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pack cmd: seperate file line reader from file list parser

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Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
This commit is contained in:
David Oberhollenzer 2019-01-27 16:41:20 +01:00
parent 53194aa2ac
commit 47e237688b
4 changed files with 73 additions and 58 deletions
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1
Makefile.am
View file

@ -25,6 +25,7 @@ EXTRA_DIST = autogen.sh
pkg_SOURCES += main/cmd/pack/filelist.c main/cmd/pack/filelist_read.c
pkg_SOURCES += main/cmd/pack/write_toc.c main/cmd/pack/write_files.c
pkg_SOURCES += main/cmd/pack/pack.h main/cmd/pack/pack.c
pkg_SOURCES += main/cmd/pack/input_file.c
# dump command
pkg_SOURCES += main/cmd/dump/dump.c main/cmd/dump/dump.h main/cmd/dump/dump_toc.c

59
main/cmd/pack/filelist_read.c
View file

@ -11,59 +11,6 @@ static const struct {
#define NUM_LINE_HOOKS (sizeof(line_hooks) / sizeof(line_hooks[0]))
static int prefetch_line(input_file_t *f)
{
char *line = NULL;
size_t n = 0;
ssize_t ret;
free(f->line);
f->line = NULL;
errno = 0;
ret = getline(&line, &n, f->f);
if (ret < 0) {
if (errno != 0) {
perror(f->filename);
free(line);
return -1;
}
free(line);
return 1;
}
n = strlen(line);
while (n >0 && isspace(line[n - 1]))
--n;
line[n] = '\0';
f->line = line;
f->linenum += 1;
return 0;
}
static void cleanup_file(input_file_t *f)
{
fclose(f->f);
free(f->line);
}
static int open_file(input_file_t *f, const char *filename)
{
memset(f, 0, sizeof(*f));
f->filename = filename;
f->f = fopen(filename, "r");
if (f->f == NULL) {
perror(f->filename);
return -1;
}
return 0;
}
image_entry_t *filelist_read(const char *filename)
{
image_entry_t *ent, *list = NULL;
@ -82,11 +29,7 @@ image_entry_t *filelist_read(const char *filename)
if (ret > 0)
break;
for (ptr = f.line; isspace(*ptr); ++ptr)
;
if (*ptr == '\0' || *ptr == '#')
continue;
ptr = f.line;
for (i = 0; i < NUM_LINE_HOOKS; ++i) {
len = strlen(line_hooks[i].name);

65
main/cmd/pack/input_file.c Normal file
View file

@ -0,0 +1,65 @@
#include "pack.h"
int prefetch_line(input_file_t *f)
{
char *line, *ptr;
ssize_t ret;
size_t n;
retry:
free(f->line);
f->line = NULL;
errno = 0;
line = NULL;
n = 0;
ret = getline(&line, &n, f->f);
if (ret < 0) {
if (errno != 0) {
perror(f->filename);
free(line);
return -1;
}
free(line);
return 1;
}
n = strlen(line);
while (n >0 && isspace(line[n - 1]))
--n;
line[n] = '\0';
f->line = line;
f->linenum += 1;
for (ptr = f->line; isspace(*ptr); ++ptr)
;
if (*ptr == '\0' || *ptr == '#')
goto retry;
if (ptr != f->line)
memmove(f->line, ptr, strlen(ptr) + 1);
return 0;
}
void cleanup_file(input_file_t *f)
{
fclose(f->f);
free(f->line);
}
int open_file(input_file_t *f, const char *filename)
{
memset(f, 0, sizeof(*f));
f->filename = filename;
f->f = fopen(filename, "r");
if (f->f == NULL) {
perror(f->filename);
return -1;
}
return 0;
}

6
main/cmd/pack/pack.h
View file

@ -40,4 +40,10 @@ int write_toc(pkg_writer_t *wr, image_entry_t *list, compressor_t *cmp);
int write_files(pkg_writer_t *wr, image_entry_t *list, compressor_t *cmp);
int prefetch_line(input_file_t *f);
void cleanup_file(input_file_t *f);
int open_file(input_file_t *f, const char *filename);
#endif /* PACK_H */