diff options
Diffstat (limited to 'lib/popt/poptconfig.c')
| -rw-r--r-- | lib/popt/poptconfig.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/lib/popt/poptconfig.c b/lib/popt/poptconfig.c new file mode 100644 index 0000000000..837828ccf9 --- /dev/null +++ b/lib/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; +} |