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-rw-r--r--popt/poptconfig.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/popt/poptconfig.c b/popt/poptconfig.c
new file mode 100644
index 0000000000..837828ccf9
--- /dev/null
+++ b/popt/poptconfig.c
@@ -0,0 +1,190 @@
+/** \ingroup popt
+ * \file popt/poptconfig.c
+ */
+
+/* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
+ file accompanying popt source distributions, available from
+ ftp://ftp.rpm.org/pub/rpm/dist. */
+
+#include "system.h"
+#include "poptint.h"
+
+/*@-compmempass@*/ /* FIX: item->option.longName kept, not dependent. */
+static void configLine(poptContext con, char * line)
+ /*@modifies con @*/
+{
+ /*@-type@*/
+ int nameLength = strlen(con->appName);
+ /*@=type@*/
+ const char * entryType;
+ const char * opt;
+ poptItem item = (poptItem)alloca(sizeof(*item));
+ int i, j;
+
+/*@-boundswrite@*/
+ memset(item, 0, sizeof(*item));
+
+ /*@-type@*/
+ if (strncmp(line, con->appName, nameLength)) return;
+ /*@=type@*/
+
+ line += nameLength;
+ if (*line == '\0' || !isspace(*line)) return;
+
+ while (*line != '\0' && isspace(*line)) line++;
+ entryType = line;
+ while (*line == '\0' || !isspace(*line)) line++;
+ *line++ = '\0';
+
+ while (*line != '\0' && isspace(*line)) line++;
+ if (*line == '\0') return;
+ opt = line;
+ while (*line == '\0' || !isspace(*line)) line++;
+ *line++ = '\0';
+
+ while (*line != '\0' && isspace(*line)) line++;
+ if (*line == '\0') return;
+
+ /*@-temptrans@*/ /* FIX: line alias is saved */
+ if (opt[0] == '-' && opt[1] == '-')
+ item->option.longName = opt + 2;
+ else if (opt[0] == '-' && opt[2] == '\0')
+ item->option.shortName = opt[1];
+ /*@=temptrans@*/
+
+ if (poptParseArgvString(line, &item->argc, &item->argv)) return;
+
+ /*@-modobserver@*/
+ item->option.argInfo = POPT_ARGFLAG_DOC_HIDDEN;
+ for (i = 0, j = 0; i < item->argc; i++, j++) {
+ const char * f;
+ if (!strncmp(item->argv[i], "--POPTdesc=", sizeof("--POPTdesc=")-1)) {
+ f = item->argv[i] + sizeof("--POPTdesc=");
+ if (f[0] == '$' && f[1] == '"') f++;
+ item->option.descrip = f;
+ item->option.argInfo &= ~POPT_ARGFLAG_DOC_HIDDEN;
+ j--;
+ } else
+ if (!strncmp(item->argv[i], "--POPTargs=", sizeof("--POPTargs=")-1)) {
+ f = item->argv[i] + sizeof("--POPTargs=");
+ if (f[0] == '$' && f[1] == '"') f++;
+ item->option.argDescrip = f;
+ item->option.argInfo &= ~POPT_ARGFLAG_DOC_HIDDEN;
+ item->option.argInfo |= POPT_ARG_STRING;
+ j--;
+ } else
+ if (j != i)
+ item->argv[j] = item->argv[i];
+ }
+ if (j != i) {
+ item->argv[j] = NULL;
+ item->argc = j;
+ }
+ /*@=modobserver@*/
+/*@=boundswrite@*/
+
+ /*@-nullstate@*/ /* FIX: item->argv[] may be NULL */
+ if (!strcmp(entryType, "alias"))
+ (void) poptAddItem(con, item, 0);
+ else if (!strcmp(entryType, "exec"))
+ (void) poptAddItem(con, item, 1);
+ /*@=nullstate@*/
+}
+/*@=compmempass@*/
+
+int poptReadConfigFile(poptContext con, const char * fn)
+{
+ const char * file, * chptr, * end;
+ char * buf;
+/*@dependent@*/ char * dst;
+ int fd, rc;
+ off_t fileLength;
+
+ fd = open(fn, O_RDONLY);
+ if (fd < 0)
+ return (errno == ENOENT ? 0 : POPT_ERROR_ERRNO);
+
+ fileLength = lseek(fd, 0, SEEK_END);
+ if (fileLength == -1 || lseek(fd, 0, 0) == -1) {
+ rc = errno;
+ (void) close(fd);
+ /*@-mods@*/
+ errno = rc;
+ /*@=mods@*/
+ return POPT_ERROR_ERRNO;
+ }
+
+ file = (const char *)alloca(fileLength + 1);
+ if (read(fd, (char *)file, fileLength) != fileLength) {
+ rc = errno;
+ (void) close(fd);
+ /*@-mods@*/
+ errno = rc;
+ /*@=mods@*/
+ return POPT_ERROR_ERRNO;
+ }
+ if (close(fd) == -1)
+ return POPT_ERROR_ERRNO;
+
+/*@-boundswrite@*/
+ dst = buf = (char *)alloca(fileLength + 1);
+
+ chptr = file;
+ end = (file + fileLength);
+ /*@-infloops@*/ /* LCL: can't detect chptr++ */
+ while (chptr < end) {
+ switch (*chptr) {
+ case '\n':
+ *dst = '\0';
+ dst = buf;
+ while (*dst && isspace(*dst)) dst++;
+ if (*dst && *dst != '#')
+ configLine(con, dst);
+ chptr++;
+ /*@switchbreak@*/ break;
+ case '\\':
+ *dst++ = *chptr++;
+ if (chptr < end) {
+ if (*chptr == '\n')
+ dst--, chptr++;
+ /* \ at the end of a line does not insert a \n */
+ else
+ *dst++ = *chptr++;
+ }
+ /*@switchbreak@*/ break;
+ default:
+ *dst++ = *chptr++;
+ /*@switchbreak@*/ break;
+ }
+ }
+ /*@=infloops@*/
+/*@=boundswrite@*/
+
+ return 0;
+}
+
+int poptReadDefaultConfig(poptContext con, /*@unused@*/ int useEnv)
+{
+ char * fn, * home;
+ int rc;
+
+ /*@-type@*/
+ if (!con->appName) return 0;
+ /*@=type@*/
+
+ rc = poptReadConfigFile(con, "/etc/popt");
+ if (rc) return rc;
+#if defined(HAVE_GETUID) && defined(HAVE_GETEUID)
+ if (getuid() != geteuid()) return 0;
+#endif
+
+ if ((home = getenv("HOME"))) {
+ fn = (char *)alloca(strlen(home) + 20);
+ strcpy(fn, home);
+ strcat(fn, "/.popt");
+ rc = poptReadConfigFile(con, fn);
+ if (rc) return rc;
+ }
+
+ return 0;
+}