From 49a767d3b62d948882179fcca2f9194da626f056 Mon Sep 17 00:00:00 2001 From: Patrick McDermott Date: Tue, 18 Apr 2023 13:53:52 -0400 Subject: opk: Split from main --- (limited to 'src/main.c') diff --git a/src/main.c b/src/main.c index 8b80a1f..1fecdfe 100644 --- a/src/main.c +++ b/src/main.c @@ -17,287 +17,49 @@ * along with opkg-opk. If not, see . */ -#include #include #include -#include -#include #include "defs.h" -#include "gzip.h" -#include "ustar.h" - -struct _opkg_opk_main_opk { - FILE *file; - char file_buffer[8192]; - struct opkg_opk_gzip *outer_gzip; - struct opkg_opk_ustar *outer_ustar; - char *version_buffer; - size_t version_size; - struct opkg_opk_gzip *inner_gzip; - struct opkg_opk_ustar *inner_ustar; -}; - -static int -_opkg_opk_main_file_read(void *user_data, char **buffer, size_t *size) -{ - struct _opkg_opk_main_opk *opk = user_data; - - *buffer = opk->file_buffer; - *size = fread(opk->file_buffer, 1, sizeof(opk->file_buffer), - opk->file); - if (feof(opk->file)) { - return OPKG_OPK_END; - } else if (ferror(opk->file) || *size == 0) { - return OPKG_OPK_ERROR; - } else { - return OPKG_OPK_OK; - } -} - -static int -_opkg_opk_main_init_outer(struct _opkg_opk_main_opk *opk, const char *file_name) -{ - /* Open outer archive. */ - opk->file = fopen(file_name, "rb"); - if (opk->file == NULL) { - fprintf(stderr, "Error: Failed to open file \"%s\"\n", - file_name); - goto error0; - } - - /* Initialize outer gzip decompressor. */ - opk->outer_gzip = opkg_opk_gzip_init(&_opkg_opk_main_file_read, opk); - if (opk->outer_gzip == NULL) { - fputs("Error: Failed to initialize\n", stderr); - goto error1; - } - - /* Initialize outer ustar unarchiver. */ - opk->outer_ustar = opkg_opk_ustar_init(opk->outer_gzip); - if (opk->outer_ustar == NULL) { - fputs("Error: Failed to initialize\n", stderr); - goto error2; - } - - /* Check package version. */ - if (opkg_opk_ustar_seek(opk->outer_ustar, 1, "debian-binary") != - OPKG_OPK_OK) { - fputs("Error: Failed to find \"debian-binary\" in archive\n", - stderr); - goto error3; - } - if (opkg_opk_ustar_read(opk->outer_ustar, - &opk->version_buffer, &opk->version_size) != - OPKG_OPK_OK) { - fputs("Error: Failed to read \"debian-binary\" in archive\n", - stderr); - goto error3; - } - if (opk->version_size < 4 || strncmp(opk->version_buffer, "2.", 2) != 0) - { - fputs("Error: Unsupported package version\n", stderr); - goto error3; - } - - return OPKG_OPK_OK; - - error3: - opkg_opk_ustar_free(opk->outer_ustar); - error2: - opkg_opk_gzip_free(opk->outer_gzip); - error1: - fclose(opk->file); - error0: - return OPKG_OPK_ERROR; -} - -static int -_opkg_opk_main_init_inner(struct _opkg_opk_main_opk *opk, const char *member) -{ - int ret; - - /* Finish reading previous inner archive, if any. */ - while ((ret = opkg_opk_ustar_read(opk->outer_ustar, NULL, NULL)) == - OPKG_OPK_OK); - if (ret == OPKG_OPK_ERROR) { - fputs("Error: Failed to read archive\n", stderr); - return OPKG_OPK_ERROR; - } - - /* Find requested inner archive. */ - if (opkg_opk_ustar_seek(opk->outer_ustar, 1, member) != - OPKG_OPK_OK) { - fprintf(stderr, "Error: Failed to find \"%s\" in archive\n", - member); - return OPKG_OPK_ERROR; - } - - /* Initialize inner gzip decompressor. */ - opk->inner_gzip = opkg_opk_gzip_init( - (opkg_opk_gzip_read_func *) &opkg_opk_ustar_read, - opk->outer_ustar); - if (opk->inner_gzip == NULL) { - fputs("Error: Failed to initialize\n", stderr); - return OPKG_OPK_ERROR; - } - - /* Initialize inner ustar unarchiver. */ - opk->inner_ustar = opkg_opk_ustar_init(opk->inner_gzip); - if (opk->inner_ustar == NULL) { - fputs("Error: Failed to initialize\n", stderr); - opkg_opk_gzip_free(opk->inner_gzip); - return OPKG_OPK_ERROR; - } - - return OPKG_OPK_OK; -} - -static int -_opkg_opk_main_read_control(struct opkg_opk_ustar *ustar) -{ - char *buffer; - size_t size; - int ret; - - if (opkg_opk_ustar_seek(ustar, 2, "control", "./control") != - OPKG_OPK_OK) { - fputs("Error: Failed to find control file\n", stderr); - return OPKG_OPK_ERROR; - } - while ((ret = opkg_opk_ustar_read(ustar, &buffer, &size)) == - OPKG_OPK_OK) { - fwrite(buffer, 