diff options
Diffstat (limited to 'compat/pread.c')
-rw-r--r-- | compat/pread.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/compat/pread.c b/compat/pread.c new file mode 100644 index 0000000000..978cac4ec9 --- /dev/null +++ b/compat/pread.c @@ -0,0 +1,18 @@ +#include "../git-compat-util.h" + +ssize_t git_pread(int fd, void *buf, size_t count, off_t offset) +{ + off_t current_offset; + ssize_t rc; + + current_offset = lseek(fd, 0, SEEK_CUR); + + if (lseek(fd, offset, SEEK_SET) < 0) + return -1; + + rc = read_in_full(fd, buf, count); + + if (current_offset != lseek(fd, current_offset, SEEK_SET)) + return -1; + return rc; +} |