObjectPathInUse"))
+ return EBUSY;
+
+ return EIO;
+}
+
+static sd_bus_error errno_to_bus_error_const(int error) {
+
+ if (error < 0)
+ error = -error;
+
+ switch (error) {
+
+ case ENOMEM:
+ return BUS_ERROR_OOM;
+
+ case EPERM:
+ case EACCES:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_ACCESS_DENIED, "Access denied");
+
+ case EINVAL:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid argument");
+
+ case ESRCH:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN, "No such process");
+
+ case ENOENT:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_NOT_FOUND, "File not found");
+
+ case EEXIST:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "File exists");
+
+ case ETIMEDOUT:
+ case ETIME:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_TIMEOUT, "Timed out");
+
+ case EIO:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_IO_ERROR, "Input/output error");
+
+ case ENETRESET:
+ case ECONNABORTED:
+ case ECONNRESET:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_DISCONNECTED, "Disconnected");
+
+ case ENOTSUP:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_NOT_SUPPORTED, "Not supported");
+
+ case EADDRNOTAVAIL:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_BAD_ADDRESS, "Address not available");
+
+ case ENOBUFS:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_LIMITS_EXCEEDED, "Limits exceeded");
+
+ case EADDRINUSE:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_ADDRESS_IN_USE, "Address in use");
+
+ case EBADMSG:
+ return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INCONSISTENT_MESSAGE, "Inconsistent message");
+ }
+
+ return SD_BUS_ERROR_NULL;
+}
+
+static int errno_to_bus_error_name_new(int error, char **ret) {
+ const char *name;
+ char *n;
+
+ if (error < 0)
+ error = -error;
+
+ name = errno_to_name(error);
+ if (!name)
+ return 0;
+
+ n = strappend("Posix.Error.", name);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 1;
+}
+
bool bus_error_is_dirty(sd_bus_error *e) {
if (!e)
- return 0;
+ return false;
return e->name || e->message || e->need_free;
}
}
_public_ int sd_bus_error_set(sd_bus_error *e, const char *name, const char *message) {
- char *n, *m = NULL;
- if (!e)
+ if (!name)
return 0;
+ if (!e)
+ goto finish;
assert_return(!bus_error_is_dirty(e), -EINVAL);
- assert_return(name, -EINVAL);
- n = strdup(name);
- if (!n)
+ e->name = strdup(name);
+ if (!e->name) {
+ *e = BUS_ERROR_OOM;
return -ENOMEM;
-
- if (message) {
- m = strdup(message);
- if (!m)
- return -ENOMEM;
}
- e->name = n;
- e->message = m;
+ if (message)
+ e->message = strdup(message);
+
e->need_free = true;
- return sd_bus_error_get_errno(e);
+finish:
+ return -bus_error_name_to_errno(name);
}
int bus_error_setfv(sd_bus_error *e, const char *name, const char *format, va_list ap) {
- char *n, *m = NULL;
- int r;
- if (!e)
+ if (!name)
return 0;
+ if (!e)
+ goto finish;
assert_return(!bus_error_is_dirty(e), -EINVAL);
- assert_return(name, -EINVAL);
- n = strdup(name);
- if (!n)
+ e->name = strdup(name);
+ if (!e->name) {
+ *e = BUS_ERROR_OOM;
return -ENOMEM;
-
- if (format) {
- r = vasprintf(&m, format, ap);
- if (r < 0) {
- free(n);
- return -ENOMEM;
- }
}
- e->name = n;
- e->message = m;
+ if (format)
+ vasprintf((char**) &e->message, format, ap);
+
e->need_free = true;
- return sd_bus_error_get_errno(e);
+finish:
+ return -bus_error_name_to_errno(name);
}
_public_ int sd_bus_error_setf(sd_bus_error *e, const char *name, const char *format, ...) {
}
_public_ int sd_bus_error_copy(sd_bus_error *dest, const sd_bus_error *e) {
- char *x, *y = NULL;
- if (!dest)
- return 0;
if (!sd_bus_error_is_set(e))
return 0;
+ if (!dest)
+ goto finish;
assert_return(!bus_error_is_dirty(dest), -EINVAL);
- x = strdup(e->name);
- if (!x)
- return -ENOMEM;
-
- if (e->message) {
- y = strdup(e->message);
- if (!y) {
- free(x);
+ if (!e->need_free)
