diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2013-04-10 14:29:07 -0400 |
|---|---|---|
| committer | Jon Loeliger <jdl@jdl.com> | 2013-04-21 14:23:32 -0500 |
| commit | cc2c178727cdeca4eb9756637c2e09e50e0856e7 (patch) | |
| tree | e5d048e177cd803b9416307fc4ab1993f2c06d12 /util.c | |
| parent | f8cb5dd94903a5cfa1609695328b8f1d5557367f (diff) | |
| download | dtc-cc2c178727cdeca4eb9756637c2e09e50e0856e7.tar.gz | |
utilfdt_read: pass back up the length of data read
For a follow up commit, we want to be able to scan the buffer that was
returned to us. In order to do that safely, we need to know how big
the buffer actually is, so pass that back if requested.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'util.c')
| -rw-r--r-- | util.c | 8 |
1 files changed, 5 insertions, 3 deletions
@@ -197,7 +197,7 @@ char get_escape_char(const char *s, int *i) return val; } -int utilfdt_read_err(const char *filename, char **buffp) +int utilfdt_read_err(const char *filename, char **buffp, off_t *len) { int fd = 0; /* assume stdin */ char *buf = NULL; @@ -238,13 +238,15 @@ int utilfdt_read_err(const char *filename, char **buffp) free(buf); else *buffp = buf; + if (len) + *len = bufsize; return ret; } -char *utilfdt_read(const char *filename) +char *utilfdt_read(const char *filename, off_t *len) { char *buff; - int ret = utilfdt_read_err(filename, &buff); + int ret = utilfdt_read_err(filename, &buff, len); if (ret) { fprintf(stderr, "Couldn't open blob from '%s': %s\n", filename, |