Mercurial > hg > nginx-quic
view src/os/unix/ngx_shmem.c @ 8251:8989fbd2f89a
Fixed parsing of absolute URIs with empty path (ticket #2079).
When the request line contains request-target in the absolute-URI form,
it can contain path-empty instead of a single slash (see RFC 7230, RFC 3986).
Previously, the ngx_http_parse_request_line() function only accepted empty
path when there was no query string.
With this change, non-empty query is also correctly handled. That is,
request line "GET http://example.com?foo HTTP/1.1" is accepted and results
in $uri "/" and $args "foo".
Note that $request_uri remains "?foo", similarly to how spaces in URIs
are handled. Providing "/?foo", similarly to how "/" is provided for
"GET http://example.com HTTP/1.1", requires allocation.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 10 Dec 2020 20:09:30 +0300 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #if (NGX_HAVE_MAP_ANON) ngx_int_t ngx_shm_alloc(ngx_shm_t *shm) { shm->addr = (u_char *) mmap(NULL, shm->size, PROT_READ|PROT_WRITE, MAP_ANON|MAP_SHARED, -1, 0); if (shm->addr == MAP_FAILED) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "mmap(MAP_ANON|MAP_SHARED, %uz) failed", shm->size); return NGX_ERROR; } return NGX_OK; } void ngx_shm_free(ngx_shm_t *shm) { if (munmap((void *) shm->addr, shm->size) == -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "munmap(%p, %uz) failed", shm->addr, shm->size); } } #elif (NGX_HAVE_MAP_DEVZERO) ngx_int_t ngx_shm_alloc(ngx_shm_t *shm) { ngx_fd_t fd; fd = open("/dev/zero", O_RDWR); if (fd == -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "open(\"/dev/zero\") failed"); return NGX_ERROR; } shm->addr = (u_char *) mmap(NULL, shm->size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); if (shm->addr == MAP_FAILED) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "mmap(/dev/zero, MAP_SHARED, %uz) failed", shm->size); } if (close(fd) == -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "close(\"/dev/zero\") failed"); } return (shm->addr == MAP_FAILED) ? NGX_ERROR : NGX_OK; } void ngx_shm_free(ngx_shm_t *shm) { if (munmap((void *) shm->addr, shm->size) == -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "munmap(%p, %uz) failed", shm->addr, shm->size); } } #elif (NGX_HAVE_SYSVSHM) #include <sys/ipc.h> #include <sys/shm.h> ngx_int_t ngx_shm_alloc(ngx_shm_t *shm) { int id; id = shmget(IPC_PRIVATE, shm->size, (SHM_R|SHM_W|IPC_CREAT)); if (id == -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "shmget(%uz) failed", shm->size); return NGX_ERROR; } ngx_log_debug1(NGX_LOG_DEBUG_CORE, shm->log, 0, "shmget id: %d", id); shm->addr = shmat(id, NULL, 0); if (shm->addr == (void *) -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "shmat() failed"); } if (shmctl(id, IPC_RMID, NULL) == -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "shmctl(IPC_RMID) failed"); } return (shm->addr == (void *) -1) ? NGX_ERROR : NGX_OK; } void ngx_shm_free(ngx_shm_t *shm) { if (shmdt(shm->addr) == -1) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "shmdt(%p) failed", shm->addr); } } #endif