Added Makefile, fixed default install permissions including for executables, made metadata lines ignored when installing for now (they were just added recently and aren't properly handled yet)

Makefile

@@ -0,0 +1,14 @@
+all: slabpkg.pkg
+
+dist/slabpkg: slabpkg.c
+	$(CC) -o $@ $^
+
+slabpkg.pkg: slabpkg.pkb dist/slabpkg
+	dist/slabpkg build slabpkg.pkb
+
+testroot/slabpkg: dist/slabpkg slabpkg.pkg testroot/README.md
+	dist/slabpkg --root ./testroot install slabpkg.pkg
+
+test: dist/slabpkg testroot/slabpkg
+	dist/slabpkg sum $^
+	testroot/slabpkg sum $^

slabpkg.c

@@ -6,6 +6,9 @@
 #ifndef PKG_MKDIR_SIMPLE
 #define PKG_MKDIR_LINUX
 #endif
+#ifndef PKG_CHMOD_SIMPLE
+#define PKG_CHMOD_LINUX
+#endif
 
 // For reliable integer sizing
 #include <stdint.h>
@@ -25,6 +28,15 @@ int mkdir(const char* dirname);
 #error Either (-D) PKG_MKDIR_LINUX or PKG_MKDIR_SIMPLE must be defined
 #endif
 #endif
+// For chmod
+#ifdef PKG_CHMOD_LINUX
+#include <sys/stat.h>
+#else
+#ifdef PKG_CHMOD_NONE
+#else
+#error Either (-D) PKG_CHMOD_LINUX or PKG_CHMOD_SIMPLE must be defined
+#endif
+#endif
 
 // The compressed buffer needs to be a bit over twice size the regular
 // buffer to account for worst case scenario.
@@ -38,6 +50,7 @@ int mkdir(const char* dirname);
 #define PKG_JOBTYPE_COMPRESS    5
 #define PKG_JOBTYPE_DECOMPRESS  6
 
+#define PKG_FLAGS_TYPEMASK      0xF00
 #define PKG_FLAGS_DIRECTORY     0x100
 #define PKG_FLAGS_EXECUTABLE    0x200
 #define PKG_FLAGS_PROVIDES      0x300
@@ -110,7 +123,7 @@ char pkg_comprbuffer[PKG_COMPRBUFSIZE];
 
 int pkg_mkdir(const char* path) {
 #ifdef PKG_MKDIR_LINUX
-  return mkdir(path, 0775);
+  return mkdir(path, 0755); // NOTE: Was previously using 0775, figured more secure by default is better?
 #endif
 #ifdef PKG_MKDIR_SIMPLE
   return mkdir(path);
@@ -121,6 +134,23 @@ int pkg_remove(const char* path, int isdir) {
   return unlink(path);
 }
 
+int pkg_chmod_default(const char* path) {
+#ifdef PKG_CHMOD_LINUX
+  return chmod(path, 0644);
+#else
+  return 0;
+#endif
+}
+
+int pkg_chmod_executable(const char* path) {
+#ifdef PKG_CHMOD_LINUX
+  return chmod(path, 0755);
+#else
+  fprintf(stderr, "NOTE: Ignoring executable bit for '%s'\n", path);
+  return 0;
+#endif
+}
+
 int pkg_versionmeta_alldigits(pkg_versionmeta_t* m) {
   const char* s = m->value;
   while (*s) {
@@ -516,6 +546,7 @@ int pkg_sum_init(pkg_sum_t* sum, char* filename, int dupfilename) {
   if (sum == NULL) {
     return -1;
   }
+  sum->flags = 0;
   sum->cmprsize = 0;
   sum->extrsize = 0;
   sum->checksum64 = 0x811C9DC5BADC0DE5ULL;
@@ -846,10 +877,14 @@ int pkg_archive_extractcontents(pkg_archive_t* archive, FILE* input, const char*
   while (filehdr != NULL) {
     char* outputname = pkg_ezstrcat(installroot, filehdr->name); // Note, this assumes one or the other includes a path separator
     
-    if (filehdr->flags & PKG_FLAGS_DIRECTORY) {
+    int t = filehdr->flags & PKG_FLAGS_TYPEMASK;
+    
+    if (t == PKG_FLAGS_DIRECTORY) {
       fprintf(stderr, "Creating directory '%s'...\n", outputname);
       int mkdirresult = pkg_mkdir(outputname);
       fprintf(stderr, "mkdir of '%s' returned %d\n", outputname, mkdirresult);
+    } else if (t == PKG_FLAGS_PROVIDES || t == PKG_FLAGS_REQUIRES || t == PKG_FLAGS_SUGGESTS || t == PKG_FLAGS_CONFLICTS) {
+      fprintf(stderr, "Ignoring metadata line '%s'...\n", filehdr->name);
     } else {
       fprintf(stderr, "Creating file '%s'...\n", outputname);
       FILE* f = fopen(outputname, "w");
@@ -892,6 +927,12 @@ int pkg_archive_extractcontents(pkg_archive_t* archive, FILE* input, const char*
         fprintf(stderr, "VERIFICATION ERROR: File data checksums for '%s' don't match. Recorded checksum 0x%X, calculated checksum 0x%X!\n", filehdr->name, filehdr->checksum32, datasum.checksum32);
         return -1;
       }
+      
+      if (t == PKG_FLAGS_EXECUTABLE) {
+        pkg_chmod_executable(outputname);
+      } else {
+        pkg_chmod_default(outputname);
+      }
     }
     
     filehdr = filehdr->next;
@@ -1054,7 +1095,7 @@ int pkg_job_build(pkg_job_t* job, char* name) {
   outname[strlen(outname)-1] = 'g'; // "*.pkb"-> "*.pkg"
   char* shortname = strndup(name + sepi, n - (sepi + 4)); // Trim directory path and filename extension
   
-  printf("TODO build '%s' source dirname '%s' dist dirname '%s' output name '%s' shortname '%s'...\n", name, srcd, distd, outname, shortname);
+  //printf("TODO build '%s' source dirname '%s' dist dirname '%s' output name '%s' shortname '%s'...\n", name, srcd, distd, outname, shortname);
   
   FILE* buildf = fopen(name, "rb");
   
@@ -1754,7 +1795,11 @@ int main(int argc, char** argv) {
       if (argi >= argc) {
         return usage(argc, argv, argi, "Expected a directory name following the --root option.");
       }
-      job.installroot = strdup(argv[argi]);
+      if (strlen(argv[argi]) == 0 || (argv[argi][strlen(argv[argi])-1] != '/' && argv[argi][strlen(argv[argi])-1] != '\\')) {
+        job.installroot = pkg_ezstrcat(argv[argi], "/");
+      } else {
+        job.installroot = strdup(argv[argi]);
+      }
       argi++;
     } else if (!strcmp(argv[argi], "--dbroot")) {
       argi++;