diff options
| -rw-r--r-- | lib/libpm.c | 24 | ||||
| -rw-r--r-- | lib/pm.h | 3 |
2 files changed, 27 insertions, 0 deletions
diff --git a/lib/libpm.c b/lib/libpm.c index 21d869a5..d1fc6c42 100644 --- a/lib/libpm.c +++ b/lib/libpm.c @@ -906,3 +906,27 @@ pm_parse_height(const char * const arg) { +unsigned int +pm_parse_maxval(const char * const arg) { +/*---------------------------------------------------------------------------- + Same as pm_parse_width(), but for maxval. +-----------------------------------------------------------------------------*/ + unsigned int maxval; + const char * error; + + pm_string_to_uint(arg, &maxval, &error); + + if (error) { + pm_error("'%s' is invalid as a maxval. %s", arg, error); + pm_strfree(error); + } else { + if (maxval > INT_MAX-1) + pm_error("Maxval %u is too large for computations.", maxval); + if (maxval == 0) + pm_error("Maxval argument must be a positive number. You " + "specified 0."); + } + return maxval; +} + + diff --git a/lib/pm.h b/lib/pm.h index 2a87aca1..62ad5355 100644 --- a/lib/pm.h +++ b/lib/pm.h @@ -458,6 +458,9 @@ pm_parse_width(const char * const arg); unsigned int pm_parse_height(const char * const arg); +unsigned int +pm_parse_maxval(const char * const arg); + #ifdef __cplusplus } #endif |