diff options
Diffstat (limited to 'src/m_argv.c')
-rw-r--r-- | src/m_argv.c | 166 |
1 files changed, 165 insertions, 1 deletions
diff --git a/src/m_argv.c b/src/m_argv.c index fd04631c..9e119876 100644 --- a/src/m_argv.c +++ b/src/m_argv.c @@ -24,9 +24,13 @@ //----------------------------------------------------------------------------- - +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> #include <string.h> +#include "i_system.h" + int myargc; char** myargv; @@ -52,6 +56,166 @@ int M_CheckParm (char *check) return 0; } +#define MAXARGVS 100 + +static void LoadResponseFile(int argv_index) +{ + FILE *handle; + int size; + char *infile; + char *file; + char *response_filename; + char **newargv; + int newargc; + int i, k; + + response_filename = myargv[argv_index] + 1; + + // Read the response file into memory + handle = fopen(response_filename, "r"); + + if (handle == NULL) + { + printf ("\nNo such response file!"); + exit(1); + } + + printf("Found response file %s!\n", response_filename); + + // Find size of file + + fseek(handle, 0, SEEK_END); + size = ftell(handle); + fseek(handle, 0, SEEK_SET); + + // Read in the entire file + // Allocate one byte extra - this is incase there is an argument + // at the end of the response file, in which case a '\0' will be + // needed. + + file = malloc(size + 1); + fread(file, size, 1, handle); + fclose(handle); + + // Create new arguments list array + + newargv = malloc(sizeof(char *) * MAXARGVS); + newargc = 0; + memset(newargv, 0, sizeof(char *) * MAXARGVS); + + // Copy all the arguments in the list up to the response file + + for (i=0; i<argv_index; ++i) + { + newargv[i] = myargv[i]; + ++newargc; + } + + infile = file; + k = 0; + + while(k < size) + { + // Skip past space characters to the next argument + + while(k < size && isspace(infile[k])) + { + ++k; + } + + if (k >= size) + { + break; + } + + // If the next argument is enclosed in quote marks, treat + // the contents as a single argument. This allows long filenames + // to be specified. + + if (infile[k] == '\"') + { + // Skip the first character(") + ++k; + + newargv[newargc++] = &infile[k]; + + // Read all characters between quotes + + while (k < size && infile[k] != '\"' && infile[k] != '\n') + { + ++k; + } + + if (k >= size || infile[k] == '\n') + { + I_Error("Quotes unclosed in response file '%s'", + response_filename); + } + + // Cut off the string at the closing quote + + infile[k] = '\0'; + ++k; + } + else + { + // Read in the next argument until a space is reached + + newargv[newargc++] = &infile[k]; + + while(k < size && !isspace(infile[k])) + { + ++k; + } + + // Cut off the end of the argument at the first space + + infile[k] = '\0'; + + ++k; + } + } + + // Add arguments following the response file argument + + for (i=argv_index + 1; i<myargc; ++i) + { + newargv[newargc] = myargv[i]; + ++newargc; + } + + myargv = newargv; + myargc = newargc; + +#if 0 + // Disabled - Vanilla Doom does not do this. + // Display arguments + + printf("%d command-line args:\n", myargc); + + for (k=1; k<myargc; k++) + { + printf("'%s'\n", myargv[k]); + } +#endif +} + +// +// Find a Response File +// +void M_FindResponseFile(void) +{ + int i; + + for (i = 1; i < myargc; i++) + { + if (myargv[i][0] == '@') + { + LoadResponseFile(i); + } + } +} + |