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-rw-r--r--contrib/lar/lar.c45
1 files changed, 22 insertions, 23 deletions
diff --git a/contrib/lar/lar.c b/contrib/lar/lar.c
index 6bac9d6b8..f968634af 100644
--- a/contrib/lar/lar.c
+++ b/contrib/lar/lar.c
@@ -31,7 +31,8 @@ lar_index * lar_get_index( lar_archive *ar )
uint32_t i;
uint32_t idx_offset;
uint32_t idx_length;
- lar_index *idx_map, *idx_ptr;
+ lar_index *idx_map;
+ lar_index *idx_ptr;
if( lseek(ar->fd, -(sizeof(idx_offset)), SEEK_END) == -1 )
LAR_DIE("Unable to seek to end of archive");
@@ -45,9 +46,7 @@ lar_index * lar_get_index( lar_archive *ar )
idx_map = NULL;
- for( i = 0; i < idx_length; \
- i += (sizeof(lar_index) - sizeof(char *))
- ) {
+ for( i = 0; i < idx_length; i += (sizeof(lar_index) - sizeof(char *)) ) {
idx_ptr = (lar_index *)malloc(sizeof(lar_index));
lar_read32(ar->fd, &idx_ptr->noffset);
@@ -64,9 +63,8 @@ lar_index * lar_get_index( lar_archive *ar )
return idx_map;
}
-uint32_t lar_get_filename( lar_archive *ar,
- lar_index *idx_ptr, char *filename
-) {
+uint32_t lar_get_filename( lar_archive *ar, lar_index *idx_ptr, char *filename )
+{
if( idx_ptr->nlength >= LAR_FNAME_BUFFER )
LAR_DIE("Filename exceeds maximum allowed length");
@@ -76,7 +74,7 @@ uint32_t lar_get_filename( lar_archive *ar,
if( read(ar->fd, filename, idx_ptr->nlength) < idx_ptr->nlength )
LAR_DIE("Unexpected EOF while reading filename");
- filename[idx_ptr->nlength] = 0;
+ filename[idx_ptr->nlength] = '\0';
return idx_ptr->nlength;
}
@@ -85,9 +83,10 @@ lar_member * lar_open_member( lar_archive *ar, const char *name )
{
lar_index *idx_ptr = ar->index;
lar_member *member;
- char memberfile[LAR_FNAME_BUFFER];
char *memberdata;
- size_t pgsz = getpagesize();
+ size_t pgof;
+ size_t pgsz = getpagesize();
+ LAR_FNAME(memberfile);
while(idx_ptr)
{
@@ -95,10 +94,11 @@ lar_member * lar_open_member( lar_archive *ar, const char *name )
if( !strncmp(memberfile, name, idx_ptr->nlength) )
{
+ pgof = ( idx_ptr->foffset % pgsz );
+
memberdata = mmap(
- 0, idx_ptr->flength + ( idx_ptr->foffset % pgsz ),
- PROT_READ, MAP_PRIVATE, ar->fd,
- idx_ptr->foffset - ( idx_ptr->foffset % pgsz )
+ 0, idx_ptr->flength + pgof, PROT_READ, MAP_PRIVATE,
+ ar->fd, idx_ptr->foffset - pgof
);
if( memberdata == MAP_FAILED )
@@ -108,10 +108,10 @@ lar_member * lar_open_member( lar_archive *ar, const char *name )
member->type = idx_ptr->type;
member->flags = idx_ptr->flags;
member->length = idx_ptr->flength;
- member->data = &memberdata[idx_ptr->foffset % pgsz];
+ member->data = &memberdata[pgof];
member->mmap = memberdata;
- member->mlen = idx_ptr->flength + ( idx_ptr->foffset % pgsz );
+ member->mlen = idx_ptr->flength + pgof;
return member;
}
@@ -176,10 +176,11 @@ int lar_close( lar_archive *ar )
lar_archive * lar_find_archive( const char *package, const char *path )
{
- int seg = 1;
- int len = 0;
- int pln = 0;
- int i, j;
+ uint32_t i;
+ uint32_t j;
+ uint32_t seg = 1;
+ uint32_t len = 0;
+ uint32_t pln = 0;
struct stat s;
LAR_FNAME(buffer);
@@ -211,8 +212,7 @@ lar_archive * lar_find_archive( const char *package, const char *path )
buffer[pln+i] = ( package[i] == '.' ) ? LAR_DIRSEP : package[i];
}
- buffer[pln+i+0] = '.'; buffer[pln+i+1] = 'l'; buffer[pln+i+2] = 'a';
- buffer[pln+i+3] = 'r'; buffer[pln+i+4] = '\0';
+ strcpy(&buffer[pln+i], ".lar");
if( (stat(buffer, &s) > -1) && (s.st_mode & S_IFREG) )
return lar_open(buffer);
@@ -236,8 +236,7 @@ lar_member * lar_find_member( lar_archive *ar, const char *package )
buffer[len] = ( package[len] == '.' ) ? '/' : package[len];
}
- buffer[len+0] = '.'; buffer[len+1] = 'l'; buffer[len+2] = 'u';
- buffer[len+3] = 'a'; buffer[len+4] = '\0';
+ strcpy(&buffer[len], ".lua");
return lar_open_member(ar, buffer);
}