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author | Nicholas Tay <nick@windblume.net> | 2024-04-06 20:43:54 +1100 |
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committer | Nicholas Tay <nick@windblume.net> | 2024-04-06 20:43:54 +1100 |
commit | db24e6bfa08f9745c80d16541832f28e664becf6 (patch) | |
tree | 0f2f59ac831e937a626d23d3d8a6d2e5af1756ae | |
parent | a9cb98a3e83cc357cf15bff1327a86b99f869549 (diff) | |
download | passgen-db24e6bfa08f9745c80d16541832f28e664becf6.tar.gz passgen-db24e6bfa08f9745c80d16541832f28e664becf6.tar.bz2 passgen-db24e6bfa08f9745c80d16541832f28e664becf6.zip |
Let it leak
Short-lived program, let's just leave it to the OS!
-rw-r--r-- | passgen.c | 39 |
1 files changed, 8 insertions, 31 deletions
@@ -86,12 +86,6 @@ unsigned int get_rng(void) #ifdef USE_GETENTROPY getentropy(&r, sizeof(r)); #elif defined (USE_WINCRYPT) - /* - * TODO: I'd prefer if this went through the standard cleanup. - * Need to figure out how to do that, given the return value - * here. Maybe check out some other projects to see how this is - * handled, lol - */ if (!CryptGenRandom(win_rng, sizeof(r), (BYTE *) &r)) { perror("CryptGenRandom"); exit(EXIT_FAILURE); @@ -131,7 +125,6 @@ char *build_grammar(int triplets, int specials, int numbers, int *grammar_size) int main(int argc, char *argv[]) { - int ret_code = EXIT_SUCCESS; char *grammar = grammar_buf; int grammar_size = sizeof(DEFAULT_GRAMMAR) - 1; char *password = password_buf; @@ -153,11 +146,11 @@ Compile-time options (edit `config.h` to customise!):\n\ for (int i = 0; i < classes_n; ++i) { printf(" - '%c' => \"%s\"\n", classes[i].c, classes[i].letters); } - return 0; + return EXIT_SUCCESS; } else if (strcmp(argv[1], "--version") == 0) { - printf("passgen v"VERSION"\n"); - return 0; - } + printf("passgen v"VERSION"\n"); + return EXIT_SUCCESS; + } /* Take first argument as the grammar */ grammar = argv[1]; grammar_size = strlen(grammar); @@ -169,8 +162,7 @@ Compile-time options (edit `config.h` to customise!):\n\ grammar = build_grammar(atoi(argv[1]), atoi(argv[2]), atoi(argv[3]), &grammar_size); if (grammar == NULL) { fprintf(stderr, "ERROR: Could not initialise memory for password grammar.\n"); - ret_code = EXIT_FAILURE; - goto cleanup; + exit(EXIT_FAILURE); } } @@ -178,16 +170,14 @@ Compile-time options (edit `config.h` to customise!):\n\ password = malloc(grammar_size + 1); if (password == NULL) { perror("malloc"); - ret_code = EXIT_FAILURE; - goto cleanup; + exit(EXIT_FAILURE); } } password[grammar_size] = 0; if (!init_rng()) { fprintf(stderr, "ERROR: Could not initialise RNG.\n"); - ret_code = EXIT_FAILURE; - goto cleanup; + exit(EXIT_FAILURE); } for (int i = 0; i < grammar_size; ++i) { @@ -205,8 +195,7 @@ Compile-time options (edit `config.h` to customise!):\n\ } if (class == NULL) { fprintf(stderr, "ERROR: Invalid grammar character '%c'.\n", c); - ret_code = EXIT_FAILURE; - goto cleanup; + exit(EXIT_FAILURE); } do { @@ -217,16 +206,4 @@ Compile-time options (edit `config.h` to customise!):\n\ } printf("%s\n", password); - -cleanup: -#ifdef USE_WINCRYPT - CryptReleaseContext(win_rng, 0); -#endif - /* TODO: this && kinda sucks, would like a better but still fast way */ - if (grammar != grammar_buf && grammar != argv[1]) - free(grammar); - if (password != password_buf) - free(password); - - return ret_code; } |