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/* * ProFTPD - FTP server daemon * Copyright (c) 2016-2017 The ProFTPD Project team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. * * As a special exemption, The ProFTPD Project team and other respective * copyright holders give permission to link this program with OpenSSL, and * distribute the resulting executable, without including the source code for * OpenSSL in the source distribution. / / Error API / #ifndef PR_ERROR_H #define PR_ERROR_H #include "os.h" #include "pool.h" #include "table.h" #include "dirtree.h" #include "modules.h" typedef struct err_rec pr_error_t; struct err_explain_rec { / Explain accept(2) errors. / const char (explain_accept)(pool p, int xerrno, int fd, struct sockaddr addr, socklen_t addr_len, const char *args); / Explain bind(2) errors. / const char (explain_bind)(pool p, int xerrno, int fd, const struct sockaddr addr, socklen_t addr_len, const char args); / Explain chdir(2) errors. / const char (explain_chdir)(pool p, int xerrno, const char path, const char args); / Explain chmod(2) errors. / const char (explain_chmod)(pool p, int xerrno, const char path, mode_t mode, const char args); / Explain chown(2) errors. / const char (explain_chown)(pool p, int xerrno, const char path, uid_t uid, gid_t gid, const char args); / Explain chroot(2) errors. / const char (explain_chroot)(pool p, int xerrno, const char path, const char args); / Explain close(2) errors. / const char (explain_close)(pool p, int xerrno, int fd, const char *args); / Explain closedir(3) errors. / const char (explain_closedir)(pool p, int xerrno, void dirh, const char args); / Explain connect(2) errors. / const char (explain_connect)(pool p, int xerrno, int fd, const struct sockaddr addr, socklen_t addr_len, const char args); / Explain fchmod(2) errors. / const char (explain_fchmod)(pool p, int xerrno, int fd, mode_t mode, const char *args); / Explain fchown(2) errors. / const char (explain_fchown)(pool p, int xerrno, int fd, uid_t uid, gid_t gid, const char *args); / Explain fclose(3) errors. / const char (explain_fclose)(pool p, int xerrno, FILE fh, const char args); / Explain fcntl(2) errors. / const char (explain_fcntl)(pool p, int xerrno, int fd, int oper, long arg, const char *args); / Explain fdopen(3) errors. / const char (explain_fdopen)(pool p, int xerrno, int fd, const char mode, const char args); / Explain flock(2) errors. / const char (explain_flock)(pool p, int xerrno, int fd, int oper, const char *args); / Explain fopen(3) errors. / const char (explain_fopen)(pool p, int xerrno, const char path, const char mode, const char *args); / Explain fork(2) errors. / const char (explain_fork)(pool p, int xerrno, const char *args); / Explain fstat(2) errors. / const char (explain_fstat)(pool p, int xerrno, int fd, struct stat st, const char args); / Explain fstatfs(2) errors. / const char (explain_fstatfs)(pool p, int xerrno, int fd, void stfs, const char args); / Explain fstatvfs(2) errors. / const char (explain_fstatvfs)(pool p, int xerrno, int fd, void stfs, const char args); / Explain fsync(2) errors. / const char (explain_fsync)(pool p, int xerrno, int fd, const char *args); / Explain ftruncate(2) errors. / const char (explain_ftruncate)(pool p, int xerrno, int fd, off_t len, const char *args); / Explain futimes(2) errors. / const char (explain_futimes)(pool p, int xerrno, int fd, const struct timeval tvs, const char args); / Explain getaddrinfo(2) errors. / const char (explain_getaddrinfo)(pool p, int xerrno, const char name, const char service, const struct addrinfo hints, struct addrinfo res, const char args); / Explain gethostbyname(2) errors. / const char (explain_gethostbyname)(pool p, int xerrno, const char name, const char args); / Explain gethostbyname2(2) errors. / const char (explain_gethostbyname2)(pool p, int xerrno, const char name, int family, const char args); / Explain gethostname(2) errors. / const char (explain_gethostname)(pool p, int xernro, char buf, size_t sz, const char args); / Explain getnameinfo(2) errors. / const char (explain_getnameinfo)(pool p, int xerrno, const struct sockaddr addr, socklen_t addr_len, char host, size_t host_len, char service, size_t