ref: 4905c06d9a661cb71b7a6e4dec421996cbaa5779
dir: /src/cmd/objdump.c/
#include <errno.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <scc/arg.h> #include <scc/mach.h> char *argv0; static char *filename; static int status; static void error(char *fmt, ...) { va_list va; va_start(va, fmt); fprintf(stderr, "objdump: %s: ", filename); vfprintf(stderr, fmt, va); putc('\n', stderr); va_end(va); status = EXIT_FAILURE; } /* * TODO: Dummy implementation used only in the assembler tests */ static void dump(char *fname) { int c, n; FILE *fp; filename = fname; if ((fp = fopen(fname, "rb")) == NULL) { error("%s", strerror(errno)); return; } puts("data:"); for (n = 1; (c = getc(fp)) != EOF; n++) printf("%02X%c", c, (n%16 == 0) ? '\n' : ' '); if (n%16 != 0) putchar('\n'); if (ferror(fp)) error("%s", strerror(errno)); fclose(fp); } static void usage(void) { fputs("usage: objdump file ...\n", stderr); exit(1); } int main(int argc, char *argv[]) { ARGBEGIN { default: usage(); } ARGEND if (argc == 0) dump("a.out"); else while (*argv) { dump(*argv++); } if (fclose(stdout) == EOF) { fprintf(stderr, "objdump: writing output: %s\n", strerror(errno)); return EXIT_FAILURE; } return status; }