[PATCH] allow multiline rules by backslash at the end of the line

[elogind.git] / udev_utils.c

diff --git a/udev_utils.c b/udev_utils.c
index aa5c75f74d02a29c466a0185a8bbb9126cd1ed42..fe18892de19fa2eeb3332ad526b8b5c533430cd9 100644 (file)
--- a/udev_utils.c
+++ b/udev_utils.c
@@ -25,6 +25,7 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <ctype.h>
 #include <dirent.h>
 #include <sys/stat.h>
 #include <sys/mman.h>
@@ -55,6 +56,10 @@ void udev_init_device(struct udevice *udev, const char* devpath, const char *sub
                udev->type = 'n';
        else if (strncmp(udev->devpath, "/class/", 7) == 0)
                udev->type = 'c';
+
+       udev->mode = default_mode;
+       strfieldcpy(udev->owner, default_owner);
+       strfieldcpy(udev->group, default_group);
 }
 
 int kernel_release_satisfactory(int version, int patchlevel, int sublevel)
@@ -107,6 +112,41 @@ int create_path(const char *path)
        return mkdir(p, 0755);
 }
 
+int parse_get_pair(char **orig_string, char **left, char **right)
+{
+       char *temp;
+       char *string = *orig_string;
+
+       if (!string)
+               return -ENODEV;
+
+       /* eat any whitespace */
+       while (isspace(*string) || *string == ',')
+               ++string;
+
+       /* split based on '=' */
+       temp = strsep(&string, "=");
+       *left = temp;
+       if (!string)
+               return -ENODEV;
+
+       /* take the right side and strip off the '"' */
+       while (isspace(*string))
+               ++string;
+       if (*string == '"')
+               ++string;
+       else
+               return -ENODEV;
+
+       temp = strsep(&string, "\"");
+       if (!string || *temp == '\0')
+               return -ENODEV;
+       *right = temp;
+       *orig_string = string;
+       
+       return 0;
+}
+
 int file_map(const char *filename, char **buf, size_t *bufsize)
 {
        struct stat stats;
@@ -139,11 +179,21 @@ void file_unmap(char *buf, size_t bufsize)
        munmap(buf, bufsize);
 }
 
-size_t buf_get_line(char *buf, size_t buflen, size_t cur)
+/* return number of chars until the next newline, skip escaped newline */
+size_t buf_get_line(const char *buf, size_t buflen, size_t cur)
 {
-       size_t count = 0;
+       int escape = 0;
+       size_t count;
+
+       for (count = cur; count < buflen; count++) {
+               if (!escape && buf[count] == '\n')
+                       break;
 
-       for (count = cur; count < buflen && buf[count] != '\n'; count++);
+               if (buf[count] == '\\')
+                       escape = 1;
+               else
+                       escape = 0;
+       }
 
        return count - cur;
 }