service_len, int flags, const char args); / Explain getpeername(2) errors. / const char (explain_getpeername)(pool p, int xerrno, int fd, struct sockaddr addr, socklen_t addr_len, const char *args); / Explain getrlimit(2) errors. / const char (explain_getrlimit)(pool p, int xerrno, int resource, struct rlimit rlim, const char args); / Explain getsockname(2) errors. / const char (explain_getsockname)(pool p, int xerrno, int fd, struct sockaddr addr, socklen_t addr_len, const char *args); / Explain getsockopt(2) errors. / const char (explain_getsockopt)(pool p, int xerrno, int fd, int level, int option, void val, socklen_t valsz, const char *args); / Explain lchown(2) errors. / const char (explain_lchown)(pool p, int xerrno, const char path, uid_t uid, gid_t gid, const char args); / Explain link(2) errors. / const char (explain_link)(pool p, int xerrno, const char target_path, const char link_path, const char *args); / Explain listen(2) errors. / const char (explain_listen)(pool p, int xerrno, int fd, int backlog, const char *args); / Explain lseek(2) errors. / const char (explain_lseek)(pool p, int xerrno, int fd, off_t offset, int whence, const char *args); / Explain lstat(2) errors. / const char (explain_lstat)(pool p, int xerrno, const char path, struct stat st, const char *args); / Explain mkdir(2) errors. / const char (explain_mkdir)(pool p, int xerrno, const char path, mode_t mode, const char args); / Explain mkdtemp(3) errors. / const char (explain_mkdtemp)(pool p, int xerrno, char tmpl, const char args); / Explain mkstemp(3) errors. / const char (explain_mkstemp)(pool p, int xerrno, char tmpl, const char args); / Explain open(2) errors. / const char (explain_open)(pool p, int xerrno, const char path, int flags, mode_t mode, const char args); / Explain opendir(3) errors. / const char (explain_opendir)(pool p, int xerrno, const char path, const char args); / Explain read(2) errors. / const char (explain_read)(pool p, int xerrno, int fd, void buf, size_t sz, const char args); / Explain readdir(3) errors. / const char (explain_readdir)(pool p, int xerrno, void dirh, const char args); / Explain readlink(2) errors. / const char (explain_readlink)(pool p, int xerrno, const char path, char buf, size_t sz, const char *args); / Explain readv(2) errors. / const char (explain_readv)(pool p, int xerrno, int fd, const struct iovec iov, int iov_len, const char args); / Explain rename(2) errors. / const char (explain_rename)(pool p, int xerrno, const char old_path, const char new_path, const char *args); / Explain rmdir(2) errors. / const char (explain_rmdir)(pool p, int xerrno, const char path, const char args); / Explain setegid(2) errors. / const char (explain_setegid)(pool p, int xerrno, gid_t gid, const char *args); / Explain seteuid(2) errors. / const char (explain_seteuid)(pool p, int xerrno, uid_t uid, const char *args); / Explain setgid(2) errors. / const char (explain_setgid)(pool p, int xerrno, gid_t gid, const char *args); / Explain setregid(2) errors. / const char (explain_setregid)(pool p, int xerrno, gid_t rgid, gid_t egid, const char *args); / Explain setresgid(2) errors. / const char (explain_setresgid)(pool p, int xerrno, gid_t rgid, gid_t egid, gid_t sgid, const char *args); / Explain setresuid(2) errors. / const char (explain_setresuid)(pool p, int xerrno, uid_t ruid, uid_t euid, uid_t suid, const char *args); / Explain setreuid(2) errors. / const char (explain_setreuid)(pool p, int xerrno, uid_t ruid, uid_t euid, const char *args); / Explain setrlimit(2) errors. / const char (explain_setrlimit)(pool p, int xerrno, int resource, const struct rlimit rlim, const char args); / Explain setsockopt(2) errors. / const char (explain_setsockopt)(pool p, int xerrno, int fd, int level, int option, const void val, socklen_t valsz, const char args); / Explain setuid(2) errors. / const char (explain_setuid)(pool p, int xerrno, uid_t uid, const char *args); / Explain socket(2) errors. / const char (explain_socket)(pool p, int xerrno, int domain, int type, int proto, const char *args); / Explain stat(2) errors. / const char (explain_stat)(pool p, int xerrno, const char path, struct stat st, const char *args); / Explain statfs(2) errors. / const