+ *dest = *e;
+ else {
+ dest->name = strdup(e->name);
+ if (!dest->name) {
+ *dest = BUS_ERROR_OOM;
return -ENOMEM;
}
+
+ if (e->message)
+ dest->message = strdup(e->message);
+
+ dest->need_free = true;
}
- dest->name = x;
- dest->message = y;
- dest->need_free = true;
- return sd_bus_error_get_errno(e);
+finish:
+ return -bus_error_name_to_errno(e->name);
}
_public_ int sd_bus_error_set_const(sd_bus_error *e, const char *name, const char *message) {
- if (!e)
+ if (!name)
return 0;
+ if (!e)
+ goto finish;
assert_return(!bus_error_is_dirty(e), -EINVAL);
- assert_return(name, -EINVAL);
*e = SD_BUS_ERROR_MAKE_CONST(name, message);
- return sd_bus_error_get_errno(e);
+
+finish:
+ return -bus_error_name_to_errno(name);
}
_public_ int sd_bus_error_is_set(const sd_bus_error *e) {
}
_public_ int sd_bus_error_get_errno(const sd_bus_error* e) {
-
- /* Better replce this with a gperf table */
-
if (!e)
- return EIO;
-
- if (!e->name)
- return EIO;
-
- if (streq(e->name, SD_BUS_ERROR_NO_MEMORY))
- return ENOMEM;
-
- if (streq(e->name, SD_BUS_ERROR_SERVICE_UNKNOWN))
- return EHOSTUNREACH;
-
- if (streq(e->name, SD_BUS_ERROR_NAME_HAS_NO_OWNER))
- return ENXIO;
-
- if (streq(e->name, SD_BUS_ERROR_NO_REPLY) ||
- streq(e->name, SD_BUS_ERROR_TIMEOUT) ||
- streq(e->name, "org.freedesktop.DBus.Error.TimedOut"))
- return ETIMEDOUT;
-
- if (streq(e->name, SD_BUS_ERROR_IO_ERROR))
- return EIO;
-
- if (streq(e->name, SD_BUS_ERROR_BAD_ADDRESS))
- return EADDRNOTAVAIL;
-
- if (streq(e->name, SD_BUS_ERROR_NOT_SUPPORTED))
- return ENOTSUP;
-
- if (streq(e->name, SD_BUS_ERROR_LIMITS_EXCEEDED))
- return ENOBUFS;
-
- if (streq(e->name, SD_BUS_ERROR_ACCESS_DENIED) ||
- streq(e->name, SD_BUS_ERROR_AUTH_FAILED))
- return EACCES;
-
- if (streq(e->name, SD_BUS_ERROR_NO_SERVER))
- return EHOSTDOWN;
-
- if (streq(e->name, SD_BUS_ERROR_NO_NETWORK))
- return ENONET;
-
- if (streq(e->name, SD_BUS_ERROR_ADDRESS_IN_USE))
- return EADDRINUSE;
-
- if (streq(e->name, SD_BUS_ERROR_DISCONNECTED))
- return ECONNRESET;
-
- if (streq(e->name, SD_BUS_ERROR_INVALID_ARGS) ||
- streq(e->name, SD_BUS_ERROR_INVALID_SIGNATURE) ||
- streq(e->name, "org.freedesktop.DBus.Error.MatchRuleInvalid") ||
- streq(e->name, "org.freedesktop.DBus.Error.InvalidFileContent"))
- return EINVAL;
-
- if (streq(e->name, SD_BUS_ERROR_FILE_NOT_FOUND) ||
- streq(e->name, "org.freedesktop.DBus.Error.MatchRuleNotFound"))
- return ENOENT;
-
- if (streq(e->name, SD_BUS_ERROR_FILE_EXISTS))
- return EEXIST;
-
- if (streq(e->name, SD_BUS_ERROR_UNKNOWN_METHOD) ||
- streq(e->name, SD_BUS_ERROR_UNKNOWN_OBJECT) ||
- streq(e->name, SD_BUS_ERROR_UNKNOWN_INTERFACE) ||
- streq(e->name, SD_BUS_ERROR_UNKNOWN_PROPERTY))
- return EBADR;
-
- if (streq(e->name, SD_BUS_ERROR_PROPERTY_READ_ONLY))
- return EROFS;
-
- if (streq(e->name, SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN) ||
- streq(e->name, "org.freedesktop.DBus.Error.SELinuxSecurityContextUnknown"))
- return ESRCH;
-
- if (streq(e->name, SD_BUS_ERROR_INCONSISTENT_MESSAGE))
- return EBADMSG;
-
- if (streq(e->name, "org.freedesktop.DBus.Error.ObjectPathInUse"))
- return EBUSY;
+ return 0;
- return EIO;
+ return bus_error_name_to_errno(e->name);
}
-static int bus_error_set_strerror_or_const(sd_bus_error *e, const char *name, int error, const char *fallback) {
+static void bus_error_strerror(sd_bus_error *e, int error) {
size_t k = 64;
- char *n = NULL, *m = NULL;
-
- if (error < 0)
- error = -error;
+ char *m;
- if (!e)
- return -error;
-
- assert_return(!bus_error_is_dirty(e), -EINVAL);
- assert_return(name, -EINVAL);
+ assert(e);
for (;;) {
char *x;
m = new(char, k);
if (!m)
- goto use_fallback;
+ return;
errno = 0;
x = strerror_r(error, m, k);
if (!x || errno) {
free(m);
- goto use_fallback;
+ return;
}
-
- if (x != m) {
+ if (x == m) {
+ if (e->need_free) {
