diff options
| -rw-r--r-- | qga/commands-posix.c | 19 | ||||
| -rw-r--r-- | qga/commands-win32.c | 20 | ||||
| -rw-r--r-- | qga/guest-agent-core.h | 7 | ||||
| -rw-r--r-- | qga/qapi-schema.json | 4 | ||||
| -rw-r--r-- | tests/test-qga.c | 5 |
5 files changed, 49 insertions, 6 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c index cf1d7ec8c0..c2ff97021f 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -553,17 +553,34 @@ GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, } struct GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, - int64_t whence, Error **errp) + int64_t whence_code, Error **errp) { GuestFileHandle *gfh = guest_file_handle_find(handle, errp); GuestFileSeek *seek_data = NULL; FILE *fh; int ret; + int whence; if (!gfh) { return NULL; } + /* We stupidly exposed 'whence':'int' in our qapi */ + switch (whence_code) { + case QGA_SEEK_SET: + whence = SEEK_SET; + break; + case QGA_SEEK_CUR: + whence = SEEK_CUR; + break; + case QGA_SEEK_END: + whence = SEEK_END; + break; + default: + error_setg(errp, "invalid whence code %"PRId64, whence_code); + return NULL; + } + fh = gfh->fh; ret = fseek(fh, offset, whence); if (ret == -1) { diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 41f6dd9fed..0654fe4fe7 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -382,7 +382,7 @@ done: } GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, - int64_t whence, Error **errp) + int64_t whence_code, Error **errp) { GuestFileHandle *gfh; GuestFileSeek *seek_data; @@ -390,11 +390,29 @@ GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, LARGE_INTEGER new_pos, off_pos; off_pos.QuadPart = offset; BOOL res; + int whence; + gfh = guest_file_handle_find(handle, errp); if (!gfh) { return NULL; } + /* We stupidly exposed 'whence':'int' in our qapi */ + switch (whence_code) { + case QGA_SEEK_SET: + whence = SEEK_SET; + break; + case QGA_SEEK_CUR: + whence = SEEK_CUR; + break; + case QGA_SEEK_END: + whence = SEEK_END; + break; + default: + error_setg(errp, "invalid whence code %"PRId64, whence_code); + return NULL; + } + fh = gfh->fh; res = SetFilePointerEx(fh, off_pos, &new_pos, whence); if (!res) { diff --git a/qga/guest-agent-core.h b/qga/guest-agent-core.h index e92c6abafb..238dc6b08d 100644 --- a/qga/guest-agent-core.h +++ b/qga/guest-agent-core.h @@ -15,6 +15,13 @@ #define QGA_READ_COUNT_DEFAULT 4096 +/* Mapping of whence codes used by guest-file-seek. */ +enum { + QGA_SEEK_SET = 0, + QGA_SEEK_CUR = 1, + QGA_SEEK_END = 2, +}; + typedef struct GAState GAState; typedef struct GACommandState GACommandState; extern GAState *ga_state; diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 78362e071d..01c9ee48d8 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -318,13 +318,13 @@ # # Seek to a position in the file, as with fseek(), and return the # current file position afterward. Also encapsulates ftell()'s -# functionality, just Set offset=0, whence=SEEK_CUR. +# functionality, with offset=0 and whence=1. # # @handle: filehandle returned by guest-file-open # # @offset: bytes to skip over in the file stream # -# @whence: SEEK_SET, SEEK_CUR, or SEEK_END, as with fseek() +# @whence: 0 for SEEK_SET, 1 for SEEK_CUR, or 2 for SEEK_END # # Returns: @GuestFileSeek on success. # diff --git a/tests/test-qga.c b/tests/test-qga.c index 3b99d9d5ca..e6a84d17f0 100644 --- a/tests/test-qga.c +++ b/tests/test-qga.c @@ -13,6 +13,7 @@ #include "libqtest.h" #include "config-host.h" +#include "qga/guest-agent-core.h" typedef struct { char *test_dir; @@ -457,7 +458,7 @@ static void test_qga_file_ops(gconstpointer fix) cmd = g_strdup_printf("{'execute': 'guest-file-seek'," " 'arguments': { 'handle': %" PRId64 ", " " 'offset': %d, 'whence': %d } }", - id, 6, SEEK_SET); + id, 6, QGA_SEEK_SET); ret = qmp_fd(fixture->fd, cmd); qmp_assert_no_error(ret); val = qdict_get_qdict(ret, "return"); @@ -550,7 +551,7 @@ static void test_qga_file_write_read(gconstpointer fix) cmd = g_strdup_printf("{'execute': 'guest-file-seek'," " 'arguments': { 'handle': %" PRId64 ", " " 'offset': %d, 'whence': %d } }", - id, 0, SEEK_SET); + id, 0, QGA_SEEK_SET); ret = qmp_fd(fixture->fd, cmd); qmp_assert_no_error(ret); val = qdict_get_qdict(ret, "return"); |