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synced 2024-09-09 09:51:34 -07:00
scan_includes: add --strict so it doesn't have to be default
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parent
27ba16d827
commit
fe38946b0e
@ -2,12 +2,24 @@
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#include <stdlib.h>
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#include <string.h>
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#include <stdbool.h>
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#include <getopt.h>
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void usage(void) {
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printf("Usage: scan_includes filename\n");
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exit(1);
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printf("Usage: scan_includes [-h] [-s] filename\n"
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"-h, --help\n"
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" Print usage and exit\n"
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"-s, --strict\n"
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" Fail if a file cannot be read\n");
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}
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struct Options {
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bool help;
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bool strict;
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};
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struct Options Options = {0};
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void scan_file(char* filename) {
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FILE* f;
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long size;
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@ -17,9 +29,13 @@ void scan_file(char* filename) {
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int length;
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f = fopen(filename, "r");
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if (f == NULL) {
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fprintf(stderr, "Could not open file: '%s'\n", filename);
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exit(1);
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if (!f) {
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if (Options.strict) {
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fprintf(stderr, "Could not open file: '%s'\n", filename);
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exit(1);
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} else {
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return;
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}
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}
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fseek(f, 0, SEEK_END);
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@ -68,10 +84,43 @@ void scan_file(char* filename) {
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free(orig);
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}
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int main(int argc, char* argv[]) {
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if (argc < 2) {
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usage();
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void get_args(int argc, char *argv[]) {
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while (1) {
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struct option long_options[] = {
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{"strict", no_argument, 0, 's'},
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{"help", no_argument, 0, 'h'},
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{0}
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};
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int i = 0;
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int opt = getopt_long(argc, argv, "sh", long_options, &i);
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if (opt == -1) {
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break;
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}
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switch (opt) {
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case 's':
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Options.strict = true;
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break;
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case 'h':
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Options.help = true;
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break;
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}
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}
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scan_file(argv[1]);
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}
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int main(int argc, char* argv[]) {
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get_args(argc, argv);
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argc -= optind;
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argv += optind;
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if (Options.help) {
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usage();
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return 0;
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}
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if (argc < 1) {
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usage();
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exit(1);
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}
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scan_file(argv[0]);
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return 0;
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}
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