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authorB. Watson <urchlay@slackware.uk>2024-05-19 05:11:11 -0400
committerB. Watson <urchlay@slackware.uk>2024-05-19 05:11:11 -0400
commitffeba14c10e1cf7f2936cd9249a352474c0e9526 (patch)
tree6a2e70e91f458ce758a397223140f35448bf36a7 /unprotbas.c
parent8ea53b7cae9fedf9432e9c83008597dbdb34f8d3 (diff)
downloadbw-atari8-tools-ffeba14c10e1cf7f2936cd9249a352474c0e9526.tar.gz
unprotbas: exit status 2 for unprotected program; add -c (check only).
Diffstat (limited to 'unprotbas.c')
-rw-r--r--unprotbas.c47
1 files changed, 32 insertions, 15 deletions
diff --git a/unprotbas.c b/unprotbas.c
index 8dc6844..845c75b 100644
--- a/unprotbas.c
+++ b/unprotbas.c
@@ -42,6 +42,8 @@ char *self;
int keepvars = 0;
int forcevars = 0;
int keepgarbage = 1;
+int checkonly = 0;
+int was_protected = 0;
int verbose = 0;
/* file handles */
@@ -57,6 +59,7 @@ void die(const char *msg) {
int readfile(void) {
int got = fread(data, 1, 65535, input_file);
fprintf(stderr, "read %d bytes\n", got);
+ fclose(input_file);
return got;
}
@@ -369,6 +372,7 @@ void print_help(void) {
fprintf(stderr, "-f: force variable name table rebuild\n");
fprintf(stderr, "-n: do not rebuild variable name table, even if it's invalid\n");
fprintf(stderr, "-g: remove trailing garbage, if present\n");
+ fprintf(stderr, "-c: check only; no output file\n");
fprintf(stderr, "Use - as a filename to read from stdin and/or write to stdout\n");
}
@@ -432,6 +436,7 @@ void parse_args(int argc, char **argv) {
case 'f': forcevars++; break;
case 'n': keepvars++; break;
case 'g': keepgarbage = 0; break;
+ case 'c': checkonly = 1; break;
case 0:
if(!input_file)
open_input(NULL);
@@ -445,7 +450,7 @@ void parse_args(int argc, char **argv) {
} else {
if(!input_file)
open_input(*argv);
- else if(!output_file)
+ else if(!checkonly && !output_file)
open_output(*argv);
else
invalid_args(*argv);
@@ -453,7 +458,7 @@ void parse_args(int argc, char **argv) {
}
if(!input_file) die("no input file given (use - for stdin)");
- if(!output_file) die("no output file given (use - for stdout)");
+ if(!checkonly && !output_file) die("no output file given (use - for stdout)");
if(keepvars && forcevars) die("-f and -n are mutually exclusive");
}
@@ -465,26 +470,38 @@ int main(int argc, char **argv) {
if(lomem) die("This doesn't look like an Atari BASIC program (no $0000 signature)");
- /*
- fprintf(stderr, "data at STMTAB (we hope):\n");
- for(int i=codestart; i<filelen; i++) {
- fprintf(stderr, "%02x ", data[i]);
- }
- fprintf(stderr, "\n");
- */
-
if(!keepvars) {
- if(fixvars())
+ if(fixvars()) {
+ was_protected = 1;
fprintf(stderr, "Variable names replaced\n");
- else
+ } else {
fprintf(stderr, "Variable names were already OK\n");
+ }
}
- if(fixcode())
+ if(fixcode()) {
fprintf(stderr, "Fixed invalid offset in code\n");
- else
+ was_protected = 1;
+ } else {
fprintf(stderr, "No invalid offsets\n");
+ }
+
+ if(was_protected)
+ fprintf(stderr, "Program was protected.\n");
+ else
+ fprintf(stderr, "Program was not protected.\n");
+
+ if(checkonly) {
+ fprintf(stderr, "Check-only mode; no output written.\n");
+ if(was_protected)
+ return 0;
+ else
+ return 2;
+ }
+
+ int got = fwrite(data, 1, filelen, output_file);
+ fclose(output_file);
+ fprintf(stderr, "wrote %d bytes\n", got);
- fwrite(data, filelen, 1, output_file);
return 0;
}