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Refactor function, add its declaration to header

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This commit is contained in:
Stephen Seo 2024-10-04 11:19:57 +09:00
parent c7cd445139
commit 7b6929397e
2 changed files with 51 additions and 45 deletions
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90
src/archiver.c
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@ -99,49 +99,6 @@ void cleanup_temp_filename_delete(void ***ptrs_array) {
#endif
}
char *filename_to_absolute_path(const char *filename) {
#if SIMPLE_ARCHIVER_PLATFORM == SIMPLE_ARCHIVER_PLATFORM_COSMOPOLITAN || \
SIMPLE_ARCHIVER_PLATFORM == SIMPLE_ARCHIVER_PLATFORM_MAC || \
SIMPLE_ARCHIVER_PLATFORM == SIMPLE_ARCHIVER_PLATFORM_LINUX
__attribute__((cleanup(simple_archiver_helper_cleanup_malloced))) void *path =
malloc(strlen(filename) + 1);
strncpy(path, filename, strlen(filename) + 1);
char *path_dir = dirname(path);
if (!path_dir) {
return NULL;
}
__attribute__((
cleanup(simple_archiver_helper_cleanup_malloced))) void *dir_realpath =
realpath(path_dir, NULL);
if (!dir_realpath) {
return NULL;
}
// Recreate "path" since it may have been modified by dirname().
simple_archiver_helper_cleanup_malloced(&path);
path = malloc(strlen(filename) + 1);
strncpy(path, filename, strlen(filename) + 1);
char *filename_basename = basename(path);
if (!filename_basename) {
return NULL;
}
// Get combined full path to file.
char *fullpath =
malloc(strlen(dir_realpath) + 1 + strlen(filename_basename) + 1);
strncpy(fullpath, dir_realpath, strlen(dir_realpath) + 1);
fullpath[strlen(dir_realpath)] = '/';
strncpy(fullpath + strlen(dir_realpath) + 1, filename_basename,
strlen(filename_basename) + 1);
return fullpath;
#endif
return NULL;
}
int write_files_fn(void *data, void *ud) {
const SDArchiverFileInfo *file_info = data;
SDArchiverState *state = ud;
@ -760,7 +717,7 @@ int write_files_fn(void *data, void *ud) {
// First get absolute path of link.
__attribute__((cleanup(
simple_archiver_helper_cleanup_malloced))) void *link_abs_path =
filename_to_absolute_path(file_info->filename);
simple_archiver_file_abs_path(file_info->filename);
if (!link_abs_path) {
fprintf(stderr, "WARNING: Failed to get absolute path of link!\n");
} else {
@ -895,7 +852,7 @@ int filenames_to_abs_map_fn(void *data, void *ud) {
}
// Get combined full path to file.
char *fullpath = filename_to_absolute_path(file_info->filename);
char *fullpath = simple_archiver_file_abs_path(file_info->filename);
if (!fullpath) {
return 1;
}
@ -3277,3 +3234,46 @@ char *simple_archiver_filenames_to_relative_path(const char *from_abs,
return rel_path;
}
char *simple_archiver_file_abs_path(const char *filename) {
#if SIMPLE_ARCHIVER_PLATFORM == SIMPLE_ARCHIVER_PLATFORM_COSMOPOLITAN || \
SIMPLE_ARCHIVER_PLATFORM == SIMPLE_ARCHIVER_PLATFORM_MAC || \
SIMPLE_ARCHIVER_PLATFORM == SIMPLE_ARCHIVER_PLATFORM_LINUX
__attribute__((cleanup(simple_archiver_helper_cleanup_malloced))) void *path =
malloc(strlen(filename) + 1);
strncpy(path, filename, strlen(filename) + 1);
char *path_dir = dirname(path);
if (!path_dir) {
return NULL;
}
__attribute__((
cleanup(simple_archiver_helper_cleanup_malloced))) void *dir_realpath =
realpath(path_dir, NULL);
if (!dir_realpath) {
return NULL;
}
// Recreate "path" since it may have been modified by dirname().
simple_archiver_helper_cleanup_malloced(&path);
path = malloc(strlen(filename) + 1);
strncpy(path, filename, strlen(filename) + 1);
char *filename_basename = basename(path);
if (!filename_basename) {
return NULL;
}
// Get combined full path to file.
char *fullpath =
malloc(strlen(dir_realpath) + 1 + strlen(filename_basename) + 1);
strncpy(fullpath, dir_realpath, strlen(dir_realpath) + 1);
fullpath[strlen(dir_realpath)] = '/';
strncpy(fullpath + strlen(dir_realpath) + 1, filename_basename,
strlen(filename_basename) + 1);
return fullpath;
#endif
return NULL;
}

6
src/archiver.h
View file

@ -92,4 +92,10 @@ int simple_archiver_de_compress(int pipe_fd_in[2], int pipe_fd_out[2],
char *simple_archiver_filenames_to_relative_path(const char *from_abs,
const char *to_abs);
/// Gets the absolute path to a file given a path to a file.
/// Should also work on symlinks such that the returned string is the path to
/// the link itself, not what it points to.
/// Non-NULL on success, and must be free'd if non-NULL.
char *simple_archiver_file_abs_path(const char *filename);
#endif