1 // SPDX-License-Identifier: GPL-2.0-only
2 /// Use kstrdup rather than duplicating its implementation
5 // Copyright: (C) 2010-2012 Nicolas Palix.
6 // Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
7 // Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
8 // URL: http://coccinelle.lip6.fr/
10 // Options: --no-includes --include-headers
19 expression flag,E1,E2;
23 - to = kmalloc(strlen(from) + 1,flag);
24 + to = kstrdup(from, flag);
25 ... when != \(from = E1 \| to = E1 \)
26 if (to==NULL || ...) S
27 ... when != \(from = E2 \| to = E2 \)
32 expression flag,E1,E2,E3;
36 - x = strlen(from) + 1;
37 ... when != \( x = E1 \| from = E1 \)
38 - to = \(kmalloc\|kzalloc\)(x,flag);
39 + to = kstrdup(from, flag);
40 ... when != \(x = E2 \| from = E2 \| to = E2 \)
41 if (to==NULL || ...) S
42 ... when != \(x = E3 \| from = E3 \| to = E3 \)
43 - memcpy(to, from, x);
45 // ---------------------------------------------------------------------
47 @r1 depends on !patch exists@
49 expression flag,E1,E2;
54 * to = kmalloc@p1(strlen(from) + 1,flag);
55 ... when != \(from = E1 \| to = E1 \)
56 if (to==NULL || ...) S
57 ... when != \(from = E2 \| to = E2 \)
58 * strcpy@p2(to, from);
60 @r2 depends on !patch exists@
62 expression flag,E1,E2,E3;
67 * x = strlen(from) + 1;
68 ... when != \( x = E1 \| from = E1 \)
69 * to = \(kmalloc@p1\|kzalloc@p2\)(x,flag);
70 ... when != \(x = E2 \| from = E2 \| to = E2 \)
71 if (to==NULL || ...) S
72 ... when != \(x = E3 \| from = E3 \| to = E3 \)
73 * memcpy@p2(to, from, x);
75 @script:python depends on org@
80 cocci.print_main("WARNING opportunity for kstrdup",p1)
81 cocci.print_secs("strcpy",p2)
83 @script:python depends on org@
88 cocci.print_main("WARNING opportunity for kstrdup",p1)
89 cocci.print_secs("memcpy",p2)
91 @script:python depends on report@
96 msg = "WARNING opportunity for kstrdup (strcpy on line %s)" % (p2[0].line)
97 coccilib.report.print_report(p1[0], msg)
99 @script:python depends on report@
104 msg = "WARNING opportunity for kstrdup (memcpy on line %s)" % (p2[0].line)
105 coccilib.report.print_report(p1[0], msg)