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abuild-tar: fix warnings from scan-build

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ref: https://gitlab.alpinelinux.org/alpine/abuild/-/issues/10102
This commit is contained in:
Natanael Copa 2023-10-17 18:30:30 +02:00
parent fcdfd871af
commit c63cae3b15
1 changed files with 4 additions and 1 deletions
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5
abuild-tar.c
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@ -221,7 +221,8 @@ static int buf_padto(struct buf *b, size_t alignment)
newsize = (oldsize + alignment - 1) & -alignment;
if (buf_resize(b, newsize)) return -ENOMEM;
b->size = newsize;
memset(b->ptr + oldsize, 0, newsize - oldsize);
if (b->ptr)
memset(b->ptr + oldsize, 0, newsize - oldsize);
return 0;
}
@ -260,6 +261,8 @@ static int buf_add_ext_header_hexdump(struct buf *b, const char *hdr, const unsi
for (i = len; i > 9; i /= 10) len++;
if (buf_resize(b, b->size + len)) return -ENOMEM;
if (b->ptr == NULL)
return 0;
b->size += snprintf(&b->ptr[b->size], len, "%u %s=", len, hdr);
for (i = 0; i < valuelen; i++)
b->size += snprintf(&b->ptr[b->size], 3, "%02x", (int)value[i]);