char (explain_statfs)(pool p, int xerrno, const char path, void stfs, const char *args); / Explain statvfs(2) errors. / const char (explain_statvfs)(pool p, int xerrno, const char path, void stfs, const char *args); / Explain symlink(2) errors. / const char (explain_symlink)(pool p, int xerrno, const char target_path, const char link_path, const char *args); / Explain truncate(2) errors. / const char (explain_truncate)(pool p, int xerrno, const char path, off_t len, const char args); / Explain unlink(2) errors. / const char (explain_unlink)(pool p, int xerrno, const char path, const char args); / Explain utimes(2) errors. / const char (explain_utimes)(pool p, int xerrno, const char path, const struct timeval tvs, const char *args); / Explain write(2) errors. / const char (explain_write)(pool p, int xerrno, int fd, const void buf, size_t sz, const char args); / Explain writev(2) errors. / const char (explain_writev)(pool p, int xerrno, int fd, const struct iovec iov, int iov_len, const char args); }; typedef struct err_explain_rec pr_error_explainer_t; pr_error_t pr_error_create(pool p, int xerrno); void pr_error_destroy(pr_error_t err); /* Get the identity of the process at the time this error was created. / int pr_error_get_who(pr_error_t err, uid_t err_uid, gid_t err_gid); int pr_error_set_why(pr_error_t err, const char goal); int pr_error_set_where(pr_error_t err, module m, const char file, unsigned int lineno); int pr_error_set_what(pr_error_t err, const char what); unsigned int pr_error_use_details(unsigned int use_details); #define PR_ERROR_DETAILS_USE_NAMES 0x00001 #define PR_ERROR_DETAILS_USE_IDS 0x00002 #define PR_ERROR_DETAILS_USE_PROTOCOL 0x00004 #define PR_ERROR_DETAILS_USE_MODULE 0x00008 #define PR_ERROR_DETAILS_USE_FILE 0x00010 #define PR_ERROR_DETAILS_DEFAULT \ (PR_ERROR_DETAILS_USE_NAMES\|PR_ERROR_DETAILS_USE_IDS\| \ PR_ERROR_DETAILS_USE_PROTOCOL\|PR_ERROR_DETAILS_USE_MODULE\| \ PR_ERROR_DETAILS_USE_FILE) / Set the list of allowed formats (verbosity). / unsigned int pr_error_use_formats(unsigned int use_formats); #define PR_ERROR_FORMAT_USE_DETAILED 0x001 #define PR_ERROR_FORMAT_USE_TERSE 0x002 #define PR_ERROR_FORMAT_USE_MINIMAL 0x004 #define PR_ERROR_FORMAT_DEFAULT \ (PR_ERROR_FORMAT_USE_DETAILED\|PR_ERROR_FORMAT_USE_MINIMAL) / Convert the error into a textual representation (determined by use_format) * for consumption/use in e.g. logging. / const char pr_error_strerror(pr_error_t err, int use_format); pr_error_explainer_t pr_error_register_explainer(pool p, module m, const char name); int pr_error_unregister_explainer(pool p, module m, const char name); /* Choose which explainer to use by name. / int pr_error_use_explainer(pool p, module m, const char name); /* Explain individual operations' errors. The list of explainable operations * is NOT meant to be a comprehensive list of all system/library calls used * by ProFTPD and its modules. Instead, the list of operations is meant * mostly for those operations whose failure will be user/admin-visible, AND * whose explanations can be useful for the user/admin for correcting the * cause of the problem. / int pr_error_explain_accept(pr_error_t err, int fd, struct sockaddr addr, socklen_t addr_len); int pr_error_explain_bind(pr_error_t err, int fd, const struct sockaddr addr, socklen_t addr_len); int pr_error_explain_chdir(pr_error_t err, const char path); int pr_error_explain_chmod(pr_error_t err, const char path, mode_t mode); int pr_error_explain_chown(pr_error_t err, const char path, uid_t uid, gid_t gid); int pr_error_explain_chroot(pr_error_t err, const char path); int pr_error_explain_close(pr_error_t err, int fd); int pr_error_explain_closedir(pr_error_t err, void dirh); int pr_error_explain_connect(pr_error_t err, int fd, const struct sockaddr addr, socklen_t addr_len); int pr_error_explain_fchmod(pr_error_t err, int fd, mode_t mode); int pr_error_explain_fchown(pr_error_t err, int fd, uid_t uid, gid_t gid); int pr_error_explain_fclose(pr_error_t err, FILE fh); int pr_error_explain_fcntl(pr_error_t err, int fd, int oper, long arg); int pr_error_explain_fdopen(pr_error_t err, int fd, const char mode); int pr_error_explain_flock(pr_error_t err, int fd, int oper); int