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Diffstat (limited to 'pkgtools/pkgfind/files/pkgfind.c')
| -rw-r--r-- | pkgtools/pkgfind/files/pkgfind.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/pkgtools/pkgfind/files/pkgfind.c b/pkgtools/pkgfind/files/pkgfind.c new file mode 100644 index 00000000000..cb68e6f4638 --- /dev/null +++ b/pkgtools/pkgfind/files/pkgfind.c @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2004 Peter Postma <peter@pointless.nl> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/stat.h> + +#include <ctype.h> +#include <err.h> +#include <dirent.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#define PKGSRCDIR "/usr/pkgsrc" + +static const char * const skip[] = { + ".", "..", "CVS", "bootstrap", "doc", "distfiles", + "licenses", "mk", "packages", NULL +}; + +static void pkgfind(const char *, const char *); +static void showpkg(const char *, const char *, const char *); +static int getcomment(const char *, char **); +static int checkskip(const struct dirent *); +static int subcasestr(const char *, const char *); +static void usage(void); + +int +main(int argc, char *argv[]) +{ + const char *path; + + if (argc < 2) + usage(); + + if ((path = getenv("PKGSRCDIR")) == NULL) + path = PKGSRCDIR; + + for (++argv; *argv != NULL; ++argv) + pkgfind(path, *argv); + + return 0; +} + +static void +pkgfind(const char *path, const char *pkg) +{ + struct dirent **cat, **list; + int ncat, nlist, i, j; + char tmp[PATH_MAX]; + struct stat sb; + + if ((ncat = scandir(path, &cat, checkskip, alphasort)) < 0) + err(EXIT_FAILURE, "%s", path); + + for (i = 0; i < ncat; i++) { + if (snprintf(tmp, sizeof(tmp), "%s/%s", path, cat[i]->d_name) + >= sizeof(tmp)) { + warnx("filename too long"); + continue; + } + if (stat(tmp, &sb) < 0 || !S_ISDIR(sb.st_mode)) + continue; + if ((nlist = scandir(tmp, &list, checkskip, alphasort)) < 0) { + warn("%s", tmp); + continue; + } + for (j = 0; j < nlist; j++) { + if (snprintf(tmp, sizeof(tmp), "%s/%s/%s", path, + cat[i]->d_name, list[j]->d_name) >= sizeof(tmp)) { + warnx("filename too long"); + continue; + } + if (stat(tmp, &sb) < 0 || !S_ISDIR(sb.st_mode)) + continue; + if (subcasestr(list[j]->d_name, pkg)) + showpkg(path, cat[i]->d_name, list[j]->d_name); + free(list[j]); + } + free(cat[i]); + } + free(list); + free(cat); +} + +static void +showpkg(const char *path, const char *cat, const char *pkg) +{ + char *mk, *comment; + + (void)asprintf(&mk, "%s/%s/%s/Makefile", path, cat, pkg); + if (mk == NULL) + err(EXIT_FAILURE, "asprintf"); + + comment = NULL; + if (getcomment(mk, &comment) == 0) { + free(mk); + (void)asprintf(&mk, "%s/%s/%s/Makefile.common", path, cat, pkg); + if (mk == NULL) + err(EXIT_FAILURE, "asprintf"); + (void)getcomment(mk, &comment); + } + free(mk); + + if (comment != NULL) + (void)printf("%s/%s: %s\n", cat, pkg, comment); + else + (void)printf("%s/%s: no description\n", cat, pkg); +} + +static int +getcomment(const char *file, char **comment) +{ + char line[120], *p; + size_t len; + FILE *fp; + + if ((fp = fopen(file, "r")) == NULL) + return 0; + while (fgets(line, sizeof(line), fp) != NULL) { + if ((p = strchr(line, '\n')) == NULL) + continue; + *p = '\0'; + if (strncmp(line, "COMMENT", 7)) + continue; + p = line + 7; + if (*++p == '=') + p++; + while (*p != '\0' && isspace((unsigned char)*p)) + p++; + *comment = strdup(p); + (void)fclose(fp); + return 1; + } + (void)fclose(fp); + return 0; +} + +static int +checkskip(const struct dirent *dp) +{ + const char * const *p; + + for (p = skip; *p != NULL; p++) + if (strcmp(dp->d_name, *p) == 0) + return 0; + return 1; +} + +static int +subcasestr(const char *s, const char *find) +{ + size_t len, n; + + len = strlen(find); + n = strlen(s) - len; + + do { + if (strncasecmp(s, find, len) == 0) + return 1; + } while (*++s != '\0' && n-- > 0); + + return 0; +} + +static void +usage(void) +{ + extern char *__progname; + + (void)fprintf(stderr, "Usage: %s keyword [...]\n", __progname); + exit(EXIT_FAILURE); +} |