mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-23 04:46:55 +03:00
152 lines
3.4 KiB
C
152 lines
3.4 KiB
C
/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
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file accompanying popt source distributions, available from
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ftp://ftp.redhat.com/pub/code/popt */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "poptalloca.h"
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "popt.h"
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#include "poptint.h"
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static void configLine(poptContext con, char * line) {
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int nameLength = strlen(con->appName);
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char * opt;
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struct poptAlias alias;
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char * entryType;
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char * longName = NULL;
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char shortName = '\0';
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if (strncmp(line, con->appName, nameLength)) return;
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line += nameLength;
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if (!*line || !isspace((unsigned char) *line)) return;
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while (*line && isspace((unsigned char) *line)) line++;
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entryType = line;
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while (!*line || !isspace((unsigned char) *line)) line++;
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*line++ = '\0';
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while (*line && isspace((unsigned char) *line)) line++;
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if (!*line) return;
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opt = line;
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while (!*line || !isspace((unsigned char) *line)) line++;
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*line++ = '\0';
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while (*line && isspace((unsigned char) *line)) line++;
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if (!*line) return;
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if (opt[0] == '-' && opt[1] == '-')
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longName = opt + 2;
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else if (opt[0] == '-' && !opt[2])
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shortName = opt[1];
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if (!strcmp(entryType, "alias")) {
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if (poptParseArgvString(line, &alias.argc, &alias.argv)) return;
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alias.longName = longName, alias.shortName = shortName;
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poptAddAlias(con, alias, 0);
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} else if (!strcmp(entryType, "exec")) {
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con->execs = realloc(con->execs,
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sizeof(*con->execs) * (con->numExecs + 1));
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if (longName)
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con->execs[con->numExecs].longName = strdup(longName);
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else
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con->execs[con->numExecs].longName = NULL;
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con->execs[con->numExecs].shortName = shortName;
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con->execs[con->numExecs].script = strdup(line);
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con->numExecs++;
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}
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}
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int poptReadConfigFile(poptContext con, const char * fn) {
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char * file, * chptr, * end;
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char * buf, * dst;
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int fd, rc;
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int fileLength;
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fd = open(fn, O_RDONLY);
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if (fd < 0) {
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if (errno == ENOENT)
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return 0;
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else
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return POPT_ERROR_ERRNO;
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}
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fileLength = lseek(fd, 0, SEEK_END);
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lseek(fd, 0, 0);
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file = alloca(fileLength + 1);
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if (read(fd, file, fileLength) != fileLength) {
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rc = errno;
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close(fd);
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errno = rc;
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return POPT_ERROR_ERRNO;
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}
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close(fd);
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dst = buf = alloca(fileLength + 1);
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chptr = file;
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end = (file + fileLength);
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while (chptr < end) {
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switch (*chptr) {
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case '\n':
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*dst = '\0';
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dst = buf;
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while (*dst && isspace((unsigned char) *dst)) dst++;
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if (*dst && *dst != '#') {
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configLine(con, dst);
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}
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chptr++;
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break;
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case '\\':
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*dst++ = *chptr++;
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if (chptr < end) {
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if (*chptr == '\n')
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dst--, chptr++;
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/* \ at the end of a line does not insert a \n */
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else
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*dst++ = *chptr++;
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}
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break;
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default:
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*dst++ = *chptr++;
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}
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}
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return 0;
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}
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int poptReadDefaultConfig(poptContext con, int useEnv) {
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char *fn;
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const char* home;
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int rc;
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(void) useEnv;
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if (!con->appName) return 0;
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rc = poptReadConfigFile(con, "/etc/popt");
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if (rc) return rc;
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if (getuid() != geteuid()) return 0;
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if ((home = getenv("HOME"))) {
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fn = alloca(strlen(home) + 20);
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strcpy(fn, home);
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strcat(fn, "/.popt");
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rc = poptReadConfigFile(con, fn);
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if (rc) return rc;
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}
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return 0;
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}
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