moved inlined functions from utils.h to non-inlined versions in utils.c

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/utils.c b/utils.c
new file mode 100644
index 0000000..6f13027
--- /dev/null
+++ b/utils.c
@@ -0,0 +1,84 @@
+#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+__attribute__((noreturn)) void usage(const char * const arg0)
+{
+    fprintf(stderr, "usage: %s -k [SODIUM-KEY] -h [HOST] -p [PORT] -f [FILE]\n", arg0);
+    exit(EXIT_FAILURE);
+}
+
+void parse_cmdline(struct cmd_options * const opts, int argc, char ** const argv)
+{
+    int opt;
+
+    while ((opt = getopt(argc, argv, "k:h:p:f:h")) != -1) {
+        switch (opt) {
+            case 'k':
+                opts->key_string = strdup(optarg);
+                memset(optarg, '*', strlen(optarg));
+                break;
+            case 'h':
+                opts->host = strdup(optarg);
+                break;
+            case 'p':
+                opts->port = strdup(optarg);
+                break;
+            case 'f':
+                opts->filepath = strdup(optarg);
+                break;
+            default:
+                usage(argv[0]);
+        }
+    }
+
+    if (opts->host == NULL) {
+        opts->host = strdup("127.0.0.1");
+    }
+    if (opts->port == NULL) {
+        opts->port = strdup("5555");
+    }
+    if (opts->key_string != NULL) {
+        opts->key_length = strlen(opts->key_string);
+    }
+}
+
+char * prettify_bytes_with_units(char * const out, size_t out_size, unsigned long long bytes)
+{
+    static char const * const unit_prefixes[] = {"", "Kilo", "Mega", "Giga", "Tera"};
+    size_t const unit_prefixes_length = sizeof(unit_prefixes) / sizeof(unit_prefixes[0]);
+    unsigned char unit_prefixes_index = 0;
+    size_t const convert_bytes_every = 1024;
+
+    while (bytes / convert_bytes_every > 0 && unit_prefixes_index < unit_prefixes_length) {
+        bytes /= convert_bytes_every;
+        unit_prefixes_index++;
+    }
+
+    snprintf(out, out_size, "%llu %sBytes", bytes, unit_prefixes[unit_prefixes_index]);
+
+    return out;
+}
+
+int hostname_to_address(char const * const host, char const * const port, struct addrinfo ** const result)
+{
+    int s;
+    struct addrinfo hints;
+
+    memset(&hints, 0, sizeof(struct addrinfo));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_PASSIVE;
+
+    s = getaddrinfo(host, port, &hints, result);
+    if (s != 0) {
+        return s;
+    }
+
+    return 0;
+}