[LinuxBIOS] PATCH][LAR] Allow user to specify pathnames for create and add

[Jordan Crouse]

We we get around to adding blobs to a LAR from within buildROM, we have
an interesting situation, best described with an example.

For Geode we need a VSA blob to operate correctly.  BuildROM wants to
download this blob from a website, and insert it into the the LAR
with a well known name, lets use 'vsa' for giggles.

This patch allows you to specify an arbitrary filename as well as a 
pathname for files in create & add mode in the following manner:

[flags]:[filename]:[pathname]

So instead of copying the  VSA binary into a local directory and renaming
it 'vsa' before adding it o a LAR, instead we use something like this:

./lar -a my.lar ../sources/vsa.bin:vsa

This puts the blob into the LAR, and names it 'vsa'.

(the -a functionality is coming in the next patch).

Jordan

[PATCH][LAR] Allow user to specify pathnames for create and add

Add another field to the filename specified for create and add operations
to specify the intended pathname for the blob.

Signed-off-by: Jordan Crouse 
Index: LinuxBIOSv3/util/lar/stream.c
===================================================================
--- LinuxBIOSv3.orig/util/lar/stream.c	2007-07-11 11:48:23.000000000 -0600
+++ LinuxBIOSv3/util/lar/stream.c	2007-07-11 11:48:51.000000000 -0600
@@ -436,6 +436,8 @@
 int lar_add_file(struct lar *lar, char *name)
 {
    char *filename, *ptr, *temp;
+	char *pathname;
+
    enum compalgo thisalgo;
    struct lar_header *header;
    int offset, ret, fd, hlen;
@@ -456,6 +458,18 @@
    	thisalgo = none;
    }

+	pathname = strchr(filename, ':');
+
+	if (pathname != NULL) {
+	  *pathname = '\0';
+	  pathname++;
+
+	  if (!strlen(pathname)) {
+	    err("Invalid pathname specified.\n");
+	    return -1;
+	  }
+	}
+
    if (filename[0] == '.' && filename[1] == '/')
    	filename += 2;

@@ -508,7 +522,7 @@
    munmap(ptr, s.st_size);
    close(fd);

-	pathlen = strlen(filename) + 1 > MAX_PATHLEN ? MAX_PATHLEN : strlen(filename) + 1;
+	pathlen = strlen(pathname) + 1 > MAX_PATHLEN ? MAX_PATHLEN : strlen(pathname) + 1;

/* Figure out how big our header will be */
    hlen = sizeof(struct lar_header) + pathlen;
@@ -535,7 +549,7 @@

/* Copy the path name */
    strncpy((char *) (lar->map + offset + sizeof(struct lar_header)),
-		filename, pathlen - 1);
+		pathname, pathlen - 1);

/* Copy in the data */
    memcpy(lar->map + (offset + hlen), temp, complen);
Index: LinuxBIOSv3/util/lar/lib.c
===================================================================
--- LinuxBIOSv3.orig/util/lar/lib.c	2007-07-11 11:40:29.000000000 -0600
+++ LinuxBIOSv3/util/lar/lib.c	2007-07-11 11:49:00.000000000 -0600
@@ -148,16 +148,29 @@
 {
    struct stat filestat;
    int ret = -1;
-	const char *realname;
+	char *realname;
+	char *c;
+
+	realname = strdup(name);
+
+	if (realname == NULL) {
+	  fprintf(stderr, "Out of memory.\n");
+	  exit(1);
+	}

-	realname = name;
    if (strstr(name, "nocompress:") == name) {
-		realname = name + 11;
+		realname += 11;
    }

+	c = strchr(realname, ':');
+
+	if (c != NULL)
+	  *c = '\0';
+
    /* printf("... add_files %s\n", name); */
    if (stat(realname, &filestat) == -1) {
    	fprintf(stderr, "Error getting file attributes of %s\n", name);
+		free(realname);
    	return -1;
    }

@@ -202,6 +215,7 @@
    	ret = 0;
    }

+	free(realname);
    return ret;
 }