93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
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#include <zipfile/zipfile.h>
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#include <stdio.h>
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#include <stdlib.h>
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void dump_zipfile(FILE* to, zipfile_t file);
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int
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main(int argc, char** argv)
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{
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FILE* f;
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size_t size, unsize;
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void* buf;
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void* scratch;
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zipfile_t zip;
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zipentry_t entry;
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int err;
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enum { HUH, LIST, UNZIP } what = HUH;
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if (strcmp(argv[2], "-l") == 0 && argc == 3) {
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what = LIST;
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}
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else if (strcmp(argv[2], "-u") == 0 && argc == 5) {
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what = UNZIP;
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}
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else {
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fprintf(stderr, "usage: test_zipfile ZIPFILE -l\n"
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" lists the files in the zipfile\n"
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" test_zipfile ZIPFILE -u FILENAME SAVETO\n"
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" saves FILENAME from the zip file into SAVETO\n");
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return 1;
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}
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f = fopen(argv[1], "r");
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if (f == NULL) {
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fprintf(stderr, "couldn't open %s\n", argv[1]);
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return 1;
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}
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fseek(f, 0, SEEK_END);
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size = ftell(f);
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rewind(f);
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buf = malloc(size);
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fread(buf, 1, size, f);
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zip = init_zipfile(buf, size);
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if (zip == NULL) {
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fprintf(stderr, "inti_zipfile failed\n");
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return 1;
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}
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fclose(f);
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switch (what)
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{
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case LIST:
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dump_zipfile(stdout, zip);
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break;
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case UNZIP:
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entry = lookup_zipentry(zip, argv[3]);
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if (entry == NULL) {
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fprintf(stderr, "zip file '%s' does not contain file '%s'\n",
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argv[1], argv[1]);
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return 1;
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}
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f = fopen(argv[4], "w");
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if (f == NULL) {
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fprintf(stderr, "can't open file for writing '%s'\n", argv[4]);
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return 1;
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}
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unsize = get_zipentry_size(entry);
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size = unsize * 1.001;
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scratch = malloc(size);
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printf("scratch=%p\n", scratch);
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err = decompress_zipentry(entry, scratch, size);
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if (err != 0) {
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fprintf(stderr, "error decompressing file\n");
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return 1;
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}
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fwrite(scratch, unsize, 1, f);
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free(scratch);
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fclose(f);
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break;
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}
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free(buf);
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return 0;
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}
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