diff options
Diffstat (limited to 'src/posix.c')
| -rw-r--r-- | src/posix.c | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/src/posix.c b/src/posix.c deleted file mode 100644 index c40134824..000000000 --- a/src/posix.c +++ /dev/null @@ -1,303 +0,0 @@ -/* - * Copyright (C) the libgit2 contributors. All rights reserved. - * - * This file is part of libgit2, distributed under the GNU GPL v2 with - * a Linking Exception. For full terms see the included COPYING file. - */ - -#include "posix.h" - -#include "path.h" -#include <stdio.h> -#include <ctype.h> - -size_t p_fsync__cnt = 0; - -#ifndef GIT_WIN32 - -#ifdef NO_ADDRINFO - -int p_getaddrinfo( - const char *host, - const char *port, - struct addrinfo *hints, - struct addrinfo **info) -{ - struct addrinfo *ainfo, *ai; - int p = 0; - - GIT_UNUSED(hints); - - if ((ainfo = git__malloc(sizeof(struct addrinfo))) == NULL) - return -1; - - if ((ainfo->ai_hostent = gethostbyname(host)) == NULL) { - git__free(ainfo); - return -2; - } - - ainfo->ai_servent = getservbyname(port, 0); - - if (ainfo->ai_servent) - ainfo->ai_port = ainfo->ai_servent->s_port; - else - ainfo->ai_port = htons(atol(port)); - - memcpy(&ainfo->ai_addr_in.sin_addr, - ainfo->ai_hostent->h_addr_list[0], - ainfo->ai_hostent->h_length); - - ainfo->ai_protocol = 0; - ainfo->ai_socktype = hints->ai_socktype; - ainfo->ai_family = ainfo->ai_hostent->h_addrtype; - ainfo->ai_addr_in.sin_family = ainfo->ai_family; - ainfo->ai_addr_in.sin_port = ainfo->ai_port; - ainfo->ai_addr = (struct addrinfo *)&ainfo->ai_addr_in; - ainfo->ai_addrlen = sizeof(struct sockaddr_in); - - *info = ainfo; - - if (ainfo->ai_hostent->h_addr_list[1] == NULL) { - ainfo->ai_next = NULL; - return 0; - } - - ai = ainfo; - - for (p = 1; ainfo->ai_hostent->h_addr_list[p] != NULL; p++) { - if (!(ai->ai_next = git__malloc(sizeof(struct addrinfo)))) { - p_freeaddrinfo(ainfo); - return -1; - } - memcpy(ai->ai_next, ainfo, sizeof(struct addrinfo)); - memcpy(&ai->ai_next->ai_addr_in.sin_addr, - ainfo->ai_hostent->h_addr_list[p], - ainfo->ai_hostent->h_length); - ai->ai_next->ai_addr = (struct addrinfo *)&ai->ai_next->ai_addr_in; - ai = ai->ai_next; - } - - ai->ai_next = NULL; - return 0; -} - -void p_freeaddrinfo(struct addrinfo *info) -{ - struct addrinfo *p, *next; - - p = info; - - while(p != NULL) { - next = p->ai_next; - git__free(p); - p = next; - } -} - -const char *p_gai_strerror(int ret) -{ - switch(ret) { - case -1: return "Out of memory"; break; - case -2: return "Address lookup failed"; break; - default: return "Unknown error"; break; - } -} - -#endif /* NO_ADDRINFO */ - -int p_open(const char *path, volatile int flags, ...) -{ - mode_t mode = 0; - - #ifdef GIT_DEBUG_STRICT_OPEN - if (strstr(path, "//") != NULL) { - errno = EACCES; - return -1; - } - #endif - - if (flags & O_CREAT) { - va_list arg_list; - - va_start(arg_list, flags); - mode = (mode_t)va_arg(arg_list, int); - va_end(arg_list); - } - - return open(path, flags | O_BINARY | O_CLOEXEC, mode); -} - -int p_creat(const char *path, mode_t mode) -{ - return