1 files changed, 49 insertions, 83 deletions

diff --git a/src/shared.c b/src/shared.c
index 0a2121b..9a147eb 100644
--- a/src/shared.c
+++ b/src/shared.c
@@ -19,18 +19,17 @@
     return (retval);\
 } while (0)
 
-/// Defines how `x___alloc()` functions should exit. `___VXGG___XALLOC_EXIT_ON_ERROR___ > 0` calls `error()`, and thus functions
-/// registered with `atexit()` and `on_exit()`. `___VXGG___XALLOC_EXIT_ON_ERROR___ <= 0` calls `abort()` on error. `x___alloc()`
-/// type functions will ALWAYS 'abort', doing otherwise defeats the purpose of the function type
-#define ___VXGG___XALLOC_EXIT_ON_ERROR___ 1
+/// Determines how `vx__alloc()` functions exit. `> 0` calls `error()`, otherwise calls `abort()`. `vx__alloc()` type functions will
+/// always halt execution
+#define ___VXGG___VXALLOC_EXIT_ON_ERROR___ 1
 
-/// Defines whether vxgg functions that can error print out a short warning of the error when one is encountered.
-/// `___VXGG___VERBOSE_ERRORS___ > 0` will print diagnostic error messages, and will do nothing otherwise
+/// Determines whether vxgg functions that can error print out a short warning of the error when one is encountered.
+/// `> 0` will print diagnostic error messages, and will do nothing otherwise
 #define ___VXGG___VERBOSE_ERRORS___ 1
 
 //! Macro to exit on an alloc error instead of doing the terrible nested if statement that was being used previously
 #define XALLOC_EXIT(msg, ...) do {\
-    if(!___VXGG___XALLOC_EXIT_ON_ERROR___)\
+    if(!___VXGG___VXALLOC_EXIT_ON_ERROR___)\
         abort();\
     if(!___VXGG___VERBOSE_ERRORS___)\
         exit(EXIT_FAILURE);\
@@ -38,9 +37,6 @@
     exit(EXIT_FAILURE); /* Makes gcc happy */\
 } while (0)
 
-//! Holdover macro because I'm lazy. Used to call either malloc or xmalloc, but the xalloc functions were a bad idea, so I removed them
-#define VALLOC(nmemb, size) malloc((nmemb) * (size))
-
 //! Error macro that gcc will not complain about
 #define ERROR(status, errnum, format, ...) do {error((status), (errnum), (format)__VA_ARGS__); exit((status));} while (0)
 //! Spit out a warning using `error`
@@ -60,6 +56,7 @@ typedef struct cl {
     int size;               //!< The size of each array
     int used;               //!< The current number of used elements in each array
 } cleanup;
+// While the cleanup thing is useful, it's also a complete fucking mess. Swtich to error gotos asap
 
 #include <stdlib.h>
 #include <string.h>
@@ -83,16 +80,15 @@ int rwbuf(char **str, unsigned long int initsize, int fd) {
                 // Bytes read == 0, return 0
                 // Bytes read < 0, free string, return -1;
         // When string hits capacity, double the capacity, and reallocate the string
-        if(!str || initsize < 1) ERRRET(EINVAL, -1);
-        const int ECODE = -100;
 
-        char *lstr = NULL, *tmp = NULL;
+        if(!str || initsize < 1 || fd < 0) ERRRET(EINVAL, -1);
+
+    char *lstr = NULL, *tmp = NULL;
         ssize_t bytesread = -1;
-        int csize = initsize, ccap = initsize;
+        int csize = initsize, ccap = initsize, eflag = 0;
 
         lstr = calloc(initsize, sizeof(char));
-        if(!lstr)
-                return -1;
+        if(!lstr) return -1;
 
         while((bytesread = read(fd, lstr + (csize - ccap), ccap)) > 0) {
                 ccap -= bytesread;
@@ -101,35 +97,15 @@ int rwbuf(char **str, unsigned long int initsize, int fd) {
                         ccap = csize / 2;
 
                         tmp = realloc(lstr, csize * sizeof(char));
-                        if(!tmp) {
-                if(___VXGG___VERBOSE_ERRORS___)
-                                    error(0, errno, "Could not reallocate enough space for lstr");
-
-                                free(lstr);
-                lstr = NULL; // Need to set this because of the break
-                                bytesread = ECODE;
-                                break;
-                        }
+                        if(!tmp) {eflag = 1; goto ERR_rwbuf;}
                         lstr = tmp;
                 }
         }
-        if(bytesread < 0 && bytesread != ECODE) {
-        if(___VXGG___VERBOSE_ERRORS___)
-                    error(0, errno, "Ran into a read() error");
-
-                free(lstr);
-                lstr = NULL;
-        }
+        if(bytesread < 0) {eflag = 2; goto ERR_rwbuf;}
 
         if(lstr) {
                 tmp = realloc(lstr, csize - ccap + 1);
-                if(!tmp) {
-            if(___VXGG___VERBOSE_ERRORS___)
-                            error(0, errno, "Could not shrink lstr after reading buffer");
-
-                        free(lstr);
-                        bytesread = ECODE;
-                }
+                if(!tmp) {eflag = 3; goto ERR_rwbuf;}
                 lstr = tmp;
         }
 
