Implement FilePermissions() for UNIX et al.

setter/unix.c

@@ -37,10 +37,16 @@ Copyright (C) 2011-2018 Natalia Portillo
 
 #include <errno.h>
 #include <inttypes.h>
+#include <limits.h>
+#include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
 #include <sys/statfs.h>
+#include <sys/types.h>
 #include <sys/utsname.h>
+#include <unistd.h>
 
 void GetOsInfo()
 {
@@ -249,11 +255,197 @@ void GetVolumeInfo(const char *path, size_t *clusterSize)
 
 void FileAttributes(const char *path)
 {
-    // TODO: Implement
+    // Operating system dependent
 }
 
 void FilePermissions(const char *path)
-{ /* Do nothing, not supported by target operating system */
+{
+    int   ret;
+    FILE *file;
+    int   rc;
+    int   cRc;
+
+    ret = chdir(path);
+
+    if(ret)
+    {
+        printf("Error %d changing to specified path.\n", errno);
+        return;
+    }
+
+    ret = mkdir("PERMS", 0755);
+
+    if(ret)
+    {
+        printf("Error %d creating working directory.\n", errno);
+        return;
+    }
+
+    ret = chdir("PERMS");
+
+    if(ret)
+    {
+        printf("Error %d changing to working directory.\n", errno);
+        return;
+    }
+
+    printf("Creating attributes files.\n");
+
+    file = fopen("NONE", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with no permissions.\n");
+        fclose(file);
+        cRc = chmod("NONE", 0);
+    }
+    printf("\tFile with no permissions: name = \"%s\", rc = %d, cRc = %d\n", "NONE", rc, cRc);
+
+    file = fopen("04000", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with set-user-ID.\n");
+        fclose(file);
+        cRc = chmod("04000", 04000);
+    }
+    printf("\tFile with set-user-ID: name = \"%s\", rc = %d, cRc = %d\n", "04000", rc, cRc);
+
+    file = fopen("02000", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with set-group-ID.\n");
+        fclose(file);
+        cRc = chmod("02000", 02000);
+    }
+    printf("\tFile with set-group-ID: name = \"%s\", rc = %d, cRc = %d\n", "02000", rc, cRc);
+
+    file = fopen("01000", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with sticky bit.\n");
+        fclose(file);
+        cRc = chmod("01000", 01000);
+    }
+    printf("\tFile with sticky bit: name = \"%s\", rc = %d, cRc = %d\n", "01000", rc, cRc);
+
+    file = fopen("00400", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with read by owner.\n");
+        fclose(file);
+        cRc = chmod("00400", 00400);
+    }
+    printf("\tFile with read by owner: name = \"%s\", rc = %d, cRc = %d\n", "00400", rc, cRc);
+
+    file = fopen("00200", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with write by owner.\n");
+        fclose(file);
+        cRc = chmod("00200", 00200);
+    }
+    printf("\tFile with write by owner: name = \"%s\", rc = %d, cRc = %d\n", "00200", rc, cRc);
+
+    file = fopen("00100", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with execute by owner.\n");
+        fclose(file);
+        cRc = chmod("00100", 00100);
+    }
+    printf("\tFile with execute by owner: name = \"%s\", rc = %d, cRc = %d\n", "00100", rc, cRc);
+
+    file = fopen("00040", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with read by group.\n");
+        fclose(file);
+        cRc = chmod("00040", 00040);
+    }
+    printf("\tFile with read by group: name = \"%s\", rc = %d, cRc = %d\n", "00040", rc, cRc);
+
+    file = fopen("00020", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with write by group.\n");
+        fclose(file);
+        cRc = chmod("00020", 00020);
+    }
+    printf("\tFile with write by group: name = \"%s\", rc = %d, cRc = %d\n", "00020", rc, cRc);
+
+    file = fopen("00010", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with execute by group.\n");
+        fclose(file);
+        cRc = chmod("00010", 00010);
+    }
+    printf("\tFile with execute by group: name = \"%s\", rc = %d, cRc = %d\n", "00010", rc, cRc);
+
+    file = fopen("00004", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with read by others.\n");
+        fclose(file);
+        cRc = chmod("00004", 00004);
+    }
+    printf("\tFile with read by others: name = \"%s\", rc = %d, cRc = %d\n", "00004", rc, cRc);
+
+    file = fopen("00002", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with write by others.\n");
+        fclose(file);
+        cRc = chmod("00002", 00002);
+    }
+    printf("\tFile with write by others: name = \"%s\", rc = %d, cRc = %d\n", "00002", rc, cRc);
+
+    file = fopen("00001", "w+");
+    rc   = 0;
+    cRc  = 0;
+    if(!file) { rc = errno; }
+    else
+    {
+        fprintf(file, "File with execute by others.\n");
+        fclose(file);
+        cRc = chmod("00001", 00001);
+    }
+    printf("\tFile with execute by others: name = \"%s\", rc = %d, cRc = %d\n", "00001", rc, cRc);
 }
 
 void ExtendedAttributes(const char *path)