From 9f3d8cc0c09a4167638c9af603deffcf364a206a Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Sun, 13 Dec 2020 13:05:49 +0100
Subject: [PATCH] Added argument parsing

---
 run.sh                |  2 +-
 src/necronda-server.c | 26 ++++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/run.sh b/run.sh
index 84f5e37..3bcca15 100755
--- a/run.sh
+++ b/run.sh
@@ -3,4 +3,4 @@ echo "-- Building and starting Necronda Server..."
 make compile && \
  echo "-- Successfully finished compiling!" && \
  echo "-- Starting Server..." && \
- ./bin/necronda-server
+ ./bin/necronda-server $@
diff --git a/src/necronda-server.c b/src/necronda-server.c
index 5f2de76..a087107 100644
--- a/src/necronda-server.c
+++ b/src/necronda-server.c
@@ -171,6 +171,32 @@ int main(int argc, const char *argv[]) {
 
     printf("Necronda Web Server\n");
 
+    for (int i = 1; i < argc; i++) {
+        const char *arg = argv[i];
+        unsigned long len = strlen(arg);
+        if ((len == 2 && strncmp(arg, "-h", 2) == 0) || (len == 6 && strncmp(arg, "--help", 6) == 0)) {
+            printf("Usage: necronda-server [-h] -w <PATH> -c <CERT-FILE> -p <KEY-FILE>\n"
+                   "\n"
+                   "Options:\n"
+                   "  -c, --cert <CERT-FILE>    path to the full chain certificate file\n"
+                   "  -h, --help                print this dialogue\n"
+                   "  -p, --privkey <KEY-FILE>  path to the private key file\n"
+                   "  -w, --webroot <PATH>      path to the web root directory\n");
+            return 0;
+        } else if ((len == 2 && strncmp(arg, "-w", 2) == 0) || (len == 9 && strncmp(arg, "--webroot", 9) == 0)) {
+            if (i == argc - 1) {
+                fprintf(stderr, ERR_STR "Unable to parse argument %s, usage: {-w|--webroot} <WEBROOT>" CLR_STR "\n", arg);
+                return 1;
+            }
+            arg = argv[++i];
+            len = strlen(arg);
+
+        } else {
+            fprintf(stderr, ERR_STR "Unable to parse argument '%s'" CLR_STR "\n", arg);
+            return 1;
+        }
+    }
+
     SOCKETS[0] = socket(AF_INET6, SOCK_STREAM, 0);
     if (SOCKETS[0] == -1) goto socket_err;
     SOCKETS[1] = socket(AF_INET6, SOCK_STREAM, 0);