1, size, stdout); - } - if (ret == OPKG_OPK_ERROR) { - fputs("Error: Failed to read control file\n", stderr); - return OPKG_OPK_ERROR; - } - - return OPKG_OPK_OK; -} - -static int -_opkg_opk_main_list_members(struct opkg_opk_ustar *ustar) -{ - struct opkg_opk_ustar_member *head; - struct opkg_opk_ustar_member *tail; - struct opkg_opk_ustar_member *member; - int ret; - size_t uname_len; - size_t uname_len_max; - size_t gname_len; - size_t gname_len_max; - uint64_t size_max; - char fmt[29]; - /* "%c%s %-32s/%-32s %11d %s %s\n" */ - char mode[10]; - char mtime[20]; - - /* Build singly-linked list and find maximum column widths. */ - head = NULL; - uname_len_max = 0; - gname_len_max = 0; - size_max = 0; - while ((ret = opkg_opk_ustar_list(ustar, &member)) == OPKG_OPK_OK) { - if (head == NULL) { - head = member; - } else { - tail->next = member; - } - tail = member; - uname_len = strlen(member->uname); - if (uname_len > uname_len_max) { - uname_len_max = uname_len; - } - gname_len = strlen(member->gname); - if (gname_len > gname_len_max) { - gname_len_max = gname_len; - } - if (member->size > size_max) { - size_max = member->size; - } - } - if (ret == OPKG_OPK_ERROR) { - fputs("Error: Failed to list data files\n", stderr); - return OPKG_OPK_ERROR; - } - tail->next = NULL; - - /* Print and free members. */ - snprintf(fmt, sizeof(fmt), "%%c%%s %%-%zus/%%-%zus %%%lid %%s %%s\n", - uname_len, gname_len, lrint(ceil(log10(size_max)))); - for (member = head; member != NULL;) { - if (member->mode & 00400) mode[0] = 'r'; else mode[0] = '-'; - if (member->mode & 00200) mode[1] = 'w'; else mode[1] = '-'; - if (member->mode & 00100) mode[2] = 'x'; else mode[2] = '-'; - if (member->mode & 04000) mode[2] = 's'; - if (member->mode & 00040) mode[3] = 'r'; else mode[3] = '-'; - if (member->mode & 00020) mode[4] = 'w'; else mode[4] = '-'; - if (member->mode & 00010) mode[5] = 'x'; else mode[5] = '-'; - if (member->mode & 02000) mode[5] = 's'; - if (member->mode & 00004) mode[6] = 'r'; else mode[6] = '-'; - if (member->mode & 00002) mode[7] = 'w'; else mode[7] = '-'; - if (member->mode & 00001) mode[8] = 'x'; else mode[8] = '-'; - if (member->mode & 01000) mode[8] = 't'; - mode[9] = '\0'; - strftime(mtime, sizeof(mtime), "%Y-%m-%d %H:%M:%S", - localtime(&member->mtime)); - printf(fmt, - member->type, mode, - member->uname, member->gname, - member->size, mtime, member->name); - head = member; - member = member->next; - free(head); - } - - return OPKG_OPK_OK; -} +#include "opk.h" int main(int argc, char *argv[]) { - struct _opkg_opk_main_opk opk; + struct opkg_opk_opk *opk; /* Initialize outer archive. */ - if (_opkg_opk_main_init_outer(&opk, argv[1]) != OPKG_OPK_OK) { + opk = opkg_opk_opk_init_outer(argv[1]); + if (opk == NULL) { goto error0; } /* Read control file. */ - if (_opkg_opk_main_init_inner(&opk, "control.tar.gz") != OPKG_OPK_OK) { + if (opkg_opk_opk_init_inner(opk, "control.tar.gz") != OPKG_OPK_OK) { goto error1; } - if (_opkg_opk_main_read_control(opk.inner_ustar) != OPKG_OPK_OK) { + if (opkg_opk_opk_read_control(opk) != OPKG_OPK_OK) { goto error2; } - opkg_opk_ustar_free(opk.inner_ustar); - opkg_opk_gzip_free(opk.inner_gzip); + opkg_opk_opk_free_inner(opk); puts(""); /* List data files. */ - if (_opkg_opk_main_init_inner(&opk, "data.tar.gz") != OPKG_OPK_OK) { + if (opkg_opk_opk_init_inner(opk, "data.tar.gz") != OPKG_OPK_OK) { goto error1; } - if (_opkg_opk_main_list_members(opk.inner_ustar) != OPKG_OPK_OK) { + if (opkg_opk_opk_list_members(opk) != OPKG_OPK_OK) { goto error2; } - opkg_opk_ustar_free(opk.inner_ustar); - opkg_opk_gzip_free(opk.inner_gzip); + opkg_opk_opk_free_inner(opk); - opkg_opk_ustar_free(opk.outer_ustar); - opkg_opk_gzip_free(opk.outer_gzip); - fclose(opk.file); + opkg_opk_opk_free_outer(opk); return EXIT_SUCCESS; error2: - opkg_opk_ustar_free(opk.inner_ustar); - opkg_opk_gzip_free(opk.inner_gzip); + opkg_opk_opk_free_inner(opk); error1: - opkg_opk_ustar_free(opk.outer_ustar); - opkg_opk_gzip_free(opk.outer_gzip); - fclose(opk.file); + opkg_opk_opk_free_outer(opk); error0: return EXIT_FAILURE; } -- cgit v0.9.1