again, this isnt meant for inclusion, just for those who would find such a thing useful
this patch includes support for more architectures and fixes a possible buffer overflow ... previously, it was assumed that the key (and included whitespace) would not exceed 63 bytes and that the value (and included whitespace) would not exceed 256 bytes. although this is highly unlikely to appear in the /proc/cpuinfo, it's a bug none the less ;) this version reads just the first 64 bytes of the key and the first 256 bytes of the value and throws away the rest -mike
pgpVRnWfSRuah.pgp
Description: PGP signature
On linux platforms, grok /proc/cpuinfo for the CPU/vendor info. Prob not suitable for upstream seeing as how it's 100% linux-specific http://lists.gnu.org/archive/html/bug-coreutils/2005-09/msg00063.html Patch originally by Carlos E. Gorges <[EMAIL PROTECTED]>, but heavily reworked to suck less. To add support for additional platforms, check out the show_cpuinfo() func in the linux/arch/<ARCH>/ source tree of the kernel. --- coreutils/src/uname.c +++ coreutils/src/uname.c @@ -51,6 +51,11 @@ # include <mach-o/arch.h> #endif +#if defined (__linux__) +# define USE_PROCINFO +# define UNAME_HARDWARE_PLATFORM +#endif + #include "system.h" #include "error.h" #include "quote.h" @@ -138,6 +143,106 @@ exit (status); } +#if defined(USE_PROCINFO) + +# if defined(__s390__) || defined(__s390x__) +# define CPUINFO_FILE "/proc/sysinfo" +# define CPUINFO_FORMAT "%64[^\t :]%*[ :]%256[^\n]%c" +# else +# define CPUINFO_FILE "/proc/cpuinfo" +# define CPUINFO_FORMAT "%64[^\t:]\t:%256[^\n]%c" +# endif + +# define PROCINFO_PROCESSOR 0 +# define PROCINFO_HARDWARE_PLATFORM 1 + +static void __eat_cpuinfo_space(char *buf) +{ + /* first eat trailing space */ + char *tmp = buf + strlen(buf) - 1; + while (tmp > buf && isspace(*tmp)) + *tmp-- = '\0'; + /* then eat leading space */ + tmp = buf; + while (*tmp && isspace(*tmp)) + tmp++; + if (tmp != buf) + memmove(buf, tmp, strlen(tmp)+1); +} + +static int __linux_procinfo (int x, char *fstr, size_t s) +{ + FILE *fp; + + char *procinfo_keys[] = { + /* --processor --hardware-platform */ + #if defined(__alpha__) + "cpu model", "system type" + #elif defined(__arm__) + "Processor", "Hardware" + #elif defined(bfin) + "CPU", "BOARD Name" + #elif defined(__cris__) + "cpu", "cpu model" + #elif defined(__frv__) + "CPU-Core", "System" + #elif defined(__i386__) || defined(__x86_64__) + "model name", "vendor_id" + #elif defined(__ia64__) + "family", "vendor" + #elif defined(__hppa__) + "cpu", "model" + #elif defined(__m68k__) + "CPU", "MMU" + #elif defined(__mips__) + "cpu model", "system type" + #elif defined(__powerpc__) || defined(__powerpc64__) + "cpu", "machine" + #elif defined(__s390__) || defined(__s390x__) + "Type", "Manufacturer" + #elif defined(__sh__) + "cpu type", "machine" + #elif defined(sparc) || defined(__sparc__) + "type", "cpu" + #elif defined(__vax__) + "cpu type", "cpu" + #else + "unknown", "unknown" + #endif + }; + + if ((fp = fopen(CPUINFO_FILE, "r")) != NULL) { + char key[65], value[257], eol, *ret = NULL; + + while (fscanf(fp, CPUINFO_FORMAT, key, value, &eol) != EOF) { + __eat_cpuinfo_space(key); + if (!strcmp(key, procinfo_keys[x])) { + __eat_cpuinfo_space(value); + ret = value; + break; + } + if (eol != '\n') { + /* we need two fscanf's here in case the previous + * length limit caused us to read right up to the + * newline ... doing "%*[^\n]\n" wont eat the newline + */ + fscanf(fp, "%*[^\n]"); + fscanf(fp, "\n"); + } + } + fclose(fp); + + if (ret) { + strncpy(fstr, ret, s); + return 0; + } + } + + return -1; +} + +#endif + /* Print ELEMENT, preceded by a space if something has already been printed. */ @@ -250,10 +344,14 @@ main (int argc, char **argv) if (toprint & PRINT_PROCESSOR) { char const *element = unknown; -#if HAVE_SYSINFO && defined SI_ARCHITECTURE +#if ( HAVE_SYSINFO && defined SI_ARCHITECTURE ) || defined(USE_PROCINFO) { static char processor[257]; +#if defined(USE_PROCINFO) + if (0 <= __linux_procinfo (PROCINFO_PROCESSOR, processor, sizeof processor)) +#else if (0 <= sysinfo (SI_ARCHITECTURE, processor, sizeof processor)) +#endif element = processor; } #endif @@ -306,9 +404,13 @@ main (int argc, char **argv) if (element == unknown) { static char hardware_platform[257]; +#if defined(USE_PROCINFO) + if (0 <= __linux_procinfo (PROCINFO_HARDWARE_PLATFORM, hardware_platform, sizeof hardware_platform)) +#else size_t s = sizeof hardware_platform; static int mib[] = { CTL_HW, UNAME_HARDWARE_PLATFORM }; if (sysctl (mib, 2, hardware_platform, &s, 0, 0) >= 0) +#endif element = hardware_platform; } #endif
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