@@ -138,7 +114,20 @@ int rwbuf(char **str, unsigned long int initsize, int fd) {
     }
 
         *str = lstr;
-        return ((bytesread == 0) ? (csize - ccap) : -1);
+        return csize - ccap;
+
+ERR_rwbuf:
+    if(___VXGG___VERBOSE_ERRORS___) {
+        switch (eflag) {
+            case 1: WARN(errno, "Could not reallocate enough space for lstr",);
+            case 2: WARN(errno, "Ran into a read() error",);
+            case 3: WARN(errno, "Could not shrink lstr after reading buffer",);
+            default: WARN(errno, "Ran into some error",);
+        }
+    }
+    free(lstr);
+
+    return -1;
 }
 
 
@@ -152,7 +141,7 @@ int rwbuf(char **str, unsigned long int initsize, int fd) {
  */
 
 int wwbuf(int fd, const unsigned char *buf, int len) {
-        if(!buf || len <= 0) ERRRET(EINVAL, -1);
+        if(!buf || len <= 0 || fd < 0) ERRRET(EINVAL, -1);
 
     int total = 0;
     int left = len;
@@ -182,28 +171,18 @@ char * vxdirname(const char * const path) {
         char *tmp = NULL;
         if(!path) { // Path being null is a special case which should return early, before anything else (as to avoid null dereference)
                 tmp = strdup(".");
-                if(!tmp) {
-                        WARN(errno, "<vxdirname> could not strdup \".\" for set path result \"NULL\"", );
-                        return NULL;
-                }
-
-                return tmp;
-        }
-
-        unsigned char flag = 0;
-        if(strcmp(path, ".")    == 0)                   {tmp = strdup("."); flag++;}
-        if(strcmp(path, "/")    == 0 && !flag)  {tmp = strdup("/"); flag++;}
-        if(strcmp(path, "..")   == 0 && !flag)  {tmp = strdup("."); flag++;}
-
-        if(flag) {
-                if(!tmp) {
-                        WARN(errno, "<vxdirname> could not strdup a set path result", );
-                        return NULL;
-                }
-
+                if(!tmp && ___VXGG___VERBOSE_ERRORS___) WARN(errno, "<vxdirname> could not strdup \".\" for set path result \"NULL\"", );
                 return tmp;
         }
 
+    const char * const special[] = {"..", ".", "/"};
+    for(int i = 0; i < STATIC_ARRAY_LEN(special); i++) {
+        if(strncmp(path, special[i], strlen(special[i])) == 0) {
+            tmp = strdup(special[i]);
+            if(!tmp && ___VXGG___VERBOSE_ERRORS___) WARN(errno, "<vxdirname> could not strdup a set path result", );
+            return tmp;
+        }
+    }
 
         /* From the manpages: (man 3 dirname)
         //              +=======================================+
@@ -218,7 +197,7 @@ char * vxdirname(const char * const path) {
         // Get a temp copy of the path for manipulation purposes
         tmp = strdup(path);
         if(!tmp) {
-                WARN(errno, "<vxdirname> could not strdup the given path \"%s\" for internal manipulation", , path);
+                if(___VXGG___VERBOSE_ERRORS___) WARN(errno, "<vxdirname> could not strdup the given path \"%s\" for internal manipulation", , path);
                 return NULL;
         }
 
@@ -239,24 +218,14 @@ char * vxdirname(const char * const path) {
                         count++;
         }
 
-        if(count == 0 || count == 1)
-                free(tmp);
-        if(count == 0) {
-                tmp = strdup(".");
-                if(!tmp) {
-                        WARN(errno, "<xdirname> could not strdup \".\" for set path result", );
-                        return NULL;
-                }
-                return tmp;
-        } else if(count == 1) {
-                tmp = strdup("/");
-                if(!tmp) {
-                        WARN(errno, "<xdirname> could not strdup \"/\" for set path result", );
-                        return NULL;
-                }
-                return tmp;
-        }
-        // This is retarded, fix it
+    if(count < 2) {
+        free(tmp);
+        if(count == 1) tmp = strdup("/");
+        else tmp = strdup(".");
+
+        if(!tmp && ___VXGG___VERBOSE_ERRORS___) WARN(errno, "<vxdirname> Error: Could not strdup \"%s\" for set path result", , ((count == 0) ? "." : "/"));
+        return tmp;
+    }
 
         for(size_t i = 0, c2 = 0; i < pathlen; i++) {
                 if(tmp[i] == '/')
@@ -267,10 +236,7 @@ char * vxdirname(const char * const path) {
 
         char * const actual = strdup(tmp);
         free(tmp);
-        if(!actual) {
-                WARN(errno, "<xdirname> could not strdup tmp string to make a shorter end string", );
-                return NULL;
-        }
+        if(!actual && ___VXGG___VERBOSE_ERRORS___) WARN(errno, "<xdirname> could not strdup tmp string to make a shorter end string", );
 
         return actual;
 }