diff options
Diffstat (limited to 'libreport/src/lib/read_write.c')
-rw-r--r-- | libreport/src/lib/read_write.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/libreport/src/lib/read_write.c b/libreport/src/lib/read_write.c deleted file mode 100644 index a3bbb58f..00000000 --- a/libreport/src/lib/read_write.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - * Utility routines. - * - * Licensed under GPLv2 or later, see file COPYING in this tarball for details. - */ -#include "libreport.h" - -/* Die with an error message if we can't read the entire buffer. */ -void xread(int fd, void *buf, size_t count) -{ - if (count) - { - ssize_t size = full_read(fd, buf, count); - if ((size_t)size != count) - error_msg_and_die("short read"); - } -} - -ssize_t safe_read(int fd, void *buf, size_t count) -{ - ssize_t n; - - do { - n = read(fd, buf, count); - } while (n < 0 && errno == EINTR); - - return n; -} - -ssize_t safe_write(int fd, const void *buf, size_t count) -{ - ssize_t n; - - do { - n = write(fd, buf, count); - } while (n < 0 && errno == EINTR); - - return n; -} - -ssize_t full_read(int fd, void *buf, size_t len) -{ - ssize_t cc; - ssize_t total; - - total = 0; - - while (len) - { - cc = safe_read(fd, buf, len); - - if (cc < 0) - { - if (total) - { - /* we already have some! */ - /* user can do another read to know the error code */ - return total; - } - return cc; /* read() returns -1 on failure. */ - } - if (cc == 0) - break; - buf = ((char *)buf) + cc; - total += cc; - len -= cc; - } - - return total; -} - -ssize_t full_write(int fd, const void *buf, size_t len) -{ - ssize_t cc; - ssize_t total; - - total = 0; - - while (len) - { - cc = safe_write(fd, buf, len); - - if (cc < 0) - { - if (total) - { - /* we already wrote some! */ - /* user can do another write to know the error code */ - return total; - } - return cc; /* write() returns -1 on failure. */ - } - - total += cc; - buf = ((const char *)buf) + cc; - len -= cc; - } - - return total; -} - -ssize_t full_write_str(int fd, const char *buf) -{ - return full_write(fd, buf, strlen(buf)); -} |