mount: don't negate errno when passing it to strerror()

[elogind.git] / util.c

diff --git a/util.c b/util.c
index eed9aa7f84e598a5d92ed8fac733fd030ec3b695..f8b3f44ad15d665aa4a25a48cf44fb62f087a665 100644 (file)
--- a/util.c
+++ b/util.c
@@ -42,6 +42,7 @@
 #include <sys/inotify.h>
 #include <sys/poll.h>
 #include <libgen.h>
+#include <ctype.h>
 
 #include "macro.h"
 #include "util.h"
@@ -141,6 +142,30 @@ bool startswith(const char *s, const char *prefix) {
         return memcmp(s, prefix, pl) == 0;
 }
 
+bool startswith_no_case(const char *s, const char *prefix) {
+        size_t sl, pl;
+        unsigned i;
+
+        assert(s);
+        assert(prefix);
+
+        sl = strlen(s);
+        pl = strlen(prefix);
+
+        if (pl == 0)
+                return true;
+
+        if (sl < pl)
+                return false;
+
+        for(i = 0; i < pl; ++i) {
+                if (tolower(s[i]) != tolower(prefix[i]))
+                        return false;
+        }
+
+        return true;
+}
+
 bool first_word(const char *s, const char *word) {
         size_t sl, wl;
 
@@ -1572,7 +1597,7 @@ int flush_fd(int fd) {
 }
 
 int acquire_terminal(const char *name, bool fail, bool force) {
-        int fd = -1, notify = -1, r, wd;
+        int fd = -1, notify = -1, r, wd = -1;
 
         assert(name);
 
@@ -1602,8 +1627,9 @@ int acquire_terminal(const char *name, bool fail, bool force) {
         }
 
         for (;;) {
-                if ((r = flush_fd(notify)) < 0)
-                        goto fail;
+                if (notify >= 0)
+                        if ((r = flush_fd(notify)) < 0)
+                                goto fail;
 
                 /* We pass here O_NOCTTY only so that we can check the return
                  * value TIOCSCTTY and have a reliable way to figure out if we