+ /* Error is already dynamic, let's just update the message */
+ free((char*) e->message);
+ e->message = x;
+
+ } else {
+ char *t;
+ /* Error was const so far, let's make it dynamic, if we can */
+
+ t = strdup(e->name);
+ if (!t) {
+ free(m);
+ return;
+ }
+
+ e->need_free = true;
+ e->name = t;
+ e->message = x;
+ }
+ } else {
free(m);
- sd_bus_error_set_const(e, name, x);
- return -error;
- }
-
- break;
- }
-
- n = strdup(name);
- if (!n) {
- free(m);
- goto use_fallback;
- }
+ if (e->need_free) {
+ char *t;
- e->name = n;
- e->message = m;
- e->need_free = true;
+ /* Error is dynamic, let's hence make the message also dynamic */
+ t = strdup(x);
+ if (!t)
+ return;
- return -error;
+ free((char*) e->message);
+ e->message = t;
+ } else {
+ /* Error is const, hence we can just override */
+ e->message = x;
+ }
+ }
-use_fallback:
- sd_bus_error_set_const(e, name, fallback);
- return -error;
+ return;
+ }
}
-static sd_bus_error map_from_errno(int error) {
+_public_ int sd_bus_error_set_errno(sd_bus_error *e, int error) {
if (error < 0)
error = -error;
- switch (error) {
-
- case ENOMEM:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_NO_NETWORK, "Out of memory");
-
- case EPERM:
- case EACCES:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_ACCESS_DENIED, "Access denied");
-
- case EINVAL:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid argument");
-
- case ESRCH:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN, "No such process");
-
- case ENOENT:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_NOT_FOUND, "File not found");
-
- case EEXIST:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "File exists");
-
- case ETIMEDOUT:
- case ETIME:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_TIMEOUT, "Timed out");
-
- case EIO:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_IO_ERROR, "Input/output error");
-
- case ENETRESET:
- case ECONNABORTED:
- case ECONNRESET:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_DISCONNECTED, "Disconnected");
+ if (!e)
+ return -error;
+ if (error == 0)
+ return -error;
- case ENOTSUP:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_NOT_SUPPORTED, "Not supported");
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
- case EADDRNOTAVAIL:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_BAD_ADDRESS, "Address not available");
+ /* First, try a const translation */
+ *e = errno_to_bus_error_const(error);
- case ENOBUFS:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_LIMITS_EXCEEDED, "Limits exceeded");
+ if (!sd_bus_error_is_set(e)) {
+ int k;
- case EADDRINUSE:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_ADDRESS_IN_USE, "Address in use");
+ /* If that didn't work, try a dynamic one. */
- case EBADMSG:
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INCONSISTENT_MESSAGE, "Inconsistent message");
+ k = errno_to_bus_error_name_new(error, (char**) &e->name);
+ if (k > 0)
+ e->need_free = true;
+ else if (k < 0) {
+ *e = BUS_ERROR_OOM;
+ return -error;
+ } else
+ *e = BUS_ERROR_FAILED;
}
- return SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FAILED, "Operation failed");
-}
-
-_public_ int sd_bus_error_set_errno(sd_bus_error *e, int error) {
- sd_bus_error x;
-
- x = map_from_errno(error);
-
- return bus_error_set_strerror_or_const(e, x.name, error, x.message);
+ /* Now, fill in the message from strerror() if we can */
+ bus_error_strerror(e, error);
+ return -error;
}
int bus_error_set_errnofv(sd_bus_error *e, int error, const char *format, va_list ap) {
- sd_bus_error x;
int r;
if (error < 0)
if (!e)
return -error;
+ if (error == 0)
+ return 0;
assert_return(!bus_error_is_dirty(e), -EINVAL);
- x = map_from_errno(error);
+ /* First, try a const translation */
+ *e = errno_to_bus_error_const(error);
+
+ if (!sd_bus_error_is_set(e)) {
+ int k;
+
+ /* If that didn't work, try a dynamic one */