open(path, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_CLOEXEC, mode); -} - -int p_getcwd(char *buffer_out, size_t size) -{ - char *cwd_buffer; - - GIT_ASSERT_ARG(buffer_out); - GIT_ASSERT_ARG(size > 0); - - cwd_buffer = getcwd(buffer_out, size); - - if (cwd_buffer == NULL) - return -1; - - git_path_mkposix(buffer_out); - git_path_string_to_dir(buffer_out, size); /* append trailing slash */ - - return 0; -} - -int p_rename(const char *from, const char *to) -{ - if (!link(from, to)) { - p_unlink(from); - return 0; - } - - if (!rename(from, to)) - return 0; - - return -1; -} - -#endif /* GIT_WIN32 */ - -ssize_t p_read(git_file fd, void *buf, size_t cnt) -{ - char *b = buf; - - if (!git__is_ssizet(cnt)) { -#ifdef GIT_WIN32 - SetLastError(ERROR_INVALID_PARAMETER); -#endif - errno = EINVAL; - return -1; - } - - while (cnt) { - ssize_t r; -#ifdef GIT_WIN32 - r = read(fd, b, cnt > INT_MAX ? INT_MAX : (unsigned int)cnt); -#else - r = read(fd, b, cnt); -#endif - if (r < 0) { - if (errno == EINTR || errno == EAGAIN) - continue; - return -1; - } - if (!r) - break; - cnt -= r; - b += r; - } - return (b - (char *)buf); -} - -int p_write(git_file fd, const void *buf, size_t cnt) -{ - const char *b = buf; - - while (cnt) { - ssize_t r; -#ifdef GIT_WIN32 - GIT_ASSERT((size_t)((unsigned int)cnt) == cnt); - r = write(fd, b, (unsigned int)cnt); -#else - r = write(fd, b, cnt); -#endif - if (r < 0) { - if (errno == EINTR || GIT_ISBLOCKED(errno)) - continue; - return -1; - } - if (!r) { - errno = EPIPE; - return -1; - } - cnt -= r; - b += r; - } - return 0; -} - -#ifdef NO_MMAP - -#include "map.h" - -int git__page_size(size_t *page_size) -{ - /* dummy; here we don't need any alignment anyway */ - *page_size = 4096; - return 0; -} - -int git__mmap_alignment(size_t *alignment) -{ - /* dummy; here we don't need any alignment anyway */ - *alignment = 4096; - return 0; -} - - -int p_mmap(git_map *out, size_t len, int prot, int flags, int fd, off64_t offset) -{ - const char *ptr; - size_t remaining_len; - - GIT_MMAP_VALIDATE(out, len, prot, flags); - - /* writes cannot be emulated without handling pagefaults since write happens by - * writing to mapped memory */ - if (prot & GIT_PROT_WRITE) { - git_error_set(GIT_ERROR_OS, "trying to map %s-writeable", - ((flags & GIT_MAP_TYPE) == GIT_MAP_SHARED) ? "shared": "private"); - return -1; - } - - if (!git__is_ssizet(len)) { - errno = EINVAL; - return -1; - } - - out->len = 0; - out->data = git__malloc(len); - GIT_ERROR_CHECK_ALLOC(out->data); - - remaining_len = len; - ptr = (const char *)out->data; - while (remaining_len > 0) { - ssize_t nb; - HANDLE_EINTR(nb, p_pread(fd, (void *)ptr, remaining_len, offset)); - if (nb <= 0) { - git_error_set(GIT_ERROR_OS, "mmap emulation failed"); - git__free(out->data); - out->data = NULL; - return -1; - } - - ptr += nb; - offset += nb; - remaining_len -= nb; - } - - out->len = len; - return 0; -} - -int p_munmap(git_map *map) -{ - GIT_ASSERT_ARG(map); - git__free(map->data); - - /* Initializing will help debug use-after-free */ - map->len = 0; - map->data = NULL; - - return 0; -} - -#endif |