https://github.com/git/git
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Tip revision: 3c3e0b3c41f4c975828cf51d661614e45bf80dc0 authored by Junio C Hamano on 26 May 2011, 16:45:29 UTC
Git 1.7.5.3
Tip revision: 3c3e0b3
pread.c
#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;
}
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