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use xmemdupz() to allocate copies of strings given by start and length

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Use xmemdupz() to allocate the memory, copy the data and make sure to
NUL-terminate the result, all in one step.  The resulting code is
shorter, doesn't contain the constants 1 and '\0', and avoids
duplicating function parameters.

For blame, the last copied byte (o->file.ptr[o->file.size]) is always
set to NUL by fake_working_tree_commit() or read_sha1_file(), so no
information is lost by the conversion to using xmemdupz().

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe
2014-07-19 17:35:34 +02:00
committed by Junio C Hamano
parent 51a60f5bfb
commit 5c0b13f85a
6 changed files with 6 additions and 19 deletions
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4
path.c
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@ -249,9 +249,7 @@ int validate_headref(const char *path)
static struct passwd *getpw_str(const char *username, size_t len)
{
struct passwd *pw;
char *username_z = xmalloc(len + 1);
memcpy(username_z, username, len);
username_z[len] = '\0';
char *username_z = xmemdupz(username, len);
pw = getpwnam(username_z);
free(username_z);
return pw;