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use arg.h to parse options

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Night Kaly 2024-04-08 11:41:57 +00:00
parent 1910c7aa99
commit 57ffcff2f1
Signed by: night0721
GPG key ID: 957D67B8DB7A119B
3 changed files with 137 additions and 48 deletions
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3
Makefile
View file

@ -11,13 +11,12 @@ CFLAGS = -O3 -march=native -mtune=native -pipe -s -std=c99 -pedantic -Wall -D_DE
SRC = argon.c
argon:
argon: argon.c
${CC} ${SRC} -o $@ ${CFLAGS}
clean:
rm -rf argon
dist: version argon
mkdir -p argon-${VERSION}
cp -R LICENSE README.md argon.1 argon argon-${VERSION}

65
arg.h Normal file
View file

@ -0,0 +1,65 @@
/*
* Copy me if you can.
* by 20h
*/
#ifndef ARG_H__
#define ARG_H__
extern char *argv0;
/* use main(int argc, char *argv[]) */
#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
argv[0] && argv[0][0] == '-'\
&& argv[0][1];\
argc--, argv++) {\
char argc_;\
char **argv_;\
int brk_;\
if (argv[0][1] == '-' && argv[0][2] == '\0') {\
argv++;\
argc--;\
break;\
}\
for (brk_ = 0, argv[0]++, argv_ = argv;\
argv[0][0] && !brk_;\
argv[0]++) {\
if (argv_ != argv)\
break;\
argc_ = argv[0][0];\
switch (argc_)
/* Handles obsolete -NUM syntax */
#define ARGNUM case '0':\
case '1':\
case '2':\
case '3':\
case '4':\
case '5':\
case '6':\
case '7':\
case '8':\
case '9'
#define ARGEND }\
}
#define ARGC() argc_
#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
((x), abort(), (char *)0) :\
(brk_ = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\
(argc--, argv++, argv[0])))
#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
(char *)0 :\
(brk_ = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\
(argc--, argv++, argv[0])))
#define LNGARG() &argv[0][0]
#endif

93
argon.c
View file

@ -9,10 +9,14 @@
#include <sys/resource.h>
#include <sodium.h>
#include "arg.h"
#define KEY_SIZE crypto_secretbox_KEYBYTES
#define NONCE_SIZE crypto_secretbox_NONCEBYTES
#define SALT_SIZE crypto_pwhash_SALTBYTES
char *argv0;
void die(char *str);
void *memalloc(size_t size)
@ -27,16 +31,19 @@ void *memalloc(size_t size)
char *get_master_key();
void usage(char **args)
void usage()
{
printf("Usage: %s [-vheRIQLG] [-v] [-h] [-e <password>] [-R <password>] [-I <password>] [-Q <password>] [-L] [-G <password> <length>]\n", args[0]);
printf("Usage: %s [-vhL] [[-e | -R | -I | -Q] <password>] [-G <password> <length>]\n", argv0);
exit(EXIT_SUCCESS);
}
int compare(const void *a, const void *b) {
int compare(const void *a, const void *b)
{
return strcmp(*(const char **)a, *(const char **)b);
}
void tree(const char *basepath, int depth) {
void tree(const char *basepath, int depth)
{
char path[PATH_MAX];
struct dirent *dp;
DIR *dir = opendir(basepath);
@ -140,7 +147,6 @@ char *get_password()
/* remove newline character */
password[strcspn(password, "\n")] = '\0';
return password;
}
void encrypt_password(const char *name, char *password)
@ -297,7 +303,7 @@ char *get_master_key()
return m_key;
}
void generate_password(int length, char *name)
void generate_password(char*name, int length)
{
srand(time(NULL));
const char *characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890123456789~`!@#$%^&*()-_+=[]{}|/,.<>;:'";
@ -307,7 +313,7 @@ void generate_password(int length, char *name)
random_string[i] = characters[rand() % (characters_len - 1)];
}
random_string[length] = '\0';
printf("The geneated password for %s is: %s\n", name, random_string);
printf("The generated password for %s is: %s\n", name, random_string);
encrypt_password(name, random_string);
free(random_string);
}
@ -318,7 +324,7 @@ void die(char *str)
exit(EXIT_FAILURE);
}
int main(int argc, char **argv)
int main(int argc, char *argv[])
{
if (sodium_init() == -1) {
die("Error initializing sodium");
@ -327,44 +333,63 @@ int main(int argc, char **argv)
/* disable core dump for security */
setrlimit(RLIMIT_CORE, &(struct rlimit) {0, 0});
if (argc == 1) {
usage(argv);
return 0;
}
if (strncmp(argv[1], "-v", 2) == 0 && argc == 2) {
ARGBEGIN {
case 'h':
usage();
break;
case 'v':
printf("argon 1.0.0\n");
} else if (strncmp(argv[1], "-h", 2) == 0 && argc == 2) {
usage(argv);
} else if (strncmp(argv[1], "-e", 2) == 0 && argc == 3) {
decrypt_password(argv[2], 1);
} else if (strncmp(argv[1], "-R", 2) == 0 && argc == 3) {
char *pass_file = get_passfile(argv[2]);
exit(EXIT_SUCCESS);
break;
case 'e':
decrypt_password(EARGF(usage()), 1);
exit(EXIT_SUCCESS);
break;
case 'R':;
char *pass_file = get_passfile(EARGF(usage()));
if (remove(pass_file)) {
perror("argon");
} else {
printf("Removed %s\n", basename(pass_file));
}
free(pass_file);
} else if (strncmp(argv[1], "-I", 2) == 0 && argc == 3) {
exit(EXIT_SUCCESS);
break;
case 'I':;
char *pw = get_password();
encrypt_password(argv[2], pw);
encrypt_password(EARGF(usage()), pw);
free(pw);
} else if (strncmp(argv[1], "-Q", 2) == 0 && argc == 3) {
decrypt_password(argv[2], 0);
} else if (strncmp(argv[1], "-L", 2) == 0 && argc == 2) {
exit(EXIT_SUCCESS);
break;
case 'Q':
decrypt_password(EARGF(usage()), 0);
exit(EXIT_SUCCESS);
break;
case 'L':;
char *argon = get_argon();
tree(argon, 0);
free(argon);
} else if (strncmp(argv[1], "-G", 2) == 0) {
if (argc < 4) {
die("Missing length or name to generate password");
}
int length = atoi(argv[3]);
generate_password(length, argv[2]);
} else if (argc == 2) {
decrypt_password(argv[1], 0);
} else {
usage(argv);
exit(EXIT_SUCCESS);
break;
case 'G':;
if (argc > 0)
--argc, ++argv;
goto run;
default:
usage();
} ARGEND;
run:
switch (argc) {
case 0:
usage();
break;
case 1:
decrypt_password(argv[0], 0);
break;
case 2:
generate_password(argv[0], atoi(argv[1]));
break;
}
return 0;