diff options
Diffstat (limited to 'usr/src/cmd/awk/main.c')
| -rw-r--r-- | usr/src/cmd/awk/main.c | 77 |
1 files changed, 57 insertions, 20 deletions
diff --git a/usr/src/cmd/awk/main.c b/usr/src/cmd/awk/main.c index b07f2c5b0a..cb87917311 100644 --- a/usr/src/cmd/awk/main.c +++ b/usr/src/cmd/awk/main.c @@ -66,21 +66,22 @@ char *version = "version Oct 11, 1989"; int dbg = 0; +Awkfloat srand_seed = 1; char *cmdname; /* gets argv[0] for error messages */ char *lexprog; /* points to program argument if it exists */ int compile_time = 2; /* for error printing: */ /* 2 = cmdline, 1 = compile, 0 = running */ -char radixpoint = '.'; static char **pfile = NULL; /* program filenames from -f's */ static int npfile = 0; /* number of filenames */ static int curpfile = 0; /* current filename */ +int safe = 0; /* 1 => "safe" mode */ + int main(int argc, char *argv[], char *envp[]) { const char *fs = NULL; - char *nl_radix; /* * At this point, numbers are still scanned as in * the POSIX locale. @@ -100,9 +101,19 @@ main(int argc, char *argv[], char *envp[]) exit(1); } (void) signal(SIGFPE, fpecatch); + + srand_seed = 1; + srand((unsigned int)srand_seed); + yyin = NULL; - syminit(); + symtab = makesymtab(NSYMTAB/NSYMTAB); while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { + if (strcmp(argv[1], "-version") == 0 || + strcmp(argv[1], "--version") == 0) { + (void) printf("awk %s\n", version); + exit(0); + break; + } if (strcmp(argv[1], "--") == 0) { /* explicit end of args */ argc--; @@ -110,15 +121,27 @@ main(int argc, char *argv[], char *envp[]) break; } switch (argv[1][1]) { + case 's': + if (strcmp(argv[1], "-safe") == 0) + safe = 1; + break; case 'f': /* next argument is program filename */ - argc--; - argv++; - if (argc <= 1) - FATAL("no program filename"); - pfile = realloc(pfile, sizeof (char *) * (npfile + 1)); - if (pfile == NULL) - FATAL("out of space in main"); - pfile[npfile++] = argv[1]; + if (argv[1][2] != 0) { /* arg is -fsomething */ + pfile = realloc(pfile, + sizeof (char *) * (npfile + 1)); + if (pfile == NULL) + FATAL("out of space in main"); + pfile[npfile++] = &argv[1][2]; + } else { /* arg is -f something */ + argc--; argv++; + if (argc <= 1) + FATAL("no program filename"); + pfile = realloc(pfile, + sizeof (char *) * (npfile + 1)); + if (pfile == NULL) + FATAL("out of space in main"); + pfile[npfile++] = argv[1]; + } break; case 'F': /* set field separator */ if (argv[1][2] != 0) { /* arg is -Fsomething */ @@ -142,9 +165,22 @@ main(int argc, char *argv[], char *envp[]) WARNING("field separator FS is empty"); break; case 'v': /* -v a=1 to be done NOW. one -v for each */ - if (argv[1][2] == '\0' && --argc > 1 && - isclvar((++argv)[1])) - setclvar(argv[1]); + if (argv[1][2] != 0) { /* arg is -vsomething */ + if (isclvar(&argv[1][2])) + setclvar(&argv[1][2]); + else + FATAL("invalid -v option argument: %s", + &argv[1][2]); + } else { /* arg is -v something */ + argc--; argv++; + if (argc <= 1) + FATAL("no variable name"); + if (isclvar(argv[1])) + setclvar(argv[1]); + else + FATAL("invalid -v option argument: %s", + argv[1]); + } break; case 'd': dbg = atoi(&argv[1][2]); @@ -171,11 +207,14 @@ main(int argc, char *argv[], char *envp[]) argc--; argv++; } + recinit(recsize); + syminit(); compile_time = 1; argv[0] = cmdname; /* put prog name at front of arglist */ dprintf(("argc=%d, argv[0]=%s\n", argc, argv[0])); arginit(argc, argv); - envinit(envp); + if (!safe) + envinit(envp); (void) yyparse(); if (fs) *FS = qstring(fs, '\0'); @@ -184,9 +223,6 @@ main(int argc, char *argv[], char *envp[]) * done parsing, so now activate the LC_NUMERIC */ (void) setlocale(LC_ALL, ""); - nl_radix = nl_langinfo(RADIXCHAR); - if (nl_radix) - radixpoint = *nl_radix; if (errorflag == 0) { compile_time = 0; @@ -206,7 +242,7 @@ pgetc(void) /* get 1 character from awk program */ if (curpfile >= npfile) return (EOF); yyin = (strcmp(pfile[curpfile], "-") == 0) ? - stdin : fopen(pfile[curpfile], "r"); + stdin : fopen(pfile[curpfile], "rF"); if (yyin == NULL) { FATAL("can't open file %s", pfile[curpfile]); } @@ -214,7 +250,8 @@ pgetc(void) /* get 1 character from awk program */ } if ((c = getc(yyin)) != EOF) return (c); - (void) fclose(yyin); + if (yyin != stdin) + (void) fclose(yyin); yyin = NULL; curpfile++; } |