Initial implementation of list and extract operations.

[liblbx.git] / src / lbxtool.c

diff --git a/src/lbxtool.c b/src/lbxtool.c
index 96c8ddd06e8ef87c7a016f2923e4cfac9967fa98..a220cea67d858fd881939a3396f9ad0683cacd37 100644 (file)
--- a/src/lbxtool.c
+++ b/src/lbxtool.c
@@ -18,17 +18,78 @@ enum {
 };
 
 int list(FILE *f, const char *name, int verbose) {
-       LBX *lbx = lbx_fopen(f, name);
+       LBX *lbx;
+       size_t nfiles;
+       unsigned int i;
+
+       lbx = lbx_fopen(f, name);
+       if (!lbx) {
+               errmsg("failed to open archive: %s.\n", lbx_strerror());
+               return EXIT_FAILURE;
+       }
+
+       nfiles = lbx_numfiles(lbx);
+       if (verbose) {
+               printf("Files in archive: %zu\n", nfiles);
+       }
+
+       for (i = 0; i < nfiles; i++) {
+               struct lbx_statbuf stat;
+
+               lbx_stat(lbx, i, &stat);
+               printf("%s", stat.name);
+               if (verbose) {
+                       printf(" size=%zu bytes", stat.size);
+               }
+
+               putchar('\n');
+       }
+
+       lbx_close(lbx);
+       return EXIT_SUCCESS;
+}
+
+int extract(FILE *f, const char *name, int verbose) {
+       LBX *lbx;
+       size_t nfiles;
+       unsigned int i;
+
+       lbx = lbx_fopen(f, name);
        if (!lbx) {
                errmsg("failed to open archive: %s.\n", lbx_strerror());
                return EXIT_FAILURE;
        }
 
+       nfiles = lbx_numfiles(lbx);
        if (verbose) {
-               printf("Files in archive: %zd\n", lbx_numfiles(lbx));
+               printf("Files in archive: %zu\n", nfiles);
+       }
+
+       for (i = 0; i < nfiles; i++) {
+               struct lbx_statbuf stat;
+               size_t rc;
+               FILE *of;
+
+               lbx_stat(lbx, i, &stat);
+               of = fopen(stat.name, "wbx");
+               if (!of) {
+                       errmsg("failed to create output file %s: %m.\n",
+                                                            stat.name);
+                       break;
+               }
+
+               if (verbose) printf("extracting %s...\n", stat.name);
+               rc = lbx_extract(lbx, i, of);
+               if (rc < stat.size) {
+                       errmsg("error extracting %s: %s.\n",
+                              stat.name, lbx_strerror());
+                       break;
+               }
+               if (verbose) printf("wrote %zu bytes.\n", rc);
        }
 
        lbx_close(lbx);
+       return EXIT_SUCCESS;
 }
 
 int main(int argc, char **argv)
@@ -88,7 +149,7 @@ int main(int argc, char **argv)
        case MODE_LIST:
                return list(f, name, verbose);
        case MODE_EXTRACT:
-               return EXIT_SUCCESS;
+               return extract(f, name, verbose);
        }
 
        fprintf(stderr, "%s: you must specify a mode.\n", progname);