+
+ k = errno_to_bus_error_name_new(error, (char**) &e->name);
+ if (k > 0)
+ e->need_free = true;
+ else if (k < 0) {
+ *e = BUS_ERROR_OOM;
+ return -ENOMEM;
+ } else
+ *e = BUS_ERROR_FAILED;
+ }
if (format) {
- char *n, *m;
+ char *m;
- r = vasprintf(&m, format, ap);
- if (r < 0)
- goto fallback;
+ /* First, let's try to fill in the supplied message */
- n = strdup(x.name);
- if (!n) {
- free(m);
- goto fallback;
+ r = vasprintf(&m, format, ap);
+ if (r >= 0) {
+
+ if (!e->need_free) {
+ char *t;
+
+ t = strdup(e->name);
+ if (t) {
+ e->need_free = true;
+ e->name = t;
+ e->message = m;
+ return -error;
+ }
+
+ free(m);
+ } else {
+ free((char*) e->message);
+ e->message = m;
+ return -error;
+ }
}
-
- e->name = n;
- e->message = m;
- e->need_free = true;
- return -error;
}
-fallback:
- return bus_error_set_strerror_or_const(e, x.name, error, x.message);
+ /* If that didn't work, use strerror() for the message */
+ bus_error_strerror(e, error);
+ return -error;
}
_public_ int sd_bus_error_set_errnof(sd_bus_error *e, int error, const char *format, ...) {
if (!e)
return -error;
+ if (error == 0)
+ return 0;
assert_return(!bus_error_is_dirty(e), -EINVAL);
--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 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 "sd-bus.h"
+#include "bus-error.h"
+#include "bus-util.h"
+
+int main(int argc, char *argv[]) {
+
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
+
+ assert_se(!sd_bus_error_is_set(&error));
+ assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -ENOTSUP);
+ assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
+ assert_se(streq(error.message, "xxx"));
+ assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
+ assert_se(sd_bus_error_get_errno(&error) == ENOTSUP);
+ assert_se(sd_bus_error_is_set(&error));
+ sd_bus_error_free(&error);
+
+ assert_se(!sd_bus_error_is_set(&error));
+ assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
+ assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
+ assert_se(streq(error.message, "yyy -1"));
+ assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
+ assert_se(sd_bus_error_get_errno(&error) == ENOENT);
+ assert_se(sd_bus_error_is_set(&error));
+
+ assert_se(!sd_bus_error_is_set(&second));
+ assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
+ assert_se(streq(error.name, second.name));
+ assert_se(streq(error.message, second.message));
+ assert_se(sd_bus_error_get_errno(&second) == ENOENT);
+ assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
+ assert_se(sd_bus_error_is_set(&second));
+
+ sd_bus_error_free(&error);
+
+ assert_se(!sd_bus_error_is_set(&error));
+ assert_se(sd_bus_error_set_const(&error, "Posix.Error.EUCLEAN", "Hallo") == -EUCLEAN);
+ assert_se(streq(error.name, "Posix.Error.EUCLEAN"));
+ assert_se(streq(error.message, "Hallo"));
+ assert_se(sd_bus_error_has_name(&error, "Posix.Error.EUCLEAN"));
+ assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
+ assert_se(sd_bus_error_is_set(&error));
+ sd_bus_error_free(&error);
+
+ assert_se(!sd_bus_error_is_set(&error));
+ assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
+ assert_se(streq(error.name, "Posix.Error.EBUSY"));
+ assert_se(streq(error.message, strerror(EBUSY)));
+ assert_se(sd_bus_error_has_name(&error, "Posix.Error.EBUSY"));
+ assert_se(sd_bus_error_get_errno(&error) == EBUSY);
+ assert_se(sd_bus_error_is_set(&error));
+ sd_bus_error_free(&error);
+
+ assert_se(!sd_bus_error_is_set(&error));
+ assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
+ assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
+ assert_se(streq(error.message, "Waldi X"));
+ assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
+ assert_se(sd_bus_error_get_errno(&error) == EIO);
+ assert_se(sd_bus_error_is_set(&error));
+
+ return 0;
+}
~ianmdlvl / elogind.git / commitdiff