Commit | Line | Data |
---|---|---|
b2fa28e3 FT |
1 | #include <stdlib.h> |
2 | #include <stdio.h> | |
3 | #include <unistd.h> | |
4 | #include <string.h> | |
5 | #include <libgen.h> | |
6 | #include <errno.h> | |
7 | #include <sys/stat.h> | |
8 | ||
f2bcbba7 FT |
9 | static int ensuredir(char *base, char *dir) |
10 | { | |
11 | if(access(dir, X_OK)) { | |
12 | if((mkdir(base, 0777) && (errno != EEXIST)) || mkdir(dir, 0777)) | |
13 | return(1); | |
14 | } | |
15 | return(0); | |
16 | } | |
17 | ||
b2fa28e3 FT |
18 | static void usage(FILE *out) |
19 | { | |
20 | fprintf(out, "usage: nextep [-h] [-f FILE] [-s SET-VALUE] [DIR]\n"); | |
21 | } | |
22 | ||
23 | int main(int argc, char **argv) | |
24 | { | |
25 | int c; | |
26 | char buf[1024], dbuf[1024], *p; | |
27 | char *file, *value, *dir; | |
28 | char base[1024], fpath[1024]; | |
29 | FILE *fp; | |
30 | ||
31 | file = "nextep"; | |
32 | value = NULL; | |
33 | while((c = getopt(argc, argv, "hf:s:")) >= 0) { | |
34 | switch(c) { | |
35 | case 'f': | |
36 | file = optarg; | |
37 | break; | |
38 | case 's': | |
39 | value = optarg; | |
40 | break; | |
41 | case 'h': | |
42 | usage(stdout); | |
43 | exit(0); | |
44 | default: | |
45 | usage(stderr); | |
46 | exit(1); | |
47 | } | |
48 | } | |
49 | if(optind < argc) { | |
50 | if(chdir(argv[optind])) { | |
51 | fprintf(stderr, "nextep: %s: %s\n", argv[optind], strerror(errno)); | |
52 | exit(1); | |
53 | } | |
54 | optind++; | |
55 | } | |
56 | if(!getcwd(dbuf, sizeof(dbuf))) { | |
57 | fprintf(stderr, "nextep: getcwd: %s\n", strerror(errno)); | |
58 | exit(1); | |
59 | } | |
60 | dir = basename(dbuf); | |
61 | if((p = getenv("HOME")) == NULL) { | |
62 | fprintf(stderr, "nextep: $HOME is not set\n"); | |
63 | exit(1); | |
64 | } | |
65 | snprintf(buf, sizeof(buf), "%s/.nextep", p); | |
66 | snprintf(base, sizeof(base), "%s/%s", buf, dir); | |
b2fa28e3 FT |
67 | snprintf(fpath, sizeof(fpath), "%s/%s", base, file); |
68 | if(value == NULL) { | |
69 | if((fp = fopen(fpath, "r")) == NULL) { | |
70 | if(errno != ENOENT) { | |
71 | fprintf(stderr, "nextep: %s: %s\n", fpath, strerror(errno)); | |
72 | exit(1); | |
73 | } | |
74 | } else { | |
75 | while(fgets(buf, sizeof(buf), fp) != NULL) | |
76 | printf(buf); | |
77 | fclose(fp); | |
78 | } | |
79 | } else if(!*value) { | |
80 | if(unlink(fpath) && (errno != ENOENT)) { | |
81 | fprintf(stderr, "nextep: %s: %s\n", fpath, strerror(errno)); | |
82 | exit(1); | |
83 | } | |
84 | } else { | |
f2bcbba7 FT |
85 | if(ensuredir(buf, base)) { |
86 | fprintf(stderr, "nextep: %s: %s\n", base, strerror(errno)); | |
87 | exit(1); | |
88 | } | |
b2fa28e3 FT |
89 | if((fp = fopen(fpath, "w")) == NULL) { |
90 | fprintf(stderr, "nextep: %s: %s\n", fpath, strerror(errno)); | |
91 | exit(1); | |
92 | } | |
93 | fprintf(fp, "%s\n", value); | |
94 | fclose(fp); | |
95 | } | |
96 | return(0); | |
97 | } | |
98 | ||
99 | /* | |
100 | * Local Variables: | |
101 | * compile-command: "gcc -Wall -g -o nextep nextep.c" | |
102 | * End: | |
103 | */ |