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  1. /*
  2.  
  3.     @author: 		Alberto Jsé <guzzan0>
  4. 	@package:		pkgrmd - This package remove all dependences alone of a applications.
  5.  
  6. */
  7.  
  8. #include <stdlib.h>
  9. #include <stdio.h>
  10. #include <string.h>
  11. #include <sys/types.h>
  12. #include <sys/stat.h>
  13. #include <dirent.h>
  14.  
  15. #define VERSION "Dannie27"
  16.  
  17. void search_package(char *package_name);
  18. char *depends_parser(FILE *pkgfile_dir);
  19.  
  20. int main(int argc, char *argv[]) 
  21. {
  22. 	if (argc > 1) 
  23. 	{
  24. 		if (strncmp(argv[1], "--info", 6) == 0)
  25. 		{
  26. 			printf("Written by Alberto Jse <guzzan0>\nVersion: %s\n\nPlease report bug to guzzano.ve@gmail.com\n", VERSION);
  27. 		}
  28. 		else if (strncmp(argv[1], "--help", 6) == 0)
  29. 		{
  30. 			printf("Usage: pkgrmd <commands> or <package to remove>\nExample: pkgrmd wine, pkgrmd xorg, etc.\n\n");
  31. 			printf("Commands avaiable: \n\n--help (Show this help) \n--info (Show the current version and author)\n");
  32. 		}
  33. 		else
  34. 		{
  35. 			if ((strlen(argv[1])) > 0 && (strlen(argv[1])) < 25)
  36. 			{
  37. 				search_package(argv[1]);
  38. 			}
  39. 			else
  40. 			{
  41. 				puts("[pkgrmd] Maximum package name is 25");
  42. 			}
  43. 		}
  44. 	}
  45. 	else 
  46. 	{
  47. 		printf("[pkgrmd] Try \"pkgdmr --help\" for more information. \n");
  48. 	}
  49.  
  50. 	return 0;
  51. }
  52.  
  53. char *depends_parser(FILE *pkgfile_dir)
  54. {
  55.  
  56. }
  57.  
  58.  
  59. void search_package(char *package_name)
  60. {
  61. 	FILE* package_installed = fopen("/var/lib/pkg/db", "r");
  62.  
  63. 	char *package_n, package_file_lines[225];
  64. 	int package_install = 0, package_found = 0;
  65.  
  66. 	package_n = (char *) malloc(strlen(package_name)+2);
  67.  
  68. 	if (!package_n)
  69. 	{
  70. 		puts("Malloc can not create more space.");
  71. 		exit(EXIT_FAILURE);
  72. 	}
  73.  
  74. 	sprintf(package_n, "%s\n", package_name);
  75.  
  76. 	if (package_installed != NULL)
  77. 	{
  78. 		while (fgets(package_file_lines, sizeof(package_file_lines), package_installed) != NULL)
  79. 		{
  80. 			if (strcmp(package_file_lines, package_n) == 0)
  81. 			{
  82. 				package_install = 1;
  83. 				break;
  84. 			}
  85. 			else
  86. 			{
  87. 				package_install = 0;
  88. 			}
  89. 		}
  90. 		free(package_n);
  91. 	}
  92. 	else
  93. 	{
  94. 		puts("[pkgrmd] I can't open file: /var/lib/pkg/db - Sorry");
  95. 		exit(EXIT_FAILURE);
  96. 	}
  97.  
  98. 	fclose(package_installed);
  99.  
  100. 	if (package_install == 1)
  101. 	{
  102. 		DIR *ports_directory, *package_directory;
  103. 		struct dirent *structure_directory, *structure_package;
  104.  
  105. 		char ports_base[12] = "/usr/ports/", *package_directories = NULL;
  106.  
  107. 		if ((ports_directory = opendir(ports_base)) != NULL) 
  108. 		{
  109. 			while ((structure_directory = readdir(ports_directory)) != NULL)
  110. 			{
  111. 				if (*structure_directory->d_name == '.') 
  112. 					continue;
  113.  
  114. 				if (package_found == 1)
  115. 					break;
  116.  
  117. 				package_directories = (char *) malloc(strlen(ports_base)+strlen(structure_directory->d_name)+1);
  118. 				if (!package_directories)
  119. 				{
  120. 					puts("Malloc can't create more space.");
  121. 					exit(EXIT_FAILURE);
  122. 				}
  123.  
  124. 				sprintf(package_directories, "%s%s/", ports_base, structure_directory->d_name);
  125.  
  126. 				if ((package_directory = opendir(package_directories)) != NULL)
  127. 				{
  128. 					while ((structure_package = readdir(package_directory)) != NULL)
  129. 					{
  130. 						if (*structure_package->d_name == '.') 
  131. 							continue;
  132.  
  133. 						if (strcmp(package_name, structure_package->d_name) == 0)
  134. 						{
  135. 							FILE *pkgbuild;
  136. 							char *depends;
  137.  
  138. 							package_found = 1;
  139.  
  140. 							depends = (char *) malloc(strlen(package_directories)+strlen(structure_package->d_name)+9);
  141. 							if (!depends)
  142. 							{
  143. 								puts("Malloc can't create more space.");
  144. 								exit(EXIT_FAILURE);
  145. 							}
  146.  
  147. 							sprintf(depends, "%s%s/Pkgfile", package_directories, structure_package->d_name);
  148.  
  149. 							if ((pkgbuild = fopen(depends, "r")))
  150. 							{
  151. 								struct stat verify_file;
  152. 								stat(depends, &verify_file);
  153.  
  154. 								if (verify_file.st_size <= 0)
  155. 								{
  156. 									printf("[pkgrmd] The file: %s this in blank. Please verify and try again. \n", depends);
  157. 									exit(EXIT_FAILURE);
  158. 								}
  159. 								else if (verify_file.st_size > 0)
  160. 								{
  161. 									depends_parser(pkgbuild);
  162. 								}
  163.  
  164. 							fclose(pkgbuild);
  165. 							}
  166. 							else
  167. 							{
  168. 								printf("[pkgrmd] The package %s not have file pkgfile. Renew pkgfile with commands \"ports -u\" and try again. \n", structure_package->d_name);
  169. 							}
  170.  
  171. 							break;
  172. 						}
  173. 					}
  174. 				}
  175. 				else
  176. 				{
  177. 					printf("[pkgrmd] This error no is fatal. But I can't open dir: %s%s", package_directories, structure_package->d_name);
  178. 				}
  179. 			}
  180. 			closedir(ports_directory);
  181. 			closedir(package_directory);
  182. 		}
  183. 		else 
  184. 		{
  185. 			printf("[pkgrmd] I cant read directory: %s, you have installed prt-get?", ports_base);
  186. 		}
  187. 	}
  188. 	else
  189. 	{
  190. 		printf("[pkgrmd] The package %s not is installed. \n[pkgrmd] Please verify package with: prt-get search [name_package] \n", package_name);
  191. 	}
  192. }
Success #stdin #stdout 0.01s 1680KB
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[pkgrmd] Try "pkgdmr --help" for more information.
https://ideone.com/zvqJYX
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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