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Create a file-local process_file() function which has

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the common parts of copy_file() and run_file().

Signed-off-by: Alex Beregszaszi <alex@rtfs.hu>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@497 f3766cd6-281f-0410-b1cd-43a5c92072e9
This commit is contained in:
Uwe Hermann 2007-09-16 14:32:26 +00:00
parent 872be1d31b
commit b21bb44f50
1 changed files with 34 additions and 50 deletions
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84
lib/lar.c
View file

@ -123,6 +123,35 @@ int find_file(struct mem_file *archive, const char *filename, struct mem_file *r
return 1;
}
static int process_file(struct mem_file *archive, void *where)
{
printk(BIOS_SPEW, "LAR: Compression algorithm #%i used\n", archive->compression);
/* no compression */
if (archive->compression == 0) {
memcpy(where, archive->start, archive->len);
return 0;
}
#ifdef CONFIG_COMPRESSION_LZMA
/* lzma */
unsigned long ulzma(unsigned char *src, unsigned char *dst);
if (archive->compression == 1) {
ulzma(archive->start, where);
return 0;
}
#endif
#ifdef CONFIG_COMPRESSION_NRV2B
/* nrv2b */
unsigned long unrv2b(u8 *src, u8 *dst, unsigned long *ilen_p);
if (archive->compression == 2) {
unsigned long tmp;
unrv2b(archive->start, where, &tmp);
return 0;
}
#endif
printk(BIOS_INFO, "LAR: Compression algorithm #%i not supported!\n", archive->compression);
return -1;
}
/**
* Given a file name in the LAR , search for it, and load it into memory, using
* the loadaddress pointer in the mem_file struct.
@ -146,34 +175,13 @@ void *load_file(struct mem_file *archive, const char *filename)
}
entry = result.entry;
where = result.loadaddress;
printk(BIOS_SPEW, "LAR: Compression algorithm #%i used\n", result.compression);
/* no compression */
if (result.compression == 0) {
memcpy(where, result.start, result.len);
return entry;
}
#ifdef CONFIG_COMPRESSION_LZMA
/* lzma */
unsigned long ulzma(unsigned char *src, unsigned char *dst);
if (result.compression == 1) {
ulzma(result.start, where);
return entry;
}
#endif
#ifdef CONFIG_COMPRESSION_NRV2B
/* nrv2b */
unsigned long unrv2b(u8 *src, u8 *dst, unsigned long *ilen_p);
if (result.compression == 2) {
int tmp;
unrv2b(result.start, where, &tmp);
return entry;
}
#endif
printk(BIOS_INFO, "LAR: Compression algorithm #%i not supported!\n", result.compression);
if (process_file(&result, where) == 0)
return entry;
return (void *)-1;
}
/* FIXME -- most of copy_file should be replaced by load_file */
/**
* Given a file name in the LAR , search for it, and load it into memory,
* using the passed-in pointer as the address
@ -194,31 +202,7 @@ int copy_file(struct mem_file *archive, const char *filename, void *where)
return 1;
}
printk(BIOS_SPEW, "LAR: Compression algorithm #%i used\n", result.compression);
/* no compression */
if (result.compression == 0) {
memcpy(where, result.start, result.len);
return 0;
}
#ifdef CONFIG_COMPRESSION_LZMA
/* lzma */
unsigned long ulzma(unsigned char *src, unsigned char *dst);
if (result.compression == 1) {
ulzma(result.start, where);
return 0;
}
#endif
#ifdef CONFIG_COMPRESSION_NRV2B
/* nrv2b */
unsigned long unrv2b(u8 *src, u8 *dst, unsigned long *ilen_p);
if (result.compression == 2) {
int tmp;
unrv2b(result.start, where, &tmp);
return 0;
}
#endif
printk(BIOS_INFO, "LAR: Compression algorithm #%i not supported!\n", result.compression);
return 1;
return process_file(&result, where);
}