pr_error_explain_fopen(pr_error_t err, const char path, const char mode); int pr_error_explain_fork(pr_error_t err); int pr_error_explain_fstat(pr_error_t err, int fd, struct stat st); int pr_error_explain_fstatfs(pr_error_t err, int fd, void stfs); int pr_error_explain_fstatvfs(pr_error_t err, int fd, void stfs); int pr_error_explain_fsync(pr_error_t err, int fd); int pr_error_explain_ftruncate(pr_error_t err, int fd, off_t len); int pr_error_explain_futimes(pr_error_t err, int fd, const struct timeval tvs); int pr_error_explain_getaddrinfo(pr_error_t err, const char name, const char service, const struct addrinfo hints, struct addrinfo res); int pr_error_explain_gethostbyname(pr_error_t err, const char name); int pr_error_explain_gethostbyname2(pr_error_t err, const char name, int family); int pr_error_explain_gethostname(pr_error_t err, char buf, size_t sz); int pr_error_explain_getnameinfo(pr_error_t err, const struct sockaddr addr, socklen_t addr_len, char host, size_t host_len, char service, size_t service_len, int flags); int pr_error_explain_getpeername(pr_error_t err, int fd, struct sockaddr addr, socklen_t addr_len); int pr_error_explain_getrlimit(pr_error_t err, int resource, struct rlimit rlim); int pr_error_explain_getsockname(pr_error_t err, int fd, struct sockaddr addr, socklen_t addr_len); int pr_error_explain_getsockopt(pr_error_t err, int fd, int level, int option, void val, socklen_t valsz); int pr_error_explain_lchown(pr_error_t err, const char path, uid_t uid, gid_t gid); int pr_error_explain_link(pr_error_t err, const char target_path, const char link_path); int pr_error_explain_listen(pr_error_t err, int fd, int backlog); int pr_error_explain_lseek(pr_error_t err, int fd, off_t offset, int whence); int pr_error_explain_lstat(pr_error_t err, const char path, struct stat st); int pr_error_explain_mkdir(pr_error_t err, const char path, mode_t mode); int pr_error_explain_mkdtemp(pr_error_t err, char tmpl); int pr_error_explain_mkstemp(pr_error_t err, char tmpl); int pr_error_explain_open(pr_error_t err, const char path, int flags, mode_t mode); int pr_error_explain_opendir(pr_error_t err, const char path); int pr_error_explain_read(pr_error_t err, int fd, void buf, size_t sz); int pr_error_explain_readdir(pr_error_t err, void dirh); int pr_error_explain_readlink(pr_error_t err, const char path, char buf, size_t sz); int pr_error_explain_readv(pr_error_t err, int fd, const struct iovec iov, int iov_len); int pr_error_explain_rename(pr_error_t err, const char old_path, const char new_path); int pr_error_explain_rmdir(pr_error_t err, const char path); int pr_error_explain_setegid(pr_error_t err, gid_t gid); int pr_error_explain_seteuid(pr_error_t err, uid_t uid); int pr_error_explain_setgid(pr_error_t err, gid_t gid); int pr_error_explain_setregid(pr_error_t err, gid_t rgid, gid_t egid); int pr_error_explain_setresgid(pr_error_t err, gid_t rgid, gid_t egid, gid_t sgid); int pr_error_explain_setresuid(pr_error_t err, uid_t ruid, uid_t euid, uid_t suid); int pr_error_explain_setreuid(pr_error_t err, uid_t ruid, uid_t euid); int pr_error_explain_setrlimit(pr_error_t err, int resource, const struct rlimit rlim); int pr_error_explain_setsockopt(pr_error_t err, int fd, int level, int option, const void val, socklen_t valsz); int pr_error_explain_setuid(pr_error_t err, uid_t uid); int pr_error_explain_socket(pr_error_t err, int domain, int type, int proto); int pr_error_explain_stat(pr_error_t err, const char path, struct stat st); int pr_error_explain_statfs(pr_error_t err, const char path, void stfs); int pr_error_explain_statvfs(pr_error_t err, const char path, void stfs); int pr_error_explain_symlink(pr_error_t err, const char target_path, const char link_path); int pr_error_explain_truncate(pr_error_t err, const char path, off_t len); int pr_error_explain_unlink(pr_error_t err, const char path); int pr_error_explain_utimes(pr_error_t err, const char path, const struct timeval tvs); int pr_error_explain_write(pr_error_t err, int fd, const void buf, size_t sz); int pr_error_explain_writev(pr_error_t err, int fd, const struct iovec iov, int iov_len); #endif /* PR_ERROR_H */

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