Refactor project structure

1 files changed, 0 insertions, 233 deletions

diff --git a/rpath.c b/rpath.c
deleted file mode 100644
index f499e98..0000000
--- a/rpath.c
+++ /dev/null
@@ -1,233 +0,0 @@
-#include "spm.h"
-
-/**
- * Wrapper function to execute `patchelf` with arguments
- * @param _filename Path of file to modify
- * @param _args Arguments to pass to `patchelf`
- * @return success=Process struct, failure=NULL
- */
-Process *patchelf(const char *_filename, const char *_args) {
-    char *filename = strdup(_filename);
-    char *args = strdup(_args);
-    Process *proc_info = NULL;
-    char sh_cmd[PATH_MAX];
-    sh_cmd[0] = '\0';
-
-    strchrdel(args, "&;|");
-    strchrdel(filename, "&;|");
-    sprintf(sh_cmd, "patchelf %s %s", args, filename);
-
-    shell(&proc_info, SHELL_OUTPUT, sh_cmd);
-
-    free(filename);
-    free(args);
-    return proc_info;
-}
-
-/**
- * Determine whether a RPATH or RUNPATH is present in file
- *
- * TODO: Replace with OS-native solution(s)
- *
- * @param _filename path to executable or library
- * @return -1=OS error, 0=has rpath, 1=not found
- */
-int has_rpath(const char *_filename) {
-    int result = 1;     // default: not found
-
-    char *filename = strdup(_filename);
-    if (!filename) {
-        return -1;
-    }
-
-    Process *proc_info = NULL;
-    char *rpath = NULL;
-
-    // sanitize input path
-    strchrdel(filename, "&;|");
-
-    Process *pe = patchelf(filename, "--print-rpath");
-    strip(pe->output);
-    if (!isempty(pe->output)) {
-        result = 0;
-    }
-    else {
-        // something went wrong with patchelf other than
-        // what we're looking for
-        result = -1;
-    }
-
-    free(filename);
-    shell_free(pe);
-    return result;
-}
-
-/**
- * Returns a RPATH or RUNPATH if one is defined in `_filename`
- *
- * TODO: Replace with OS-native solution(s)
- *
- * @param _filename path to executable or library
- * @return RPATH string, NULL=error (caller is responsible for freeing memory)
- */
-char *rpath_get(const char *_filename) {
-    if ((has_rpath(_filename)) != 0) {
-        return NULL;
-    }
-    char *filename = strdup(_filename);
-    if (!filename) {
-        return NULL;
-    }
-    char *path = strdup(filename);
-    if (!path) {
-        free(filename);
-        return NULL;
-    }
-
-    Process *proc_info = NULL;
-    char *rpath = NULL;
-
-    // sanitize input path
-    strchrdel(path, "&;|");
-
-    Process *pe = patchelf(filename, "--print-rpath");
-    rpath = (char *)calloc(strlen(pe->output) + 1, sizeof(char));
-    if (!rpath) {
-        free(filename);
-        free(path);
-        shell_free(pe);
-        return NULL;
-    }
-    strncpy(rpath, pe->output, strlen(pe->output));
-    strip(rpath);
-
-    free(filename);
-    free(path);
-    shell_free(pe);
-    return rpath;
-}
-
-/**
- * Generate a RPATH in the form of:
- *
- * `$ORIGIN/relative/path/to/lib/from/_filename/path`
- *
- * @param _filename
- * @return
- */
-char *rpath_generate(const char *_filename) {
-    const char *origin = "$ORIGIN/";
-    char *filename = realpath(_filename, NULL);
-    if (!filename) {
-        return NULL;
-    }
-    char *nearest_lib = rpath_autodetect(filename);
-    if (!nearest_lib) {
-        return NULL;
-    }
-    char *result = (char *)calloc(strlen(origin) + strlen(nearest_lib) + 1, sizeof(char));
-    if (!result) {
-        return NULL;
-    }
-    sprintf(result, "%s%s", origin, nearest_lib);
-    free(filename);
-    free(nearest_lib);
-    return result;
-}
-
-int rpath_set(const char *filename, char *_rpath) {
-    int returncode;
-
-    char *rpath_new = rpath_generate(filename);
-    if (!rpath_new) {
-        return -1;
-    }
-
-    char *rpath_orig = rpath_get(filename);
-    if (!rpath_orig) {
-        return -1;
-    }
-
-    // Are the original and new RPATH identical?
-    if (strcmp(rpath_orig, rpath_new) == 0) {
-        free(rpath_new);
-        free(rpath_orig);
-        return 0;
-    }
-
-    Process *pe = patchelf(filename, "--set-rpath");
-    if (pe) {
-        returncode = pe->returncode;
-    }
-    shell_free(pe);
-    free(rpath_new);
-    free(rpath_orig);
-    return pe->returncode;
-}
-
-/**
- * Using `filename` as a starting point, step backward through the filesystem looking for a lib directory
- * @param filename path to file (or a directory)
- * @return success=relative path from `filename` to nearest lib directory, failure=NULL
- */
-char *rpath_autodetect(const char *filename) {
-    int has_real_libdir = 0;
-    char *rootdir = dirname(filename);
-    char *start = realpath(rootdir, NULL);
-    char *cwd = realpath(".", NULL);
-    char *result = NULL;
-
-    // Change directory to the requested root
-    chdir(start);
-
-    char visit[PATH_MAX];       // Current directory
-    char tmp[PATH_MAX];         // Current directory with lib directory appended
-    char relative[PATH_MAX];    // Generated relative path to lib directory
-    char sep[2];                // Holds the platform's directory separator
-
-    // Initialize character arrays;
-    visit[0] = '\0';
-    tmp[0] = '\0';
-    relative[0] = '\0';
-    sprintf(sep, "%c", DIRSEP);
-
-    while(1) {
-        // Where are we in the file system?
-        getcwd(visit, sizeof(visit));
-        // Using the current visit path, check if it contains a lib directory
-        sprintf(tmp, "%s%clib", visit, DIRSEP);
-        if (access(tmp, F_OK) == 0) {
-            strcat(relative, "lib");
-            has_real_libdir = 1;        // gate for memory allocation below
-            break;
-        }
-            // Reaching the top of the file system indicates our search for a lib directory failed
-        else if (strcmp(visit, "/") == 0) {
-            break;
-        }
-
-        // Assemble relative path step for this location
-        strcat(relative, "..");
-        strcat(relative, sep);
-
-        // Step one directory level back
-        chdir("..");
-    }
-
-    // If we found a viable lib directory, allocate memory for it
-    if (has_real_libdir) {
-        result = (char *)calloc(strlen(relative) + 1, sizeof(char));
-        if (!result) {
-            chdir(cwd);     // return to calling directory
-            return NULL;
-        }
-        // Copy character array data to the result
-        strncpy(result, relative, strlen(relative));
-    }
-
-    chdir(cwd);     // return to calling directory
-    free(rootdir);
-    free(cwd);
-    free(start);
-    return result;
-}