X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Fpath-util.c;h=68881357784eba69f4cd8d165b32f903f058323e;hp=dd12d3d63409654fb446028ba92a0860bc83e4c1;hb=116cc028742836e61abce7582ec9ecf9f0aaeb53;hpb=c9c7aef24f9750bbd51d2c13beff66473d96bf3c

diff --git a/src/shared/path-util.c b/src/shared/path-util.c
index dd12d3d63..688813577 100644
--- a/src/shared/path-util.c
+++ b/src/shared/path-util.c
@@ -50,7 +50,8 @@ char *path_get_file_name(const char *p) {
 
         assert(p);
 
-        if ((r = strrchr(p, '/')))
+        r = strrchr(p, '/');
+        if (r)
                 return r + 1;
 
         return (char*) p;
@@ -101,7 +102,8 @@ char **path_split_and_make_absolute(const char *p) {
         char **l;
         assert(p);
 
-        if (!(l = strv_split(p, ":")))
+        l = strv_split(p, ":");
+        if (!l)
                 return NULL;
 
         if (!path_strv_make_absolute_cwd(l)) {
@@ -125,7 +127,7 @@ char *path_make_absolute(const char *p, const char *prefix) {
 }
 
 char *path_make_absolute_cwd(const char *p) {
-        char *cwd, *r;
+        _cleanup_free_ char *cwd = NULL;
 
         assert(p);
 
@@ -135,13 +137,11 @@ char *path_make_absolute_cwd(const char *p) {
         if (path_is_absolute(p))
                 return strdup(p);
 
-        if (!(cwd = get_current_dir_name()))
+        cwd = get_current_dir_name();
+        if (!cwd)
                 return NULL;
 
-        r = path_make_absolute(p, cwd);
-        free(cwd);
-
-        return r;
+        return path_make_absolute(p, cwd);
 }
 
 char **path_strv_make_absolute_cwd(char **l) {
@@ -154,7 +154,8 @@ char **path_strv_make_absolute_cwd(char **l) {
         STRV_FOREACH(s, l) {
                 char *t;
 
-                if (!(t = path_make_absolute_cwd(*s)))
+                t = path_make_absolute_cwd(*s);
+                if (!t)
                         return NULL;
 
                 free(*s);
@@ -190,14 +191,18 @@ char **path_strv_canonicalize(char **l) {
 
                 errno = 0;
                 u = canonicalize_file_name(t);
-                free(t);
-
                 if (!u) {
-                        if (errno == ENOMEM || !errno)
-                                enomem = true;
-
-                        continue;
-                }
+                        if (errno == ENOENT)
+                                u = t;
+                        else {
+                                free(t);
+                                if (errno == ENOMEM || !errno)
+                                        enomem = true;
+
+                                continue;
+                        }
+                } else
+                        free(t);
 
                 l[k++] = u;
         }
@@ -210,24 +215,14 @@ char **path_strv_canonicalize(char **l) {
         return l;
 }
 
-char **path_strv_remove_empty(char **l) {
-        char **f, **t;
+char **path_strv_canonicalize_uniq(char **l) {
+        if (strv_isempty(l))
+                return l;
 
-        if (!l)
+        if (!path_strv_canonicalize(l))
                 return NULL;
 
-        for (f = t = l; *f; f++) {
-
-                if (dir_is_empty(*f) > 0) {
-                        free(*f);
-                        continue;
-                }
-
-                *(t++) = *f;
-        }
-
-        *t = NULL;
-        return l;
+        return strv_uniq(l);
 }
 
 char *path_kill_slashes(char *path) {
@@ -418,3 +413,15 @@ int path_is_read_only_fs(const char *path) {
 
         return !!(st.f_flag & ST_RDONLY);
 }
+
+int path_is_os_tree(const char *path) {
+        char *p;
+        int r;
+
+        /* We use /etc/os-release as flag file if something is an OS */
+
+        p = strappenda(path, "/etc/os-release");
+        r = access(p, F_OK);
+
+        return r < 0 ? 0 : 1;
+}