Start work on GNU

src/common/processing_linux.c

@@ -234,7 +234,7 @@ void ffProcessGetInfoLinux(pid_t pid, FFstrbuf* processName, FFstrbuf* exe, cons
     assert(processName->length > 0);
     ffStrbufClear(exe);
 
-    #ifdef __linux__
+    #if defined(__linux__) || defined(__GNU__)
 
     char filePath[64];
     snprintf(filePath, sizeof(filePath), "/proc/%d/cmdline", (int)pid);
@@ -436,7 +436,7 @@ const char* ffProcessGetBasicInfoLinux(pid_t pid, FFstrbuf* name, pid_t* ppid, i
     if (pid <= 0)
         return "Invalid pid";
 
-    #ifdef __linux__
+    #if defined(__linux__) || defined(__GNU__)
 
     char procFilePath[64];
     if (ppid)
@@ -465,11 +465,30 @@ const char* ffProcessGetBasicInfoLinux(pid_t pid, FFstrbuf* name, pid_t* ppid, i
     }
     else
     {
+        #ifndef __GNU__
         snprintf(procFilePath, sizeof(procFilePath), "/proc/%d/comm", (int)pid);
         ssize_t nRead = ffReadFileBuffer(procFilePath, name);
         if(nRead <= 0)
             return "ffReadFileBuffer(/proc/pid/comm, name) failed";
         ffStrbufTrimRightSpace(name);
+	#else
+	// No /proc/1/comm on Hurd so read /proc/1/stat again
+	snprintf(procFilePath, sizeof(procFilePath), "/proc/%d/stat", (int)pid);
+        char buf[PROC_FILE_BUFFSIZ];
+        ssize_t nRead = ffReadFileData(procFilePath, sizeof(buf) - 1, buf);
+        if(nRead <= 8)
+            return "ffReadFileData(/proc/pid/stat, PROC_FILE_BUFFSIZ-1, buf) failed";
+        buf[nRead] = '\0';
+
+        ffStrbufEnsureFixedLengthFree(name, 255);
+        if(
+            sscanf(buf, "%*s (%255[^)]) %*c %*d %*d %*d %*d", name->chars) == 0 || //stat (comm) state ppid pgrp session tty
+            name->chars[0] == '\0'
+        )
+            return "sscanf(stat) failed";
+
+        ffStrbufRecalculateLength(name);
+	#endif
     }
 
     #elif defined(__APPLE__)

src/detection/loadavg/loadavg_linux.c

@@ -19,7 +19,7 @@ const char* ffDetectLoadavg(double result[3])
     }
 
     #endif
-
+    #ifndef __GNU__
     // getloadavg requires higher ANDROID_API version
     struct sysinfo si;
     if (sysinfo(&si) < 0)
@@ -27,5 +27,6 @@ const char* ffDetectLoadavg(double result[3])
 
     for (int i = 0; i < 3; i++)
         result[i] = (double) si.loads[i] / (1 << SI_LOAD_SHIFT);
+    #endif
     return NULL;
 }

src/detection/localip/localip_linux.c

@@ -29,6 +29,7 @@
 #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__APPLE__) || defined(__NetBSD__) || defined(__HAIKU__)
 #include <net/if_media.h>
 #include <net/if_dl.h>
+#elif defined(__GNU__)
 #else
 #include <netpacket/packet.h>
 #endif
@@ -69,12 +70,14 @@ static const FFLocalIpNIFlag niFlagOptions[] = {
 #ifdef IFF_NOTRAILERS
     FF_LOCALIP_NIFLAG(NOTRAILERS),
 #endif
-#ifdef __linux__
+#if defined( __linux__) || defined (__GNU__)
     FF_LOCALIP_NIFLAG(MASTER),
     FF_LOCALIP_NIFLAG(SLAVE),
     FF_LOCALIP_NIFLAG(PORTSEL),
     FF_LOCALIP_NIFLAG(AUTOMEDIA),
     FF_LOCALIP_NIFLAG(DYNAMIC),
+#endif
+#ifdef __linux__
     FF_LOCALIP_NIFLAG(LOWER_UP),
     FF_LOCALIP_NIFLAG(DORMANT),
     FF_LOCALIP_NIFLAG(ECHO),
@@ -562,6 +565,7 @@ const char* ffDetectLocalIps(const FFLocalIpOptions* options, FFlist* results)
                 FF_DEBUG("No MAC address available for interface %s", adapter->mac->ifa_name);
             }
         }
+        #elif defined(__GNU__)
         #else
         (void) adapter;
         #endif

src/detection/uptime/uptime_linux.c

@@ -26,13 +26,13 @@ const char* ffDetectUptime(FFUptimeResult* result)
     }
 
     #endif
-
+    #ifndef __GNU__
     struct timespec uptime;
     if (clock_gettime(CLOCK_BOOTTIME, &uptime) != 0)
         return "clock_gettime(CLOCK_BOOTTIME) failed";
 
     result->uptime = (uint64_t) uptime.tv_sec * 1000 + (uint64_t) uptime.tv_nsec / 1000000;
     result->bootTime = ffTimeGetNow() - result->uptime;
-
+    #endif
     return NULL;
 }

src/detection/version/version.c

@@ -54,6 +54,8 @@
     #define FF_SYSNAME "NetBSD"
 #elif defined(__HAIKU__)
     #define FF_SYSNAME "Haiku"
+#elif defined(__GNU__)
+    #define FF_SYSNAME "GNU"
 #else
     #define FF_SYSNAME "Unknown"
 #endif

src/options/general.h

@@ -16,7 +16,7 @@ typedef struct FFOptionsGeneral
     bool detectVersion;
 
     // Module options that cannot be put in module option structure
-    #if defined(__linux__) || defined(__FreeBSD__) || defined(__sun) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__HAIKU__)
+    #if defined(__linux__) || defined(__FreeBSD__) || defined(__sun) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__HAIKU__) || defined(__GNU__)
     FFstrbuf playerName;
     FFDsForceDrmType dsForceDrm;
     #elif defined(_WIN32)

src/util/platform/FFPlatform_unix.c

@@ -22,7 +22,7 @@
 static void getExePath(FFPlatform* platform)
 {
     char exePath[PATH_MAX + 1];
-    #ifdef __linux__
+    #if defined(__linux__) || defined (__GNU__)
         ssize_t exePathLen = readlink("/proc/self/exe", exePath, sizeof(exePath) - 1);
         if (exePathLen >= 0)
             exePath[exePathLen] = '\0';