Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/coreutils/src/gnulib/lib/argv-iter.c |
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1 | /* Iterate over arguments from argv or --files0-from=FILE | - | ||||||
2 | Copyright (C) 2008-2018 Free Software Foundation, Inc. | - | ||||||
3 | - | |||||||
4 | This program is free software: you can redistribute it and/or modify | - | ||||||
5 | it under the terms of the GNU General Public License as published by | - | ||||||
6 | the Free Software Foundation, either version 3 of the License, or | - | ||||||
7 | (at your option) any later version. | - | ||||||
8 | - | |||||||
9 | This program is distributed in the hope that it will be useful, | - | ||||||
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | - | ||||||
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | - | ||||||
12 | GNU General Public License for more details. | - | ||||||
13 | - | |||||||
14 | You should have received a copy of the GNU General Public License | - | ||||||
15 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ | - | ||||||
16 | - | |||||||
17 | /* Written by Jim Meyering. */ | - | ||||||
18 | - | |||||||
19 | #include <config.h> | - | ||||||
20 | #include "argv-iter.h" | - | ||||||
21 | - | |||||||
22 | #include <stdlib.h> | - | ||||||
23 | #include <string.h> | - | ||||||
24 | - | |||||||
25 | struct argv_iterator | - | ||||||
26 | { | - | ||||||
27 | /* Test FP to determine whether in read-mode or argv-mode. */ | - | ||||||
28 | /* file-mode: fp records position */ | - | ||||||
29 | FILE *fp; | - | ||||||
30 | size_t item_idx; | - | ||||||
31 | char *tok; | - | ||||||
32 | size_t buf_len; | - | ||||||
33 | - | |||||||
34 | /* argv-mode: record just argv and current pointer */ | - | ||||||
35 | char **arg_list; | - | ||||||
36 | char **p; | - | ||||||
37 | }; | - | ||||||
38 | - | |||||||
39 | struct argv_iterator * | - | ||||||
40 | argv_iter_init_argv (char **argv) | - | ||||||
41 | { | - | ||||||
42 | struct argv_iterator *ai = malloc (sizeof *ai); | - | ||||||
43 | if (!ai)
| 0-2145 | ||||||
44 | return NULL; never executed: return ((void *)0) ; | 0 | ||||||
45 | ai->fp = NULL; | - | ||||||
46 | ai->arg_list = argv; | - | ||||||
47 | ai->p = argv; | - | ||||||
48 | return ai; executed 2145 times by 2 tests: return ai; Executed by:
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49 | } | - | ||||||
50 | - | |||||||
51 | /* Initialize to read from the stream, FP. | - | ||||||
52 | The input is expected to contain a list of NUL-delimited tokens. */ | - | ||||||
53 | struct argv_iterator * | - | ||||||
54 | argv_iter_init_stream (FILE *fp) | - | ||||||
55 | { | - | ||||||
56 | struct argv_iterator *ai = malloc (sizeof *ai); | - | ||||||
57 | if (!ai)
| 0-15 | ||||||
58 | return NULL; never executed: return ((void *)0) ; | 0 | ||||||
59 | ai->fp = fp; | - | ||||||
60 | ai->tok = NULL; | - | ||||||
61 | ai->buf_len = 0; | - | ||||||
62 | - | |||||||
63 | ai->item_idx = 0; | - | ||||||
64 | ai->arg_list = NULL; | - | ||||||
65 | return ai; executed 15 times by 2 tests: return ai; Executed by:
| 15 | ||||||
66 | } | - | ||||||
67 | - | |||||||
68 | char * | - | ||||||
69 | argv_iter (struct argv_iterator *ai, enum argv_iter_err *err) | - | ||||||
70 | { | - | ||||||
71 | if (ai->fp)
| 30-9737 | ||||||
72 | { | - | ||||||
73 | ssize_t len = getdelim (&ai->tok, &ai->buf_len, '\0', ai->fp); | - | ||||||
74 | if (len < 0)
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75 | { | - | ||||||
76 | *err = feof (ai->fp) ? AI_ERR_EOF : AI_ERR_READ;
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77 | return NULL; executed 15 times by 2 tests: return ((void *)0) ; Executed by:
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78 | } | - | ||||||
79 | - | |||||||
80 | *err = AI_ERR_OK; | - | ||||||
81 | ai->item_idx++; | - | ||||||
82 | return ai->tok; executed 15 times by 2 tests: return ai->tok; Executed by:
| 15 | ||||||
83 | } | - | ||||||
84 | else | - | ||||||
85 | { | - | ||||||
86 | if (*(ai->p) == NULL)
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87 | { | - | ||||||
88 | *err = AI_ERR_EOF; | - | ||||||
89 | return NULL; executed 2145 times by 2 tests: return ((void *)0) ; Executed by:
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90 | } | - | ||||||
91 | else | - | ||||||
92 | { | - | ||||||
93 | *err = AI_ERR_OK; | - | ||||||
94 | return *(ai->p++); executed 7592 times by 2 tests: return *(ai->p++); Executed by:
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95 | } | - | ||||||
96 | } | - | ||||||
97 | } | - | ||||||
98 | - | |||||||
99 | size_t | - | ||||||
100 | argv_iter_n_args (struct argv_iterator const *ai) | - | ||||||
101 | { | - | ||||||
102 | return ai->fp ? ai->item_idx : ai->p - ai->arg_list; executed 3751 times by 2 tests: return ai->fp ? ai->item_idx : ai->p - ai->arg_list; Executed by:
| 3751 | ||||||
103 | } | - | ||||||
104 | - | |||||||
105 | void | - | ||||||
106 | argv_iter_free (struct argv_iterator *ai) | - | ||||||
107 | { | - | ||||||
108 | if (ai->fp)
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109 | free (ai->tok); executed 15 times by 2 tests: free (ai->tok); Executed by:
| 15 | ||||||
110 | free (ai); | - | ||||||
111 | } executed 2160 times by 2 tests: end of block Executed by:
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