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synced 2025-05-04 01:39:18 -04:00
Fix bug, add two new functions.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@70 f3766cd6-281f-0410-b1cd-43a5c92072e9
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commit
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1 changed files with 38 additions and 5 deletions
43
lib/lar.c
43
lib/lar.c
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@ -22,6 +22,7 @@
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#include <arch/types.h>
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#include <string.h>
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#include <lar.h>
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#include <console/loglevel.h>
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#ifndef CONFIG_BIG_ENDIAN
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#define ntohl(x) ( ((x&0xff)<<24) | ((x&0xff00)<<8) | \
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@ -34,19 +35,21 @@ int find_file(struct mem_file *archive, char *filename, struct mem_file *result)
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{
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char * walk, *fullname;
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struct lar_header * header;
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printk(BIOS_INFO, "filename is %s\n", filename);
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printk(BIOS_INFO, "start 0x%x len 0x%x\n", archive->start, archive->len);
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for (walk = archive->start; walk < (char *)archive->start +
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archive->len; walk+=16) {
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printk(BIOS_INFO, "in for loop *start is %x\n", *(unsigned long *) archive->start);
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printk(BIOS_INFO, "walk is %s\n", walk);
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if(strcmp(walk, MAGIC)!=0)
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continue;
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header=(struct lar_header *)walk;
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fullname=walk+sizeof(struct lar_header);
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printk(BIOS_INFO, "fullname is %s\n", fullname);
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// FIXME: check checksum
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if(strcmp(fullname, filename)!=0) {
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if(strcmp(fullname, filename)==0) {
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result->start=walk + ntohl(header->offset);
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result->len=ntohl(header->len);
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return 0;
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@ -56,8 +59,38 @@ int find_file(struct mem_file *archive, char *filename, struct mem_file *result)
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walk += ( ntohl(header->offset) + ntohl(header->len)
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+ 15 ) & 0xfffffff0;
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}
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printk(BIOS_INFO, "return 1! walk %p archive->start %p start _+ len %p\n", walk, archive->start, (char *)archive->start +
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archive->len);
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return 1;
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}
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int copy_file(struct mem_file *archive, char *filename, void *where)
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{
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int ret;
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struct mem_file result;
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ret = find_file(archive, filename, &result);
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if (ret) {
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printk(BIOS_INFO, "copy_file: no such name %s\n", filename);
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return 1;
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}
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memcpy(where, result.start, result.len);
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return 0;
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}
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int run_file(struct mem_file *archive, char *filename, void *where)
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{
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int (*v)();
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if (copy_file(archive, filename, where)){
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printk(BIOS_INFO, "run file %s failed: ENOENT\n", filename);
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return 1;
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}
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v = where;
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return v();
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}
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