Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#include "cache.h"
2#include "util.h"
3#include "config.h"
4
5static const char *alias_key;
6static char *alias_val;
7
8static int alias_lookup_cb(const char *k, const char *v,
9 void *cb __maybe_unused)
10{
11 if (!prefixcmp(k, "alias.") && !strcmp(k+6, alias_key)) {
12 if (!v)
13 return config_error_nonbool(k);
14 alias_val = strdup(v);
15 return 0;
16 }
17 return 0;
18}
19
20char *alias_lookup(const char *alias)
21{
22 alias_key = alias;
23 alias_val = NULL;
24 perf_config(alias_lookup_cb, NULL);
25 return alias_val;
26}
27
28int split_cmdline(char *cmdline, const char ***argv)
29{
30 int src, dst, count = 0, size = 16;
31 char quoted = 0;
32
33 *argv = malloc(sizeof(char*) * size);
34
35 /* split alias_string */
36 (*argv)[count++] = cmdline;
37 for (src = dst = 0; cmdline[src];) {
38 char c = cmdline[src];
39 if (!quoted && isspace(c)) {
40 cmdline[dst++] = 0;
41 while (cmdline[++src]
42 && isspace(cmdline[src]))
43 ; /* skip */
44 if (count >= size) {
45 size += 16;
46 *argv = realloc(*argv, sizeof(char*) * size);
47 }
48 (*argv)[count++] = cmdline + dst;
49 } else if (!quoted && (c == '\'' || c == '"')) {
50 quoted = c;
51 src++;
52 } else if (c == quoted) {
53 quoted = 0;
54 src++;
55 } else {
56 if (c == '\\' && quoted != '\'') {
57 src++;
58 c = cmdline[src];
59 if (!c) {
60 zfree(argv);
61 return error("cmdline ends with \\");
62 }
63 }
64 cmdline[dst++] = c;
65 src++;
66 }
67 }
68
69 cmdline[dst] = 0;
70
71 if (quoted) {
72 zfree(argv);
73 return error("unclosed quote");
74 }
75
76 return count;
77}
78