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view lwar/add.c @ 504:16bd8effb2f6
Update lwcc driver to actually do something useful sometimes
Make lwcc driver actually find the correct filenames for the preprocessor
and compiler.
Construct the preprocessor argument list correctly instead of assigning all
arguments to argv[0], including the trailing NULL argument.
Instruct lwasm to use the object file format.
Correct state setting for -S and -c options so they stop after the correct
phases of compilation.
author | William Astle <lost@l-w.ca> |
---|---|
date | Thu, 24 Oct 2019 22:41:04 -0600 |
parents | 45df37e81741 |
children |
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/* add.c Copyright © 2009 William Astle This file is part of LWAR. LWAR is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. Implements the program startup code */ #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include "lwar.h" void do_add(void) { FILE *f; unsigned char buf[8]; long l; int c; FILE *f2; int i; f = fopen(archive_file, "rb+"); if (!f) { if (errno == ENOENT) { f = fopen(archive_file, "wb"); if (f) { fputs("LWAR1V", f); goto doadd; } } perror("Cannot open archive file"); } (void)(fread(buf, 1, 6, f) && 1); if (memcmp("LWAR1V", buf, 6)) { fprintf(stderr, "%s is not a valid archive file.\n", archive_file); exit(1); } for (;;) { c = fgetc(f); if (c == EOF && ferror(f)) { perror("Reading archive file"); exit(1); } if (c == EOF) goto doadd; if (!c) { fseek(f, -1, SEEK_CUR); goto doadd; } // find the end of the file name while (c) { c = fgetc(f); if (c == EOF || ferror(f)) { fprintf(stderr, "Bad archive file\n"); exit(1); } } // get length of archive member l = 0; c = fgetc(f); l = c << 24; c = fgetc(f); l |= c << 16; c = fgetc(f); l |= c << 8; c = fgetc(f); l |= c; fseek(f, l, SEEK_CUR); } // back up to the NUL byte at the end of the file fseek(f, -1, SEEK_CUR); doadd: for (i = 0; i < nfiles; i++) { f2 = fopen(files[i], "rb"); if (!f2) { fprintf(stderr, "Cannot open file %s:", files[i]); perror(""); exit(1); } (void)(fread(buf, 1, 6, f2) && 1); if (mergeflag && !memcmp("LWAR1V", buf, 6)) { // add archive contents... for (;;) { c = fgetc(f2); if (c == EOF || ferror(f2)) { perror("Reading input archive file"); exit(1); } if (c == EOF) break; if (!c) { break; } // find the end of the file name while (c) { fputc(c, f); c = fgetc(f2); if (c == EOF || ferror(f)) { fprintf(stderr, "Bad input archive file\n"); exit(1); } } fputc(0, f); // get length of archive member l = 0; c = fgetc(f2); fputc(c, f); l = c << 24; c = fgetc(f2); fputc(c, f); l |= c << 16; c = fgetc(f2); fputc(c, f); l |= c << 8; c = fgetc(f2); fputc(c, f); l |= c; while (l) { c = fgetc(f2); fputc(c, f); l--; } } fclose(f2); continue; } fseek(f2, 0, SEEK_END); l = ftell(f2); fseek(f2, 0, SEEK_SET); fputs(get_file_name(files[i]), f); fputc(0, f); fputc(l >> 24, f); fputc((l >> 16) & 0xff, f); fputc((l >> 8) & 0xff, f); fputc(l & 0xff, f); while (l) { c = fgetc(f2); fputc(c, f); l--; } } // flag end of file fputc(0, f); }