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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-01-12 17:19:51 -0500
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-01-18 15:08:25 -0500
commitd469dd44c4f49bafe839c6e0bceb6ce4bfe7b3fe (patch)
treeac173312566e007d69bc5a01d99a8998a423daed /src
parent9c4615fb09f559642742d3698ecb5a430c698230 (diff)
basic,bus-error: return negative error from errno_from_name
errno_from_name used an unusual return convention where 0 meant "not found". This tripped up config_parse_syscall_errno(), which would treat that as success. Return -EINVAL instead, and adjust bus_error_name_to_errno() for the new convention. Also remove a goto which was used as a simple if and clean up surroudning code a bit.
Diffstat (limited to 'src')
-rw-r--r--src/basic/errno-list.c5
-rw-r--r--src/libsystemd/sd-bus/bus-error.c37
2 files changed, 20 insertions, 22 deletions
diff --git a/src/basic/errno-list.c b/src/basic/errno-list.c
index 0a66902ac9..b4d080103b 100644
--- a/src/basic/errno-list.c
+++ b/src/basic/errno-list.c
@@ -25,7 +25,7 @@
#include "macro.h"
static const struct errno_name* lookup_errno(register const char *str,
- register unsigned int len);
+ register unsigned int len);
#include "errno-from-name.h"
#include "errno-to-name.h"
@@ -48,8 +48,9 @@ int errno_from_name(const char *name) {
sc = lookup_errno(name, strlen(name));
if (!sc)
- return 0;
+ return -EINVAL;
+ assert(sc->id > 0);
return sc->id;
}
diff --git a/src/libsystemd/sd-bus/bus-error.c b/src/libsystemd/sd-bus/bus-error.c
index 404eaa3c89..a99d55c47a 100644
--- a/src/libsystemd/sd-bus/bus-error.c
+++ b/src/libsystemd/sd-bus/bus-error.c
@@ -93,14 +93,14 @@ static int bus_error_name_to_errno(const char *name) {
p = startswith(name, "System.Error.");
if (p) {
r = errno_from_name(p);
- if (r <= 0)
+ if (r < 0)
return EIO;
return r;
}
- if (additional_error_maps) {
- for (map = additional_error_maps; *map; map++) {
+ if (additional_error_maps)
+ for (map = additional_error_maps; *map; map++)
for (m = *map;; m++) {
/* For additional error maps the end marker is actually the end marker */
if (m->code == BUS_ERROR_MAP_END_MARKER)
@@ -109,15 +109,13 @@ static int bus_error_name_to_errno(const char *name) {
if (streq(m->name, name))
return m->code;
}
- }
- }
m = __start_BUS_ERROR_MAP;
while (m < __stop_BUS_ERROR_MAP) {
/* For magic ELF error maps, the end marker might
* appear in the middle of things, since multiple maps
* might appear in the same section. Hence, let's skip
- * over it, but realign the pointer to the netx 8byte
+ * over it, but realign the pointer to the next 8 byte
* boundary, which is the selected alignment for the
* arrays. */
if (m->code == BUS_ERROR_MAP_END_MARKER) {
@@ -258,25 +256,24 @@ int bus_error_setfv(sd_bus_error *e, const char *name, const char *format, va_li
if (!name)
return 0;
- if (!e)
- goto finish;
- assert_return(!bus_error_is_dirty(e), -EINVAL);
+ if (e) {
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
- e->name = strdup(name);
- if (!e->name) {
- *e = BUS_ERROR_OOM;
- return -ENOMEM;
- }
+ e->name = strdup(name);
+ if (!e->name) {
+ *e = BUS_ERROR_OOM;
+ return -ENOMEM;
+ }
- /* If we hit OOM on formatting the pretty message, we ignore
- * this, since we at least managed to write the error name */
- if (format)
- (void) vasprintf((char**) &e->message, format, ap);
+ /* If we hit OOM on formatting the pretty message, we ignore
+ * this, since we at least managed to write the error name */
+ if (format)
+ (void) vasprintf((char**) &e->message, format, ap);
- e->_need_free = 1;
+ e->_need_free = 1;
+ }
-finish:
return -bus_error_name_to_errno(name);
}