Refactor directory structure

* Move core library sources into src/lib/core
* Move command-line programs into src/cli

1 files changed, 0 insertions, 173 deletions

diff --git a/src/system.c b/src/system.c
deleted file mode 100644
index 4e605ec..0000000
--- a/src/system.c
+++ /dev/null
@@ -1,173 +0,0 @@
-#include "system.h"
-#include "core.h"
-
-int shell(struct Process *proc, char *args) {
-    struct Process selfproc;
-    pid_t pid;
-    pid_t status;
-    status = 0;
-    errno = 0;
-
-    if (!proc) {
-        // provide our own proc structure
-        // albeit not accessible to the user
-        memset(&selfproc, 0, sizeof(selfproc));
-        proc = &selfproc;
-    }
-
-    if (!args) {
-        proc->returncode = -1;
-        return -1;
-    }
-
-    FILE *tp = NULL;
-    char *t_name;
-    t_name = xmkstemp(&tp, "w");
-    if (!t_name || !tp) {
-        return -1;
-    }
-
-    fprintf(tp, "#!/bin/bash\n%s\n", args);
-    fflush(tp);
-    fclose(tp);
-
-    // Set the script's permissions so that only the calling user can use it
-    // This should help prevent eavesdropping if keys are applied in plain-text
-    // somewhere.
-    chmod(t_name, 0700);
-
-    pid = fork();
-    if (pid == -1) {
-        fprintf(stderr, "fork failed\n");
-        exit(1);
-    } else if (pid == 0) {
-        FILE *fp_out = NULL;
-        FILE *fp_err = NULL;
-
-        if (strlen(proc->f_stdout)) {
-            fp_out = freopen(proc->f_stdout, "w+", stdout);
-            if (!fp_out) {
-                fprintf(stderr, "Unable to redirect stdout to %s: %s\n", proc->f_stdout, strerror(errno));
-                exit(1);
-            }
-        }
-
-        if (strlen(proc->f_stderr)) {
-            if (!proc->redirect_stderr) {
-                fp_err = freopen(proc->f_stderr, "w+", stderr);
-                if (!fp_err) {
-                    fprintf(stderr, "Unable to redirect stderr to %s: %s\n", proc->f_stdout, strerror(errno));
-                    exit(1);
-                }
-            }
-        }
-
-        if (proc->redirect_stderr) {
-            if (fp_err) {
-                fclose(fp_err);
-                fclose(stderr);
-            }
-            if (dup2(fileno(stdout), fileno(stderr)) < 0) {
-                fprintf(stderr, "Unable to redirect stderr to stdout: %s\n", strerror(errno));
-                exit(1);
-            }
-        }
-
-        return execl("/bin/bash", "bash", "--norc", t_name, (char *) NULL);
-    } else {
-        if (waitpid(pid, &status, WUNTRACED) > 0) {
-            if (WIFEXITED(status) && WEXITSTATUS(status)) {
-                if (WEXITSTATUS(status) == 127) {
-                    fprintf(stderr, "execv failed\n");
-                }
-            } else if (WIFSIGNALED(status))  {
-                fprintf(stderr, "signal received: %d\n", WIFSIGNALED(status));
-            }
-        } else {
-            fprintf(stderr, "waitpid() failed\n");
-        }
-    }
-
-    if (!access(t_name, F_OK)) {
-        remove(t_name);
-    }
-
-    proc->returncode = status;
-    guard_free(t_name);
-    return WEXITSTATUS(status);
-}
-
-int shell_safe(struct Process *proc, char *args) {
-    FILE *fp;
-    char buf[1024] = {0};
-    int result;
-
-    char *invalid_ch = strpbrk(args, STASIS_SHELL_SAFE_RESTRICT);
-    if (invalid_ch) {
-        args = NULL;
-    }
-
-    result = shell(proc, args);
-    if (strlen(proc->f_stdout)) {
-        fp = fopen(proc->f_stdout, "r");
-        if (fp) {
-            while (fgets(buf, sizeof(buf) - 1, fp)) {
-                fprintf(stdout, "%s", buf);
-                buf[0] = '\0';
-            }
-            fclose(fp);
-            fp = NULL;
-        }
-    }
-    if (strlen(proc->f_stderr)) {
-        fp = fopen(proc->f_stderr, "r");
-        if (fp) {
-            while (fgets(buf, sizeof(buf) - 1, fp)) {
-                fprintf(stderr, "%s", buf);
-                buf[0] = '\0';
-            }
-            fclose(fp);
-            fp = NULL;
-        }
-    }
-    return result;
-}
-
-char *shell_output(const char *command, int *status) {
-    const size_t initial_size = STASIS_BUFSIZ;
-    size_t current_size = initial_size;
-    char *result = NULL;
-    char line[STASIS_BUFSIZ];
-    FILE *pp;
-
-    errno = 0;
-    *status = 0;
-    pp = popen(command, "r");
-    if (!pp) {
-        *status = -1;
-        return NULL;
-    }
-
-    if (errno) {
-        *status = 1;
-    }
-    result = calloc(initial_size, sizeof(result));
-    memset(line, 0, sizeof(line));
-    while (fread(line, sizeof(char), sizeof(line) - 1, pp) != 0) {
-        size_t result_len = strlen(result);
-        size_t need_realloc = (result_len + strlen(line)) > current_size;
-        if (need_realloc) {
-            current_size += initial_size;
-            char *tmp = realloc(result, sizeof(*result) * current_size);
-            if (!tmp) {
-                return NULL;
-            } else if (tmp != result) {
-                result = tmp;
-            }
-        }
-        strcat(result, line);
-        memset(line, 0, sizeof(line));
-    }
-    *status = pclose(pp);
-    return result;
-}